update gitea.com/go-chi/binding

This commit is contained in:
Matti R 2021-07-07 12:19:54 -04:00
parent 9543e068e9
commit dea2f292b1
No known key found for this signature in database
GPG key ID: 9D8A57ADAA232E95
81 changed files with 34695 additions and 74 deletions

3
go.mod
View file

@ -6,7 +6,7 @@ require (
cloud.google.com/go v0.78.0 // indirect
code.gitea.io/gitea-vet v0.2.1
code.gitea.io/sdk/gitea v0.14.0
gitea.com/go-chi/binding v0.0.0-20210301195521-1fe1c9a555e7
gitea.com/go-chi/binding v0.0.0-20210609153201-b29e04170477
gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e
gitea.com/go-chi/captcha v0.0.0-20210110083842-e7696c336a1e
gitea.com/go-chi/session v0.0.0-20210108030337-0cb48c5ba8ee
@ -48,6 +48,7 @@ require (
github.com/go-swagger/go-swagger v0.27.0
github.com/go-testfixtures/testfixtures/v3 v3.6.1
github.com/gobwas/glob v0.2.3
github.com/goccy/go-json v0.7.4 // indirect
github.com/gogs/chardet v0.0.0-20191104214054-4b6791f73a28
github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14
github.com/gogs/go-gogs-client v0.0.0-20210131175652-1d7215cd8d85

7
go.sum
View file

@ -41,8 +41,8 @@ code.gitea.io/gitea-vet v0.2.1/go.mod h1:zcNbT/aJEmivCAhfmkHOlT645KNOf9W2KnkLgFj
code.gitea.io/sdk/gitea v0.14.0 h1:m4J352I3p9+bmJUfS+g0odeQzBY/5OXP91Gv6D4fnJ0=
code.gitea.io/sdk/gitea v0.14.0/go.mod h1:89WiyOX1KEcvjP66sRHdu0RafojGo60bT9UqW17VbWs=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
gitea.com/go-chi/binding v0.0.0-20210301195521-1fe1c9a555e7 h1:xCVJPY823C8RWpgMabTw2kOglDrg0iS3GcQU6wdwHkU=
gitea.com/go-chi/binding v0.0.0-20210301195521-1fe1c9a555e7/go.mod h1:AyfTrwtfYN54R/HmVvMYPnSTenH5bVoyh8x6tBluxEA=
gitea.com/go-chi/binding v0.0.0-20210609153201-b29e04170477 h1:o8CEceCBHMex61zn701nf+H135AM6cLDVyS0CIxIMXk=
gitea.com/go-chi/binding v0.0.0-20210609153201-b29e04170477/go.mod h1:XLVNELjshIpiNhaHQMX6qItCL4TekmcySDZAIA34VCs=
gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e h1:zgPGaf3kXP0cVm9J0l8ZA2+XDzILYATg0CXbihR6N+o=
gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e/go.mod h1:k2V/gPDEtXGjjMGuBJiapffAXTv76H4snSmlJRLUhH0=
gitea.com/go-chi/captcha v0.0.0-20210110083842-e7696c336a1e h1:YjaQU6XFicdhPN+MlGolcXO8seYY2+EY5g7vZPB17CQ=
@ -464,6 +464,9 @@ github.com/gobuffalo/packr/v2 v2.2.0/go.mod h1:CaAwI0GPIAv+5wKLtv8Afwl+Cm78K/I/V
github.com/gobuffalo/syncx v0.0.0-20190224160051-33c29581e754/go.mod h1:HhnNqWY95UYwwW3uSASeV7vtgYkT2t16hJgV3AEPUpw=
github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
github.com/goccy/go-json v0.4.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/goccy/go-json v0.7.4 h1:B44qRUFwz/vxPKPISQ1KhvzRi9kZ28RAf6YtjriBZ5k=
github.com/goccy/go-json v0.7.4/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/gofrs/uuid v3.2.0+incompatible h1:y12jRkkFxsd7GpqdSZ+/KCs/fJbqpEXSGd4+jfEaewE=
github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=

View file

@ -1,9 +1,14 @@
---
kind: pipeline
name: go1-1-1
name: go1-13
platform:
os: linux
arch: arm64
steps:
- name: test
image: golang:1.11
image: golang:1.13
environment:
GOPROXY: https://goproxy.cn
commands:
@ -12,11 +17,15 @@ steps:
---
kind: pipeline
name: go1-1-2
name: go1-16
platform:
os: linux
arch: arm64
steps:
- name: test
image: golang:1.12
image: golang:1.16
environment:
GOPROXY: https://goproxy.cn
commands:

View file

@ -29,7 +29,7 @@ import (
"strings"
"unicode/utf8"
jsoniter "github.com/json-iterator/go"
"github.com/goccy/go-json"
"github.com/unknwon/com"
)
@ -89,7 +89,6 @@ func errorHandler(errs Errors, rw http.ResponseWriter) {
} else {
rw.WriteHeader(STATUS_UNPROCESSABLE_ENTITY)
}
json := jsoniter.ConfigCompatibleWithStandardLibrary
errOutput, _ := json.Marshal(errs)
rw.Write(errOutput)
return
@ -172,7 +171,6 @@ func JSON(req *http.Request, jsonStruct interface{}) Errors {
if req.Body != nil {
defer req.Body.Close()
json := jsoniter.ConfigCompatibleWithStandardLibrary
err := json.NewDecoder(req.Body).Decode(jsonStruct)
if err != nil && err != io.EOF {
errors.Add([]string{}, ERR_DESERIALIZATION, err.Error())
@ -233,9 +231,9 @@ func Validate(req *http.Request, obj interface{}) Errors {
}
var (
AlphaDashPattern = regexp.MustCompile("[^\\d\\w-_]")
AlphaDashDotPattern = regexp.MustCompile("[^\\d\\w-_\\.]")
EmailPattern = regexp.MustCompile("[\\w!#$%&'*+/=?^_`{|}~-]+(?:\\.[\\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\\w](?:[\\w-]*[\\w])?\\.)+[a-zA-Z0-9](?:[\\w-]*[\\w])?")
AlphaDashPattern = regexp.MustCompile(`[^\d\w-_]`)
AlphaDashDotPattern = regexp.MustCompile(`[^\d\w-_\.]`)
EmailPattern = regexp.MustCompile(`\A[\w!#$%&'*+/=?^_`+"`"+`{|}~-]+(?:\.[\w!#$%&'*+/=?^_`+"`"+`{|}~-]+)*@(?:[\w](?:[\w-]*[\w])?\.)+[a-zA-Z0-9](?:[\w-]*[\w])?\z`)
)
// Copied from github.com/asaskevich/govalidator.
@ -250,7 +248,7 @@ var (
urlSubdomainRx = `((www\.)|([a-zA-Z0-9]([-\.][-\._a-zA-Z0-9]+)*))`
urlPortRx = `(:(\d{1,5}))`
urlPathRx = `((\/|\?|#)[^\s]*)`
URLPattern = regexp.MustCompile(`^` + urlSchemaRx + `?` + urlUsernameRx + `?` + `((` + urlIPRx + `|(\[` + ipRx + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + urlSubdomainRx + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + urlPortRx + `?` + urlPathRx + `?$`)
URLPattern = regexp.MustCompile(`\A` + urlSchemaRx + `?` + urlUsernameRx + `?` + `((` + urlIPRx + `|(\[` + ipRx + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + urlSubdomainRx + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + urlPortRx + `?` + urlPathRx + `?\z`)
)
// IsURL check if the string is an URL.
@ -390,32 +388,41 @@ func validateField(errors Errors, zero interface{}, field reflect.StructField, f
}
}
rules := strings.Split(field.Tag.Get("binding"), ";")
if reflect.DeepEqual(zero, fieldValue) {
for _, rule := range rules {
if rule == "Required" {
errors.Add([]string{field.Name}, ERR_REQUIRED, "Required")
break
}
if strings.HasPrefix(rule, "Default(") {
if fieldVal.CanSet() {
errors = setWithProperType(field.Type.Kind(), rule[8:len(rule)-1], fieldVal, field.Tag.Get("form"), errors)
} else {
errors.Add([]string{field.Name}, ERR_EXCLUDE, "Default")
}
break
}
}
return errors
}
VALIDATE_RULES:
for _, rule := range strings.Split(field.Tag.Get("binding"), ";") {
for _, rule := range rules {
if len(rule) == 0 {
continue
}
switch {
case rule == "OmitEmpty":
if reflect.DeepEqual(zero, fieldValue) {
break VALIDATE_RULES
}
case rule == "Required":
v := reflect.ValueOf(fieldValue)
if v.Kind() == reflect.Slice {
if v.Len() == 0 {
errors.Add([]string{field.Name}, ERR_REQUIRED, "Required")
break VALIDATE_RULES
}
continue
case strings.HasPrefix(rule, "Default("):
continue
case rule == "OmitEmpty": // legacy
continue
continue
}
if reflect.DeepEqual(zero, fieldValue) {
errors.Add([]string{field.Name}, ERR_REQUIRED, "Required")
break VALIDATE_RULES
}
case rule == "AlphaDash":
if AlphaDashPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
errors.Add([]string{field.Name}, ERR_ALPHA_DASH, "AlphaDash")
@ -432,8 +439,7 @@ VALIDATE_RULES:
errors.Add([]string{field.Name}, ERR_SIZE, "Size")
break VALIDATE_RULES
}
v := reflect.ValueOf(fieldValue)
if v.Kind() == reflect.Slice && v.Len() != size {
if fieldVal.Kind() == reflect.Slice && fieldVal.Len() != size {
errors.Add([]string{field.Name}, ERR_SIZE, "Size")
break VALIDATE_RULES
}
@ -443,8 +449,7 @@ VALIDATE_RULES:
errors.Add([]string{field.Name}, ERR_MIN_SIZE, "MinSize")
break VALIDATE_RULES
}
v := reflect.ValueOf(fieldValue)
if v.Kind() == reflect.Slice && v.Len() < min {
if fieldVal.Kind() == reflect.Slice && fieldVal.Len() < min {
errors.Add([]string{field.Name}, ERR_MIN_SIZE, "MinSize")
break VALIDATE_RULES
}
@ -454,8 +459,7 @@ VALIDATE_RULES:
errors.Add([]string{field.Name}, ERR_MAX_SIZE, "MaxSize")
break VALIDATE_RULES
}
v := reflect.ValueOf(fieldValue)
if v.Kind() == reflect.Slice && v.Len() > max {
if fieldVal.Kind() == reflect.Slice && fieldVal.Len() > max {
errors.Add([]string{field.Name}, ERR_MAX_SIZE, "MaxSize")
break VALIDATE_RULES
}
@ -476,9 +480,7 @@ VALIDATE_RULES:
}
case rule == "Url":
str := fmt.Sprintf("%v", fieldValue)
if len(str) == 0 {
continue
} else if !isURL(str) {
if !isURL(str) {
errors.Add([]string{field.Name}, ERR_URL, "Url")
break VALIDATE_RULES
}
@ -502,15 +504,6 @@ VALIDATE_RULES:
errors.Add([]string{field.Name}, ERR_EXCLUDE, "Exclude")
break VALIDATE_RULES
}
case strings.HasPrefix(rule, "Default("):
if reflect.DeepEqual(zero, fieldValue) {
if fieldVal.CanAddr() {
errors = setWithProperType(field.Type.Kind(), rule[8:len(rule)-1], fieldVal, field.Tag.Get("form"), errors)
} else {
errors.Add([]string{field.Name}, ERR_EXCLUDE, "Default")
break VALIDATE_RULES
}
}
default:
// Apply custom validation rules
var isValid bool

View file

@ -4,7 +4,7 @@ go 1.13
require (
github.com/go-chi/chi v1.5.1
github.com/json-iterator/go v1.1.10
github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337
github.com/goccy/go-json v0.4.11
github.com/stretchr/testify v1.3.0
github.com/unknwon/com v0.0.0-20190804042917-757f69c95f3e
)

View file

@ -1,37 +1,21 @@
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/go-chi/chi v1.5.1 h1:kfTK3Cxd/dkMu/rKs5ZceWYp+t5CtiE7vmaTv3LjC6w=
github.com/go-chi/chi v1.5.1/go.mod h1:REp24E+25iKvxgeTfHmdUoL5x15kBiDBlnIl5bCwe2k=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/goccy/go-json v0.4.11 h1:92nyX606ZN/cUFwctfxwDWm8YWSA38Zlv9s7taFeLyo=
github.com/goccy/go-json v0.4.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e h1:JKmoR8x90Iww1ks85zJ1lfDGgIiMDuIptTOhJq+zKyg=
github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
github.com/jtolds/gls v4.2.1+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304 h1:Jpy1PXuP99tXNrhbq2BaPz9B+jNAvH1JPQQpG/9GCXY=
github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c h1:Ho+uVpkel/udgjbwB5Lktg9BtvJSh2DT0Hi6LPSyI2w=
github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c/go.mod h1:XDJAKZRPZ1CvBcN2aX5YOUTYGHki24fSF0Iv48Ibg0s=
github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 h1:WN9BUFbdyOsSH/XohnWpXOlq9NBD5sGAB2FciQMUEe8=
github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/unknwon/com v0.0.0-20190804042917-757f69c95f3e h1:GSGeB9EAKY2spCABz6xOX5DbxZEXolK+nBSvmsQwRjM=
github.com/unknwon/com v0.0.0-20190804042917-757f69c95f3e/go.mod h1:tOOxU81rwgoCLoOVVPHb6T/wt8HZygqH5id+GNnlCXM=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=

32
vendor/github.com/goccy/go-json/.codecov.yml generated vendored Normal file
View file

@ -0,0 +1,32 @@
codecov:
require_ci_to_pass: yes
coverage:
precision: 2
round: down
range: "70...100"
status:
project:
default:
target: 70%
threshold: 2%
patch: off
changes: no
parsers:
gcov:
branch_detection:
conditional: yes
loop: yes
method: no
macro: no
comment:
layout: "header,diff"
behavior: default
require_changes: no
ignore:
- internal/encoder/vm_color
- internal/encoder/vm_color_indent

2
vendor/github.com/goccy/go-json/.gitignore generated vendored Normal file
View file

@ -0,0 +1,2 @@
cover.html
cover.out

75
vendor/github.com/goccy/go-json/.golangci.yml generated vendored Normal file
View file

@ -0,0 +1,75 @@
run:
skip-files:
- encode_optype.go
- ".*_test\\.go$"
linters-settings:
govet:
enable-all: true
disable:
- shadow
linters:
enable-all: true
disable:
- dogsled
- dupl
- exhaustive
- exhaustivestruct
- errorlint
- forbidigo
- funlen
- gci
- gochecknoglobals
- gochecknoinits
- gocognit
- gocritic
- gocyclo
- godot
- godox
- goerr113
- gofumpt
- gomnd
- gosec
- ifshort
- lll
- makezero
- nakedret
- nestif
- nlreturn
- paralleltest
- testpackage
- thelper
- wrapcheck
- interfacer
- lll
- nakedret
- nestif
- nlreturn
- testpackage
- wsl
issues:
exclude-rules:
# not needed
- path: /*.go
text: "ST1003: should not use underscores in package names"
linters:
- stylecheck
- path: /*.go
text: "don't use an underscore in package name"
linters:
- golint
- path: rtype.go
linters:
- golint
- stylecheck
- path: error.go
linters:
- staticcheck
# Maximum issues count per one linter. Set to 0 to disable. Default is 50.
max-issues-per-linter: 0
# Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
max-same-issues: 0

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# v0.7.4 - 2021/07/06
* Fix encoding of indirect layout structure ( #264 )
# v0.7.3 - 2021/06/29
* Fix encoding of pointer type in empty interface ( #262 )
# v0.7.2 - 2021/06/26
### Fix decoder
* Add decoder for func type to fix decoding of nil function value ( #257 )
* Fix stream decoding of []byte type ( #258 )
### Performance
* Improve decoding performance of map[string]interface{} type ( use `mapassign_faststr` ) ( #256 )
* Improve encoding performance of empty interface type ( remove recursive calling of `vm.Run` ) ( #259 )
### Benchmark
* Add bytedance/sonic as benchmark target ( #254 )
# v0.7.1 - 2021/06/18
### Fix decoder
* Fix error when unmarshal empty array ( #253 )
# v0.7.0 - 2021/06/12
### Support context for MarshalJSON and UnmarshalJSON ( #248 )
* json.MarshalContext(context.Context, interface{}, ...json.EncodeOption) ([]byte, error)
* json.NewEncoder(io.Writer).EncodeContext(context.Context, interface{}, ...json.EncodeOption) error
* json.UnmarshalContext(context.Context, []byte, interface{}, ...json.DecodeOption) error
* json.NewDecoder(io.Reader).DecodeContext(context.Context, interface{}) error
```go
type MarshalerContext interface {
MarshalJSON(context.Context) ([]byte, error)
}
type UnmarshalerContext interface {
UnmarshalJSON(context.Context, []byte) error
}
```
### Add DecodeFieldPriorityFirstWin option ( #242 )
In the default behavior, go-json, like encoding/json, will reflect the result of the last evaluation when a field with the same name exists. I've added new options to allow you to change this behavior. `json.DecodeFieldPriorityFirstWin` option reflects the result of the first evaluation if a field with the same name exists. This behavior has a performance advantage as it allows the subsequent strings to be skipped if all fields have been evaluated.
### Fix encoder
* Fix indent number contains recursive type ( #249 )
* Fix encoding of using empty interface as map key ( #244 )
### Fix decoder
* Fix decoding fields containing escaped characters ( #237 )
### Refactor
* Move some tests to subdirectory ( #243 )
* Refactor package layout for decoder ( #238 )
# v0.6.1 - 2021/06/02
### Fix encoder
* Fix value of totalLength for encoding ( #236 )
# v0.6.0 - 2021/06/01
### Support Colorize option for encoding (#233)
```go
b, err := json.MarshalWithOption(v, json.Colorize(json.DefaultColorScheme))
if err != nil {
...
}
fmt.Println(string(b)) // print colored json
```
### Refactor
* Fix opcode layout - Adjust memory layout of the opcode to 128 bytes in a 64-bit environment ( #230 )
* Refactor encode option ( #231 )
* Refactor escape string ( #232 )
# v0.5.1 - 2021/5/20
### Optimization
* Add type addrShift to enable bigger encoder/decoder cache ( #213 )
### Fix decoder
* Keep original reference of slice element ( #229 )
### Refactor
* Refactor Debug mode for encoding ( #226 )
* Generate VM sources for encoding ( #227 )
* Refactor validator for null/true/false for decoding ( #221 )
# v0.5.0 - 2021/5/9
### Supports using omitempty and string tags at the same time ( #216 )
### Fix decoder
* Fix stream decoder for unicode char ( #215 )
* Fix decoding of slice element ( #219 )
* Fix calculating of buffer length for stream decoder ( #220 )
### Refactor
* replace skipWhiteSpace goto by loop ( #212 )
# v0.4.14 - 2021/5/4
### Benchmark
* Add valyala/fastjson to benchmark ( #193 )
* Add benchmark task for CI ( #211 )
### Fix decoder
* Fix decoding of slice with unmarshal json type ( #198 )
* Fix decoding of null value for interface type that does not implement Unmarshaler ( #205 )
* Fix decoding of null value to []byte by json.Unmarshal ( #206 )
* Fix decoding of backslash char at the end of string ( #207 )
* Fix stream decoder for null/true/false value ( #208 )
* Fix stream decoder for slow reader ( #211 )
### Performance
* If cap of slice is enough, reuse slice data for compatibility with encoding/json ( #200 )
# v0.4.13 - 2021/4/20
### Fix json.Compact and json.Indent
* Support validation the input buffer for json.Compact and json.Indent ( #189 )
* Optimize json.Compact and json.Indent ( improve memory footprint ) ( #190 )
# v0.4.12 - 2021/4/15
### Fix encoder
* Fix unnecessary indent for empty slice type ( #181 )
* Fix encoding of omitempty feature for the slice or interface type ( #183 )
* Fix encoding custom types zero values with omitempty when marshaller exists ( #187 )
### Fix decoder
* Fix decoder for invalid top level value ( #184 )
* Fix decoder for invalid number value ( #185 )
# v0.4.11 - 2021/4/3
* Improve decoder performance for interface type
# v0.4.10 - 2021/4/2
### Fix encoder
* Fixed a bug when encoding slice and map containing recursive structures
* Fixed a logic to determine if indirect reference
# v0.4.9 - 2021/3/29
### Add debug mode
If you use `json.MarshalWithOption(v, json.Debug())` and `panic` occurred in `go-json`, produces debug information to console.
### Support a new feature to compatible with encoding/json
- invalid UTF-8 is coerced to valid UTF-8 ( without performance down )
### Fix encoder
- Fixed handling of MarshalJSON of function type
### Fix decoding of slice of pointer type
If there is a pointer value, go-json will use it. (This behavior is necessary to achieve the ability to prioritize pre-filled values). However, since slices are reused internally, there was a bug that referred to the previous pointer value. Therefore, it is not necessary to refer to the pointer value in advance for the slice element, so we explicitly initialize slice element by `nil`.
# v0.4.8 - 2021/3/21
### Reduce memory usage at compile time
* go-json have used about 2GB of memory at compile time, but now it can compile with about less than 550MB.
### Fix any encoder's bug
* Add many test cases for encoder
* Fix composite type ( slice/array/map )
* Fix pointer types
* Fix encoding of MarshalJSON or MarshalText or json.Number type
### Refactor encoder
* Change package layout for reducing memory usage at compile
* Remove anonymous and only operation
* Remove root property from encodeCompileContext and opcode
### Fix CI
* Add Go 1.16
* Remove Go 1.13
* Fix `make cover` task
### Number/Delim/Token/RawMessage use the types defined in encoding/json by type alias
# v0.4.7 - 2021/02/22
### Fix decoder
* Fix decoding of deep recursive structure
* Fix decoding of embedded unexported pointer field
* Fix invalid test case
* Fix decoding of invalid value
* Fix decoding of prefilled value
* Fix not being able to return UnmarshalTypeError when it should be returned
* Fix decoding of null value
* Fix decoding of type of null string
* Use pre allocated pointer if exists it at decoding
### Reduce memory usage at compile
* Integrate int/int8/int16/int32/int64 and uint/uint8/uint16/uint32/uint64 operation to reduce memory usage at compile
### Remove unnecessary optype

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MIT License
Copyright (c) 2020 Masaaki Goshima
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

39
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PKG := github.com/goccy/go-json
BIN_DIR := $(CURDIR)/bin
PKGS := $(shell go list ./... | grep -v internal/cmd|grep -v test)
COVER_PKGS := $(foreach pkg,$(PKGS),$(subst $(PKG),.,$(pkg)))
COMMA := ,
EMPTY :=
SPACE := $(EMPTY) $(EMPTY)
COVERPKG_OPT := $(subst $(SPACE),$(COMMA),$(COVER_PKGS))
$(BIN_DIR):
@mkdir -p $(BIN_DIR)
.PHONY: cover
cover:
go test -coverpkg=$(COVERPKG_OPT) -coverprofile=cover.out ./...
.PHONY: cover-html
cover-html: cover
go tool cover -html=cover.out
.PHONY: lint
lint: golangci-lint
golangci-lint run
golangci-lint: | $(BIN_DIR)
@{ \
set -e; \
GOLANGCI_LINT_TMP_DIR=$$(mktemp -d); \
cd $$GOLANGCI_LINT_TMP_DIR; \
go mod init tmp; \
GOBIN=$(BIN_DIR) go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.36.0; \
rm -rf $$GOLANGCI_LINT_TMP_DIR; \
}
.PHONY: generate
generate:
go generate ./internal/...

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# go-json
![Go](https://github.com/goccy/go-json/workflows/Go/badge.svg)
[![GoDoc](https://godoc.org/github.com/goccy/go-json?status.svg)](https://pkg.go.dev/github.com/goccy/go-json?tab=doc)
[![codecov](https://codecov.io/gh/goccy/go-json/branch/master/graph/badge.svg)](https://codecov.io/gh/goccy/go-json)
Fast JSON encoder/decoder compatible with encoding/json for Go
<img width="400px" src="https://user-images.githubusercontent.com/209884/92572337-42b42900-f2bf-11ea-973a-c74a359553a5.png"></img>
# Roadmap
```
* version ( expected release date )
* v0.7.0
|
| while maintaining compatibility with encoding/json, we will add convenient APIs
|
v
* v1.0.0
```
We are accepting requests for features that will be implemented between v0.7.0 and v.1.0.0.
If you have the API you need, please submit your issue [here](https://github.com/goccy/go-json/issues).
For example, I'm thinking of supporting `context.Context` of `json.Marshaler` and decoding using JSON Path.
# Features
- Drop-in replacement of `encoding/json`
- Fast ( See [Benchmark section](https://github.com/goccy/go-json#benchmarks) )
- Flexible customization with options
- Coloring the encoded string
- Can propagate context.Context to `MarshalJSON` or `UnmarshalJSON`
# Installation
```
go get github.com/goccy/go-json
```
# How to use
Replace import statement from `encoding/json` to `github.com/goccy/go-json`
```
-import "encoding/json"
+import "github.com/goccy/go-json"
```
# JSON library comparison
| name | encoder | decoder | compatible with `encoding/json` |
| :----: | :------: | :-----: | :-----------------------------: |
| encoding/json | yes | yes | N/A |
| [json-iterator/go](https://github.com/json-iterator/go) | yes | yes | partial |
| [easyjson](https://github.com/mailru/easyjson) | yes | yes | no |
| [gojay](https://github.com/francoispqt/gojay) | yes | yes | no |
| [segmentio/encoding/json](https://github.com/segmentio/encoding/tree/master/json) | yes | yes | partial |
| [jettison](https://github.com/wI2L/jettison) | yes | no | no |
| [simdjson-go](https://github.com/minio/simdjson-go) | no | yes | no |
| goccy/go-json | yes | yes | yes |
- `json-iterator/go` isn't compatible with `encoding/json` in many ways (e.g. https://github.com/json-iterator/go/issues/229 ), but it hasn't been supported for a long time.
- `segmentio/encoding/json` is well supported for encoders, but some are not supported for decoder APIs such as `Token` ( streaming decode )
## Other libraries
- [jingo](https://github.com/bet365/jingo)
I tried the benchmark but it didn't work.
Also, it seems to panic when it receives an unexpected value because there is no error handling...
- [ffjson](https://github.com/pquerna/ffjson)
Benchmarking gave very slow results.
It seems that it is assumed that the user will use the buffer pool properly.
Also, development seems to have already stopped
# Benchmarks
```
$ cd benchmarks
$ go test -bench .
```
## Encode
<img width="700px" src="https://user-images.githubusercontent.com/209884/107126758-0845cb00-68f5-11eb-8db7-086fcf9bcfaa.png"></img>
<img width="700px" src="https://user-images.githubusercontent.com/209884/107126757-07ad3480-68f5-11eb-87aa-858cc5eacfcb.png"></img>
## Decode
<img width="700" alt="" src="https://user-images.githubusercontent.com/209884/107979944-bd1d6d80-7002-11eb-944b-9d17b6674e3f.png">
<img width="700" alt="" src="https://user-images.githubusercontent.com/209884/107979931-b989e680-7002-11eb-87a0-66fc22d90dd4.png">
<img width="700" alt="" src="https://user-images.githubusercontent.com/209884/107979940-bc84d700-7002-11eb-9647-869bbc25c9d9.png">
# Fuzzing
[go-json-fuzz](https://github.com/goccy/go-json-fuzz) is the repository for fuzzing tests.
If you run the test in this repository and find a bug, please commit to corpus to go-json-fuzz and report the issue to [go-json](https://github.com/goccy/go-json/issues).
# How it works
`go-json` is very fast in both encoding and decoding compared to other libraries.
It's easier to implement by using automatic code generation for performance or by using a dedicated interface, but `go-json` dares to stick to compatibility with `encoding/json` and is the simple interface. Despite this, we are developing with the aim of being the fastest library.
Here, we explain the various speed-up techniques implemented by `go-json`.
## Basic technique
The techniques listed here are the ones used by most of the libraries listed above.
### Buffer reuse
Since the only value required for the result of `json.Marshal(interface{}) ([]byte, error)` is `[]byte`, the only value that must be allocated during encoding is the return value `[]byte` .
Also, as the number of allocations increases, the performance will be affected, so the number of allocations should be kept as low as possible when creating `[]byte`.
Therefore, there is a technique to reduce the number of times a new buffer must be allocated by reusing the buffer used for the previous encoding by using `sync.Pool`.
Finally, you allocate a buffer that is as long as the resulting buffer and copy the contents into it, you only need to allocate the buffer once in theory.
```go
type buffer struct {
data []byte
}
var bufPool = sync.Pool{
New: func() interface{} {
return &buffer{data: make([]byte, 0, 1024)}
},
}
buf := bufPool.Get().(*buffer)
data := encode(buf.data) // reuse buf.data
newBuf := make([]byte, len(data))
copy(newBuf, buf)
buf.data = data
bufPool.Put(buf)
```
### Elimination of reflection
As you know, the reflection operation is very slow.
Therefore, using the fact that the address position where the type information is stored is fixed for each binary ( we call this `typeptr` ),
we can use the address in the type information to call a pre-built optimized process.
For example, you can get the address to the type information from `interface{}` as follows and you can use that information to call a process that does not have reflection.
To process without reflection, pass a pointer (`unsafe.Pointer`) to the value is stored.
```go
type emptyInterface struct {
typ unsafe.Pointer
ptr unsafe.Pointer
}
var typeToEncoder = map[uintptr]func(unsafe.Pointer)([]byte, error){}
func Marshal(v interface{}) ([]byte, error) {
iface := (*emptyInterface)(unsafe.Pointer(&v)
typeptr := uintptr(iface.typ)
if enc, exists := typeToEncoder[typeptr]; exists {
return enc(iface.ptr)
}
...
}
```
※ In reality, `typeToEncoder` can be referenced by multiple goroutines, so exclusive control is required.
## Unique speed-up technique
## Encoder
### Do not escape arguments of `Marshal`
`json.Marshal` and `json.Unmarshal` receive `interface{}` value and they perform type determination dynamically to process.
In normal case, you need to use the `reflect` library to determine the type dynamically, but since `reflect.Type` is defined as `interface`, when you call the method of `reflect.Type`, The reflect's argument is escaped.
Therefore, the arguments for `Marshal` and `Unmarshal` are always escape to the heap.
However, `go-json` can use the feature of `reflect.Type` while avoiding escaping.
`reflect.Type` is defined as `interface`, but in reality `reflect.Type` is implemented only by the structure `rtype` defined in the `reflect` package.
For this reason, to date `reflect.Type` is the same as `*reflect.rtype`.
Therefore, by directly handling `*reflect.rtype`, which is an implementation of `reflect.Type`, it is possible to avoid escaping because it changes from `interface` to using `struct`.
The technique for working with `*reflect.rtype` directly from `go-json` is implemented at [rtype.go](https://github.com/goccy/go-json/blob/master/internal/runtime/rtype.go)
Also, the same technique is cut out as a library ( https://github.com/goccy/go-reflect )
Initially this feature was the default behavior of `go-json`.
But after careful testing, I found that I passed a large value to `json.Marshal()` and if the argument could not be assigned to the stack, it could not be properly escaped to the heap (a bug in the Go compiler).
Therefore, this feature will be provided as an **optional** until this issue is resolved.
To use it, add `NoEscape` like `MarshalNoEscape()`
### Encoding using opcode sequence
I explained that you can use `typeptr` to call a pre-built process from type information.
In other libraries, this dedicated process is processed by making it an function calling like anonymous function, but function calls are inherently slow processes and should be avoided as much as possible.
Therefore, `go-json` adopted the Instruction-based execution processing system, which is also used to implement virtual machines for programming language.
If it is the first type to encode, create the opcode ( instruction ) sequence required for encoding.
From the second time onward, use `typeptr` to get the cached pre-built opcode sequence and encode it based on it. An example of the opcode sequence is shown below.
```go
json.Marshal(struct{
X int `json:"x"`
Y string `json:"y"`
}{X: 1, Y: "hello"})
```
When encoding a structure like the one above, create a sequence of opcodes like this:
```
- opStructFieldHead ( `{` )
- opStructFieldInt ( `"x": 1,` )
- opStructFieldString ( `"y": "hello"` )
- opStructEnd ( `}` )
- opEnd
```
※ When processing each operation, write the letters on the right.
In addition, each opcode is managed by the following structure (
Pseudo code ).
```go
type opType int
const (
opStructFieldHead opType = iota
opStructFieldInt
opStructFieldStirng
opStructEnd
opEnd
)
type opcode struct {
op opType
key []byte
next *opcode
}
```
The process of encoding using the opcode sequence is roughly implemented as follows.
```go
func encode(code *opcode, b []byte, p unsafe.Pointer) ([]byte, error) {
for {
switch code.op {
case opStructFieldHead:
b = append(b, '{')
code = code.next
case opStructFieldInt:
b = append(b, code.key...)
b = appendInt((*int)(unsafe.Pointer(uintptr(p)+code.offset)))
code = code.next
case opStructFieldString:
b = append(b, code.key...)
b = appendString((*string)(unsafe.Pointer(uintptr(p)+code.offset)))
code = code.next
case opStructEnd:
b = append(b, '}')
code = code.next
case opEnd:
goto END
}
}
END:
return b, nil
}
```
In this way, the huge `switch-case` is used to encode by manipulating the linked list opcodes to avoid unnecessary function calls.
### Opcode sequence optimization
One of the advantages of encoding using the opcode sequence is the ease of optimization.
The opcode sequence mentioned above is actually converted into the following optimized operations and used.
```
- opStructFieldHeadInt ( `{"x": 1,` )
- opStructEndString ( `"y": "hello"}` )
- opEnd
```
It has been reduced from 5 opcodes to 3 opcodes !
Reducing the number of opcodees means reducing the number of branches with `switch-case`.
In other words, the closer the number of operations is to 1, the faster the processing can be performed.
In `go-json`, optimization to reduce the number of opcodes itself like the above and it speeds up by preparing opcodes with optimized paths.
### Change recursive call from CALL to JMP
Recursive processing is required during encoding if the type is defined recursively as follows:
```go
type T struct {
X int
U *U
}
type U struct {
T *T
}
b, err := json.Marshal(&T{
X: 1,
U: &U{
T: &T{
X: 2,
},
},
})
fmt.Println(string(b)) // {"X":1,"U":{"T":{"X":2,"U":null}}}
```
In `go-json`, recursive processing is processed by the operation type of ` opStructFieldRecursive`.
In this operation, after acquiring the opcode sequence used for recursive processing, the function is **not** called recursively as it is, but the necessary values are saved by itself and implemented by moving to the next operation.
The technique of implementing recursive processing with the `JMP` operation while avoiding the `CALL` operation is a famous technique for implementing a high-speed virtual machine.
For more details, please refer to [the article](https://engineering.mercari.com/blog/entry/1599563768-081104c850) ( but Japanese only ).
### Dispatch by typeptr from map to slice
When retrieving the data cached from the type information by `typeptr`, we usually use map.
Map requires exclusive control, so use `sync.Map` for a naive implementation.
However, this is slow, so it's a good idea to use the `atomic` package for exclusive control as implemented by `segmentio/encoding/json` ( https://github.com/segmentio/encoding/blob/master/json/codec.go#L41-L55 ).
This implementation slows down the set instead of speeding up the get, but it works well because of the nature of the library, it encodes much more for the same type.
However, as a result of profiling, I noticed that `runtime.mapaccess2` accounts for a significant percentage of the execution time. So I thought if I could change the lookup from map to slice.
There is an API named `typelinks` defined in the `runtime` package that the `reflect` package uses internally.
This allows you to get all the type information defined in the binary at runtime.
The fact that all type information can be acquired means that by constructing slices in advance with the acquired total number of type information, it is possible to look up with the value of `typeptr` without worrying about out-of-range access.
However, if there is too much type information, it will use a lot of memory, so by default we will only use this optimization if the slice size fits within **2Mib** .
If this approach is not available, it will fall back to the `atomic` based process described above.
If you want to know more, please refer to the implementation [here](https://github.com/goccy/go-json/blob/master/internal/runtime/type.go#L36-L100)
## Decoder
### Dispatch by typeptr from map to slice
Like the encoder, the decoder also uses typeptr to call the dedicated process.
### Faster termination character inspection using NUL character
In order to decode, you have to traverse the input buffer character by position.
At that time, if you check whether the buffer has reached the end, it will be very slow.
`buf` : `[]byte` type variable. holds the string passed to the decoder
`cursor` : `int64` type variable. holds the current read position
```go
buflen := len(buf)
for ; cursor < buflen; cursor++ { // compare cursor and buflen at all times, it is so slow.
switch buf[cursor] {
case ' ', '\n', '\r', '\t':
}
}
```
Therefore, by adding the `NUL` (`\000`) character to the end of the read buffer as shown below, it is possible to check the termination character at the same time as other characters.
```go
for {
switch buf[cursor] {
case ' ', '\n', '\r', '\t':
case '\000':
return nil
}
cursor++
}
```
### Use Boundary Check Elimination
Due to the `NUL` character optimization, the Go compiler does a boundary check every time, even though `buf[cursor]` does not cause out-of-range access.
Therefore, `go-json` eliminates boundary check by fetching characters for hotspot by pointer operation. For example, the following code.
```go
func char(ptr unsafe.Pointer, offset int64) byte {
return *(*byte)(unsafe.Pointer(uintptr(ptr) + uintptr(offset)))
}
p := (*sliceHeader)(&unsafe.Pointer(buf)).data
for {
switch char(p, cursor) {
case ' ', '\n', '\r', '\t':
case '\000':
return nil
}
cursor++
}
```
### Checking the existence of fields of struct using Bitmaps
I found by the profiling result, in the struct decode, lookup process for field was taking a long time.
For example, consider decoding a string like `{"a":1,"b":2,"c":3}` into the following structure:
```go
type T struct {
A int `json:"a"`
B int `json:"b"`
C int `json:"c"`
}
```
At this time, it was found that it takes a lot of time to acquire the decoding process corresponding to the field from the field name as shown below during the decoding process.
```go
fieldName := decodeKey(buf, cursor) // "a" or "b" or "c"
decoder, exists := fieldToDecoderMap[fieldName] // so slow
if exists {
decoder(buf, cursor)
} else {
skipValue(buf, cursor)
}
```
To improve this process, `json-iterator/go` is optimized so that it can be branched by switch-case when the number of fields in the structure is 10 or less (switch-case is faster than map). However, there is a risk of hash collision because the value hashed by the FNV algorithm is used for conditional branching. Also, `gojay` processes this part at high speed by letting the library user yourself write `switch-case`.
`go-json` considers and implements a new approach that is different from these. I call this **bitmap field optimization**.
The range of values per character can be represented by `[256]byte`. Also, if the number of fields in the structure is 8 or less, `int8` type can represent the state of each field.
In other words, it has the following structure.
- Base ( 8bit ): `00000000`
- Key "a": `00000001` ( assign key "a" to the first bit )
- Key "b": `00000010` ( assign key "b" to the second bit )
- Key "c": `00000100` ( assign key "c" to the third bit )
Bitmap structure is the following
```
| key index(0) |
------------------------
0 | 00000000 |
1 | 00000000 |
~~ | |
97 (a) | 00000001 |
98 (b) | 00000010 |
99 (c) | 00000100 |
~~ | |
255 | 00000000 |
```
You can think of this as a Bitmap with a height of `256` and a width of the maximum string length in the field name.
In other words, it can be represented by the following type .
```go
[maxFieldKeyLength][256]int8
```
When decoding a field character, check whether the corresponding character exists by referring to the pre-built bitmap like the following.
```go
var curBit int8 = math.MaxInt8 // 11111111
c := char(buf, cursor)
bit := bitmap[keyIdx][c]
curBit &= bit
if curBit == 0 {
// not found field
}
```
If `curBit` is not `0` until the end of the field string, then the string is
You may have hit one of the fields.
But the possibility is that if the decoded string is shorter than the field string, you will get a false hit.
- input: `{"a":1}`
```go
type T struct {
X int `json:"abc"`
}
```
※ Since `a` is shorter than `abc`, it can decode to the end of the field character without `curBit` being 0.
Rest assured. In this case, it doesn't matter because you can tell if you hit by comparing the string length of `a` with the string length of `abc`.
Finally, calculate the position of the bit where `1` is set and get the corresponding value, and you're done.
Using this technique, field lookups are possible with only bitwise operations and access to slices.
`go-json` uses a similar technique for fields with 9 or more and 16 or less fields. At this time, Bitmap is constructed as `[maxKeyLen][256]int16` type.
Currently, this optimization is not performed when the maximum length of the field name is long (specifically, 64 bytes or more) in addition to the limitation of the number of fields from the viewpoint of saving memory usage.
### Others
I have done a lot of other optimizations. I will find time to write about them. If you have any questions about what's written here or other optimizations, please visit the `#go-json` channel on `gophers.slack.com` .
## Reference
Regarding the story of go-json, there are the following articles in Japanese only.
- https://speakerdeck.com/goccy/zui-su-falsejsonraiburariwoqiu-mete
- https://engineering.mercari.com/blog/entry/1599563768-081104c850/
# Looking for Sponsors
I'm looking for sponsors this library. This library is being developed as a personal project in my spare time. If you want a quick response or problem resolution when using this library in your project, please register as a [sponsor](https://github.com/sponsors/goccy). I will cooperate as much as possible. Of course, this library is developed as an MIT license, so you can use it freely for free.
# License
MIT

68
vendor/github.com/goccy/go-json/color.go generated vendored Normal file
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@ -0,0 +1,68 @@
package json
import (
"fmt"
"github.com/goccy/go-json/internal/encoder"
)
type (
ColorFormat = encoder.ColorFormat
ColorScheme = encoder.ColorScheme
)
const escape = "\x1b"
type colorAttr int
//nolint:deadcode,varcheck
const (
fgBlackColor colorAttr = iota + 30
fgRedColor
fgGreenColor
fgYellowColor
fgBlueColor
fgMagentaColor
fgCyanColor
fgWhiteColor
)
//nolint:deadcode,varcheck
const (
fgHiBlackColor colorAttr = iota + 90
fgHiRedColor
fgHiGreenColor
fgHiYellowColor
fgHiBlueColor
fgHiMagentaColor
fgHiCyanColor
fgHiWhiteColor
)
func createColorFormat(attr colorAttr) ColorFormat {
return ColorFormat{
Header: wrapColor(attr),
Footer: resetColor(),
}
}
func wrapColor(attr colorAttr) string {
return fmt.Sprintf("%s[%dm", escape, attr)
}
func resetColor() string {
return wrapColor(colorAttr(0))
}
var (
DefaultColorScheme = &ColorScheme{
Int: createColorFormat(fgHiMagentaColor),
Uint: createColorFormat(fgHiMagentaColor),
Float: createColorFormat(fgHiMagentaColor),
Bool: createColorFormat(fgHiYellowColor),
String: createColorFormat(fgHiGreenColor),
Binary: createColorFormat(fgHiRedColor),
ObjectKey: createColorFormat(fgHiCyanColor),
Null: createColorFormat(fgBlueColor),
}
)

232
vendor/github.com/goccy/go-json/decode.go generated vendored Normal file
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@ -0,0 +1,232 @@
package json
import (
"context"
"fmt"
"io"
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/decoder"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type Decoder struct {
s *decoder.Stream
}
const (
nul = '\000'
)
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func unmarshal(data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
src := make([]byte, len(data)+1) // append nul byte to the end
copy(src, data)
header := (*emptyInterface)(unsafe.Pointer(&v))
if err := validateType(header.typ, uintptr(header.ptr)); err != nil {
return err
}
dec, err := decoder.CompileToGetDecoder(header.typ)
if err != nil {
return err
}
ctx := decoder.TakeRuntimeContext()
ctx.Buf = src
ctx.Option.Flags = 0
for _, optFunc := range optFuncs {
optFunc(ctx.Option)
}
cursor, err := dec.Decode(ctx, 0, 0, header.ptr)
if err != nil {
decoder.ReleaseRuntimeContext(ctx)
return err
}
decoder.ReleaseRuntimeContext(ctx)
return validateEndBuf(src, cursor)
}
func unmarshalContext(ctx context.Context, data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
src := make([]byte, len(data)+1) // append nul byte to the end
copy(src, data)
header := (*emptyInterface)(unsafe.Pointer(&v))
if err := validateType(header.typ, uintptr(header.ptr)); err != nil {
return err
}
dec, err := decoder.CompileToGetDecoder(header.typ)
if err != nil {
return err
}
rctx := decoder.TakeRuntimeContext()
rctx.Buf = src
rctx.Option.Flags = 0
rctx.Option.Flags |= decoder.ContextOption
rctx.Option.Context = ctx
for _, optFunc := range optFuncs {
optFunc(rctx.Option)
}
cursor, err := dec.Decode(rctx, 0, 0, header.ptr)
if err != nil {
decoder.ReleaseRuntimeContext(rctx)
return err
}
decoder.ReleaseRuntimeContext(rctx)
return validateEndBuf(src, cursor)
}
func unmarshalNoEscape(data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
src := make([]byte, len(data)+1) // append nul byte to the end
copy(src, data)
header := (*emptyInterface)(unsafe.Pointer(&v))
if err := validateType(header.typ, uintptr(header.ptr)); err != nil {
return err
}
dec, err := decoder.CompileToGetDecoder(header.typ)
if err != nil {
return err
}
ctx := decoder.TakeRuntimeContext()
ctx.Buf = src
ctx.Option.Flags = 0
for _, optFunc := range optFuncs {
optFunc(ctx.Option)
}
cursor, err := dec.Decode(ctx, 0, 0, noescape(header.ptr))
if err != nil {
decoder.ReleaseRuntimeContext(ctx)
return err
}
decoder.ReleaseRuntimeContext(ctx)
return validateEndBuf(src, cursor)
}
func validateEndBuf(src []byte, cursor int64) error {
for {
switch src[cursor] {
case ' ', '\t', '\n', '\r':
cursor++
continue
case nul:
return nil
}
return errors.ErrSyntax(
fmt.Sprintf("invalid character '%c' after top-level value", src[cursor]),
cursor+1,
)
}
}
//nolint:staticcheck
//go:nosplit
func noescape(p unsafe.Pointer) unsafe.Pointer {
x := uintptr(p)
return unsafe.Pointer(x ^ 0)
}
func validateType(typ *runtime.Type, p uintptr) error {
if typ == nil || typ.Kind() != reflect.Ptr || p == 0 {
return &InvalidUnmarshalError{Type: runtime.RType2Type(typ)}
}
return nil
}
// NewDecoder returns a new decoder that reads from r.
//
// The decoder introduces its own buffering and may
// read data from r beyond the JSON values requested.
func NewDecoder(r io.Reader) *Decoder {
s := decoder.NewStream(r)
return &Decoder{
s: s,
}
}
// Buffered returns a reader of the data remaining in the Decoder's
// buffer. The reader is valid until the next call to Decode.
func (d *Decoder) Buffered() io.Reader {
return d.s.Buffered()
}
// Decode reads the next JSON-encoded value from its
// input and stores it in the value pointed to by v.
//
// See the documentation for Unmarshal for details about
// the conversion of JSON into a Go value.
func (d *Decoder) Decode(v interface{}) error {
return d.DecodeWithOption(v)
}
// DecodeContext reads the next JSON-encoded value from its
// input and stores it in the value pointed to by v with context.Context.
func (d *Decoder) DecodeContext(ctx context.Context, v interface{}) error {
d.s.Option.Flags |= decoder.ContextOption
d.s.Option.Context = ctx
return d.DecodeWithOption(v)
}
func (d *Decoder) DecodeWithOption(v interface{}, optFuncs ...DecodeOptionFunc) error {
header := (*emptyInterface)(unsafe.Pointer(&v))
typ := header.typ
ptr := uintptr(header.ptr)
typeptr := uintptr(unsafe.Pointer(typ))
// noescape trick for header.typ ( reflect.*rtype )
copiedType := *(**runtime.Type)(unsafe.Pointer(&typeptr))
if err := validateType(copiedType, ptr); err != nil {
return err
}
dec, err := decoder.CompileToGetDecoder(typ)
if err != nil {
return err
}
if err := d.s.PrepareForDecode(); err != nil {
return err
}
s := d.s
for _, optFunc := range optFuncs {
optFunc(s.Option)
}
if err := dec.DecodeStream(s, 0, header.ptr); err != nil {
return err
}
s.Reset()
return nil
}
func (d *Decoder) More() bool {
return d.s.More()
}
func (d *Decoder) Token() (Token, error) {
return d.s.Token()
}
// DisallowUnknownFields causes the Decoder to return an error when the destination
// is a struct and the input contains object keys which do not match any
// non-ignored, exported fields in the destination.
func (d *Decoder) DisallowUnknownFields() {
d.s.DisallowUnknownFields = true
}
func (d *Decoder) InputOffset() int64 {
return d.s.TotalOffset()
}
// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
// Number instead of as a float64.
func (d *Decoder) UseNumber() {
d.s.UseNumber = true
}

13
vendor/github.com/goccy/go-json/docker-compose.yml generated vendored Normal file
View file

@ -0,0 +1,13 @@
version: '2'
services:
go-json:
image: golang:1.16
volumes:
- '.:/go/src/go-json'
deploy:
resources:
limits:
memory: 620M
working_dir: /go/src/go-json
command: |
sh -c "go test -c . && ls go-json.test"

323
vendor/github.com/goccy/go-json/encode.go generated vendored Normal file
View file

@ -0,0 +1,323 @@
package json
import (
"context"
"io"
"unsafe"
"github.com/goccy/go-json/internal/encoder"
"github.com/goccy/go-json/internal/encoder/vm"
"github.com/goccy/go-json/internal/encoder/vm_color"
"github.com/goccy/go-json/internal/encoder/vm_color_indent"
"github.com/goccy/go-json/internal/encoder/vm_indent"
)
// An Encoder writes JSON values to an output stream.
type Encoder struct {
w io.Writer
enabledIndent bool
enabledHTMLEscape bool
prefix string
indentStr string
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{w: w, enabledHTMLEscape: true}
}
// Encode writes the JSON encoding of v to the stream, followed by a newline character.
//
// See the documentation for Marshal for details about the conversion of Go values to JSON.
func (e *Encoder) Encode(v interface{}) error {
return e.EncodeWithOption(v)
}
// EncodeWithOption call Encode with EncodeOption.
func (e *Encoder) EncodeWithOption(v interface{}, optFuncs ...EncodeOptionFunc) error {
ctx := encoder.TakeRuntimeContext()
ctx.Option.Flag = 0
err := e.encodeWithOption(ctx, v, optFuncs...)
encoder.ReleaseRuntimeContext(ctx)
return err
}
// EncodeContext call Encode with context.Context and EncodeOption.
func (e *Encoder) EncodeContext(ctx context.Context, v interface{}, optFuncs ...EncodeOptionFunc) error {
rctx := encoder.TakeRuntimeContext()
rctx.Option.Flag = 0
rctx.Option.Flag |= encoder.ContextOption
rctx.Option.Context = ctx
err := e.encodeWithOption(rctx, v, optFuncs...)
encoder.ReleaseRuntimeContext(rctx)
return err
}
func (e *Encoder) encodeWithOption(ctx *encoder.RuntimeContext, v interface{}, optFuncs ...EncodeOptionFunc) error {
if e.enabledHTMLEscape {
ctx.Option.Flag |= encoder.HTMLEscapeOption
}
for _, optFunc := range optFuncs {
optFunc(ctx.Option)
}
var (
buf []byte
err error
)
if e.enabledIndent {
buf, err = encodeIndent(ctx, v, e.prefix, e.indentStr)
} else {
buf, err = encode(ctx, v)
}
if err != nil {
return err
}
if e.enabledIndent {
buf = buf[:len(buf)-2]
} else {
buf = buf[:len(buf)-1]
}
buf = append(buf, '\n')
if _, err := e.w.Write(buf); err != nil {
return err
}
return nil
}
// SetEscapeHTML specifies whether problematic HTML characters should be escaped inside JSON quoted strings.
// The default behavior is to escape &, <, and > to \u0026, \u003c, and \u003e to avoid certain safety problems that can arise when embedding JSON in HTML.
//
// In non-HTML settings where the escaping interferes with the readability of the output, SetEscapeHTML(false) disables this behavior.
func (e *Encoder) SetEscapeHTML(on bool) {
e.enabledHTMLEscape = on
}
// SetIndent instructs the encoder to format each subsequent encoded value as if indented by the package-level function Indent(dst, src, prefix, indent).
// Calling SetIndent("", "") disables indentation.
func (e *Encoder) SetIndent(prefix, indent string) {
if prefix == "" && indent == "" {
e.enabledIndent = false
return
}
e.prefix = prefix
e.indentStr = indent
e.enabledIndent = true
}
func marshalContext(ctx context.Context, v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
rctx := encoder.TakeRuntimeContext()
rctx.Option.Flag = 0
rctx.Option.Flag = encoder.HTMLEscapeOption | encoder.ContextOption
rctx.Option.Context = ctx
for _, optFunc := range optFuncs {
optFunc(rctx.Option)
}
buf, err := encode(rctx, v)
if err != nil {
encoder.ReleaseRuntimeContext(rctx)
return nil, err
}
// this line exists to escape call of `runtime.makeslicecopy` .
// if use `make([]byte, len(buf)-1)` and `copy(copied, buf)`,
// dst buffer size and src buffer size are differrent.
// in this case, compiler uses `runtime.makeslicecopy`, but it is slow.
buf = buf[:len(buf)-1]
copied := make([]byte, len(buf))
copy(copied, buf)
encoder.ReleaseRuntimeContext(rctx)
return copied, nil
}
func marshal(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
ctx := encoder.TakeRuntimeContext()
ctx.Option.Flag = 0
ctx.Option.Flag |= encoder.HTMLEscapeOption
for _, optFunc := range optFuncs {
optFunc(ctx.Option)
}
buf, err := encode(ctx, v)
if err != nil {
encoder.ReleaseRuntimeContext(ctx)
return nil, err
}
// this line exists to escape call of `runtime.makeslicecopy` .
// if use `make([]byte, len(buf)-1)` and `copy(copied, buf)`,
// dst buffer size and src buffer size are differrent.
// in this case, compiler uses `runtime.makeslicecopy`, but it is slow.
buf = buf[:len(buf)-1]
copied := make([]byte, len(buf))
copy(copied, buf)
encoder.ReleaseRuntimeContext(ctx)
return copied, nil
}
func marshalNoEscape(v interface{}) ([]byte, error) {
ctx := encoder.TakeRuntimeContext()
ctx.Option.Flag = 0
ctx.Option.Flag |= encoder.HTMLEscapeOption
buf, err := encodeNoEscape(ctx, v)
if err != nil {
encoder.ReleaseRuntimeContext(ctx)
return nil, err
}
// this line exists to escape call of `runtime.makeslicecopy` .
// if use `make([]byte, len(buf)-1)` and `copy(copied, buf)`,
// dst buffer size and src buffer size are differrent.
// in this case, compiler uses `runtime.makeslicecopy`, but it is slow.
buf = buf[:len(buf)-1]
copied := make([]byte, len(buf))
copy(copied, buf)
encoder.ReleaseRuntimeContext(ctx)
return copied, nil
}
func marshalIndent(v interface{}, prefix, indent string, optFuncs ...EncodeOptionFunc) ([]byte, error) {
ctx := encoder.TakeRuntimeContext()
ctx.Option.Flag = 0
ctx.Option.Flag |= (encoder.HTMLEscapeOption | encoder.IndentOption)
for _, optFunc := range optFuncs {
optFunc(ctx.Option)
}
buf, err := encodeIndent(ctx, v, prefix, indent)
if err != nil {
encoder.ReleaseRuntimeContext(ctx)
return nil, err
}
buf = buf[:len(buf)-2]
copied := make([]byte, len(buf))
copy(copied, buf)
encoder.ReleaseRuntimeContext(ctx)
return copied, nil
}
func encode(ctx *encoder.RuntimeContext, v interface{}) ([]byte, error) {
b := ctx.Buf[:0]
if v == nil {
b = encoder.AppendNull(ctx, b)
b = encoder.AppendComma(ctx, b)
return b, nil
}
header := (*emptyInterface)(unsafe.Pointer(&v))
typ := header.typ
typeptr := uintptr(unsafe.Pointer(typ))
codeSet, err := encoder.CompileToGetCodeSet(typeptr)
if err != nil {
return nil, err
}
p := uintptr(header.ptr)
ctx.Init(p, codeSet.CodeLength)
ctx.KeepRefs = append(ctx.KeepRefs, header.ptr)
buf, err := encodeRunCode(ctx, b, codeSet)
if err != nil {
return nil, err
}
ctx.Buf = buf
return buf, nil
}
func encodeNoEscape(ctx *encoder.RuntimeContext, v interface{}) ([]byte, error) {
b := ctx.Buf[:0]
if v == nil {
b = encoder.AppendNull(ctx, b)
b = encoder.AppendComma(ctx, b)
return b, nil
}
header := (*emptyInterface)(unsafe.Pointer(&v))
typ := header.typ
typeptr := uintptr(unsafe.Pointer(typ))
codeSet, err := encoder.CompileToGetCodeSet(typeptr)
if err != nil {
return nil, err
}
p := uintptr(header.ptr)
ctx.Init(p, codeSet.CodeLength)
buf, err := encodeRunCode(ctx, b, codeSet)
if err != nil {
return nil, err
}
ctx.Buf = buf
return buf, nil
}
func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent string) ([]byte, error) {
b := ctx.Buf[:0]
if v == nil {
b = encoder.AppendNull(ctx, b)
b = encoder.AppendCommaIndent(ctx, b)
return b, nil
}
header := (*emptyInterface)(unsafe.Pointer(&v))
typ := header.typ
typeptr := uintptr(unsafe.Pointer(typ))
codeSet, err := encoder.CompileToGetCodeSet(typeptr)
if err != nil {
return nil, err
}
p := uintptr(header.ptr)
ctx.Init(p, codeSet.CodeLength)
buf, err := encodeRunIndentCode(ctx, b, codeSet, prefix, indent)
ctx.KeepRefs = append(ctx.KeepRefs, header.ptr)
if err != nil {
return nil, err
}
ctx.Buf = buf
return buf, nil
}
func encodeRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
if (ctx.Option.Flag & encoder.DebugOption) != 0 {
if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
return vm_color.DebugRun(ctx, b, codeSet)
}
return vm.DebugRun(ctx, b, codeSet)
}
if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
return vm_color.Run(ctx, b, codeSet)
}
return vm.Run(ctx, b, codeSet)
}
func encodeRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, prefix, indent string) ([]byte, error) {
ctx.Prefix = []byte(prefix)
ctx.IndentStr = []byte(indent)
if (ctx.Option.Flag & encoder.DebugOption) != 0 {
if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
return vm_color_indent.DebugRun(ctx, b, codeSet)
}
return vm_indent.DebugRun(ctx, b, codeSet)
}
if (ctx.Option.Flag & encoder.ColorizeOption) != 0 {
return vm_color_indent.Run(ctx, b, codeSet)
}
return vm_indent.Run(ctx, b, codeSet)
}

39
vendor/github.com/goccy/go-json/error.go generated vendored Normal file
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@ -0,0 +1,39 @@
package json
import (
"github.com/goccy/go-json/internal/errors"
)
// Before Go 1.2, an InvalidUTF8Error was returned by Marshal when
// attempting to encode a string value with invalid UTF-8 sequences.
// As of Go 1.2, Marshal instead coerces the string to valid UTF-8 by
// replacing invalid bytes with the Unicode replacement rune U+FFFD.
//
// Deprecated: No longer used; kept for compatibility.
type InvalidUTF8Error = errors.InvalidUTF8Error
// An InvalidUnmarshalError describes an invalid argument passed to Unmarshal.
// (The argument to Unmarshal must be a non-nil pointer.)
type InvalidUnmarshalError = errors.InvalidUnmarshalError
// A MarshalerError represents an error from calling a MarshalJSON or MarshalText method.
type MarshalerError = errors.MarshalerError
// A SyntaxError is a description of a JSON syntax error.
type SyntaxError = errors.SyntaxError
// An UnmarshalFieldError describes a JSON object key that
// led to an unexported (and therefore unwritable) struct field.
//
// Deprecated: No longer used; kept for compatibility.
type UnmarshalFieldError = errors.UnmarshalFieldError
// An UnmarshalTypeError describes a JSON value that was
// not appropriate for a value of a specific Go type.
type UnmarshalTypeError = errors.UnmarshalTypeError
// An UnsupportedTypeError is returned by Marshal when attempting
// to encode an unsupported value type.
type UnsupportedTypeError = errors.UnsupportedTypeError
type UnsupportedValueError = errors.UnsupportedValueError

3
vendor/github.com/goccy/go-json/go.mod generated vendored Normal file
View file

@ -0,0 +1,3 @@
module github.com/goccy/go-json
go 1.12

0
vendor/github.com/goccy/go-json/go.sum generated vendored Normal file
View file

View file

@ -0,0 +1,37 @@
package decoder
import (
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
type anonymousFieldDecoder struct {
structType *runtime.Type
offset uintptr
dec Decoder
}
func newAnonymousFieldDecoder(structType *runtime.Type, offset uintptr, dec Decoder) *anonymousFieldDecoder {
return &anonymousFieldDecoder{
structType: structType,
offset: offset,
dec: dec,
}
}
func (d *anonymousFieldDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
if *(*unsafe.Pointer)(p) == nil {
*(*unsafe.Pointer)(p) = unsafe_New(d.structType)
}
p = *(*unsafe.Pointer)(p)
return d.dec.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+d.offset))
}
func (d *anonymousFieldDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
if *(*unsafe.Pointer)(p) == nil {
*(*unsafe.Pointer)(p) = unsafe_New(d.structType)
}
p = *(*unsafe.Pointer)(p)
return d.dec.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+d.offset))
}

View file

@ -0,0 +1,169 @@
package decoder
import (
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type arrayDecoder struct {
elemType *runtime.Type
size uintptr
valueDecoder Decoder
alen int
structName string
fieldName string
zeroValue unsafe.Pointer
}
func newArrayDecoder(dec Decoder, elemType *runtime.Type, alen int, structName, fieldName string) *arrayDecoder {
zeroValue := *(*unsafe.Pointer)(unsafe_New(elemType))
return &arrayDecoder{
valueDecoder: dec,
elemType: elemType,
size: elemType.Size(),
alen: alen,
structName: structName,
fieldName: fieldName,
zeroValue: zeroValue,
}
}
func (d *arrayDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
case 'n':
if err := nullBytes(s); err != nil {
return err
}
return nil
case '[':
idx := 0
s.cursor++
if s.skipWhiteSpace() == ']' {
for idx < d.alen {
*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
idx++
}
s.cursor++
return nil
}
for {
if idx < d.alen {
if err := d.valueDecoder.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size)); err != nil {
return err
}
} else {
if err := s.skipValue(depth); err != nil {
return err
}
}
idx++
switch s.skipWhiteSpace() {
case ']':
for idx < d.alen {
*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
idx++
}
s.cursor++
return nil
case ',':
s.cursor++
continue
case nul:
if s.read() {
s.cursor++
continue
}
goto ERROR
default:
goto ERROR
}
}
case nul:
if s.read() {
continue
}
goto ERROR
default:
goto ERROR
}
s.cursor++
}
ERROR:
return errors.ErrUnexpectedEndOfJSON("array", s.totalOffset())
}
func (d *arrayDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
continue
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
return cursor, nil
case '[':
idx := 0
cursor++
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == ']' {
for idx < d.alen {
*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
idx++
}
cursor++
return cursor, nil
}
for {
if idx < d.alen {
c, err := d.valueDecoder.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size))
if err != nil {
return 0, err
}
cursor = c
} else {
c, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
cursor = c
}
idx++
cursor = skipWhiteSpace(buf, cursor)
switch buf[cursor] {
case ']':
for idx < d.alen {
*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
idx++
}
cursor++
return cursor, nil
case ',':
cursor++
continue
default:
return 0, errors.ErrInvalidCharacter(buf[cursor], "array", cursor)
}
}
default:
return 0, errors.ErrUnexpectedEndOfJSON("array", cursor)
}
}
}

View file

@ -0,0 +1,78 @@
package decoder
import (
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type boolDecoder struct {
structName string
fieldName string
}
func newBoolDecoder(structName, fieldName string) *boolDecoder {
return &boolDecoder{structName: structName, fieldName: fieldName}
}
func (d *boolDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
c := s.skipWhiteSpace()
for {
switch c {
case 't':
if err := trueBytes(s); err != nil {
return err
}
**(**bool)(unsafe.Pointer(&p)) = true
return nil
case 'f':
if err := falseBytes(s); err != nil {
return err
}
**(**bool)(unsafe.Pointer(&p)) = false
return nil
case 'n':
if err := nullBytes(s); err != nil {
return err
}
return nil
case nul:
if s.read() {
c = s.char()
continue
}
goto ERROR
}
break
}
ERROR:
return errors.ErrUnexpectedEndOfJSON("bool", s.totalOffset())
}
func (d *boolDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
switch buf[cursor] {
case 't':
if err := validateTrue(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**bool)(unsafe.Pointer(&p)) = true
return cursor, nil
case 'f':
if err := validateFalse(buf, cursor); err != nil {
return 0, err
}
cursor += 5
**(**bool)(unsafe.Pointer(&p)) = false
return cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
return cursor, nil
}
return 0, errors.ErrUnexpectedEndOfJSON("bool", cursor)
}

View file

@ -0,0 +1,177 @@
package decoder
import (
"encoding/base64"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type bytesDecoder struct {
typ *runtime.Type
sliceDecoder Decoder
structName string
fieldName string
}
func byteUnmarshalerSliceDecoder(typ *runtime.Type, structName string, fieldName string) Decoder {
var unmarshalDecoder Decoder
switch {
case runtime.PtrTo(typ).Implements(unmarshalJSONType):
unmarshalDecoder = newUnmarshalJSONDecoder(runtime.PtrTo(typ), structName, fieldName)
case runtime.PtrTo(typ).Implements(unmarshalTextType):
unmarshalDecoder = newUnmarshalTextDecoder(runtime.PtrTo(typ), structName, fieldName)
}
if unmarshalDecoder == nil {
return nil
}
return newSliceDecoder(unmarshalDecoder, typ, 1, structName, fieldName)
}
func newBytesDecoder(typ *runtime.Type, structName string, fieldName string) *bytesDecoder {
return &bytesDecoder{
typ: typ,
sliceDecoder: byteUnmarshalerSliceDecoder(typ, structName, fieldName),
structName: structName,
fieldName: fieldName,
}
}
func (d *bytesDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamBinary(s, depth, p)
if err != nil {
return err
}
if bytes == nil {
s.reset()
return nil
}
decodedLen := base64.StdEncoding.DecodedLen(len(bytes))
buf := make([]byte, decodedLen)
n, err := base64.StdEncoding.Decode(buf, bytes)
if err != nil {
return err
}
*(*[]byte)(p) = buf[:n]
s.reset()
return nil
}
func (d *bytesDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.decodeBinary(ctx, cursor, depth, p)
if err != nil {
return 0, err
}
if bytes == nil {
return c, nil
}
cursor = c
decodedLen := base64.StdEncoding.DecodedLen(len(bytes))
b := make([]byte, decodedLen)
n, err := base64.StdEncoding.Decode(b, bytes)
if err != nil {
return 0, err
}
*(*[]byte)(p) = b[:n]
return cursor, nil
}
func binaryBytes(s *Stream) ([]byte, error) {
s.cursor++
start := s.cursor
for {
switch s.char() {
case '"':
literal := s.buf[start:s.cursor]
s.cursor++
return literal, nil
case nul:
if s.read() {
continue
}
goto ERROR
}
s.cursor++
}
ERROR:
return nil, errors.ErrUnexpectedEndOfJSON("[]byte", s.totalOffset())
}
func (d *bytesDecoder) decodeStreamBinary(s *Stream, depth int64, p unsafe.Pointer) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '"':
return binaryBytes(s)
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case '[':
if d.sliceDecoder == nil {
return nil, &errors.UnmarshalTypeError{
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
}
if err := d.sliceDecoder.DecodeStream(s, depth, p); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
}
break
}
return nil, errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
func (d *bytesDecoder) decodeBinary(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) ([]byte, int64, error) {
buf := ctx.Buf
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
case '"':
cursor++
start := cursor
for {
switch buf[cursor] {
case '"':
literal := buf[start:cursor]
cursor++
return literal, cursor, nil
case nul:
return nil, 0, errors.ErrUnexpectedEndOfJSON("[]byte", cursor)
}
cursor++
}
case '[':
if d.sliceDecoder == nil {
return nil, 0, &errors.UnmarshalTypeError{
Type: runtime.RType2Type(d.typ),
Offset: cursor,
}
}
c, err := d.sliceDecoder.Decode(ctx, cursor, depth, p)
if err != nil {
return nil, 0, err
}
return nil, c, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
default:
return nil, 0, errors.ErrNotAtBeginningOfValue(cursor)
}
}
}

View file

@ -0,0 +1,510 @@
package decoder
import (
"encoding/json"
"fmt"
"reflect"
"strings"
"sync/atomic"
"unicode"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
var (
jsonNumberType = reflect.TypeOf(json.Number(""))
typeAddr *runtime.TypeAddr
cachedDecoderMap unsafe.Pointer // map[uintptr]decoder
cachedDecoder []Decoder
)
func init() {
typeAddr = runtime.AnalyzeTypeAddr()
if typeAddr == nil {
typeAddr = &runtime.TypeAddr{}
}
cachedDecoder = make([]Decoder, typeAddr.AddrRange>>typeAddr.AddrShift)
}
func loadDecoderMap() map[uintptr]Decoder {
p := atomic.LoadPointer(&cachedDecoderMap)
return *(*map[uintptr]Decoder)(unsafe.Pointer(&p))
}
func storeDecoder(typ uintptr, dec Decoder, m map[uintptr]Decoder) {
newDecoderMap := make(map[uintptr]Decoder, len(m)+1)
newDecoderMap[typ] = dec
for k, v := range m {
newDecoderMap[k] = v
}
atomic.StorePointer(&cachedDecoderMap, *(*unsafe.Pointer)(unsafe.Pointer(&newDecoderMap)))
}
func compileToGetDecoderSlowPath(typeptr uintptr, typ *runtime.Type) (Decoder, error) {
decoderMap := loadDecoderMap()
if dec, exists := decoderMap[typeptr]; exists {
return dec, nil
}
dec, err := compileHead(typ, map[uintptr]Decoder{})
if err != nil {
return nil, err
}
storeDecoder(typeptr, dec, decoderMap)
return dec, nil
}
func compileHead(typ *runtime.Type, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
switch {
case implementsUnmarshalJSONType(runtime.PtrTo(typ)):
return newUnmarshalJSONDecoder(runtime.PtrTo(typ), "", ""), nil
case runtime.PtrTo(typ).Implements(unmarshalTextType):
return newUnmarshalTextDecoder(runtime.PtrTo(typ), "", ""), nil
}
return compile(typ.Elem(), "", "", structTypeToDecoder)
}
func compile(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
switch {
case implementsUnmarshalJSONType(runtime.PtrTo(typ)):
return newUnmarshalJSONDecoder(runtime.PtrTo(typ), structName, fieldName), nil
case runtime.PtrTo(typ).Implements(unmarshalTextType):
return newUnmarshalTextDecoder(runtime.PtrTo(typ), structName, fieldName), nil
}
switch typ.Kind() {
case reflect.Ptr:
return compilePtr(typ, structName, fieldName, structTypeToDecoder)
case reflect.Struct:
return compileStruct(typ, structName, fieldName, structTypeToDecoder)
case reflect.Slice:
elem := typ.Elem()
if elem.Kind() == reflect.Uint8 {
return compileBytes(elem, structName, fieldName)
}
return compileSlice(typ, structName, fieldName, structTypeToDecoder)
case reflect.Array:
return compileArray(typ, structName, fieldName, structTypeToDecoder)
case reflect.Map:
return compileMap(typ, structName, fieldName, structTypeToDecoder)
case reflect.Interface:
return compileInterface(typ, structName, fieldName)
case reflect.Uintptr:
return compileUint(typ, structName, fieldName)
case reflect.Int:
return compileInt(typ, structName, fieldName)
case reflect.Int8:
return compileInt8(typ, structName, fieldName)
case reflect.Int16:
return compileInt16(typ, structName, fieldName)
case reflect.Int32:
return compileInt32(typ, structName, fieldName)
case reflect.Int64:
return compileInt64(typ, structName, fieldName)
case reflect.Uint:
return compileUint(typ, structName, fieldName)
case reflect.Uint8:
return compileUint8(typ, structName, fieldName)
case reflect.Uint16:
return compileUint16(typ, structName, fieldName)
case reflect.Uint32:
return compileUint32(typ, structName, fieldName)
case reflect.Uint64:
return compileUint64(typ, structName, fieldName)
case reflect.String:
return compileString(typ, structName, fieldName)
case reflect.Bool:
return compileBool(structName, fieldName)
case reflect.Float32:
return compileFloat32(structName, fieldName)
case reflect.Float64:
return compileFloat64(structName, fieldName)
case reflect.Func:
return compileFunc(typ, structName, fieldName)
}
return nil, &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(typ),
Offset: 0,
Struct: structName,
Field: fieldName,
}
}
func isStringTagSupportedType(typ *runtime.Type) bool {
switch {
case implementsUnmarshalJSONType(runtime.PtrTo(typ)):
return false
case runtime.PtrTo(typ).Implements(unmarshalTextType):
return false
}
switch typ.Kind() {
case reflect.Map:
return false
case reflect.Slice:
return false
case reflect.Array:
return false
case reflect.Struct:
return false
case reflect.Interface:
return false
}
return true
}
func compileMapKey(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
if runtime.PtrTo(typ).Implements(unmarshalTextType) {
return newUnmarshalTextDecoder(runtime.PtrTo(typ), structName, fieldName), nil
}
dec, err := compile(typ, structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
for {
switch t := dec.(type) {
case *stringDecoder, *interfaceDecoder:
return dec, nil
case *boolDecoder, *intDecoder, *uintDecoder, *numberDecoder:
return newWrappedStringDecoder(typ, dec, structName, fieldName), nil
case *ptrDecoder:
dec = t.dec
default:
goto ERROR
}
}
ERROR:
return nil, &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(typ),
Offset: 0,
Struct: structName,
Field: fieldName,
}
}
func compilePtr(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
dec, err := compile(typ.Elem(), structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
return newPtrDecoder(dec, typ.Elem(), structName, fieldName), nil
}
func compileInt(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
*(*int)(p) = int(v)
}), nil
}
func compileInt8(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
*(*int8)(p) = int8(v)
}), nil
}
func compileInt16(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
*(*int16)(p) = int16(v)
}), nil
}
func compileInt32(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
*(*int32)(p) = int32(v)
}), nil
}
func compileInt64(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newIntDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v int64) {
*(*int64)(p) = v
}), nil
}
func compileUint(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
*(*uint)(p) = uint(v)
}), nil
}
func compileUint8(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
*(*uint8)(p) = uint8(v)
}), nil
}
func compileUint16(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
*(*uint16)(p) = uint16(v)
}), nil
}
func compileUint32(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
*(*uint32)(p) = uint32(v)
}), nil
}
func compileUint64(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newUintDecoder(typ, structName, fieldName, func(p unsafe.Pointer, v uint64) {
*(*uint64)(p) = v
}), nil
}
func compileFloat32(structName, fieldName string) (Decoder, error) {
return newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
*(*float32)(p) = float32(v)
}), nil
}
func compileFloat64(structName, fieldName string) (Decoder, error) {
return newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
*(*float64)(p) = v
}), nil
}
func compileString(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
if typ == runtime.Type2RType(jsonNumberType) {
return newNumberDecoder(structName, fieldName, func(p unsafe.Pointer, v json.Number) {
*(*json.Number)(p) = v
}), nil
}
return newStringDecoder(structName, fieldName), nil
}
func compileBool(structName, fieldName string) (Decoder, error) {
return newBoolDecoder(structName, fieldName), nil
}
func compileBytes(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newBytesDecoder(typ, structName, fieldName), nil
}
func compileSlice(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
elem := typ.Elem()
decoder, err := compile(elem, structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
return newSliceDecoder(decoder, elem, elem.Size(), structName, fieldName), nil
}
func compileArray(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
elem := typ.Elem()
decoder, err := compile(elem, structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
return newArrayDecoder(decoder, elem, typ.Len(), structName, fieldName), nil
}
func compileMap(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
keyDec, err := compileMapKey(typ.Key(), structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
valueDec, err := compile(typ.Elem(), structName, fieldName, structTypeToDecoder)
if err != nil {
return nil, err
}
return newMapDecoder(typ, typ.Key(), keyDec, typ.Elem(), valueDec, structName, fieldName), nil
}
func compileInterface(typ *runtime.Type, structName, fieldName string) (Decoder, error) {
return newInterfaceDecoder(typ, structName, fieldName), nil
}
func compileFunc(typ *runtime.Type, strutName, fieldName string) (Decoder, error) {
return newFuncDecoder(typ, strutName, fieldName), nil
}
func removeConflictFields(fieldMap map[string]*structFieldSet, conflictedMap map[string]struct{}, dec *structDecoder, field reflect.StructField) {
for k, v := range dec.fieldMap {
if _, exists := conflictedMap[k]; exists {
// already conflicted key
continue
}
set, exists := fieldMap[k]
if !exists {
fieldSet := &structFieldSet{
dec: v.dec,
offset: field.Offset + v.offset,
isTaggedKey: v.isTaggedKey,
key: k,
keyLen: int64(len(k)),
}
fieldMap[k] = fieldSet
lower := strings.ToLower(k)
if _, exists := fieldMap[lower]; !exists {
fieldMap[lower] = fieldSet
}
continue
}
if set.isTaggedKey {
if v.isTaggedKey {
// conflict tag key
delete(fieldMap, k)
delete(fieldMap, strings.ToLower(k))
conflictedMap[k] = struct{}{}
conflictedMap[strings.ToLower(k)] = struct{}{}
}
} else {
if v.isTaggedKey {
fieldSet := &structFieldSet{
dec: v.dec,
offset: field.Offset + v.offset,
isTaggedKey: v.isTaggedKey,
key: k,
keyLen: int64(len(k)),
}
fieldMap[k] = fieldSet
lower := strings.ToLower(k)
if _, exists := fieldMap[lower]; !exists {
fieldMap[lower] = fieldSet
}
} else {
// conflict tag key
delete(fieldMap, k)
delete(fieldMap, strings.ToLower(k))
conflictedMap[k] = struct{}{}
conflictedMap[strings.ToLower(k)] = struct{}{}
}
}
}
}
func compileStruct(typ *runtime.Type, structName, fieldName string, structTypeToDecoder map[uintptr]Decoder) (Decoder, error) {
fieldNum := typ.NumField()
conflictedMap := map[string]struct{}{}
fieldMap := map[string]*structFieldSet{}
typeptr := uintptr(unsafe.Pointer(typ))
if dec, exists := structTypeToDecoder[typeptr]; exists {
return dec, nil
}
structDec := newStructDecoder(structName, fieldName, fieldMap)
structTypeToDecoder[typeptr] = structDec
structName = typ.Name()
for i := 0; i < fieldNum; i++ {
field := typ.Field(i)
if runtime.IsIgnoredStructField(field) {
continue
}
isUnexportedField := unicode.IsLower([]rune(field.Name)[0])
tag := runtime.StructTagFromField(field)
dec, err := compile(runtime.Type2RType(field.Type), structName, field.Name, structTypeToDecoder)
if err != nil {
return nil, err
}
if field.Anonymous && !tag.IsTaggedKey {
if stDec, ok := dec.(*structDecoder); ok {
if runtime.Type2RType(field.Type) == typ {
// recursive definition
continue
}
removeConflictFields(fieldMap, conflictedMap, stDec, field)
} else if pdec, ok := dec.(*ptrDecoder); ok {
contentDec := pdec.contentDecoder()
if pdec.typ == typ {
// recursive definition
continue
}
var fieldSetErr error
if isUnexportedField {
fieldSetErr = fmt.Errorf(
"json: cannot set embedded pointer to unexported struct: %v",
field.Type.Elem(),
)
}
if dec, ok := contentDec.(*structDecoder); ok {
for k, v := range dec.fieldMap {
if _, exists := conflictedMap[k]; exists {
// already conflicted key
continue
}
set, exists := fieldMap[k]
if !exists {
fieldSet := &structFieldSet{
dec: newAnonymousFieldDecoder(pdec.typ, v.offset, v.dec),
offset: field.Offset,
isTaggedKey: v.isTaggedKey,
key: k,
keyLen: int64(len(k)),
err: fieldSetErr,
}
fieldMap[k] = fieldSet
lower := strings.ToLower(k)
if _, exists := fieldMap[lower]; !exists {
fieldMap[lower] = fieldSet
}
continue
}
if set.isTaggedKey {
if v.isTaggedKey {
// conflict tag key
delete(fieldMap, k)
delete(fieldMap, strings.ToLower(k))
conflictedMap[k] = struct{}{}
conflictedMap[strings.ToLower(k)] = struct{}{}
}
} else {
if v.isTaggedKey {
fieldSet := &structFieldSet{
dec: newAnonymousFieldDecoder(pdec.typ, v.offset, v.dec),
offset: field.Offset,
isTaggedKey: v.isTaggedKey,
key: k,
keyLen: int64(len(k)),
err: fieldSetErr,
}
fieldMap[k] = fieldSet
lower := strings.ToLower(k)
if _, exists := fieldMap[lower]; !exists {
fieldMap[lower] = fieldSet
}
} else {
// conflict tag key
delete(fieldMap, k)
delete(fieldMap, strings.ToLower(k))
conflictedMap[k] = struct{}{}
conflictedMap[strings.ToLower(k)] = struct{}{}
}
}
}
}
}
} else {
if tag.IsString && isStringTagSupportedType(runtime.Type2RType(field.Type)) {
dec = newWrappedStringDecoder(runtime.Type2RType(field.Type), dec, structName, field.Name)
}
var key string
if tag.Key != "" {
key = tag.Key
} else {
key = field.Name
}
fieldSet := &structFieldSet{
dec: dec,
offset: field.Offset,
isTaggedKey: tag.IsTaggedKey,
key: key,
keyLen: int64(len(key)),
}
fieldMap[key] = fieldSet
lower := strings.ToLower(key)
if _, exists := fieldMap[lower]; !exists {
fieldMap[lower] = fieldSet
}
}
}
delete(structTypeToDecoder, typeptr)
structDec.tryOptimize()
return structDec, nil
}
func implementsUnmarshalJSONType(typ *runtime.Type) bool {
return typ.Implements(unmarshalJSONType) || typ.Implements(unmarshalJSONContextType)
}

View file

@ -0,0 +1,28 @@
// +build !race
package decoder
import (
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
func CompileToGetDecoder(typ *runtime.Type) (Decoder, error) {
typeptr := uintptr(unsafe.Pointer(typ))
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetDecoderSlowPath(typeptr, typ)
}
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
if dec := cachedDecoder[index]; dec != nil {
return dec, nil
}
dec, err := compileHead(typ, map[uintptr]Decoder{})
if err != nil {
return nil, err
}
cachedDecoder[index] = dec
return dec, nil
}

View file

@ -0,0 +1,36 @@
// +build race
package decoder
import (
"sync"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
var decMu sync.RWMutex
func CompileToGetDecoder(typ *runtime.Type) (Decoder, error) {
typeptr := uintptr(unsafe.Pointer(typ))
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetDecoderSlowPath(typeptr, typ)
}
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
decMu.RLock()
if dec := cachedDecoder[index]; dec != nil {
decMu.RUnlock()
return dec, nil
}
decMu.RUnlock()
dec, err := compileHead(typ, map[uintptr]Decoder{})
if err != nil {
return nil, err
}
decMu.Lock()
cachedDecoder[index] = dec
decMu.Unlock()
return dec, nil
}

View file

@ -0,0 +1,254 @@
package decoder
import (
"sync"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type RuntimeContext struct {
Buf []byte
Option *Option
}
var (
runtimeContextPool = sync.Pool{
New: func() interface{} {
return &RuntimeContext{
Option: &Option{},
}
},
}
)
func TakeRuntimeContext() *RuntimeContext {
return runtimeContextPool.Get().(*RuntimeContext)
}
func ReleaseRuntimeContext(ctx *RuntimeContext) {
runtimeContextPool.Put(ctx)
}
var (
isWhiteSpace = [256]bool{}
)
func init() {
isWhiteSpace[' '] = true
isWhiteSpace['\n'] = true
isWhiteSpace['\t'] = true
isWhiteSpace['\r'] = true
}
func char(ptr unsafe.Pointer, offset int64) byte {
return *(*byte)(unsafe.Pointer(uintptr(ptr) + uintptr(offset)))
}
func skipWhiteSpace(buf []byte, cursor int64) int64 {
for isWhiteSpace[buf[cursor]] {
cursor++
}
return cursor
}
func skipObject(buf []byte, cursor, depth int64) (int64, error) {
braceCount := 1
for {
switch buf[cursor] {
case '{':
braceCount++
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
case '}':
depth--
braceCount--
if braceCount == 0 {
return cursor + 1, nil
}
case '[':
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
case ']':
depth--
case '"':
for {
cursor++
switch buf[cursor] {
case '\\':
cursor++
if buf[cursor] == nul {
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
case '"':
goto SWITCH_OUT
case nul:
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
}
case nul:
return 0, errors.ErrUnexpectedEndOfJSON("object of object", cursor)
}
SWITCH_OUT:
cursor++
}
}
func skipArray(buf []byte, cursor, depth int64) (int64, error) {
bracketCount := 1
for {
switch buf[cursor] {
case '[':
bracketCount++
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
case ']':
bracketCount--
depth--
if bracketCount == 0 {
return cursor + 1, nil
}
case '{':
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
case '}':
depth--
case '"':
for {
cursor++
switch buf[cursor] {
case '\\':
cursor++
if buf[cursor] == nul {
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
case '"':
goto SWITCH_OUT
case nul:
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
}
case nul:
return 0, errors.ErrUnexpectedEndOfJSON("array of object", cursor)
}
SWITCH_OUT:
cursor++
}
}
func skipValue(buf []byte, cursor, depth int64) (int64, error) {
for {
switch buf[cursor] {
case ' ', '\t', '\n', '\r':
cursor++
continue
case '{':
return skipObject(buf, cursor+1, depth+1)
case '[':
return skipArray(buf, cursor+1, depth+1)
case '"':
for {
cursor++
switch buf[cursor] {
case '\\':
cursor++
if buf[cursor] == nul {
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
case '"':
return cursor + 1, nil
case nul:
return 0, errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
for {
cursor++
if floatTable[buf[cursor]] {
continue
}
break
}
return cursor, nil
case 't':
if err := validateTrue(buf, cursor); err != nil {
return 0, err
}
cursor += 4
return cursor, nil
case 'f':
if err := validateFalse(buf, cursor); err != nil {
return 0, err
}
cursor += 5
return cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
return cursor, nil
default:
return cursor, errors.ErrUnexpectedEndOfJSON("null", cursor)
}
}
}
func validateTrue(buf []byte, cursor int64) error {
if cursor+3 >= int64(len(buf)) {
return errors.ErrUnexpectedEndOfJSON("true", cursor)
}
if buf[cursor+1] != 'r' {
return errors.ErrInvalidCharacter(buf[cursor+1], "true", cursor)
}
if buf[cursor+2] != 'u' {
return errors.ErrInvalidCharacter(buf[cursor+2], "true", cursor)
}
if buf[cursor+3] != 'e' {
return errors.ErrInvalidCharacter(buf[cursor+3], "true", cursor)
}
return nil
}
func validateFalse(buf []byte, cursor int64) error {
if cursor+4 >= int64(len(buf)) {
return errors.ErrUnexpectedEndOfJSON("false", cursor)
}
if buf[cursor+1] != 'a' {
return errors.ErrInvalidCharacter(buf[cursor+1], "false", cursor)
}
if buf[cursor+2] != 'l' {
return errors.ErrInvalidCharacter(buf[cursor+2], "false", cursor)
}
if buf[cursor+3] != 's' {
return errors.ErrInvalidCharacter(buf[cursor+3], "false", cursor)
}
if buf[cursor+4] != 'e' {
return errors.ErrInvalidCharacter(buf[cursor+4], "false", cursor)
}
return nil
}
func validateNull(buf []byte, cursor int64) error {
if cursor+3 >= int64(len(buf)) {
return errors.ErrUnexpectedEndOfJSON("null", cursor)
}
if buf[cursor+1] != 'u' {
return errors.ErrInvalidCharacter(buf[cursor+1], "null", cursor)
}
if buf[cursor+2] != 'l' {
return errors.ErrInvalidCharacter(buf[cursor+2], "null", cursor)
}
if buf[cursor+3] != 'l' {
return errors.ErrInvalidCharacter(buf[cursor+3], "null", cursor)
}
return nil
}

View file

@ -0,0 +1,158 @@
package decoder
import (
"strconv"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type floatDecoder struct {
op func(unsafe.Pointer, float64)
structName string
fieldName string
}
func newFloatDecoder(structName, fieldName string, op func(unsafe.Pointer, float64)) *floatDecoder {
return &floatDecoder{op: op, structName: structName, fieldName: fieldName}
}
var (
floatTable = [256]bool{
'0': true,
'1': true,
'2': true,
'3': true,
'4': true,
'5': true,
'6': true,
'7': true,
'8': true,
'9': true,
'.': true,
'e': true,
'E': true,
'+': true,
'-': true,
}
validEndNumberChar = [256]bool{
nul: true,
' ': true,
'\t': true,
'\r': true,
'\n': true,
',': true,
':': true,
'}': true,
']': true,
}
)
func floatBytes(s *Stream) []byte {
start := s.cursor
for {
s.cursor++
if floatTable[s.char()] {
continue
} else if s.char() == nul {
if s.read() {
s.cursor-- // for retry current character
continue
}
}
break
}
return s.buf[start:s.cursor]
}
func (d *floatDecoder) decodeStreamByte(s *Stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return floatBytes(s), nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
goto ERROR
default:
goto ERROR
}
}
ERROR:
return nil, errors.ErrUnexpectedEndOfJSON("float", s.totalOffset())
}
func (d *floatDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := cursor
cursor++
for floatTable[buf[cursor]] {
cursor++
}
num := buf[start:cursor]
return num, cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
default:
return nil, 0, errors.ErrUnexpectedEndOfJSON("float", cursor)
}
}
}
func (d *floatDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
return nil
}
str := *(*string)(unsafe.Pointer(&bytes))
f64, err := strconv.ParseFloat(str, 64)
if err != nil {
return errors.ErrSyntax(err.Error(), s.totalOffset())
}
d.op(p, f64)
return nil
}
func (d *floatDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
bytes, c, err := d.decodeByte(buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
return c, nil
}
cursor = c
if !validEndNumberChar[buf[cursor]] {
return 0, errors.ErrUnexpectedEndOfJSON("float", cursor)
}
s := *(*string)(unsafe.Pointer(&bytes))
f64, err := strconv.ParseFloat(s, 64)
if err != nil {
return 0, errors.ErrSyntax(err.Error(), cursor)
}
d.op(p, f64)
return cursor, nil
}

View file

@ -0,0 +1,141 @@
package decoder
import (
"bytes"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type funcDecoder struct {
typ *runtime.Type
structName string
fieldName string
}
func newFuncDecoder(typ *runtime.Type, structName, fieldName string) *funcDecoder {
fnDecoder := &funcDecoder{typ, structName, fieldName}
return fnDecoder
}
func (d *funcDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
s.skipWhiteSpace()
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
if len(src) > 0 {
switch src[0] {
case '"':
return &errors.UnmarshalTypeError{
Value: "string",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case '[':
return &errors.UnmarshalTypeError{
Value: "array",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case '{':
return &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return &errors.UnmarshalTypeError{
Value: "number",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case 'n':
if err := nullBytes(s); err != nil {
return err
}
*(*unsafe.Pointer)(p) = nil
return nil
case 't':
if err := trueBytes(s); err == nil {
return &errors.UnmarshalTypeError{
Value: "boolean",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
}
case 'f':
if err := falseBytes(s); err == nil {
return &errors.UnmarshalTypeError{
Value: "boolean",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
}
}
}
return errors.ErrNotAtBeginningOfValue(start)
}
func (d *funcDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
if len(src) > 0 {
switch src[0] {
case '"':
return 0, &errors.UnmarshalTypeError{
Value: "string",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case '[':
return 0, &errors.UnmarshalTypeError{
Value: "array",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case '{':
return 0, &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return 0, &errors.UnmarshalTypeError{
Value: "number",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case 'n':
if bytes.Equal(src, nullbytes) {
*(*unsafe.Pointer)(p) = nil
return end, nil
}
case 't':
if err := validateTrue(buf, start); err == nil {
return 0, &errors.UnmarshalTypeError{
Value: "boolean",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
}
case 'f':
if err := validateFalse(buf, start); err == nil {
return 0, &errors.UnmarshalTypeError{
Value: "boolean",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
}
}
}
return 0, errors.ErrNotAtBeginningOfValue(start)
}

242
vendor/github.com/goccy/go-json/internal/decoder/int.go generated vendored Normal file
View file

@ -0,0 +1,242 @@
package decoder
import (
"fmt"
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type intDecoder struct {
typ *runtime.Type
kind reflect.Kind
op func(unsafe.Pointer, int64)
structName string
fieldName string
}
func newIntDecoder(typ *runtime.Type, structName, fieldName string, op func(unsafe.Pointer, int64)) *intDecoder {
return &intDecoder{
typ: typ,
kind: typ.Kind(),
op: op,
structName: structName,
fieldName: fieldName,
}
}
func (d *intDecoder) typeError(buf []byte, offset int64) *errors.UnmarshalTypeError {
return &errors.UnmarshalTypeError{
Value: fmt.Sprintf("number %s", string(buf)),
Type: runtime.RType2Type(d.typ),
Struct: d.structName,
Field: d.fieldName,
Offset: offset,
}
}
var (
pow10i64 = [...]int64{
1e00, 1e01, 1e02, 1e03, 1e04, 1e05, 1e06, 1e07, 1e08, 1e09,
1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18,
}
pow10i64Len = len(pow10i64)
)
func (d *intDecoder) parseInt(b []byte) (int64, error) {
isNegative := false
if b[0] == '-' {
b = b[1:]
isNegative = true
}
maxDigit := len(b)
if maxDigit > pow10i64Len {
return 0, fmt.Errorf("invalid length of number")
}
sum := int64(0)
for i := 0; i < maxDigit; i++ {
c := int64(b[i]) - 48
digitValue := pow10i64[maxDigit-i-1]
sum += c * digitValue
}
if isNegative {
return -1 * sum, nil
}
return sum, nil
}
var (
numTable = [256]bool{
'0': true,
'1': true,
'2': true,
'3': true,
'4': true,
'5': true,
'6': true,
'7': true,
'8': true,
'9': true,
}
)
var (
numZeroBuf = []byte{'0'}
)
func (d *intDecoder) decodeStreamByte(s *Stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '-':
start := s.cursor
for {
s.cursor++
if numTable[s.char()] {
continue
} else if s.char() == nul {
if s.read() {
s.cursor-- // for retry current character
continue
}
}
break
}
num := s.buf[start:s.cursor]
if len(num) < 2 {
goto ERROR
}
return num, nil
case '0':
s.cursor++
return numZeroBuf, nil
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := s.cursor
for {
s.cursor++
if numTable[s.char()] {
continue
} else if s.char() == nul {
if s.read() {
s.cursor-- // for retry current character
continue
}
}
break
}
num := s.buf[start:s.cursor]
return num, nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
goto ERROR
default:
return nil, d.typeError([]byte{s.char()}, s.totalOffset())
}
}
ERROR:
return nil, errors.ErrUnexpectedEndOfJSON("number(integer)", s.totalOffset())
}
func (d *intDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
b := (*sliceHeader)(unsafe.Pointer(&buf)).data
for {
switch char(b, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
continue
case '0':
cursor++
return numZeroBuf, cursor, nil
case '-', '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := cursor
cursor++
for numTable[char(b, cursor)] {
cursor++
}
num := buf[start:cursor]
return num, cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
default:
return nil, 0, d.typeError([]byte{char(b, cursor)}, cursor)
}
}
}
func (d *intDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
return nil
}
i64, err := d.parseInt(bytes)
if err != nil {
return d.typeError(bytes, s.totalOffset())
}
switch d.kind {
case reflect.Int8:
if i64 <= -1*(1<<7) || (1<<7) <= i64 {
return d.typeError(bytes, s.totalOffset())
}
case reflect.Int16:
if i64 <= -1*(1<<15) || (1<<15) <= i64 {
return d.typeError(bytes, s.totalOffset())
}
case reflect.Int32:
if i64 <= -1*(1<<31) || (1<<31) <= i64 {
return d.typeError(bytes, s.totalOffset())
}
}
d.op(p, i64)
s.reset()
return nil
}
func (d *intDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
return c, nil
}
cursor = c
i64, err := d.parseInt(bytes)
if err != nil {
return 0, d.typeError(bytes, cursor)
}
switch d.kind {
case reflect.Int8:
if i64 <= -1*(1<<7) || (1<<7) <= i64 {
return 0, d.typeError(bytes, cursor)
}
case reflect.Int16:
if i64 <= -1*(1<<15) || (1<<15) <= i64 {
return 0, d.typeError(bytes, cursor)
}
case reflect.Int32:
if i64 <= -1*(1<<31) || (1<<31) <= i64 {
return 0, d.typeError(bytes, cursor)
}
}
d.op(p, i64)
return cursor, nil
}

View file

@ -0,0 +1,458 @@
package decoder
import (
"bytes"
"encoding"
"encoding/json"
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type interfaceDecoder struct {
typ *runtime.Type
structName string
fieldName string
sliceDecoder *sliceDecoder
mapDecoder *mapDecoder
floatDecoder *floatDecoder
numberDecoder *numberDecoder
stringDecoder *stringDecoder
}
func newEmptyInterfaceDecoder(structName, fieldName string) *interfaceDecoder {
ifaceDecoder := &interfaceDecoder{
typ: emptyInterfaceType,
structName: structName,
fieldName: fieldName,
floatDecoder: newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
*(*interface{})(p) = v
}),
numberDecoder: newNumberDecoder(structName, fieldName, func(p unsafe.Pointer, v json.Number) {
*(*interface{})(p) = v
}),
stringDecoder: newStringDecoder(structName, fieldName),
}
ifaceDecoder.sliceDecoder = newSliceDecoder(
ifaceDecoder,
emptyInterfaceType,
emptyInterfaceType.Size(),
structName, fieldName,
)
ifaceDecoder.mapDecoder = newMapDecoder(
interfaceMapType,
stringType,
ifaceDecoder.stringDecoder,
interfaceMapType.Elem(),
ifaceDecoder,
structName,
fieldName,
)
return ifaceDecoder
}
func newInterfaceDecoder(typ *runtime.Type, structName, fieldName string) *interfaceDecoder {
emptyIfaceDecoder := newEmptyInterfaceDecoder(structName, fieldName)
stringDecoder := newStringDecoder(structName, fieldName)
return &interfaceDecoder{
typ: typ,
structName: structName,
fieldName: fieldName,
sliceDecoder: newSliceDecoder(
emptyIfaceDecoder,
emptyInterfaceType,
emptyInterfaceType.Size(),
structName, fieldName,
),
mapDecoder: newMapDecoder(
interfaceMapType,
stringType,
stringDecoder,
interfaceMapType.Elem(),
emptyIfaceDecoder,
structName,
fieldName,
),
floatDecoder: newFloatDecoder(structName, fieldName, func(p unsafe.Pointer, v float64) {
*(*interface{})(p) = v
}),
numberDecoder: newNumberDecoder(structName, fieldName, func(p unsafe.Pointer, v json.Number) {
*(*interface{})(p) = v
}),
stringDecoder: stringDecoder,
}
}
func (d *interfaceDecoder) numDecoder(s *Stream) Decoder {
if s.UseNumber {
return d.numberDecoder
}
return d.floatDecoder
}
var (
emptyInterfaceType = runtime.Type2RType(reflect.TypeOf((*interface{})(nil)).Elem())
interfaceMapType = runtime.Type2RType(
reflect.TypeOf((*map[string]interface{})(nil)).Elem(),
)
stringType = runtime.Type2RType(
reflect.TypeOf(""),
)
)
func decodeStreamUnmarshaler(s *Stream, depth int64, unmarshaler json.Unmarshaler) error {
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
dst := make([]byte, len(src))
copy(dst, src)
if err := unmarshaler.UnmarshalJSON(dst); err != nil {
return err
}
return nil
}
func decodeStreamUnmarshalerContext(s *Stream, depth int64, unmarshaler unmarshalerContext) error {
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
dst := make([]byte, len(src))
copy(dst, src)
if err := unmarshaler.UnmarshalJSON(s.Option.Context, dst); err != nil {
return err
}
return nil
}
func decodeUnmarshaler(buf []byte, cursor, depth int64, unmarshaler json.Unmarshaler) (int64, error) {
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
dst := make([]byte, len(src))
copy(dst, src)
if err := unmarshaler.UnmarshalJSON(dst); err != nil {
return 0, err
}
return end, nil
}
func decodeUnmarshalerContext(ctx *RuntimeContext, buf []byte, cursor, depth int64, unmarshaler unmarshalerContext) (int64, error) {
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
dst := make([]byte, len(src))
copy(dst, src)
if err := unmarshaler.UnmarshalJSON(ctx.Option.Context, dst); err != nil {
return 0, err
}
return end, nil
}
func decodeStreamTextUnmarshaler(s *Stream, depth int64, unmarshaler encoding.TextUnmarshaler, p unsafe.Pointer) error {
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
if bytes.Equal(src, nullbytes) {
*(*unsafe.Pointer)(p) = nil
return nil
}
dst := make([]byte, len(src))
copy(dst, src)
if err := unmarshaler.UnmarshalText(dst); err != nil {
return err
}
return nil
}
func decodeTextUnmarshaler(buf []byte, cursor, depth int64, unmarshaler encoding.TextUnmarshaler, p unsafe.Pointer) (int64, error) {
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
if bytes.Equal(src, nullbytes) {
*(*unsafe.Pointer)(p) = nil
return end, nil
}
if s, ok := unquoteBytes(src); ok {
src = s
}
if err := unmarshaler.UnmarshalText(src); err != nil {
return 0, err
}
return end, nil
}
func (d *interfaceDecoder) decodeStreamEmptyInterface(s *Stream, depth int64, p unsafe.Pointer) error {
c := s.skipWhiteSpace()
for {
switch c {
case '{':
var v map[string]interface{}
ptr := unsafe.Pointer(&v)
if err := d.mapDecoder.DecodeStream(s, depth, ptr); err != nil {
return err
}
*(*interface{})(p) = v
return nil
case '[':
var v []interface{}
ptr := unsafe.Pointer(&v)
if err := d.sliceDecoder.DecodeStream(s, depth, ptr); err != nil {
return err
}
*(*interface{})(p) = v
return nil
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return d.numDecoder(s).DecodeStream(s, depth, p)
case '"':
s.cursor++
start := s.cursor
for {
switch s.char() {
case '\\':
if _, err := decodeEscapeString(s, nil); err != nil {
return err
}
case '"':
literal := s.buf[start:s.cursor]
s.cursor++
*(*interface{})(p) = string(literal)
return nil
case nul:
if s.read() {
continue
}
return errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
s.cursor++
}
case 't':
if err := trueBytes(s); err != nil {
return err
}
**(**interface{})(unsafe.Pointer(&p)) = true
return nil
case 'f':
if err := falseBytes(s); err != nil {
return err
}
**(**interface{})(unsafe.Pointer(&p)) = false
return nil
case 'n':
if err := nullBytes(s); err != nil {
return err
}
*(*interface{})(p) = nil
return nil
case nul:
if s.read() {
c = s.char()
continue
}
}
break
}
return errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func (d *interfaceDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
runtimeInterfaceValue := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: p,
}))
rv := reflect.ValueOf(runtimeInterfaceValue)
if rv.NumMethod() > 0 && rv.CanInterface() {
if u, ok := rv.Interface().(unmarshalerContext); ok {
return decodeStreamUnmarshalerContext(s, depth, u)
}
if u, ok := rv.Interface().(json.Unmarshaler); ok {
return decodeStreamUnmarshaler(s, depth, u)
}
if u, ok := rv.Interface().(encoding.TextUnmarshaler); ok {
return decodeStreamTextUnmarshaler(s, depth, u, p)
}
if s.skipWhiteSpace() == 'n' {
if err := nullBytes(s); err != nil {
return err
}
*(*interface{})(p) = nil
return nil
}
return d.errUnmarshalType(rv.Type(), s.totalOffset())
}
iface := rv.Interface()
ifaceHeader := (*emptyInterface)(unsafe.Pointer(&iface))
typ := ifaceHeader.typ
if ifaceHeader.ptr == nil || d.typ == typ || typ == nil {
// concrete type is empty interface
return d.decodeStreamEmptyInterface(s, depth, p)
}
if typ.Kind() == reflect.Ptr && typ.Elem() == d.typ || typ.Kind() != reflect.Ptr {
return d.decodeStreamEmptyInterface(s, depth, p)
}
if s.skipWhiteSpace() == 'n' {
if err := nullBytes(s); err != nil {
return err
}
*(*interface{})(p) = nil
return nil
}
decoder, err := CompileToGetDecoder(typ)
if err != nil {
return err
}
return decoder.DecodeStream(s, depth, ifaceHeader.ptr)
}
func (d *interfaceDecoder) errUnmarshalType(typ reflect.Type, offset int64) *errors.UnmarshalTypeError {
return &errors.UnmarshalTypeError{
Value: typ.String(),
Type: typ,
Offset: offset,
Struct: d.structName,
Field: d.fieldName,
}
}
func (d *interfaceDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
runtimeInterfaceValue := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: p,
}))
rv := reflect.ValueOf(runtimeInterfaceValue)
if rv.NumMethod() > 0 && rv.CanInterface() {
if u, ok := rv.Interface().(unmarshalerContext); ok {
return decodeUnmarshalerContext(ctx, buf, cursor, depth, u)
}
if u, ok := rv.Interface().(json.Unmarshaler); ok {
return decodeUnmarshaler(buf, cursor, depth, u)
}
if u, ok := rv.Interface().(encoding.TextUnmarshaler); ok {
return decodeTextUnmarshaler(buf, cursor, depth, u, p)
}
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == 'n' {
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**interface{})(unsafe.Pointer(&p)) = nil
return cursor, nil
}
return 0, d.errUnmarshalType(rv.Type(), cursor)
}
iface := rv.Interface()
ifaceHeader := (*emptyInterface)(unsafe.Pointer(&iface))
typ := ifaceHeader.typ
if ifaceHeader.ptr == nil || d.typ == typ || typ == nil {
// concrete type is empty interface
return d.decodeEmptyInterface(ctx, cursor, depth, p)
}
if typ.Kind() == reflect.Ptr && typ.Elem() == d.typ || typ.Kind() != reflect.Ptr {
return d.decodeEmptyInterface(ctx, cursor, depth, p)
}
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == 'n' {
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**interface{})(unsafe.Pointer(&p)) = nil
return cursor, nil
}
decoder, err := CompileToGetDecoder(typ)
if err != nil {
return 0, err
}
return decoder.Decode(ctx, cursor, depth, ifaceHeader.ptr)
}
func (d *interfaceDecoder) decodeEmptyInterface(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
switch buf[cursor] {
case '{':
var v map[string]interface{}
ptr := unsafe.Pointer(&v)
cursor, err := d.mapDecoder.Decode(ctx, cursor, depth, ptr)
if err != nil {
return 0, err
}
**(**interface{})(unsafe.Pointer(&p)) = v
return cursor, nil
case '[':
var v []interface{}
ptr := unsafe.Pointer(&v)
cursor, err := d.sliceDecoder.Decode(ctx, cursor, depth, ptr)
if err != nil {
return 0, err
}
**(**interface{})(unsafe.Pointer(&p)) = v
return cursor, nil
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return d.floatDecoder.Decode(ctx, cursor, depth, p)
case '"':
var v string
ptr := unsafe.Pointer(&v)
cursor, err := d.stringDecoder.Decode(ctx, cursor, depth, ptr)
if err != nil {
return 0, err
}
**(**interface{})(unsafe.Pointer(&p)) = v
return cursor, nil
case 't':
if err := validateTrue(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**interface{})(unsafe.Pointer(&p)) = true
return cursor, nil
case 'f':
if err := validateFalse(buf, cursor); err != nil {
return 0, err
}
cursor += 5
**(**interface{})(unsafe.Pointer(&p)) = false
return cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**interface{})(unsafe.Pointer(&p)) = nil
return cursor, nil
}
return cursor, errors.ErrNotAtBeginningOfValue(cursor)
}

173
vendor/github.com/goccy/go-json/internal/decoder/map.go generated vendored Normal file
View file

@ -0,0 +1,173 @@
package decoder
import (
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type mapDecoder struct {
mapType *runtime.Type
keyType *runtime.Type
valueType *runtime.Type
stringKeyType bool
keyDecoder Decoder
valueDecoder Decoder
structName string
fieldName string
}
func newMapDecoder(mapType *runtime.Type, keyType *runtime.Type, keyDec Decoder, valueType *runtime.Type, valueDec Decoder, structName, fieldName string) *mapDecoder {
return &mapDecoder{
mapType: mapType,
keyDecoder: keyDec,
keyType: keyType,
stringKeyType: keyType.Kind() == reflect.String,
valueType: valueType,
valueDecoder: valueDec,
structName: structName,
fieldName: fieldName,
}
}
//go:linkname makemap reflect.makemap
func makemap(*runtime.Type, int) unsafe.Pointer
//nolint:golint
//go:linkname mapassign_faststr runtime.mapassign_faststr
//go:noescape
func mapassign_faststr(t *runtime.Type, m unsafe.Pointer, s string) unsafe.Pointer
//go:linkname mapassign reflect.mapassign
//go:noescape
func mapassign(t *runtime.Type, m unsafe.Pointer, k, v unsafe.Pointer)
func (d *mapDecoder) mapassign(t *runtime.Type, m, k, v unsafe.Pointer) {
if d.stringKeyType {
mapV := mapassign_faststr(d.mapType, m, *(*string)(k))
typedmemmove(d.valueType, mapV, v)
} else {
mapassign(t, m, k, v)
}
}
func (d *mapDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
switch s.skipWhiteSpace() {
case 'n':
if err := nullBytes(s); err != nil {
return err
}
**(**unsafe.Pointer)(unsafe.Pointer(&p)) = nil
return nil
case '{':
default:
return errors.ErrExpected("{ character for map value", s.totalOffset())
}
mapValue := *(*unsafe.Pointer)(p)
if mapValue == nil {
mapValue = makemap(d.mapType, 0)
}
if s.buf[s.cursor+1] == '}' {
*(*unsafe.Pointer)(p) = mapValue
s.cursor += 2
return nil
}
for {
s.cursor++
k := unsafe_New(d.keyType)
if err := d.keyDecoder.DecodeStream(s, depth, k); err != nil {
return err
}
s.skipWhiteSpace()
if !s.equalChar(':') {
return errors.ErrExpected("colon after object key", s.totalOffset())
}
s.cursor++
v := unsafe_New(d.valueType)
if err := d.valueDecoder.DecodeStream(s, depth, v); err != nil {
return err
}
d.mapassign(d.mapType, mapValue, k, v)
s.skipWhiteSpace()
if s.equalChar('}') {
**(**unsafe.Pointer)(unsafe.Pointer(&p)) = mapValue
s.cursor++
return nil
}
if !s.equalChar(',') {
return errors.ErrExpected("comma after object value", s.totalOffset())
}
}
}
func (d *mapDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
cursor = skipWhiteSpace(buf, cursor)
buflen := int64(len(buf))
if buflen < 2 {
return 0, errors.ErrExpected("{} for map", cursor)
}
switch buf[cursor] {
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
**(**unsafe.Pointer)(unsafe.Pointer(&p)) = nil
return cursor, nil
case '{':
default:
return 0, errors.ErrExpected("{ character for map value", cursor)
}
cursor++
cursor = skipWhiteSpace(buf, cursor)
mapValue := *(*unsafe.Pointer)(p)
if mapValue == nil {
mapValue = makemap(d.mapType, 0)
}
if buf[cursor] == '}' {
**(**unsafe.Pointer)(unsafe.Pointer(&p)) = mapValue
cursor++
return cursor, nil
}
for {
k := unsafe_New(d.keyType)
keyCursor, err := d.keyDecoder.Decode(ctx, cursor, depth, k)
if err != nil {
return 0, err
}
cursor = skipWhiteSpace(buf, keyCursor)
if buf[cursor] != ':' {
return 0, errors.ErrExpected("colon after object key", cursor)
}
cursor++
v := unsafe_New(d.valueType)
valueCursor, err := d.valueDecoder.Decode(ctx, cursor, depth, v)
if err != nil {
return 0, err
}
d.mapassign(d.mapType, mapValue, k, v)
cursor = skipWhiteSpace(buf, valueCursor)
if buf[cursor] == '}' {
**(**unsafe.Pointer)(unsafe.Pointer(&p)) = mapValue
cursor++
return cursor, nil
}
if buf[cursor] != ',' {
return 0, errors.ErrExpected("comma after object value", cursor)
}
cursor++
}
}

View file

@ -0,0 +1,108 @@
package decoder
import (
"encoding/json"
"strconv"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type numberDecoder struct {
stringDecoder *stringDecoder
op func(unsafe.Pointer, json.Number)
structName string
fieldName string
}
func newNumberDecoder(structName, fieldName string, op func(unsafe.Pointer, json.Number)) *numberDecoder {
return &numberDecoder{
stringDecoder: newStringDecoder(structName, fieldName),
op: op,
structName: structName,
fieldName: fieldName,
}
}
func (d *numberDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if _, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&bytes)), 64); err != nil {
return errors.ErrSyntax(err.Error(), s.totalOffset())
}
d.op(p, json.Number(string(bytes)))
s.reset()
return nil
}
func (d *numberDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if _, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&bytes)), 64); err != nil {
return 0, errors.ErrSyntax(err.Error(), c)
}
cursor = c
s := *(*string)(unsafe.Pointer(&bytes))
d.op(p, json.Number(s))
return cursor, nil
}
func (d *numberDecoder) decodeStreamByte(s *Stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return floatBytes(s), nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case '"':
return d.stringDecoder.decodeStreamByte(s)
case nul:
if s.read() {
continue
}
goto ERROR
default:
goto ERROR
}
}
ERROR:
return nil, errors.ErrUnexpectedEndOfJSON("json.Number", s.totalOffset())
}
func (d *numberDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
continue
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := cursor
cursor++
for floatTable[buf[cursor]] {
cursor++
}
num := buf[start:cursor]
return num, cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
case '"':
return d.stringDecoder.decodeByte(buf, cursor)
default:
return nil, 0, errors.ErrUnexpectedEndOfJSON("json.Number", cursor)
}
}
}

View file

@ -0,0 +1,15 @@
package decoder
import "context"
type OptionFlags uint8
const (
FirstWinOption OptionFlags = 1 << iota
ContextOption
)
type Option struct {
Flags OptionFlags
Context context.Context
}

View file

@ -0,0 +1,87 @@
package decoder
import (
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
type ptrDecoder struct {
dec Decoder
typ *runtime.Type
structName string
fieldName string
}
func newPtrDecoder(dec Decoder, typ *runtime.Type, structName, fieldName string) *ptrDecoder {
return &ptrDecoder{
dec: dec,
typ: typ,
structName: structName,
fieldName: fieldName,
}
}
func (d *ptrDecoder) contentDecoder() Decoder {
dec, ok := d.dec.(*ptrDecoder)
if !ok {
return d.dec
}
return dec.contentDecoder()
}
//nolint:golint
//go:linkname unsafe_New reflect.unsafe_New
func unsafe_New(*runtime.Type) unsafe.Pointer
func (d *ptrDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
if s.skipWhiteSpace() == nul {
s.read()
}
if s.char() == 'n' {
if err := nullBytes(s); err != nil {
return err
}
*(*unsafe.Pointer)(p) = nil
return nil
}
var newptr unsafe.Pointer
if *(*unsafe.Pointer)(p) == nil {
newptr = unsafe_New(d.typ)
*(*unsafe.Pointer)(p) = newptr
} else {
newptr = *(*unsafe.Pointer)(p)
}
if err := d.dec.DecodeStream(s, depth, newptr); err != nil {
return err
}
return nil
}
func (d *ptrDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == 'n' {
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
if p != nil {
*(*unsafe.Pointer)(p) = nil
}
cursor += 4
return cursor, nil
}
var newptr unsafe.Pointer
if *(*unsafe.Pointer)(p) == nil {
newptr = unsafe_New(d.typ)
*(*unsafe.Pointer)(p) = newptr
} else {
newptr = *(*unsafe.Pointer)(p)
}
c, err := d.dec.Decode(ctx, cursor, depth, newptr)
if err != nil {
return 0, err
}
cursor = c
return cursor, nil
}

View file

@ -0,0 +1,294 @@
package decoder
import (
"reflect"
"sync"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type sliceDecoder struct {
elemType *runtime.Type
isElemPointerType bool
valueDecoder Decoder
size uintptr
arrayPool sync.Pool
structName string
fieldName string
}
// If use reflect.SliceHeader, data type is uintptr.
// In this case, Go compiler cannot trace reference created by newArray().
// So, define using unsafe.Pointer as data type
type sliceHeader struct {
data unsafe.Pointer
len int
cap int
}
const (
defaultSliceCapacity = 2
)
func newSliceDecoder(dec Decoder, elemType *runtime.Type, size uintptr, structName, fieldName string) *sliceDecoder {
return &sliceDecoder{
valueDecoder: dec,
elemType: elemType,
isElemPointerType: elemType.Kind() == reflect.Ptr || elemType.Kind() == reflect.Map,
size: size,
arrayPool: sync.Pool{
New: func() interface{} {
return &sliceHeader{
data: newArray(elemType, defaultSliceCapacity),
len: 0,
cap: defaultSliceCapacity,
}
},
},
structName: structName,
fieldName: fieldName,
}
}
func (d *sliceDecoder) newSlice(src *sliceHeader) *sliceHeader {
slice := d.arrayPool.Get().(*sliceHeader)
if src.len > 0 {
// copy original elem
if slice.cap < src.cap {
data := newArray(d.elemType, src.cap)
slice = &sliceHeader{data: data, len: src.len, cap: src.cap}
} else {
slice.len = src.len
}
copySlice(d.elemType, *slice, *src)
} else {
slice.len = 0
}
return slice
}
func (d *sliceDecoder) releaseSlice(p *sliceHeader) {
d.arrayPool.Put(p)
}
//go:linkname copySlice reflect.typedslicecopy
func copySlice(elemType *runtime.Type, dst, src sliceHeader) int
//go:linkname newArray reflect.unsafe_NewArray
func newArray(*runtime.Type, int) unsafe.Pointer
//go:linkname typedmemmove reflect.typedmemmove
func typedmemmove(t *runtime.Type, dst, src unsafe.Pointer)
func (d *sliceDecoder) errNumber(offset int64) *errors.UnmarshalTypeError {
return &errors.UnmarshalTypeError{
Value: "number",
Type: reflect.SliceOf(runtime.RType2Type(d.elemType)),
Struct: d.structName,
Field: d.fieldName,
Offset: offset,
}
}
func (d *sliceDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case 'n':
if err := nullBytes(s); err != nil {
return err
}
*(*unsafe.Pointer)(p) = nil
return nil
case '[':
s.cursor++
if s.skipWhiteSpace() == ']' {
dst := (*sliceHeader)(p)
if dst.data == nil {
dst.data = newArray(d.elemType, 0)
} else {
dst.len = 0
}
s.cursor++
return nil
}
idx := 0
slice := d.newSlice((*sliceHeader)(p))
srcLen := slice.len
capacity := slice.cap
data := slice.data
for {
if capacity <= idx {
src := sliceHeader{data: data, len: idx, cap: capacity}
capacity *= 2
data = newArray(d.elemType, capacity)
dst := sliceHeader{data: data, len: idx, cap: capacity}
copySlice(d.elemType, dst, src)
}
ep := unsafe.Pointer(uintptr(data) + uintptr(idx)*d.size)
// if srcLen is greater than idx, keep the original reference
if srcLen <= idx {
if d.isElemPointerType {
**(**unsafe.Pointer)(unsafe.Pointer(&ep)) = nil // initialize elem pointer
} else {
// assign new element to the slice
typedmemmove(d.elemType, ep, unsafe_New(d.elemType))
}
}
if err := d.valueDecoder.DecodeStream(s, depth, ep); err != nil {
return err
}
s.skipWhiteSpace()
RETRY:
switch s.char() {
case ']':
slice.cap = capacity
slice.len = idx + 1
slice.data = data
dst := (*sliceHeader)(p)
dst.len = idx + 1
if dst.len > dst.cap {
dst.data = newArray(d.elemType, dst.len)
dst.cap = dst.len
}
copySlice(d.elemType, *dst, *slice)
d.releaseSlice(slice)
s.cursor++
return nil
case ',':
idx++
case nul:
if s.read() {
goto RETRY
}
slice.cap = capacity
slice.data = data
d.releaseSlice(slice)
goto ERROR
default:
slice.cap = capacity
slice.data = data
d.releaseSlice(slice)
goto ERROR
}
s.cursor++
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return d.errNumber(s.totalOffset())
case nul:
if s.read() {
continue
}
goto ERROR
default:
goto ERROR
}
}
ERROR:
return errors.ErrUnexpectedEndOfJSON("slice", s.totalOffset())
}
func (d *sliceDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
continue
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
*(*unsafe.Pointer)(p) = nil
return cursor, nil
case '[':
cursor++
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == ']' {
dst := (*sliceHeader)(p)
if dst.data == nil {
dst.data = newArray(d.elemType, 0)
} else {
dst.len = 0
}
cursor++
return cursor, nil
}
idx := 0
slice := d.newSlice((*sliceHeader)(p))
srcLen := slice.len
capacity := slice.cap
data := slice.data
for {
if capacity <= idx {
src := sliceHeader{data: data, len: idx, cap: capacity}
capacity *= 2
data = newArray(d.elemType, capacity)
dst := sliceHeader{data: data, len: idx, cap: capacity}
copySlice(d.elemType, dst, src)
}
ep := unsafe.Pointer(uintptr(data) + uintptr(idx)*d.size)
// if srcLen is greater than idx, keep the original reference
if srcLen <= idx {
if d.isElemPointerType {
**(**unsafe.Pointer)(unsafe.Pointer(&ep)) = nil // initialize elem pointer
} else {
// assign new element to the slice
typedmemmove(d.elemType, ep, unsafe_New(d.elemType))
}
}
c, err := d.valueDecoder.Decode(ctx, cursor, depth, ep)
if err != nil {
return 0, err
}
cursor = c
cursor = skipWhiteSpace(buf, cursor)
switch buf[cursor] {
case ']':
slice.cap = capacity
slice.len = idx + 1
slice.data = data
dst := (*sliceHeader)(p)
dst.len = idx + 1
if dst.len > dst.cap {
dst.data = newArray(d.elemType, dst.len)
dst.cap = dst.len
}
copySlice(d.elemType, *dst, *slice)
d.releaseSlice(slice)
cursor++
return cursor, nil
case ',':
idx++
default:
slice.cap = capacity
slice.data = data
d.releaseSlice(slice)
return 0, errors.ErrInvalidCharacter(buf[cursor], "slice", cursor)
}
cursor++
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return 0, d.errNumber(cursor)
default:
return 0, errors.ErrUnexpectedEndOfJSON("slice", cursor)
}
}
}

View file

@ -0,0 +1,554 @@
package decoder
import (
"bytes"
"encoding/json"
"io"
"strconv"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
const (
initBufSize = 512
)
type Stream struct {
buf []byte
bufSize int64
length int64
r io.Reader
offset int64
cursor int64
filledBuffer bool
allRead bool
UseNumber bool
DisallowUnknownFields bool
Option *Option
}
func NewStream(r io.Reader) *Stream {
return &Stream{
r: r,
bufSize: initBufSize,
buf: make([]byte, initBufSize),
Option: &Option{},
}
}
func (s *Stream) TotalOffset() int64 {
return s.totalOffset()
}
func (s *Stream) Buffered() io.Reader {
buflen := int64(len(s.buf))
for i := s.cursor; i < buflen; i++ {
if s.buf[i] == nul {
return bytes.NewReader(s.buf[s.cursor:i])
}
}
return bytes.NewReader(s.buf[s.cursor:])
}
func (s *Stream) PrepareForDecode() error {
for {
switch s.char() {
case ' ', '\t', '\r', '\n':
s.cursor++
continue
case ',', ':':
s.cursor++
return nil
case nul:
if s.read() {
continue
}
return io.EOF
}
break
}
return nil
}
func (s *Stream) totalOffset() int64 {
return s.offset + s.cursor
}
func (s *Stream) char() byte {
return s.buf[s.cursor]
}
func (s *Stream) equalChar(c byte) bool {
cur := s.buf[s.cursor]
if cur == nul {
s.read()
cur = s.buf[s.cursor]
}
return cur == c
}
func (s *Stream) stat() ([]byte, int64, unsafe.Pointer) {
return s.buf, s.cursor, (*sliceHeader)(unsafe.Pointer(&s.buf)).data
}
func (s *Stream) bufptr() unsafe.Pointer {
return (*sliceHeader)(unsafe.Pointer(&s.buf)).data
}
func (s *Stream) statForRetry() ([]byte, int64, unsafe.Pointer) {
s.cursor-- // for retry ( because caller progress cursor position in each loop )
return s.buf, s.cursor, (*sliceHeader)(unsafe.Pointer(&s.buf)).data
}
func (s *Stream) Reset() {
s.reset()
s.bufSize = initBufSize
}
func (s *Stream) More() bool {
for {
switch s.char() {
case ' ', '\n', '\r', '\t':
s.cursor++
continue
case '}', ']':
return false
case nul:
if s.read() {
continue
}
return false
}
break
}
return true
}
func (s *Stream) Token() (interface{}, error) {
for {
c := s.char()
switch c {
case ' ', '\n', '\r', '\t':
s.cursor++
case '{', '[', ']', '}':
s.cursor++
return json.Delim(c), nil
case ',', ':':
s.cursor++
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
bytes := floatBytes(s)
s := *(*string)(unsafe.Pointer(&bytes))
f64, err := strconv.ParseFloat(s, 64)
if err != nil {
return nil, err
}
return f64, nil
case '"':
bytes, err := stringBytes(s)
if err != nil {
return nil, err
}
return string(bytes), nil
case 't':
if err := trueBytes(s); err != nil {
return nil, err
}
return true, nil
case 'f':
if err := falseBytes(s); err != nil {
return nil, err
}
return false, nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
goto END
default:
return nil, errors.ErrInvalidCharacter(s.char(), "token", s.totalOffset())
}
}
END:
return nil, io.EOF
}
func (s *Stream) reset() {
s.offset += s.cursor
s.buf = s.buf[s.cursor:]
s.length -= s.cursor
s.cursor = 0
}
func (s *Stream) readBuf() []byte {
if s.filledBuffer {
s.bufSize *= 2
remainBuf := s.buf
s.buf = make([]byte, s.bufSize)
copy(s.buf, remainBuf)
}
remainLen := s.length - s.cursor
remainNotNulCharNum := int64(0)
for i := int64(0); i < remainLen; i++ {
if s.buf[s.cursor+i] == nul {
break
}
remainNotNulCharNum++
}
s.length = s.cursor + remainNotNulCharNum
return s.buf[s.cursor+remainNotNulCharNum:]
}
func (s *Stream) read() bool {
if s.allRead {
return false
}
buf := s.readBuf()
last := len(buf) - 1
buf[last] = nul
n, err := s.r.Read(buf[:last])
s.length += int64(n)
if n == last {
s.filledBuffer = true
} else {
s.filledBuffer = false
}
if err == io.EOF {
s.allRead = true
} else if err != nil {
return false
}
return true
}
func (s *Stream) skipWhiteSpace() byte {
p := s.bufptr()
LOOP:
c := char(p, s.cursor)
switch c {
case ' ', '\n', '\t', '\r':
s.cursor++
goto LOOP
case nul:
if s.read() {
p = s.bufptr()
goto LOOP
}
}
return c
}
func (s *Stream) skipObject(depth int64) error {
braceCount := 1
_, cursor, p := s.stat()
for {
switch char(p, cursor) {
case '{':
braceCount++
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
case '}':
braceCount--
depth--
if braceCount == 0 {
s.cursor = cursor + 1
return nil
}
case '[':
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
case ']':
depth--
case '"':
for {
cursor++
switch char(p, cursor) {
case '\\':
cursor++
if char(p, cursor) == nul {
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
case '"':
goto SWITCH_OUT
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
}
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return errors.ErrUnexpectedEndOfJSON("object of object", cursor)
}
SWITCH_OUT:
cursor++
}
}
func (s *Stream) skipArray(depth int64) error {
bracketCount := 1
_, cursor, p := s.stat()
for {
switch char(p, cursor) {
case '[':
bracketCount++
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
case ']':
bracketCount--
depth--
if bracketCount == 0 {
s.cursor = cursor + 1
return nil
}
case '{':
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
case '}':
depth--
case '"':
for {
cursor++
switch char(p, cursor) {
case '\\':
cursor++
if char(p, cursor) == nul {
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
case '"':
goto SWITCH_OUT
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("string of object", cursor)
}
}
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return errors.ErrUnexpectedEndOfJSON("array of object", cursor)
}
SWITCH_OUT:
cursor++
}
}
func (s *Stream) skipValue(depth int64) error {
_, cursor, p := s.stat()
for {
switch char(p, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
continue
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return errors.ErrUnexpectedEndOfJSON("value of object", s.totalOffset())
case '{':
s.cursor = cursor + 1
return s.skipObject(depth + 1)
case '[':
s.cursor = cursor + 1
return s.skipArray(depth + 1)
case '"':
for {
cursor++
switch char(p, cursor) {
case '\\':
cursor++
if char(p, cursor) == nul {
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("value of string", s.totalOffset())
}
case '"':
s.cursor = cursor + 1
return nil
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.statForRetry()
continue
}
return errors.ErrUnexpectedEndOfJSON("value of string", s.totalOffset())
}
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
for {
cursor++
c := char(p, cursor)
if floatTable[c] {
continue
} else if c == nul {
if s.read() {
s.cursor-- // for retry current character
_, cursor, p = s.stat()
continue
}
}
s.cursor = cursor
return nil
}
case 't':
s.cursor = cursor
if err := trueBytes(s); err != nil {
return err
}
return nil
case 'f':
s.cursor = cursor
if err := falseBytes(s); err != nil {
return err
}
return nil
case 'n':
s.cursor = cursor
if err := nullBytes(s); err != nil {
return err
}
return nil
}
cursor++
}
}
func nullBytes(s *Stream) error {
// current cursor's character is 'n'
s.cursor++
if s.char() != 'u' {
if err := retryReadNull(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'l' {
if err := retryReadNull(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'l' {
if err := retryReadNull(s); err != nil {
return err
}
}
s.cursor++
return nil
}
func retryReadNull(s *Stream) error {
if s.char() == nul && s.read() {
return nil
}
return errors.ErrInvalidCharacter(s.char(), "null", s.totalOffset())
}
func trueBytes(s *Stream) error {
// current cursor's character is 't'
s.cursor++
if s.char() != 'r' {
if err := retryReadTrue(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'u' {
if err := retryReadTrue(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'e' {
if err := retryReadTrue(s); err != nil {
return err
}
}
s.cursor++
return nil
}
func retryReadTrue(s *Stream) error {
if s.char() == nul && s.read() {
return nil
}
return errors.ErrInvalidCharacter(s.char(), "bool(true)", s.totalOffset())
}
func falseBytes(s *Stream) error {
// current cursor's character is 'f'
s.cursor++
if s.char() != 'a' {
if err := retryReadFalse(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'l' {
if err := retryReadFalse(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 's' {
if err := retryReadFalse(s); err != nil {
return err
}
}
s.cursor++
if s.char() != 'e' {
if err := retryReadFalse(s); err != nil {
return err
}
}
s.cursor++
return nil
}
func retryReadFalse(s *Stream) error {
if s.char() == nul && s.read() {
return nil
}
return errors.ErrInvalidCharacter(s.char(), "bool(false)", s.totalOffset())
}

View file

@ -0,0 +1,361 @@
package decoder
import (
"reflect"
"unicode"
"unicode/utf16"
"unicode/utf8"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type stringDecoder struct {
structName string
fieldName string
}
func newStringDecoder(structName, fieldName string) *stringDecoder {
return &stringDecoder{
structName: structName,
fieldName: fieldName,
}
}
func (d *stringDecoder) errUnmarshalType(typeName string, offset int64) *errors.UnmarshalTypeError {
return &errors.UnmarshalTypeError{
Value: typeName,
Type: reflect.TypeOf(""),
Offset: offset,
Struct: d.structName,
Field: d.fieldName,
}
}
func (d *stringDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
return nil
}
**(**string)(unsafe.Pointer(&p)) = *(*string)(unsafe.Pointer(&bytes))
s.reset()
return nil
}
func (d *stringDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
return c, nil
}
cursor = c
**(**string)(unsafe.Pointer(&p)) = *(*string)(unsafe.Pointer(&bytes))
return cursor, nil
}
var (
hexToInt = [256]int{
'0': 0,
'1': 1,
'2': 2,
'3': 3,
'4': 4,
'5': 5,
'6': 6,
'7': 7,
'8': 8,
'9': 9,
'A': 10,
'B': 11,
'C': 12,
'D': 13,
'E': 14,
'F': 15,
'a': 10,
'b': 11,
'c': 12,
'd': 13,
'e': 14,
'f': 15,
}
)
func unicodeToRune(code []byte) rune {
var r rune
for i := 0; i < len(code); i++ {
r = r*16 + rune(hexToInt[code[i]])
}
return r
}
func decodeUnicodeRune(s *Stream, p unsafe.Pointer) (rune, int64, unsafe.Pointer, error) {
const defaultOffset = 5
const surrogateOffset = 11
if s.cursor+defaultOffset >= s.length {
if !s.read() {
return rune(0), 0, nil, errors.ErrInvalidCharacter(s.char(), "escaped string", s.totalOffset())
}
p = s.bufptr()
}
r := unicodeToRune(s.buf[s.cursor+1 : s.cursor+defaultOffset])
if utf16.IsSurrogate(r) {
if s.cursor+surrogateOffset >= s.length {
s.read()
p = s.bufptr()
}
if s.cursor+surrogateOffset >= s.length || s.buf[s.cursor+defaultOffset] != '\\' || s.buf[s.cursor+defaultOffset+1] != 'u' {
return unicode.ReplacementChar, defaultOffset, p, nil
}
r2 := unicodeToRune(s.buf[s.cursor+defaultOffset+2 : s.cursor+surrogateOffset])
if r := utf16.DecodeRune(r, r2); r != unicode.ReplacementChar {
return r, surrogateOffset, p, nil
}
}
return r, defaultOffset, p, nil
}
func decodeUnicode(s *Stream, p unsafe.Pointer) (unsafe.Pointer, error) {
const backSlashAndULen = 2 // length of \u
r, offset, pp, err := decodeUnicodeRune(s, p)
if err != nil {
return nil, err
}
unicode := []byte(string(r))
unicodeLen := int64(len(unicode))
s.buf = append(append(s.buf[:s.cursor-1], unicode...), s.buf[s.cursor+offset:]...)
unicodeOrgLen := offset - 1
s.length = s.length - (backSlashAndULen + (unicodeOrgLen - unicodeLen))
s.cursor = s.cursor - backSlashAndULen + unicodeLen
return pp, nil
}
func decodeEscapeString(s *Stream, p unsafe.Pointer) (unsafe.Pointer, error) {
s.cursor++
RETRY:
switch s.buf[s.cursor] {
case '"':
s.buf[s.cursor] = '"'
case '\\':
s.buf[s.cursor] = '\\'
case '/':
s.buf[s.cursor] = '/'
case 'b':
s.buf[s.cursor] = '\b'
case 'f':
s.buf[s.cursor] = '\f'
case 'n':
s.buf[s.cursor] = '\n'
case 'r':
s.buf[s.cursor] = '\r'
case 't':
s.buf[s.cursor] = '\t'
case 'u':
return decodeUnicode(s, p)
case nul:
if !s.read() {
return nil, errors.ErrInvalidCharacter(s.char(), "escaped string", s.totalOffset())
}
goto RETRY
default:
return nil, errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
s.buf = append(s.buf[:s.cursor-1], s.buf[s.cursor:]...)
s.length--
s.cursor--
return p, nil
}
var (
runeErrBytes = []byte(string(utf8.RuneError))
runeErrBytesLen = int64(len(runeErrBytes))
)
func stringBytes(s *Stream) ([]byte, error) {
_, cursor, p := s.stat()
cursor++ // skip double quote char
start := cursor
for {
switch char(p, cursor) {
case '\\':
s.cursor = cursor
pp, err := decodeEscapeString(s, p)
if err != nil {
return nil, err
}
p = pp
cursor = s.cursor
case '"':
literal := s.buf[start:cursor]
cursor++
s.cursor = cursor
return literal, nil
case
// 0x00 is nul, 0x5c is '\\', 0x22 is '"' .
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, // 0x00-0x0F
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, // 0x10-0x1F
0x20, 0x21 /*0x22,*/, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, // 0x20-0x2F
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, // 0x30-0x3F
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, // 0x40-0x4F
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B /*0x5C,*/, 0x5D, 0x5E, 0x5F, // 0x50-0x5F
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, // 0x60-0x6F
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F: // 0x70-0x7F
// character is ASCII. skip to next char
case
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, // 0x80-0x8F
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, // 0x90-0x9F
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, // 0xA0-0xAF
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, // 0xB0-0xBF
0xC0, 0xC1, // 0xC0-0xC1
0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF: // 0xF5-0xFE
// character is invalid
s.buf = append(append(append([]byte{}, s.buf[:cursor]...), runeErrBytes...), s.buf[cursor+1:]...)
_, _, p = s.stat()
cursor += runeErrBytesLen
s.length += runeErrBytesLen
continue
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
goto ERROR
case 0xEF:
// RuneError is {0xEF, 0xBF, 0xBD}
if s.buf[cursor+1] == 0xBF && s.buf[cursor+2] == 0xBD {
// found RuneError: skip
cursor += 2
break
}
fallthrough
default:
// multi bytes character
r, _ := utf8.DecodeRune(s.buf[cursor:])
b := []byte(string(r))
if r == utf8.RuneError {
s.buf = append(append(append([]byte{}, s.buf[:cursor]...), b...), s.buf[cursor+1:]...)
_, _, p = s.stat()
}
cursor += int64(len(b))
s.length += int64(len(b))
continue
}
cursor++
}
ERROR:
return nil, errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
func (d *stringDecoder) decodeStreamByte(s *Stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '[':
return nil, d.errUnmarshalType("array", s.totalOffset())
case '{':
return nil, d.errUnmarshalType("object", s.totalOffset())
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return nil, d.errUnmarshalType("number", s.totalOffset())
case '"':
return stringBytes(s)
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
}
break
}
return nil, errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
func (d *stringDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
case '[':
return nil, 0, d.errUnmarshalType("array", cursor)
case '{':
return nil, 0, d.errUnmarshalType("object", cursor)
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return nil, 0, d.errUnmarshalType("number", cursor)
case '"':
cursor++
start := cursor
b := (*sliceHeader)(unsafe.Pointer(&buf)).data
for {
switch char(b, cursor) {
case '\\':
cursor++
switch char(b, cursor) {
case '"':
buf[cursor] = '"'
buf = append(buf[:cursor-1], buf[cursor:]...)
case '\\':
buf[cursor] = '\\'
buf = append(buf[:cursor-1], buf[cursor:]...)
case '/':
buf[cursor] = '/'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 'b':
buf[cursor] = '\b'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 'f':
buf[cursor] = '\f'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 'n':
buf[cursor] = '\n'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 'r':
buf[cursor] = '\r'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 't':
buf[cursor] = '\t'
buf = append(buf[:cursor-1], buf[cursor:]...)
case 'u':
buflen := int64(len(buf))
if cursor+5 >= buflen {
return nil, 0, errors.ErrUnexpectedEndOfJSON("escaped string", cursor)
}
code := unicodeToRune(buf[cursor+1 : cursor+5])
unicode := []byte(string(code))
buf = append(append(buf[:cursor-1], unicode...), buf[cursor+5:]...)
default:
return nil, 0, errors.ErrUnexpectedEndOfJSON("escaped string", cursor)
}
continue
case '"':
literal := buf[start:cursor]
cursor++
return literal, cursor, nil
case nul:
return nil, 0, errors.ErrUnexpectedEndOfJSON("string", cursor)
}
cursor++
}
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
default:
return nil, 0, errors.ErrNotAtBeginningOfValue(cursor)
}
}
}

View file

@ -0,0 +1,819 @@
package decoder
import (
"fmt"
"math"
"math/bits"
"sort"
"strings"
"unicode"
"unicode/utf16"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
type structFieldSet struct {
dec Decoder
offset uintptr
isTaggedKey bool
fieldIdx int
key string
keyLen int64
err error
}
type structDecoder struct {
fieldMap map[string]*structFieldSet
fieldUniqueNameNum int
stringDecoder *stringDecoder
structName string
fieldName string
isTriedOptimize bool
keyBitmapUint8 [][256]uint8
keyBitmapUint16 [][256]uint16
sortedFieldSets []*structFieldSet
keyDecoder func(*structDecoder, []byte, int64) (int64, *structFieldSet, error)
keyStreamDecoder func(*structDecoder, *Stream) (*structFieldSet, string, error)
}
var (
largeToSmallTable [256]byte
)
func init() {
for i := 0; i < 256; i++ {
c := i
if 'A' <= c && c <= 'Z' {
c += 'a' - 'A'
}
largeToSmallTable[i] = byte(c)
}
}
func newStructDecoder(structName, fieldName string, fieldMap map[string]*structFieldSet) *structDecoder {
return &structDecoder{
fieldMap: fieldMap,
stringDecoder: newStringDecoder(structName, fieldName),
structName: structName,
fieldName: fieldName,
keyDecoder: decodeKey,
keyStreamDecoder: decodeKeyStream,
}
}
const (
allowOptimizeMaxKeyLen = 64
allowOptimizeMaxFieldLen = 16
)
func (d *structDecoder) tryOptimize() {
fieldUniqueNameMap := map[string]int{}
fieldIdx := -1
for k, v := range d.fieldMap {
lower := strings.ToLower(k)
idx, exists := fieldUniqueNameMap[lower]
if exists {
v.fieldIdx = idx
} else {
fieldIdx++
v.fieldIdx = fieldIdx
}
fieldUniqueNameMap[lower] = fieldIdx
}
d.fieldUniqueNameNum = len(fieldUniqueNameMap)
if d.isTriedOptimize {
return
}
fieldMap := map[string]*structFieldSet{}
conflicted := map[string]struct{}{}
for k, v := range d.fieldMap {
key := strings.ToLower(k)
if key != k {
// already exists same key (e.g. Hello and HELLO has same lower case key
if _, exists := conflicted[key]; exists {
d.isTriedOptimize = true
return
}
conflicted[key] = struct{}{}
}
if field, exists := fieldMap[key]; exists {
if field != v {
d.isTriedOptimize = true
return
}
}
fieldMap[key] = v
}
if len(fieldMap) > allowOptimizeMaxFieldLen {
d.isTriedOptimize = true
return
}
var maxKeyLen int
sortedKeys := []string{}
for key := range fieldMap {
keyLen := len(key)
if keyLen > allowOptimizeMaxKeyLen {
d.isTriedOptimize = true
return
}
if maxKeyLen < keyLen {
maxKeyLen = keyLen
}
sortedKeys = append(sortedKeys, key)
}
sort.Strings(sortedKeys)
// By allocating one extra capacity than `maxKeyLen`,
// it is possible to avoid the process of comparing the index of the key with the length of the bitmap each time.
bitmapLen := maxKeyLen + 1
if len(sortedKeys) <= 8 {
keyBitmap := make([][256]uint8, bitmapLen)
for i, key := range sortedKeys {
for j := 0; j < len(key); j++ {
c := key[j]
keyBitmap[j][c] |= (1 << uint(i))
}
d.sortedFieldSets = append(d.sortedFieldSets, fieldMap[key])
}
d.keyBitmapUint8 = keyBitmap
d.keyDecoder = decodeKeyByBitmapUint8
d.keyStreamDecoder = decodeKeyByBitmapUint8Stream
} else {
keyBitmap := make([][256]uint16, bitmapLen)
for i, key := range sortedKeys {
for j := 0; j < len(key); j++ {
c := key[j]
keyBitmap[j][c] |= (1 << uint(i))
}
d.sortedFieldSets = append(d.sortedFieldSets, fieldMap[key])
}
d.keyBitmapUint16 = keyBitmap
d.keyDecoder = decodeKeyByBitmapUint16
d.keyStreamDecoder = decodeKeyByBitmapUint16Stream
}
}
// decode from '\uXXXX'
func decodeKeyCharByUnicodeRune(buf []byte, cursor int64) ([]byte, int64) {
const defaultOffset = 4
const surrogateOffset = 6
r := unicodeToRune(buf[cursor : cursor+defaultOffset])
if utf16.IsSurrogate(r) {
cursor += defaultOffset
if cursor+surrogateOffset >= int64(len(buf)) || buf[cursor] != '\\' || buf[cursor+1] != 'u' {
return []byte(string(unicode.ReplacementChar)), cursor + defaultOffset - 1
}
cursor += 2
r2 := unicodeToRune(buf[cursor : cursor+defaultOffset])
if r := utf16.DecodeRune(r, r2); r != unicode.ReplacementChar {
return []byte(string(r)), cursor + defaultOffset - 1
}
}
return []byte(string(r)), cursor + defaultOffset - 1
}
func decodeKeyCharByEscapedChar(buf []byte, cursor int64) ([]byte, int64) {
c := buf[cursor]
cursor++
switch c {
case '"':
return []byte{'"'}, cursor
case '\\':
return []byte{'\\'}, cursor
case '/':
return []byte{'/'}, cursor
case 'b':
return []byte{'\b'}, cursor
case 'f':
return []byte{'\f'}, cursor
case 'n':
return []byte{'\n'}, cursor
case 'r':
return []byte{'\r'}, cursor
case 't':
return []byte{'\t'}, cursor
case 'u':
return decodeKeyCharByUnicodeRune(buf, cursor)
}
return nil, cursor
}
func decodeKeyByBitmapUint8(d *structDecoder, buf []byte, cursor int64) (int64, *structFieldSet, error) {
var (
curBit uint8 = math.MaxUint8
)
b := (*sliceHeader)(unsafe.Pointer(&buf)).data
for {
switch char(b, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
case '"':
cursor++
c := char(b, cursor)
switch c {
case '"':
cursor++
return cursor, nil, nil
case nul:
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
}
keyIdx := 0
bitmap := d.keyBitmapUint8
start := cursor
for {
c := char(b, cursor)
switch c {
case '"':
fieldSetIndex := bits.TrailingZeros8(curBit)
field := d.sortedFieldSets[fieldSetIndex]
keyLen := cursor - start
cursor++
if keyLen < field.keyLen {
// early match
return cursor, nil, nil
}
return cursor, field, nil
case nul:
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
case '\\':
cursor++
chars, nextCursor := decodeKeyCharByEscapedChar(buf, cursor)
for _, c := range chars {
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
return decodeKeyNotFound(b, cursor)
}
keyIdx++
}
cursor = nextCursor
default:
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
return decodeKeyNotFound(b, cursor)
}
keyIdx++
}
cursor++
}
default:
return cursor, nil, errors.ErrNotAtBeginningOfValue(cursor)
}
}
}
func decodeKeyByBitmapUint16(d *structDecoder, buf []byte, cursor int64) (int64, *structFieldSet, error) {
var (
curBit uint16 = math.MaxUint16
)
b := (*sliceHeader)(unsafe.Pointer(&buf)).data
for {
switch char(b, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
case '"':
cursor++
c := char(b, cursor)
switch c {
case '"':
cursor++
return cursor, nil, nil
case nul:
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
}
keyIdx := 0
bitmap := d.keyBitmapUint16
start := cursor
for {
c := char(b, cursor)
switch c {
case '"':
fieldSetIndex := bits.TrailingZeros16(curBit)
field := d.sortedFieldSets[fieldSetIndex]
keyLen := cursor - start
cursor++
if keyLen < field.keyLen {
// early match
return cursor, nil, nil
}
return cursor, field, nil
case nul:
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
case '\\':
cursor++
chars, nextCursor := decodeKeyCharByEscapedChar(buf, cursor)
for _, c := range chars {
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
return decodeKeyNotFound(b, cursor)
}
keyIdx++
}
cursor = nextCursor
default:
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
return decodeKeyNotFound(b, cursor)
}
keyIdx++
}
cursor++
}
default:
return cursor, nil, errors.ErrNotAtBeginningOfValue(cursor)
}
}
}
func decodeKeyNotFound(b unsafe.Pointer, cursor int64) (int64, *structFieldSet, error) {
for {
cursor++
switch char(b, cursor) {
case '"':
cursor++
return cursor, nil, nil
case '\\':
cursor++
if char(b, cursor) == nul {
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
}
case nul:
return 0, nil, errors.ErrUnexpectedEndOfJSON("string", cursor)
}
}
}
func decodeKey(d *structDecoder, buf []byte, cursor int64) (int64, *structFieldSet, error) {
key, c, err := d.stringDecoder.decodeByte(buf, cursor)
if err != nil {
return 0, nil, err
}
cursor = c
k := *(*string)(unsafe.Pointer(&key))
field, exists := d.fieldMap[k]
if !exists {
return cursor, nil, nil
}
return cursor, field, nil
}
func decodeKeyByBitmapUint8Stream(d *structDecoder, s *Stream) (*structFieldSet, string, error) {
var (
curBit uint8 = math.MaxUint8
)
_, cursor, p := s.stat()
for {
switch char(p, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return nil, "", errors.ErrNotAtBeginningOfValue(s.totalOffset())
case '"':
cursor++
FIRST_CHAR:
start := cursor
switch char(p, cursor) {
case '"':
cursor++
s.cursor = cursor
return nil, "", nil
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
goto FIRST_CHAR
}
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
keyIdx := 0
bitmap := d.keyBitmapUint8
for {
c := char(p, cursor)
switch c {
case '"':
fieldSetIndex := bits.TrailingZeros8(curBit)
field := d.sortedFieldSets[fieldSetIndex]
keyLen := cursor - start
cursor++
s.cursor = cursor
if keyLen < field.keyLen {
// early match
return nil, field.key, nil
}
return field, field.key, nil
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
case '\\':
s.cursor = cursor + 1 // skip '\' char
chars, err := decodeKeyCharByEscapeCharStream(s)
if err != nil {
return nil, "", err
}
cursor = s.cursor
for _, c := range chars {
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
s.cursor = cursor
return decodeKeyNotFoundStream(s, start)
}
keyIdx++
}
default:
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
s.cursor = cursor
return decodeKeyNotFoundStream(s, start)
}
keyIdx++
}
cursor++
}
default:
return nil, "", errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
}
}
func decodeKeyByBitmapUint16Stream(d *structDecoder, s *Stream) (*structFieldSet, string, error) {
var (
curBit uint16 = math.MaxUint16
)
_, cursor, p := s.stat()
for {
switch char(p, cursor) {
case ' ', '\n', '\t', '\r':
cursor++
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return nil, "", errors.ErrNotAtBeginningOfValue(s.totalOffset())
case '"':
cursor++
FIRST_CHAR:
start := cursor
switch char(p, cursor) {
case '"':
cursor++
s.cursor = cursor
return nil, "", nil
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
goto FIRST_CHAR
}
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
keyIdx := 0
bitmap := d.keyBitmapUint16
for {
c := char(p, cursor)
switch c {
case '"':
fieldSetIndex := bits.TrailingZeros16(curBit)
field := d.sortedFieldSets[fieldSetIndex]
keyLen := cursor - start
cursor++
s.cursor = cursor
if keyLen < field.keyLen {
// early match
return nil, field.key, nil
}
return field, field.key, nil
case nul:
s.cursor = cursor
if s.read() {
_, cursor, p = s.stat()
continue
}
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
case '\\':
s.cursor = cursor + 1 // skip '\' char
chars, err := decodeKeyCharByEscapeCharStream(s)
if err != nil {
return nil, "", err
}
cursor = s.cursor
for _, c := range chars {
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
s.cursor = cursor
return decodeKeyNotFoundStream(s, start)
}
keyIdx++
}
default:
curBit &= bitmap[keyIdx][largeToSmallTable[c]]
if curBit == 0 {
s.cursor = cursor
return decodeKeyNotFoundStream(s, start)
}
keyIdx++
}
cursor++
}
default:
return nil, "", errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
}
}
// decode from '\uXXXX'
func decodeKeyCharByUnicodeRuneStream(s *Stream) ([]byte, error) {
const defaultOffset = 4
const surrogateOffset = 6
if s.cursor+defaultOffset >= s.length {
if !s.read() {
return nil, errors.ErrInvalidCharacter(s.char(), "escaped unicode char", s.totalOffset())
}
}
r := unicodeToRune(s.buf[s.cursor : s.cursor+defaultOffset])
if utf16.IsSurrogate(r) {
s.cursor += defaultOffset
if s.cursor+surrogateOffset >= s.length {
s.read()
}
if s.cursor+surrogateOffset >= s.length || s.buf[s.cursor] != '\\' || s.buf[s.cursor+1] != 'u' {
s.cursor += defaultOffset - 1
return []byte(string(unicode.ReplacementChar)), nil
}
r2 := unicodeToRune(s.buf[s.cursor+defaultOffset+2 : s.cursor+surrogateOffset])
if r := utf16.DecodeRune(r, r2); r != unicode.ReplacementChar {
s.cursor += defaultOffset - 1
return []byte(string(r)), nil
}
}
s.cursor += defaultOffset - 1
return []byte(string(r)), nil
}
func decodeKeyCharByEscapeCharStream(s *Stream) ([]byte, error) {
c := s.buf[s.cursor]
s.cursor++
RETRY:
switch c {
case '"':
return []byte{'"'}, nil
case '\\':
return []byte{'\\'}, nil
case '/':
return []byte{'/'}, nil
case 'b':
return []byte{'\b'}, nil
case 'f':
return []byte{'\f'}, nil
case 'n':
return []byte{'\n'}, nil
case 'r':
return []byte{'\r'}, nil
case 't':
return []byte{'\t'}, nil
case 'u':
return decodeKeyCharByUnicodeRuneStream(s)
case nul:
if !s.read() {
return nil, errors.ErrInvalidCharacter(s.char(), "escaped char", s.totalOffset())
}
goto RETRY
default:
return nil, errors.ErrUnexpectedEndOfJSON("struct field", s.totalOffset())
}
}
func decodeKeyNotFoundStream(s *Stream, start int64) (*structFieldSet, string, error) {
buf, cursor, p := s.stat()
for {
cursor++
switch char(p, cursor) {
case '"':
b := buf[start:cursor]
key := *(*string)(unsafe.Pointer(&b))
cursor++
s.cursor = cursor
return nil, key, nil
case '\\':
cursor++
if char(p, cursor) == nul {
s.cursor = cursor
if !s.read() {
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
buf, cursor, p = s.statForRetry()
}
case nul:
s.cursor = cursor
if !s.read() {
return nil, "", errors.ErrUnexpectedEndOfJSON("string", s.totalOffset())
}
buf, cursor, p = s.statForRetry()
}
}
}
func decodeKeyStream(d *structDecoder, s *Stream) (*structFieldSet, string, error) {
key, err := d.stringDecoder.decodeStreamByte(s)
if err != nil {
return nil, "", err
}
k := *(*string)(unsafe.Pointer(&key))
return d.fieldMap[k], k, nil
}
func (d *structDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
depth++
if depth > maxDecodeNestingDepth {
return errors.ErrExceededMaxDepth(s.char(), s.cursor)
}
c := s.skipWhiteSpace()
switch c {
case 'n':
if err := nullBytes(s); err != nil {
return err
}
return nil
default:
if s.char() != '{' {
return errors.ErrNotAtBeginningOfValue(s.totalOffset())
}
}
s.cursor++
if s.skipWhiteSpace() == '}' {
s.cursor++
return nil
}
var (
seenFields map[int]struct{}
seenFieldNum int
)
firstWin := (s.Option.Flags & FirstWinOption) != 0
if firstWin {
seenFields = make(map[int]struct{}, d.fieldUniqueNameNum)
}
for {
s.reset()
field, key, err := d.keyStreamDecoder(d, s)
if err != nil {
return err
}
if s.skipWhiteSpace() != ':' {
return errors.ErrExpected("colon after object key", s.totalOffset())
}
s.cursor++
if field != nil {
if field.err != nil {
return field.err
}
if firstWin {
if _, exists := seenFields[field.fieldIdx]; exists {
if err := s.skipValue(depth); err != nil {
return err
}
} else {
if err := field.dec.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+field.offset)); err != nil {
return err
}
seenFieldNum++
if d.fieldUniqueNameNum <= seenFieldNum {
return s.skipObject(depth)
}
seenFields[field.fieldIdx] = struct{}{}
}
} else {
if err := field.dec.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+field.offset)); err != nil {
return err
}
}
} else if s.DisallowUnknownFields {
return fmt.Errorf("json: unknown field %q", key)
} else {
if err := s.skipValue(depth); err != nil {
return err
}
}
c := s.skipWhiteSpace()
if c == '}' {
s.cursor++
return nil
}
if c != ',' {
return errors.ErrExpected("comma after object element", s.totalOffset())
}
s.cursor++
}
}
func (d *structDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
depth++
if depth > maxDecodeNestingDepth {
return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
}
buflen := int64(len(buf))
cursor = skipWhiteSpace(buf, cursor)
b := (*sliceHeader)(unsafe.Pointer(&buf)).data
switch char(b, cursor) {
case 'n':
if err := validateNull(buf, cursor); err != nil {
return 0, err
}
cursor += 4
return cursor, nil
case '{':
default:
return 0, errors.ErrNotAtBeginningOfValue(cursor)
}
cursor++
cursor = skipWhiteSpace(buf, cursor)
if buf[cursor] == '}' {
cursor++
return cursor, nil
}
var (
seenFields map[int]struct{}
seenFieldNum int
)
firstWin := (ctx.Option.Flags & FirstWinOption) != 0
if firstWin {
seenFields = make(map[int]struct{}, d.fieldUniqueNameNum)
}
for {
c, field, err := d.keyDecoder(d, buf, cursor)
if err != nil {
return 0, err
}
cursor = skipWhiteSpace(buf, c)
if char(b, cursor) != ':' {
return 0, errors.ErrExpected("colon after object key", cursor)
}
cursor++
if cursor >= buflen {
return 0, errors.ErrExpected("object value after colon", cursor)
}
if field != nil {
if field.err != nil {
return 0, field.err
}
if firstWin {
if _, exists := seenFields[field.fieldIdx]; exists {
c, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
cursor = c
} else {
c, err := field.dec.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+field.offset))
if err != nil {
return 0, err
}
cursor = c
seenFieldNum++
if d.fieldUniqueNameNum <= seenFieldNum {
return skipObject(buf, cursor, depth)
}
seenFields[field.fieldIdx] = struct{}{}
}
} else {
c, err := field.dec.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+field.offset))
if err != nil {
return 0, err
}
cursor = c
}
} else {
c, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
cursor = c
}
cursor = skipWhiteSpace(buf, cursor)
if char(b, cursor) == '}' {
cursor++
return cursor, nil
}
if char(b, cursor) != ',' {
return 0, errors.ErrExpected("comma after object element", cursor)
}
cursor++
}
}

View file

@ -0,0 +1,29 @@
package decoder
import (
"context"
"encoding"
"encoding/json"
"reflect"
"unsafe"
)
type Decoder interface {
Decode(*RuntimeContext, int64, int64, unsafe.Pointer) (int64, error)
DecodeStream(*Stream, int64, unsafe.Pointer) error
}
const (
nul = '\000'
maxDecodeNestingDepth = 10000
)
type unmarshalerContext interface {
UnmarshalJSON(context.Context, []byte) error
}
var (
unmarshalJSONType = reflect.TypeOf((*json.Unmarshaler)(nil)).Elem()
unmarshalJSONContextType = reflect.TypeOf((*unmarshalerContext)(nil)).Elem()
unmarshalTextType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem()
)

View file

@ -0,0 +1,190 @@
package decoder
import (
"fmt"
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type uintDecoder struct {
typ *runtime.Type
kind reflect.Kind
op func(unsafe.Pointer, uint64)
structName string
fieldName string
}
func newUintDecoder(typ *runtime.Type, structName, fieldName string, op func(unsafe.Pointer, uint64)) *uintDecoder {
return &uintDecoder{
typ: typ,
kind: typ.Kind(),
op: op,
structName: structName,
fieldName: fieldName,
}
}
func (d *uintDecoder) typeError(buf []byte, offset int64) *errors.UnmarshalTypeError {
return &errors.UnmarshalTypeError{
Value: fmt.Sprintf("number %s", string(buf)),
Type: runtime.RType2Type(d.typ),
Offset: offset,
}
}
var (
pow10u64 = [...]uint64{
1e00, 1e01, 1e02, 1e03, 1e04, 1e05, 1e06, 1e07, 1e08, 1e09,
1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19,
}
pow10u64Len = len(pow10u64)
)
func (d *uintDecoder) parseUint(b []byte) (uint64, error) {
maxDigit := len(b)
if maxDigit > pow10u64Len {
return 0, fmt.Errorf("invalid length of number")
}
sum := uint64(0)
for i := 0; i < maxDigit; i++ {
c := uint64(b[i]) - 48
digitValue := pow10u64[maxDigit-i-1]
sum += c * digitValue
}
return sum, nil
}
func (d *uintDecoder) decodeStreamByte(s *Stream) ([]byte, error) {
for {
switch s.char() {
case ' ', '\n', '\t', '\r':
s.cursor++
continue
case '0':
s.cursor++
return numZeroBuf, nil
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := s.cursor
for {
s.cursor++
if numTable[s.char()] {
continue
} else if s.char() == nul {
if s.read() {
s.cursor-- // for retry current character
continue
}
}
break
}
num := s.buf[start:s.cursor]
return num, nil
case 'n':
if err := nullBytes(s); err != nil {
return nil, err
}
return nil, nil
case nul:
if s.read() {
continue
}
default:
return nil, d.typeError([]byte{s.char()}, s.totalOffset())
}
break
}
return nil, errors.ErrUnexpectedEndOfJSON("number(unsigned integer)", s.totalOffset())
}
func (d *uintDecoder) decodeByte(buf []byte, cursor int64) ([]byte, int64, error) {
for {
switch buf[cursor] {
case ' ', '\n', '\t', '\r':
cursor++
continue
case '0':
cursor++
return numZeroBuf, cursor, nil
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
start := cursor
cursor++
for numTable[buf[cursor]] {
cursor++
}
num := buf[start:cursor]
return num, cursor, nil
case 'n':
if err := validateNull(buf, cursor); err != nil {
return nil, 0, err
}
cursor += 4
return nil, cursor, nil
default:
return nil, 0, d.typeError([]byte{buf[cursor]}, cursor)
}
}
}
func (d *uintDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
return nil
}
u64, err := d.parseUint(bytes)
if err != nil {
return d.typeError(bytes, s.totalOffset())
}
switch d.kind {
case reflect.Uint8:
if (1 << 8) <= u64 {
return d.typeError(bytes, s.totalOffset())
}
case reflect.Uint16:
if (1 << 16) <= u64 {
return d.typeError(bytes, s.totalOffset())
}
case reflect.Uint32:
if (1 << 32) <= u64 {
return d.typeError(bytes, s.totalOffset())
}
}
d.op(p, u64)
return nil
}
func (d *uintDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
return c, nil
}
cursor = c
u64, err := d.parseUint(bytes)
if err != nil {
return 0, d.typeError(bytes, cursor)
}
switch d.kind {
case reflect.Uint8:
if (1 << 8) <= u64 {
return 0, d.typeError(bytes, cursor)
}
case reflect.Uint16:
if (1 << 16) <= u64 {
return 0, d.typeError(bytes, cursor)
}
case reflect.Uint32:
if (1 << 32) <= u64 {
return 0, d.typeError(bytes, cursor)
}
}
d.op(p, u64)
return cursor, nil
}

View file

@ -0,0 +1,91 @@
package decoder
import (
"encoding/json"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type unmarshalJSONDecoder struct {
typ *runtime.Type
structName string
fieldName string
}
func newUnmarshalJSONDecoder(typ *runtime.Type, structName, fieldName string) *unmarshalJSONDecoder {
return &unmarshalJSONDecoder{
typ: typ,
structName: structName,
fieldName: fieldName,
}
}
func (d *unmarshalJSONDecoder) annotateError(cursor int64, err error) {
switch e := err.(type) {
case *errors.UnmarshalTypeError:
e.Struct = d.structName
e.Field = d.fieldName
case *errors.SyntaxError:
e.Offset = cursor
}
}
func (d *unmarshalJSONDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
s.skipWhiteSpace()
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
dst := make([]byte, len(src))
copy(dst, src)
v := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: p,
}))
if (s.Option.Flags & ContextOption) != 0 {
if err := v.(unmarshalerContext).UnmarshalJSON(s.Option.Context, dst); err != nil {
d.annotateError(s.cursor, err)
return err
}
} else {
if err := v.(json.Unmarshaler).UnmarshalJSON(dst); err != nil {
d.annotateError(s.cursor, err)
return err
}
}
return nil
}
func (d *unmarshalJSONDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
dst := make([]byte, len(src))
copy(dst, src)
v := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: p,
}))
if (ctx.Option.Flags & ContextOption) != 0 {
if err := v.(unmarshalerContext).UnmarshalJSON(ctx.Option.Context, dst); err != nil {
d.annotateError(cursor, err)
return 0, err
}
} else {
if err := v.(json.Unmarshaler).UnmarshalJSON(dst); err != nil {
d.annotateError(cursor, err)
return 0, err
}
}
return end, nil
}

View file

@ -0,0 +1,280 @@
package decoder
import (
"bytes"
"encoding"
"unicode"
"unicode/utf16"
"unicode/utf8"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
type unmarshalTextDecoder struct {
typ *runtime.Type
structName string
fieldName string
}
func newUnmarshalTextDecoder(typ *runtime.Type, structName, fieldName string) *unmarshalTextDecoder {
return &unmarshalTextDecoder{
typ: typ,
structName: structName,
fieldName: fieldName,
}
}
func (d *unmarshalTextDecoder) annotateError(cursor int64, err error) {
switch e := err.(type) {
case *errors.UnmarshalTypeError:
e.Struct = d.structName
e.Field = d.fieldName
case *errors.SyntaxError:
e.Offset = cursor
}
}
var (
nullbytes = []byte(`null`)
)
func (d *unmarshalTextDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
s.skipWhiteSpace()
start := s.cursor
if err := s.skipValue(depth); err != nil {
return err
}
src := s.buf[start:s.cursor]
if len(src) > 0 {
switch src[0] {
case '[':
return &errors.UnmarshalTypeError{
Value: "array",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case '{':
return &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return &errors.UnmarshalTypeError{
Value: "number",
Type: runtime.RType2Type(d.typ),
Offset: s.totalOffset(),
}
case 'n':
if bytes.Equal(src, nullbytes) {
*(*unsafe.Pointer)(p) = nil
return nil
}
}
}
dst := make([]byte, len(src))
copy(dst, src)
if b, ok := unquoteBytes(dst); ok {
dst = b
}
v := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: p,
}))
if err := v.(encoding.TextUnmarshaler).UnmarshalText(dst); err != nil {
d.annotateError(s.cursor, err)
return err
}
return nil
}
func (d *unmarshalTextDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
buf := ctx.Buf
cursor = skipWhiteSpace(buf, cursor)
start := cursor
end, err := skipValue(buf, cursor, depth)
if err != nil {
return 0, err
}
src := buf[start:end]
if len(src) > 0 {
switch src[0] {
case '[':
return 0, &errors.UnmarshalTypeError{
Value: "array",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case '{':
return 0, &errors.UnmarshalTypeError{
Value: "object",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return 0, &errors.UnmarshalTypeError{
Value: "number",
Type: runtime.RType2Type(d.typ),
Offset: start,
}
case 'n':
if bytes.Equal(src, nullbytes) {
*(*unsafe.Pointer)(p) = nil
return end, nil
}
}
}
if s, ok := unquoteBytes(src); ok {
src = s
}
v := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: d.typ,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
if err := v.(encoding.TextUnmarshaler).UnmarshalText(src); err != nil {
d.annotateError(cursor, err)
return 0, err
}
return end, nil
}
func unquoteBytes(s []byte) (t []byte, ok bool) {
length := len(s)
if length < 2 || s[0] != '"' || s[length-1] != '"' {
return
}
s = s[1 : length-1]
length -= 2
// Check for unusual characters. If there are none,
// then no unquoting is needed, so return a slice of the
// original bytes.
r := 0
for r < length {
c := s[r]
if c == '\\' || c == '"' || c < ' ' {
break
}
if c < utf8.RuneSelf {
r++
continue
}
rr, size := utf8.DecodeRune(s[r:])
if rr == utf8.RuneError && size == 1 {
break
}
r += size
}
if r == length {
return s, true
}
b := make([]byte, length+2*utf8.UTFMax)
w := copy(b, s[0:r])
for r < length {
// Out of room? Can only happen if s is full of
// malformed UTF-8 and we're replacing each
// byte with RuneError.
if w >= len(b)-2*utf8.UTFMax {
nb := make([]byte, (len(b)+utf8.UTFMax)*2)
copy(nb, b[0:w])
b = nb
}
switch c := s[r]; {
case c == '\\':
r++
if r >= length {
return
}
switch s[r] {
default:
return
case '"', '\\', '/', '\'':
b[w] = s[r]
r++
w++
case 'b':
b[w] = '\b'
r++
w++
case 'f':
b[w] = '\f'
r++
w++
case 'n':
b[w] = '\n'
r++
w++
case 'r':
b[w] = '\r'
r++
w++
case 't':
b[w] = '\t'
r++
w++
case 'u':
r--
rr := getu4(s[r:])
if rr < 0 {
return
}
r += 6
if utf16.IsSurrogate(rr) {
rr1 := getu4(s[r:])
if dec := utf16.DecodeRune(rr, rr1); dec != unicode.ReplacementChar {
// A valid pair; consume.
r += 6
w += utf8.EncodeRune(b[w:], dec)
break
}
// Invalid surrogate; fall back to replacement rune.
rr = unicode.ReplacementChar
}
w += utf8.EncodeRune(b[w:], rr)
}
// Quote, control characters are invalid.
case c == '"', c < ' ':
return
// ASCII
case c < utf8.RuneSelf:
b[w] = c
r++
w++
// Coerce to well-formed UTF-8.
default:
rr, size := utf8.DecodeRune(s[r:])
r += size
w += utf8.EncodeRune(b[w:], rr)
}
}
return b[0:w], true
}
func getu4(s []byte) rune {
if len(s) < 6 || s[0] != '\\' || s[1] != 'u' {
return -1
}
var r rune
for _, c := range s[2:6] {
switch {
case '0' <= c && c <= '9':
c = c - '0'
case 'a' <= c && c <= 'f':
c = c - 'a' + 10
case 'A' <= c && c <= 'F':
c = c - 'A' + 10
default:
return -1
}
r = r*16 + rune(c)
}
return r
}

View file

@ -0,0 +1,68 @@
package decoder
import (
"reflect"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
type wrappedStringDecoder struct {
typ *runtime.Type
dec Decoder
stringDecoder *stringDecoder
structName string
fieldName string
isPtrType bool
}
func newWrappedStringDecoder(typ *runtime.Type, dec Decoder, structName, fieldName string) *wrappedStringDecoder {
return &wrappedStringDecoder{
typ: typ,
dec: dec,
stringDecoder: newStringDecoder(structName, fieldName),
structName: structName,
fieldName: fieldName,
isPtrType: typ.Kind() == reflect.Ptr,
}
}
func (d *wrappedStringDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
bytes, err := d.stringDecoder.decodeStreamByte(s)
if err != nil {
return err
}
if bytes == nil {
if d.isPtrType {
*(*unsafe.Pointer)(p) = nil
}
return nil
}
b := make([]byte, len(bytes)+1)
copy(b, bytes)
if _, err := d.dec.Decode(&RuntimeContext{Buf: b}, 0, depth, p); err != nil {
return err
}
return nil
}
func (d *wrappedStringDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
bytes, c, err := d.stringDecoder.decodeByte(ctx.Buf, cursor)
if err != nil {
return 0, err
}
if bytes == nil {
if d.isPtrType {
*(*unsafe.Pointer)(p) = nil
}
return c, nil
}
bytes = append(bytes, nul)
oldBuf := ctx.Buf
ctx.Buf = bytes
if _, err := d.dec.Decode(ctx, 0, depth, p); err != nil {
return 0, err
}
ctx.Buf = oldBuf
return c, nil
}

View file

@ -0,0 +1,286 @@
package encoder
import (
"bytes"
"fmt"
"strconv"
"unsafe"
"github.com/goccy/go-json/internal/errors"
)
var (
isWhiteSpace = [256]bool{
' ': true,
'\n': true,
'\t': true,
'\r': true,
}
isHTMLEscapeChar = [256]bool{
'<': true,
'>': true,
'&': true,
}
nul = byte('\000')
)
func Compact(buf *bytes.Buffer, src []byte, escape bool) error {
if len(src) == 0 {
return errors.ErrUnexpectedEndOfJSON("", 0)
}
buf.Grow(len(src))
dst := buf.Bytes()
ctx := TakeRuntimeContext()
ctxBuf := ctx.Buf[:0]
ctxBuf = append(append(ctxBuf, src...), nul)
ctx.Buf = ctxBuf
if err := compactAndWrite(buf, dst, ctxBuf, escape); err != nil {
ReleaseRuntimeContext(ctx)
return err
}
ReleaseRuntimeContext(ctx)
return nil
}
func compactAndWrite(buf *bytes.Buffer, dst []byte, src []byte, escape bool) error {
dst, err := compact(dst, src, escape)
if err != nil {
return err
}
if _, err := buf.Write(dst); err != nil {
return err
}
return nil
}
func compact(dst, src []byte, escape bool) ([]byte, error) {
buf, cursor, err := compactValue(dst, src, 0, escape)
if err != nil {
return nil, err
}
if err := validateEndBuf(src, cursor); err != nil {
return nil, err
}
return buf, nil
}
func validateEndBuf(src []byte, cursor int64) error {
for {
switch src[cursor] {
case ' ', '\t', '\n', '\r':
cursor++
continue
case nul:
return nil
}
return errors.ErrSyntax(
fmt.Sprintf("invalid character '%c' after top-level value", src[cursor]),
cursor+1,
)
}
}
func skipWhiteSpace(buf []byte, cursor int64) int64 {
LOOP:
if isWhiteSpace[buf[cursor]] {
cursor++
goto LOOP
}
return cursor
}
func compactValue(dst, src []byte, cursor int64, escape bool) ([]byte, int64, error) {
for {
switch src[cursor] {
case ' ', '\t', '\n', '\r':
cursor++
continue
case '{':
return compactObject(dst, src, cursor, escape)
case '}':
return nil, 0, errors.ErrSyntax("unexpected character '}'", cursor)
case '[':
return compactArray(dst, src, cursor, escape)
case ']':
return nil, 0, errors.ErrSyntax("unexpected character ']'", cursor)
case '"':
return compactString(dst, src, cursor, escape)
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return compactNumber(dst, src, cursor)
case 't':
return compactTrue(dst, src, cursor)
case 'f':
return compactFalse(dst, src, cursor)
case 'n':
return compactNull(dst, src, cursor)
default:
return nil, 0, errors.ErrSyntax(fmt.Sprintf("unexpected character '%c'", src[cursor]), cursor)
}
}
}
func compactObject(dst, src []byte, cursor int64, escape bool) ([]byte, int64, error) {
if src[cursor] == '{' {
dst = append(dst, '{')
} else {
return nil, 0, errors.ErrExpected("expected { character for object value", cursor)
}
cursor = skipWhiteSpace(src, cursor+1)
if src[cursor] == '}' {
dst = append(dst, '}')
return dst, cursor + 1, nil
}
var err error
for {
cursor = skipWhiteSpace(src, cursor)
dst, cursor, err = compactString(dst, src, cursor, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
if src[cursor] != ':' {
return nil, 0, errors.ErrExpected("colon after object key", cursor)
}
dst = append(dst, ':')
dst, cursor, err = compactValue(dst, src, cursor+1, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
switch src[cursor] {
case '}':
dst = append(dst, '}')
cursor++
return dst, cursor, nil
case ',':
dst = append(dst, ',')
default:
return nil, 0, errors.ErrExpected("comma after object value", cursor)
}
cursor++
}
}
func compactArray(dst, src []byte, cursor int64, escape bool) ([]byte, int64, error) {
if src[cursor] == '[' {
dst = append(dst, '[')
} else {
return nil, 0, errors.ErrExpected("expected [ character for array value", cursor)
}
cursor = skipWhiteSpace(src, cursor+1)
if src[cursor] == ']' {
dst = append(dst, ']')
return dst, cursor + 1, nil
}
var err error
for {
dst, cursor, err = compactValue(dst, src, cursor, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
switch src[cursor] {
case ']':
dst = append(dst, ']')
cursor++
return dst, cursor, nil
case ',':
dst = append(dst, ',')
default:
return nil, 0, errors.ErrExpected("comma after array value", cursor)
}
cursor++
}
}
func compactString(dst, src []byte, cursor int64, escape bool) ([]byte, int64, error) {
if src[cursor] != '"' {
return nil, 0, errors.ErrInvalidCharacter(src[cursor], "string", cursor)
}
start := cursor
for {
cursor++
c := src[cursor]
if escape {
if isHTMLEscapeChar[c] {
dst = append(dst, src[start:cursor]...)
dst = append(dst, `\u00`...)
dst = append(dst, hex[c>>4], hex[c&0xF])
start = cursor + 1
} else if c == 0xE2 && cursor+2 < int64(len(src)) && src[cursor+1] == 0x80 && src[cursor+2]&^1 == 0xA8 {
dst = append(dst, src[start:cursor]...)
dst = append(dst, `\u202`...)
dst = append(dst, hex[src[cursor+2]&0xF])
cursor += 2
start = cursor + 3
}
}
switch c {
case '\\':
cursor++
if src[cursor] == nul {
return nil, 0, errors.ErrUnexpectedEndOfJSON("string", int64(len(src)))
}
case '"':
cursor++
return append(dst, src[start:cursor]...), cursor, nil
case nul:
return nil, 0, errors.ErrUnexpectedEndOfJSON("string", int64(len(src)))
}
}
}
func compactNumber(dst, src []byte, cursor int64) ([]byte, int64, error) {
start := cursor
for {
cursor++
if floatTable[src[cursor]] {
continue
}
break
}
num := src[start:cursor]
if _, err := strconv.ParseFloat(*(*string)(unsafe.Pointer(&num)), 64); err != nil {
return nil, 0, err
}
dst = append(dst, num...)
return dst, cursor, nil
}
func compactTrue(dst, src []byte, cursor int64) ([]byte, int64, error) {
if cursor+3 >= int64(len(src)) {
return nil, 0, errors.ErrUnexpectedEndOfJSON("true", cursor)
}
if !bytes.Equal(src[cursor:cursor+4], []byte(`true`)) {
return nil, 0, errors.ErrInvalidCharacter(src[cursor], "true", cursor)
}
dst = append(dst, "true"...)
cursor += 4
return dst, cursor, nil
}
func compactFalse(dst, src []byte, cursor int64) ([]byte, int64, error) {
if cursor+4 >= int64(len(src)) {
return nil, 0, errors.ErrUnexpectedEndOfJSON("false", cursor)
}
if !bytes.Equal(src[cursor:cursor+5], []byte(`false`)) {
return nil, 0, errors.ErrInvalidCharacter(src[cursor], "false", cursor)
}
dst = append(dst, "false"...)
cursor += 5
return dst, cursor, nil
}
func compactNull(dst, src []byte, cursor int64) ([]byte, int64, error) {
if cursor+3 >= int64(len(src)) {
return nil, 0, errors.ErrUnexpectedEndOfJSON("null", cursor)
}
if !bytes.Equal(src[cursor:cursor+4], []byte(`null`)) {
return nil, 0, errors.ErrInvalidCharacter(src[cursor], "null", cursor)
}
dst = append(dst, "null"...)
cursor += 4
return dst, cursor, nil
}

File diff suppressed because it is too large Load diff

View file

@ -0,0 +1,56 @@
// +build !race
package encoder
import (
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
func CompileToGetCodeSet(typeptr uintptr) (*OpcodeSet, error) {
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetCodeSetSlowPath(typeptr)
}
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
if codeSet := cachedOpcodeSets[index]; codeSet != nil {
return codeSet, nil
}
// noescape trick for header.typ ( reflect.*rtype )
copiedType := *(**runtime.Type)(unsafe.Pointer(&typeptr))
noescapeKeyCode, err := compileHead(&compileContext{
typ: copiedType,
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
})
if err != nil {
return nil, err
}
escapeKeyCode, err := compileHead(&compileContext{
typ: copiedType,
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
escapeKey: true,
})
if err != nil {
return nil, err
}
noescapeKeyCode = copyOpcode(noescapeKeyCode)
escapeKeyCode = copyOpcode(escapeKeyCode)
setTotalLengthToInterfaceOp(noescapeKeyCode)
setTotalLengthToInterfaceOp(escapeKeyCode)
interfaceNoescapeKeyCode := copyToInterfaceOpcode(noescapeKeyCode)
interfaceEscapeKeyCode := copyToInterfaceOpcode(escapeKeyCode)
codeLength := noescapeKeyCode.TotalLength()
codeSet := &OpcodeSet{
Type: copiedType,
NoescapeKeyCode: noescapeKeyCode,
EscapeKeyCode: escapeKeyCode,
InterfaceNoescapeKeyCode: interfaceNoescapeKeyCode,
InterfaceEscapeKeyCode: interfaceEscapeKeyCode,
CodeLength: codeLength,
EndCode: ToEndCode(interfaceNoescapeKeyCode),
}
cachedOpcodeSets[index] = codeSet
return codeSet, nil
}

View file

@ -0,0 +1,65 @@
// +build race
package encoder
import (
"sync"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
var setsMu sync.RWMutex
func CompileToGetCodeSet(typeptr uintptr) (*OpcodeSet, error) {
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetCodeSetSlowPath(typeptr)
}
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
setsMu.RLock()
if codeSet := cachedOpcodeSets[index]; codeSet != nil {
setsMu.RUnlock()
return codeSet, nil
}
setsMu.RUnlock()
// noescape trick for header.typ ( reflect.*rtype )
copiedType := *(**runtime.Type)(unsafe.Pointer(&typeptr))
noescapeKeyCode, err := compileHead(&compileContext{
typ: copiedType,
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
})
if err != nil {
return nil, err
}
escapeKeyCode, err := compileHead(&compileContext{
typ: copiedType,
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
escapeKey: true,
})
if err != nil {
return nil, err
}
noescapeKeyCode = copyOpcode(noescapeKeyCode)
escapeKeyCode = copyOpcode(escapeKeyCode)
setTotalLengthToInterfaceOp(noescapeKeyCode)
setTotalLengthToInterfaceOp(escapeKeyCode)
interfaceNoescapeKeyCode := copyToInterfaceOpcode(noescapeKeyCode)
interfaceEscapeKeyCode := copyToInterfaceOpcode(escapeKeyCode)
codeLength := noescapeKeyCode.TotalLength()
codeSet := &OpcodeSet{
Type: copiedType,
NoescapeKeyCode: noescapeKeyCode,
EscapeKeyCode: escapeKeyCode,
InterfaceNoescapeKeyCode: interfaceNoescapeKeyCode,
InterfaceEscapeKeyCode: interfaceEscapeKeyCode,
CodeLength: codeLength,
EndCode: ToEndCode(interfaceNoescapeKeyCode),
}
setsMu.Lock()
cachedOpcodeSets[index] = codeSet
setsMu.Unlock()
return codeSet, nil
}

View file

@ -0,0 +1,141 @@
package encoder
import (
"context"
"sync"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
type compileContext struct {
typ *runtime.Type
opcodeIndex uint32
ptrIndex int
indent uint32
escapeKey bool
structTypeToCompiledCode map[uintptr]*CompiledCode
parent *compileContext
}
func (c *compileContext) context() *compileContext {
return &compileContext{
typ: c.typ,
opcodeIndex: c.opcodeIndex,
ptrIndex: c.ptrIndex,
indent: c.indent,
escapeKey: c.escapeKey,
structTypeToCompiledCode: c.structTypeToCompiledCode,
parent: c,
}
}
func (c *compileContext) withType(typ *runtime.Type) *compileContext {
ctx := c.context()
ctx.typ = typ
return ctx
}
func (c *compileContext) incIndent() *compileContext {
ctx := c.context()
ctx.indent++
return ctx
}
func (c *compileContext) decIndent() *compileContext {
ctx := c.context()
ctx.indent--
return ctx
}
func (c *compileContext) incIndex() {
c.incOpcodeIndex()
c.incPtrIndex()
}
func (c *compileContext) decIndex() {
c.decOpcodeIndex()
c.decPtrIndex()
}
func (c *compileContext) incOpcodeIndex() {
c.opcodeIndex++
if c.parent != nil {
c.parent.incOpcodeIndex()
}
}
func (c *compileContext) decOpcodeIndex() {
c.opcodeIndex--
if c.parent != nil {
c.parent.decOpcodeIndex()
}
}
func (c *compileContext) incPtrIndex() {
c.ptrIndex++
if c.parent != nil {
c.parent.incPtrIndex()
}
}
func (c *compileContext) decPtrIndex() {
c.ptrIndex--
if c.parent != nil {
c.parent.decPtrIndex()
}
}
const (
bufSize = 1024
)
var (
runtimeContextPool = sync.Pool{
New: func() interface{} {
return &RuntimeContext{
Buf: make([]byte, 0, bufSize),
Ptrs: make([]uintptr, 128),
KeepRefs: make([]unsafe.Pointer, 0, 8),
Option: &Option{},
}
},
}
)
type RuntimeContext struct {
Context context.Context
Buf []byte
MarshalBuf []byte
Ptrs []uintptr
KeepRefs []unsafe.Pointer
SeenPtr []uintptr
BaseIndent uint32
Prefix []byte
IndentStr []byte
Option *Option
}
func (c *RuntimeContext) Init(p uintptr, codelen int) {
if len(c.Ptrs) < codelen {
c.Ptrs = make([]uintptr, codelen)
}
c.Ptrs[0] = p
c.KeepRefs = c.KeepRefs[:0]
c.SeenPtr = c.SeenPtr[:0]
c.BaseIndent = 0
}
func (c *RuntimeContext) Ptr() uintptr {
header := (*runtime.SliceHeader)(unsafe.Pointer(&c.Ptrs))
return uintptr(header.Data)
}
func TakeRuntimeContext() *RuntimeContext {
return runtimeContextPool.Get().(*RuntimeContext)
}
func ReleaseRuntimeContext(ctx *RuntimeContext) {
runtimeContextPool.Put(ctx)
}

View file

@ -0,0 +1,551 @@
package encoder
import (
"bytes"
"encoding"
"encoding/base64"
"encoding/json"
"fmt"
"math"
"reflect"
"strconv"
"strings"
"sync"
"unsafe"
"github.com/goccy/go-json/internal/errors"
"github.com/goccy/go-json/internal/runtime"
)
func (t OpType) IsMultipleOpHead() bool {
switch t {
case OpStructHead:
return true
case OpStructHeadSlice:
return true
case OpStructHeadArray:
return true
case OpStructHeadMap:
return true
case OpStructHeadStruct:
return true
case OpStructHeadOmitEmpty:
return true
case OpStructHeadOmitEmptySlice:
return true
case OpStructHeadOmitEmptyArray:
return true
case OpStructHeadOmitEmptyMap:
return true
case OpStructHeadOmitEmptyStruct:
return true
case OpStructHeadSlicePtr:
return true
case OpStructHeadOmitEmptySlicePtr:
return true
case OpStructHeadArrayPtr:
return true
case OpStructHeadOmitEmptyArrayPtr:
return true
case OpStructHeadMapPtr:
return true
case OpStructHeadOmitEmptyMapPtr:
return true
}
return false
}
func (t OpType) IsMultipleOpField() bool {
switch t {
case OpStructField:
return true
case OpStructFieldSlice:
return true
case OpStructFieldArray:
return true
case OpStructFieldMap:
return true
case OpStructFieldStruct:
return true
case OpStructFieldOmitEmpty:
return true
case OpStructFieldOmitEmptySlice:
return true
case OpStructFieldOmitEmptyArray:
return true
case OpStructFieldOmitEmptyMap:
return true
case OpStructFieldOmitEmptyStruct:
return true
case OpStructFieldSlicePtr:
return true
case OpStructFieldOmitEmptySlicePtr:
return true
case OpStructFieldArrayPtr:
return true
case OpStructFieldOmitEmptyArrayPtr:
return true
case OpStructFieldMapPtr:
return true
case OpStructFieldOmitEmptyMapPtr:
return true
}
return false
}
type OpcodeSet struct {
Type *runtime.Type
NoescapeKeyCode *Opcode
EscapeKeyCode *Opcode
InterfaceNoescapeKeyCode *Opcode
InterfaceEscapeKeyCode *Opcode
CodeLength int
EndCode *Opcode
}
type CompiledCode struct {
Code *Opcode
Linked bool // whether recursive code already have linked
CurLen uintptr
NextLen uintptr
}
const StartDetectingCyclesAfter = 1000
func Load(base uintptr, idx uintptr) uintptr {
addr := base + idx
return **(**uintptr)(unsafe.Pointer(&addr))
}
func Store(base uintptr, idx uintptr, p uintptr) {
addr := base + idx
**(**uintptr)(unsafe.Pointer(&addr)) = p
}
func LoadNPtr(base uintptr, idx uintptr, ptrNum int) uintptr {
addr := base + idx
p := **(**uintptr)(unsafe.Pointer(&addr))
if p == 0 {
return 0
}
return PtrToPtr(p)
/*
for i := 0; i < ptrNum; i++ {
if p == 0 {
return p
}
p = PtrToPtr(p)
}
return p
*/
}
func PtrToUint64(p uintptr) uint64 { return **(**uint64)(unsafe.Pointer(&p)) }
func PtrToFloat32(p uintptr) float32 { return **(**float32)(unsafe.Pointer(&p)) }
func PtrToFloat64(p uintptr) float64 { return **(**float64)(unsafe.Pointer(&p)) }
func PtrToBool(p uintptr) bool { return **(**bool)(unsafe.Pointer(&p)) }
func PtrToBytes(p uintptr) []byte { return **(**[]byte)(unsafe.Pointer(&p)) }
func PtrToNumber(p uintptr) json.Number { return **(**json.Number)(unsafe.Pointer(&p)) }
func PtrToString(p uintptr) string { return **(**string)(unsafe.Pointer(&p)) }
func PtrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
func PtrToPtr(p uintptr) uintptr {
return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
}
func PtrToNPtr(p uintptr, ptrNum int) uintptr {
for i := 0; i < ptrNum; i++ {
if p == 0 {
return 0
}
p = PtrToPtr(p)
}
return p
}
func PtrToUnsafePtr(p uintptr) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&p))
}
func PtrToInterface(code *Opcode, p uintptr) interface{} {
return *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
}
func ErrUnsupportedValue(code *Opcode, ptr uintptr) *errors.UnsupportedValueError {
v := *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&ptr)),
}))
return &errors.UnsupportedValueError{
Value: reflect.ValueOf(v),
Str: fmt.Sprintf("encountered a cycle via %s", code.Type),
}
}
func ErrUnsupportedFloat(v float64) *errors.UnsupportedValueError {
return &errors.UnsupportedValueError{
Value: reflect.ValueOf(v),
Str: strconv.FormatFloat(v, 'g', -1, 64),
}
}
func ErrMarshalerWithCode(code *Opcode, err error) *errors.MarshalerError {
return &errors.MarshalerError{
Type: runtime.RType2Type(code.Type),
Err: err,
}
}
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
type MapItem struct {
Key []byte
Value []byte
}
type Mapslice struct {
Items []MapItem
}
func (m *Mapslice) Len() int {
return len(m.Items)
}
func (m *Mapslice) Less(i, j int) bool {
return bytes.Compare(m.Items[i].Key, m.Items[j].Key) < 0
}
func (m *Mapslice) Swap(i, j int) {
m.Items[i], m.Items[j] = m.Items[j], m.Items[i]
}
type MapContext struct {
Pos []int
Slice *Mapslice
Buf []byte
}
var mapContextPool = sync.Pool{
New: func() interface{} {
return &MapContext{}
},
}
func NewMapContext(mapLen int) *MapContext {
ctx := mapContextPool.Get().(*MapContext)
if ctx.Slice == nil {
ctx.Slice = &Mapslice{
Items: make([]MapItem, 0, mapLen),
}
}
if cap(ctx.Pos) < (mapLen*2 + 1) {
ctx.Pos = make([]int, 0, mapLen*2+1)
ctx.Slice.Items = make([]MapItem, 0, mapLen)
} else {
ctx.Pos = ctx.Pos[:0]
ctx.Slice.Items = ctx.Slice.Items[:0]
}
ctx.Buf = ctx.Buf[:0]
return ctx
}
func ReleaseMapContext(c *MapContext) {
mapContextPool.Put(c)
}
//go:linkname MapIterInit reflect.mapiterinit
//go:noescape
func MapIterInit(mapType *runtime.Type, m unsafe.Pointer) unsafe.Pointer
//go:linkname MapIterKey reflect.mapiterkey
//go:noescape
func MapIterKey(it unsafe.Pointer) unsafe.Pointer
//go:linkname MapIterNext reflect.mapiternext
//go:noescape
func MapIterNext(it unsafe.Pointer)
//go:linkname MapLen reflect.maplen
//go:noescape
func MapLen(m unsafe.Pointer) int
func AppendByteSlice(_ *RuntimeContext, b []byte, src []byte) []byte {
if src == nil {
return append(b, `null`...)
}
encodedLen := base64.StdEncoding.EncodedLen(len(src))
b = append(b, '"')
pos := len(b)
remainLen := cap(b[pos:])
var buf []byte
if remainLen > encodedLen {
buf = b[pos : pos+encodedLen]
} else {
buf = make([]byte, encodedLen)
}
base64.StdEncoding.Encode(buf, src)
return append(append(b, buf...), '"')
}
func AppendFloat32(_ *RuntimeContext, b []byte, v float32) []byte {
f64 := float64(v)
abs := math.Abs(f64)
fmt := byte('f')
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
if abs != 0 {
f32 := float32(abs)
if f32 < 1e-6 || f32 >= 1e21 {
fmt = 'e'
}
}
return strconv.AppendFloat(b, f64, fmt, -1, 32)
}
func AppendFloat64(_ *RuntimeContext, b []byte, v float64) []byte {
abs := math.Abs(v)
fmt := byte('f')
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
if abs != 0 {
if abs < 1e-6 || abs >= 1e21 {
fmt = 'e'
}
}
return strconv.AppendFloat(b, v, fmt, -1, 64)
}
func AppendBool(_ *RuntimeContext, b []byte, v bool) []byte {
if v {
return append(b, "true"...)
}
return append(b, "false"...)
}
var (
floatTable = [256]bool{
'0': true,
'1': true,
'2': true,
'3': true,
'4': true,
'5': true,
'6': true,
'7': true,
'8': true,
'9': true,
'.': true,
'e': true,
'E': true,
'+': true,
'-': true,
}
)
func AppendNumber(_ *RuntimeContext, b []byte, n json.Number) ([]byte, error) {
if len(n) == 0 {
return append(b, '0'), nil
}
for i := 0; i < len(n); i++ {
if !floatTable[n[i]] {
return nil, fmt.Errorf("json: invalid number literal %q", n)
}
}
b = append(b, n...)
return b, nil
}
func AppendMarshalJSON(ctx *RuntimeContext, code *Opcode, b []byte, v interface{}) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if (code.Flags & AddrForMarshalerFlags) != 0 {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
var bb []byte
if (code.Flags & MarshalerContextFlags) != 0 {
marshaler, ok := v.(marshalerContext)
if !ok {
return AppendNull(ctx, b), nil
}
b, err := marshaler.MarshalJSON(ctx.Option.Context)
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
bb = b
} else {
marshaler, ok := v.(json.Marshaler)
if !ok {
return AppendNull(ctx, b), nil
}
b, err := marshaler.MarshalJSON()
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
bb = b
}
marshalBuf := ctx.MarshalBuf[:0]
marshalBuf = append(append(marshalBuf, bb...), nul)
compactedBuf, err := compact(b, marshalBuf, (ctx.Option.Flag&HTMLEscapeOption) != 0)
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
ctx.MarshalBuf = marshalBuf
return compactedBuf, nil
}
func AppendMarshalJSONIndent(ctx *RuntimeContext, code *Opcode, b []byte, v interface{}) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if (code.Flags & AddrForMarshalerFlags) != 0 {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
var bb []byte
if (code.Flags & MarshalerContextFlags) != 0 {
marshaler, ok := v.(marshalerContext)
if !ok {
return AppendNull(ctx, b), nil
}
b, err := marshaler.MarshalJSON(ctx.Option.Context)
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
bb = b
} else {
marshaler, ok := v.(json.Marshaler)
if !ok {
return AppendNull(ctx, b), nil
}
b, err := marshaler.MarshalJSON()
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
bb = b
}
marshalBuf := ctx.MarshalBuf[:0]
marshalBuf = append(append(marshalBuf, bb...), nul)
indentedBuf, err := doIndent(
b,
marshalBuf,
string(ctx.Prefix)+strings.Repeat(string(ctx.IndentStr), int(ctx.BaseIndent+code.Indent)),
string(ctx.IndentStr),
(ctx.Option.Flag&HTMLEscapeOption) != 0,
)
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
ctx.MarshalBuf = marshalBuf
return indentedBuf, nil
}
func AppendMarshalText(ctx *RuntimeContext, code *Opcode, b []byte, v interface{}) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if (code.Flags & AddrForMarshalerFlags) != 0 {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(encoding.TextMarshaler)
if !ok {
return AppendNull(ctx, b), nil
}
bytes, err := marshaler.MarshalText()
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
return AppendString(ctx, b, *(*string)(unsafe.Pointer(&bytes))), nil
}
func AppendMarshalTextIndent(ctx *RuntimeContext, code *Opcode, b []byte, v interface{}) ([]byte, error) {
rv := reflect.ValueOf(v) // convert by dynamic interface type
if (code.Flags & AddrForMarshalerFlags) != 0 {
if rv.CanAddr() {
rv = rv.Addr()
} else {
newV := reflect.New(rv.Type())
newV.Elem().Set(rv)
rv = newV
}
}
v = rv.Interface()
marshaler, ok := v.(encoding.TextMarshaler)
if !ok {
return AppendNull(ctx, b), nil
}
bytes, err := marshaler.MarshalText()
if err != nil {
return nil, &errors.MarshalerError{Type: reflect.TypeOf(v), Err: err}
}
return AppendString(ctx, b, *(*string)(unsafe.Pointer(&bytes))), nil
}
func AppendNull(_ *RuntimeContext, b []byte) []byte {
return append(b, "null"...)
}
func AppendComma(_ *RuntimeContext, b []byte) []byte {
return append(b, ',')
}
func AppendCommaIndent(_ *RuntimeContext, b []byte) []byte {
return append(b, ',', '\n')
}
func AppendStructEnd(_ *RuntimeContext, b []byte) []byte {
return append(b, '}', ',')
}
func AppendStructEndIndent(ctx *RuntimeContext, code *Opcode, b []byte) []byte {
b = append(b, '\n')
b = append(b, ctx.Prefix...)
indentNum := ctx.BaseIndent + code.Indent - 1
for i := uint32(0); i < indentNum; i++ {
b = append(b, ctx.IndentStr...)
}
return append(b, '}', ',', '\n')
}
func AppendIndent(ctx *RuntimeContext, b []byte, indent uint32) []byte {
b = append(b, ctx.Prefix...)
indentNum := ctx.BaseIndent + indent
for i := uint32(0); i < indentNum; i++ {
b = append(b, ctx.IndentStr...)
}
return b
}
func IsNilForMarshaler(v interface{}) bool {
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Bool:
return !rv.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return rv.Uint() == 0
case reflect.Float32, reflect.Float64:
return math.Float64bits(rv.Float()) == 0
case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Func:
return rv.IsNil()
case reflect.Slice:
return rv.IsNil() || rv.Len() == 0
}
return false
}

View file

@ -0,0 +1,211 @@
package encoder
import (
"bytes"
"fmt"
"github.com/goccy/go-json/internal/errors"
)
func takeIndentSrcRuntimeContext(src []byte) (*RuntimeContext, []byte) {
ctx := TakeRuntimeContext()
buf := ctx.Buf[:0]
buf = append(append(buf, src...), nul)
ctx.Buf = buf
return ctx, buf
}
func Indent(buf *bytes.Buffer, src []byte, prefix, indentStr string) error {
if len(src) == 0 {
return errors.ErrUnexpectedEndOfJSON("", 0)
}
srcCtx, srcBuf := takeIndentSrcRuntimeContext(src)
dstCtx := TakeRuntimeContext()
dst := dstCtx.Buf[:0]
dst, err := indentAndWrite(buf, dst, srcBuf, prefix, indentStr)
if err != nil {
ReleaseRuntimeContext(srcCtx)
ReleaseRuntimeContext(dstCtx)
return err
}
dstCtx.Buf = dst
ReleaseRuntimeContext(srcCtx)
ReleaseRuntimeContext(dstCtx)
return nil
}
func indentAndWrite(buf *bytes.Buffer, dst []byte, src []byte, prefix, indentStr string) ([]byte, error) {
dst, err := doIndent(dst, src, prefix, indentStr, false)
if err != nil {
return nil, err
}
if _, err := buf.Write(dst); err != nil {
return nil, err
}
return dst, nil
}
func doIndent(dst, src []byte, prefix, indentStr string, escape bool) ([]byte, error) {
buf, cursor, err := indentValue(dst, src, 0, 0, []byte(prefix), []byte(indentStr), escape)
if err != nil {
return nil, err
}
if err := validateEndBuf(src, cursor); err != nil {
return nil, err
}
return buf, nil
}
func indentValue(
dst []byte,
src []byte,
indentNum int,
cursor int64,
prefix []byte,
indentBytes []byte,
escape bool) ([]byte, int64, error) {
for {
switch src[cursor] {
case ' ', '\t', '\n', '\r':
cursor++
continue
case '{':
return indentObject(dst, src, indentNum, cursor, prefix, indentBytes, escape)
case '}':
return nil, 0, errors.ErrSyntax("unexpected character '}'", cursor)
case '[':
return indentArray(dst, src, indentNum, cursor, prefix, indentBytes, escape)
case ']':
return nil, 0, errors.ErrSyntax("unexpected character ']'", cursor)
case '"':
return compactString(dst, src, cursor, escape)
case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
return compactNumber(dst, src, cursor)
case 't':
return compactTrue(dst, src, cursor)
case 'f':
return compactFalse(dst, src, cursor)
case 'n':
return compactNull(dst, src, cursor)
default:
return nil, 0, errors.ErrSyntax(fmt.Sprintf("unexpected character '%c'", src[cursor]), cursor)
}
}
}
func indentObject(
dst []byte,
src []byte,
indentNum int,
cursor int64,
prefix []byte,
indentBytes []byte,
escape bool) ([]byte, int64, error) {
if src[cursor] == '{' {
dst = append(dst, '{')
} else {
return nil, 0, errors.ErrExpected("expected { character for object value", cursor)
}
cursor = skipWhiteSpace(src, cursor+1)
if src[cursor] == '}' {
dst = append(dst, '}')
return dst, cursor + 1, nil
}
indentNum++
var err error
for {
dst = append(append(dst, '\n'), prefix...)
for i := 0; i < indentNum; i++ {
dst = append(dst, indentBytes...)
}
cursor = skipWhiteSpace(src, cursor)
dst, cursor, err = compactString(dst, src, cursor, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
if src[cursor] != ':' {
return nil, 0, errors.ErrSyntax(
fmt.Sprintf("invalid character '%c' after object key", src[cursor]),
cursor+1,
)
}
dst = append(dst, ':', ' ')
dst, cursor, err = indentValue(dst, src, indentNum, cursor+1, prefix, indentBytes, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
switch src[cursor] {
case '}':
dst = append(append(dst, '\n'), prefix...)
for i := 0; i < indentNum-1; i++ {
dst = append(dst, indentBytes...)
}
dst = append(dst, '}')
cursor++
return dst, cursor, nil
case ',':
dst = append(dst, ',')
default:
return nil, 0, errors.ErrSyntax(
fmt.Sprintf("invalid character '%c' after object key:value pair", src[cursor]),
cursor+1,
)
}
cursor++
}
}
func indentArray(
dst []byte,
src []byte,
indentNum int,
cursor int64,
prefix []byte,
indentBytes []byte,
escape bool) ([]byte, int64, error) {
if src[cursor] == '[' {
dst = append(dst, '[')
} else {
return nil, 0, errors.ErrExpected("expected [ character for array value", cursor)
}
cursor = skipWhiteSpace(src, cursor+1)
if src[cursor] == ']' {
dst = append(dst, ']')
return dst, cursor + 1, nil
}
indentNum++
var err error
for {
dst = append(append(dst, '\n'), prefix...)
for i := 0; i < indentNum; i++ {
dst = append(dst, indentBytes...)
}
dst, cursor, err = indentValue(dst, src, indentNum, cursor, prefix, indentBytes, escape)
if err != nil {
return nil, 0, err
}
cursor = skipWhiteSpace(src, cursor)
switch src[cursor] {
case ']':
dst = append(append(dst, '\n'), prefix...)
for i := 0; i < indentNum-1; i++ {
dst = append(dst, indentBytes...)
}
dst = append(dst, ']')
cursor++
return dst, cursor, nil
case ',':
dst = append(dst, ',')
default:
return nil, 0, errors.ErrSyntax(
fmt.Sprintf("invalid character '%c' after array value", src[cursor]),
cursor+1,
)
}
cursor++
}
}

130
vendor/github.com/goccy/go-json/internal/encoder/int.go generated vendored Normal file
View file

@ -0,0 +1,130 @@
package encoder
import (
"unsafe"
)
var endianness int
func init() {
var b [2]byte
*(*uint16)(unsafe.Pointer(&b)) = uint16(0xABCD)
switch b[0] {
case 0xCD:
endianness = 0 // LE
case 0xAB:
endianness = 1 // BE
default:
panic("could not determine endianness")
}
}
// "00010203...96979899" cast to []uint16
var intLELookup = [100]uint16{
0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530, 0x3630, 0x3730, 0x3830, 0x3930,
0x3031, 0x3131, 0x3231, 0x3331, 0x3431, 0x3531, 0x3631, 0x3731, 0x3831, 0x3931,
0x3032, 0x3132, 0x3232, 0x3332, 0x3432, 0x3532, 0x3632, 0x3732, 0x3832, 0x3932,
0x3033, 0x3133, 0x3233, 0x3333, 0x3433, 0x3533, 0x3633, 0x3733, 0x3833, 0x3933,
0x3034, 0x3134, 0x3234, 0x3334, 0x3434, 0x3534, 0x3634, 0x3734, 0x3834, 0x3934,
0x3035, 0x3135, 0x3235, 0x3335, 0x3435, 0x3535, 0x3635, 0x3735, 0x3835, 0x3935,
0x3036, 0x3136, 0x3236, 0x3336, 0x3436, 0x3536, 0x3636, 0x3736, 0x3836, 0x3936,
0x3037, 0x3137, 0x3237, 0x3337, 0x3437, 0x3537, 0x3637, 0x3737, 0x3837, 0x3937,
0x3038, 0x3138, 0x3238, 0x3338, 0x3438, 0x3538, 0x3638, 0x3738, 0x3838, 0x3938,
0x3039, 0x3139, 0x3239, 0x3339, 0x3439, 0x3539, 0x3639, 0x3739, 0x3839, 0x3939,
}
var intBELookup = [100]uint16{
0x3030, 0x3031, 0x3032, 0x3033, 0x3034, 0x3035, 0x3036, 0x3037, 0x3038, 0x3039,
0x3130, 0x3131, 0x3132, 0x3133, 0x3134, 0x3135, 0x3136, 0x3137, 0x3138, 0x3139,
0x3230, 0x3231, 0x3232, 0x3233, 0x3234, 0x3235, 0x3236, 0x3237, 0x3238, 0x3239,
0x3330, 0x3331, 0x3332, 0x3333, 0x3334, 0x3335, 0x3336, 0x3337, 0x3338, 0x3339,
0x3430, 0x3431, 0x3432, 0x3433, 0x3434, 0x3435, 0x3436, 0x3437, 0x3438, 0x3439,
0x3530, 0x3531, 0x3532, 0x3533, 0x3534, 0x3535, 0x3536, 0x3537, 0x3538, 0x3539,
0x3630, 0x3631, 0x3632, 0x3633, 0x3634, 0x3635, 0x3636, 0x3637, 0x3638, 0x3639,
0x3730, 0x3731, 0x3732, 0x3733, 0x3734, 0x3735, 0x3736, 0x3737, 0x3738, 0x3739,
0x3830, 0x3831, 0x3832, 0x3833, 0x3834, 0x3835, 0x3836, 0x3837, 0x3838, 0x3839,
0x3930, 0x3931, 0x3932, 0x3933, 0x3934, 0x3935, 0x3936, 0x3937, 0x3938, 0x3939,
}
var intLookup = [2]*[100]uint16{&intLELookup, &intBELookup}
func numMask(numBitSize uint8) uint64 {
return 1<<numBitSize - 1
}
func AppendInt(_ *RuntimeContext, out []byte, u64 uint64, code *Opcode) []byte {
mask := numMask(code.NumBitSize)
n := u64 & mask
negative := (u64>>(code.NumBitSize-1))&1 == 1
if !negative {
if n < 10 {
return append(out, byte(n+'0'))
} else if n < 100 {
u := intLELookup[n]
return append(out, byte(u), byte(u>>8))
}
} else {
n = -n & mask
}
lookup := intLookup[endianness]
var b [22]byte
u := (*[11]uint16)(unsafe.Pointer(&b))
i := 11
for n >= 100 {
j := n % 100
n /= 100
i--
u[i] = lookup[j]
}
i--
u[i] = lookup[n]
i *= 2 // convert to byte index
if n < 10 {
i++ // remove leading zero
}
if negative {
i--
b[i] = '-'
}
return append(out, b[i:]...)
}
func AppendUint(_ *RuntimeContext, out []byte, u64 uint64, code *Opcode) []byte {
mask := numMask(code.NumBitSize)
n := u64 & mask
if n < 10 {
return append(out, byte(n+'0'))
} else if n < 100 {
u := intLELookup[n]
return append(out, byte(u), byte(u>>8))
}
lookup := intLookup[endianness]
var b [22]byte
u := (*[11]uint16)(unsafe.Pointer(&b))
i := 11
for n >= 100 {
j := n % 100
n /= 100
i--
u[i] = lookup[j]
}
i--
u[i] = lookup[n]
i *= 2 // convert to byte index
if n < 10 {
i++ // remove leading zero
}
return append(out, b[i:]...)
}

View file

@ -0,0 +1,8 @@
// +build !go1.13
package encoder
import "unsafe"
//go:linkname MapIterValue reflect.mapitervalue
func MapIterValue(it unsafe.Pointer) unsafe.Pointer

View file

@ -0,0 +1,8 @@
// +build go1.13
package encoder
import "unsafe"
//go:linkname MapIterValue reflect.mapiterelem
func MapIterValue(it unsafe.Pointer) unsafe.Pointer

View file

@ -0,0 +1,766 @@
package encoder
import (
"fmt"
"strings"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
const uintptrSize = 4 << (^uintptr(0) >> 63)
type OpFlags uint16
const (
AnonymousHeadFlags OpFlags = 1 << 0
AnonymousKeyFlags OpFlags = 1 << 1
IndirectFlags OpFlags = 1 << 2
IsTaggedKeyFlags OpFlags = 1 << 3
NilCheckFlags OpFlags = 1 << 4
AddrForMarshalerFlags OpFlags = 1 << 5
IsNextOpPtrTypeFlags OpFlags = 1 << 6
IsNilableTypeFlags OpFlags = 1 << 7
MarshalerContextFlags OpFlags = 1 << 8
)
type Opcode struct {
Op OpType // operation type
Idx uint32 // offset to access ptr
Next *Opcode // next opcode
End *Opcode // array/slice/struct/map end
NextField *Opcode // next struct field
Key string // struct field key
Offset uint32 // offset size from struct header
PtrNum uint8 // pointer number: e.g. double pointer is 2.
NumBitSize uint8
Flags OpFlags
Type *runtime.Type // go type
PrevField *Opcode // prev struct field
Jmp *CompiledCode // for recursive call
ElemIdx uint32 // offset to access array/slice/map elem
Length uint32 // offset to access slice/map length or array length
MapIter uint32 // offset to access map iterator
MapPos uint32 // offset to access position list for sorted map
Indent uint32 // indent number
Size uint32 // array/slice elem size
DisplayIdx uint32 // opcode index
DisplayKey string // key text to display
}
func (c *Opcode) MaxIdx() uint32 {
max := uint32(0)
for _, value := range []uint32{
c.Idx,
c.ElemIdx,
c.Length,
c.MapIter,
c.MapPos,
c.Size,
} {
if max < value {
max = value
}
}
return max
}
func (c *Opcode) ToHeaderType(isString bool) OpType {
switch c.Op {
case OpInt:
if isString {
return OpStructHeadIntString
}
return OpStructHeadInt
case OpIntPtr:
if isString {
return OpStructHeadIntPtrString
}
return OpStructHeadIntPtr
case OpUint:
if isString {
return OpStructHeadUintString
}
return OpStructHeadUint
case OpUintPtr:
if isString {
return OpStructHeadUintPtrString
}
return OpStructHeadUintPtr
case OpFloat32:
if isString {
return OpStructHeadFloat32String
}
return OpStructHeadFloat32
case OpFloat32Ptr:
if isString {
return OpStructHeadFloat32PtrString
}
return OpStructHeadFloat32Ptr
case OpFloat64:
if isString {
return OpStructHeadFloat64String
}
return OpStructHeadFloat64
case OpFloat64Ptr:
if isString {
return OpStructHeadFloat64PtrString
}
return OpStructHeadFloat64Ptr
case OpString:
if isString {
return OpStructHeadStringString
}
return OpStructHeadString
case OpStringPtr:
if isString {
return OpStructHeadStringPtrString
}
return OpStructHeadStringPtr
case OpNumber:
if isString {
return OpStructHeadNumberString
}
return OpStructHeadNumber
case OpNumberPtr:
if isString {
return OpStructHeadNumberPtrString
}
return OpStructHeadNumberPtr
case OpBool:
if isString {
return OpStructHeadBoolString
}
return OpStructHeadBool
case OpBoolPtr:
if isString {
return OpStructHeadBoolPtrString
}
return OpStructHeadBoolPtr
case OpBytes:
return OpStructHeadBytes
case OpBytesPtr:
return OpStructHeadBytesPtr
case OpMap:
return OpStructHeadMap
case OpMapPtr:
c.Op = OpMap
return OpStructHeadMapPtr
case OpArray:
return OpStructHeadArray
case OpArrayPtr:
c.Op = OpArray
return OpStructHeadArrayPtr
case OpSlice:
return OpStructHeadSlice
case OpSlicePtr:
c.Op = OpSlice
return OpStructHeadSlicePtr
case OpMarshalJSON:
return OpStructHeadMarshalJSON
case OpMarshalJSONPtr:
return OpStructHeadMarshalJSONPtr
case OpMarshalText:
return OpStructHeadMarshalText
case OpMarshalTextPtr:
return OpStructHeadMarshalTextPtr
}
return OpStructHead
}
func (c *Opcode) ToFieldType(isString bool) OpType {
switch c.Op {
case OpInt:
if isString {
return OpStructFieldIntString
}
return OpStructFieldInt
case OpIntPtr:
if isString {
return OpStructFieldIntPtrString
}
return OpStructFieldIntPtr
case OpUint:
if isString {
return OpStructFieldUintString
}
return OpStructFieldUint
case OpUintPtr:
if isString {
return OpStructFieldUintPtrString
}
return OpStructFieldUintPtr
case OpFloat32:
if isString {
return OpStructFieldFloat32String
}
return OpStructFieldFloat32
case OpFloat32Ptr:
if isString {
return OpStructFieldFloat32PtrString
}
return OpStructFieldFloat32Ptr
case OpFloat64:
if isString {
return OpStructFieldFloat64String
}
return OpStructFieldFloat64
case OpFloat64Ptr:
if isString {
return OpStructFieldFloat64PtrString
}
return OpStructFieldFloat64Ptr
case OpString:
if isString {
return OpStructFieldStringString
}
return OpStructFieldString
case OpStringPtr:
if isString {
return OpStructFieldStringPtrString
}
return OpStructFieldStringPtr
case OpNumber:
if isString {
return OpStructFieldNumberString
}
return OpStructFieldNumber
case OpNumberPtr:
if isString {
return OpStructFieldNumberPtrString
}
return OpStructFieldNumberPtr
case OpBool:
if isString {
return OpStructFieldBoolString
}
return OpStructFieldBool
case OpBoolPtr:
if isString {
return OpStructFieldBoolPtrString
}
return OpStructFieldBoolPtr
case OpBytes:
return OpStructFieldBytes
case OpBytesPtr:
return OpStructFieldBytesPtr
case OpMap:
return OpStructFieldMap
case OpMapPtr:
c.Op = OpMap
return OpStructFieldMapPtr
case OpArray:
return OpStructFieldArray
case OpArrayPtr:
c.Op = OpArray
return OpStructFieldArrayPtr
case OpSlice:
return OpStructFieldSlice
case OpSlicePtr:
c.Op = OpSlice
return OpStructFieldSlicePtr
case OpMarshalJSON:
return OpStructFieldMarshalJSON
case OpMarshalJSONPtr:
return OpStructFieldMarshalJSONPtr
case OpMarshalText:
return OpStructFieldMarshalText
case OpMarshalTextPtr:
return OpStructFieldMarshalTextPtr
}
return OpStructField
}
func newOpCode(ctx *compileContext, op OpType) *Opcode {
return newOpCodeWithNext(ctx, op, newEndOp(ctx))
}
func opcodeOffset(idx int) uint32 {
return uint32(idx) * uintptrSize
}
func copyOpcode(code *Opcode) *Opcode {
codeMap := map[uintptr]*Opcode{}
return code.copy(codeMap)
}
func setTotalLengthToInterfaceOp(code *Opcode) {
c := code
for c.Op != OpEnd && c.Op != OpInterfaceEnd {
if c.Op == OpInterface {
c.Length = uint32(code.TotalLength())
}
switch c.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
c = c.End
default:
c = c.Next
}
}
}
func ToEndCode(code *Opcode) *Opcode {
c := code
for c.Op != OpEnd && c.Op != OpInterfaceEnd {
switch c.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
c = c.End
default:
c = c.Next
}
}
return c
}
func copyToInterfaceOpcode(code *Opcode) *Opcode {
copied := copyOpcode(code)
c := copied
c = ToEndCode(c)
c.Idx += uintptrSize
c.ElemIdx = c.Idx + uintptrSize
c.Length = c.Idx + 2*uintptrSize
c.Op = OpInterfaceEnd
return copied
}
func newOpCodeWithNext(ctx *compileContext, op OpType, next *Opcode) *Opcode {
return &Opcode{
Op: op,
Idx: opcodeOffset(ctx.ptrIndex),
Next: next,
Type: ctx.typ,
DisplayIdx: ctx.opcodeIndex,
Indent: ctx.indent,
}
}
func newEndOp(ctx *compileContext) *Opcode {
return newOpCodeWithNext(ctx, OpEnd, nil)
}
func (c *Opcode) copy(codeMap map[uintptr]*Opcode) *Opcode {
if c == nil {
return nil
}
addr := uintptr(unsafe.Pointer(c))
if code, exists := codeMap[addr]; exists {
return code
}
copied := &Opcode{
Op: c.Op,
Key: c.Key,
PtrNum: c.PtrNum,
NumBitSize: c.NumBitSize,
Flags: c.Flags,
Idx: c.Idx,
Offset: c.Offset,
Type: c.Type,
DisplayIdx: c.DisplayIdx,
DisplayKey: c.DisplayKey,
ElemIdx: c.ElemIdx,
Length: c.Length,
MapIter: c.MapIter,
MapPos: c.MapPos,
Size: c.Size,
Indent: c.Indent,
}
codeMap[addr] = copied
copied.End = c.End.copy(codeMap)
copied.PrevField = c.PrevField.copy(codeMap)
copied.NextField = c.NextField.copy(codeMap)
copied.Next = c.Next.copy(codeMap)
copied.Jmp = c.Jmp
return copied
}
func (c *Opcode) BeforeLastCode() *Opcode {
code := c
for {
var nextCode *Opcode
switch code.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
nextCode = code.End
default:
nextCode = code.Next
}
if nextCode.Op == OpEnd {
return code
}
code = nextCode
}
}
func (c *Opcode) TotalLength() int {
var idx int
code := c
for code.Op != OpEnd && code.Op != OpInterfaceEnd {
maxIdx := int(code.MaxIdx() / uintptrSize)
if idx < maxIdx {
idx = maxIdx
}
if code.Op == OpRecursiveEnd {
break
}
switch code.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
code = code.End
default:
code = code.Next
}
}
maxIdx := int(code.MaxIdx() / uintptrSize)
if idx < maxIdx {
idx = maxIdx
}
return idx + 1
}
func (c *Opcode) decOpcodeIndex() {
for code := c; code.Op != OpEnd; {
code.DisplayIdx--
if code.Idx > 0 {
code.Idx -= uintptrSize
}
if code.ElemIdx > 0 {
code.ElemIdx -= uintptrSize
}
if code.MapIter > 0 {
code.MapIter -= uintptrSize
}
if code.Length > 0 && code.Op.CodeType() != CodeArrayHead && code.Op.CodeType() != CodeArrayElem {
code.Length -= uintptrSize
}
switch code.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
code = code.End
default:
code = code.Next
}
}
}
func (c *Opcode) decIndent() {
for code := c; code.Op != OpEnd; {
code.Indent--
switch code.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
code = code.End
default:
code = code.Next
}
}
}
func (c *Opcode) dumpHead(code *Opcode) string {
var length uint32
if code.Op.CodeType() == CodeArrayHead {
length = code.Length
} else {
length = code.Length / uintptrSize
}
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][elemIdx:%d][length:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.ElemIdx/uintptrSize,
length,
)
}
func (c *Opcode) dumpMapHead(code *Opcode) string {
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][elemIdx:%d][length:%d][mapIter:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.ElemIdx/uintptrSize,
code.Length/uintptrSize,
code.MapIter/uintptrSize,
)
}
func (c *Opcode) dumpMapEnd(code *Opcode) string {
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][mapPos:%d][length:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.MapPos/uintptrSize,
code.Length/uintptrSize,
)
}
func (c *Opcode) dumpElem(code *Opcode) string {
var length uint32
if code.Op.CodeType() == CodeArrayElem {
length = code.Length
} else {
length = code.Length / uintptrSize
}
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][elemIdx:%d][length:%d][size:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.ElemIdx/uintptrSize,
length,
code.Size,
)
}
func (c *Opcode) dumpField(code *Opcode) string {
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][key:%s][offset:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.DisplayKey,
code.Offset,
)
}
func (c *Opcode) dumpKey(code *Opcode) string {
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][elemIdx:%d][length:%d][mapIter:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.ElemIdx/uintptrSize,
code.Length/uintptrSize,
code.MapIter/uintptrSize,
)
}
func (c *Opcode) dumpValue(code *Opcode) string {
return fmt.Sprintf(
`[%d]%s%s ([idx:%d][mapIter:%d])`,
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
code.MapIter/uintptrSize,
)
}
func (c *Opcode) Dump() string {
codes := []string{}
for code := c; code.Op != OpEnd && code.Op != OpInterfaceEnd; {
switch code.Op.CodeType() {
case CodeSliceHead:
codes = append(codes, c.dumpHead(code))
code = code.Next
case CodeMapHead:
codes = append(codes, c.dumpMapHead(code))
code = code.Next
case CodeArrayElem, CodeSliceElem:
codes = append(codes, c.dumpElem(code))
code = code.End
case CodeMapKey:
codes = append(codes, c.dumpKey(code))
code = code.End
case CodeMapValue:
codes = append(codes, c.dumpValue(code))
code = code.Next
case CodeMapEnd:
codes = append(codes, c.dumpMapEnd(code))
code = code.Next
case CodeStructField:
codes = append(codes, c.dumpField(code))
code = code.Next
case CodeStructEnd:
codes = append(codes, c.dumpField(code))
code = code.Next
default:
codes = append(codes, fmt.Sprintf(
"[%d]%s%s ([idx:%d])",
code.DisplayIdx,
strings.Repeat("-", int(code.Indent)),
code.Op,
code.Idx/uintptrSize,
))
code = code.Next
}
}
return strings.Join(codes, "\n")
}
func prevField(code *Opcode, removedFields map[*Opcode]struct{}) *Opcode {
if _, exists := removedFields[code]; exists {
return prevField(code.PrevField, removedFields)
}
return code
}
func nextField(code *Opcode, removedFields map[*Opcode]struct{}) *Opcode {
if _, exists := removedFields[code]; exists {
return nextField(code.NextField, removedFields)
}
return code
}
func linkPrevToNextField(cur *Opcode, removedFields map[*Opcode]struct{}) {
prev := prevField(cur.PrevField, removedFields)
prev.NextField = nextField(cur.NextField, removedFields)
code := prev
fcode := cur
for {
var nextCode *Opcode
switch code.Op.CodeType() {
case CodeArrayElem, CodeSliceElem, CodeMapKey:
nextCode = code.End
default:
nextCode = code.Next
}
if nextCode == fcode {
code.Next = fcode.Next
break
} else if nextCode.Op == OpEnd {
break
}
code = nextCode
}
}
func newSliceHeaderCode(ctx *compileContext) *Opcode {
idx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
elemIdx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
length := opcodeOffset(ctx.ptrIndex)
return &Opcode{
Op: OpSlice,
Idx: idx,
DisplayIdx: ctx.opcodeIndex,
ElemIdx: elemIdx,
Length: length,
Indent: ctx.indent,
}
}
func newSliceElemCode(ctx *compileContext, head *Opcode, size uintptr) *Opcode {
return &Opcode{
Op: OpSliceElem,
Idx: head.Idx,
DisplayIdx: ctx.opcodeIndex,
ElemIdx: head.ElemIdx,
Length: head.Length,
Indent: ctx.indent,
Size: uint32(size),
}
}
func newArrayHeaderCode(ctx *compileContext, alen int) *Opcode {
idx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
elemIdx := opcodeOffset(ctx.ptrIndex)
return &Opcode{
Op: OpArray,
Idx: idx,
DisplayIdx: ctx.opcodeIndex,
ElemIdx: elemIdx,
Indent: ctx.indent,
Length: uint32(alen),
}
}
func newArrayElemCode(ctx *compileContext, head *Opcode, length int, size uintptr) *Opcode {
return &Opcode{
Op: OpArrayElem,
Idx: head.Idx,
DisplayIdx: ctx.opcodeIndex,
ElemIdx: head.ElemIdx,
Length: uint32(length),
Indent: ctx.indent,
Size: uint32(size),
}
}
func newMapHeaderCode(ctx *compileContext) *Opcode {
idx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
elemIdx := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
length := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
mapIter := opcodeOffset(ctx.ptrIndex)
return &Opcode{
Op: OpMap,
Idx: idx,
Type: ctx.typ,
DisplayIdx: ctx.opcodeIndex,
ElemIdx: elemIdx,
Length: length,
MapIter: mapIter,
Indent: ctx.indent,
}
}
func newMapKeyCode(ctx *compileContext, head *Opcode) *Opcode {
return &Opcode{
Op: OpMapKey,
Idx: opcodeOffset(ctx.ptrIndex),
DisplayIdx: ctx.opcodeIndex,
ElemIdx: head.ElemIdx,
Length: head.Length,
MapIter: head.MapIter,
Indent: ctx.indent,
}
}
func newMapValueCode(ctx *compileContext, head *Opcode) *Opcode {
return &Opcode{
Op: OpMapValue,
Idx: opcodeOffset(ctx.ptrIndex),
DisplayIdx: ctx.opcodeIndex,
ElemIdx: head.ElemIdx,
Length: head.Length,
MapIter: head.MapIter,
Indent: ctx.indent,
}
}
func newMapEndCode(ctx *compileContext, head *Opcode) *Opcode {
mapPos := opcodeOffset(ctx.ptrIndex)
ctx.incPtrIndex()
idx := opcodeOffset(ctx.ptrIndex)
return &Opcode{
Op: OpMapEnd,
Idx: idx,
Next: newEndOp(ctx),
DisplayIdx: ctx.opcodeIndex,
Length: head.Length,
MapPos: mapPos,
Indent: ctx.indent,
}
}
func newInterfaceCode(ctx *compileContext) *Opcode {
return &Opcode{
Op: OpInterface,
Idx: opcodeOffset(ctx.ptrIndex),
Next: newEndOp(ctx),
Type: ctx.typ,
DisplayIdx: ctx.opcodeIndex,
Indent: ctx.indent,
}
}
func newRecursiveCode(ctx *compileContext, jmp *CompiledCode) *Opcode {
return &Opcode{
Op: OpRecursive,
Idx: opcodeOffset(ctx.ptrIndex),
Next: newEndOp(ctx),
Type: ctx.typ,
DisplayIdx: ctx.opcodeIndex,
Indent: ctx.indent,
Jmp: jmp,
}
}

View file

@ -0,0 +1,41 @@
package encoder
import "context"
type OptionFlag uint8
const (
HTMLEscapeOption OptionFlag = 1 << iota
IndentOption
UnorderedMapOption
DebugOption
ColorizeOption
ContextOption
)
type Option struct {
Flag OptionFlag
ColorScheme *ColorScheme
Context context.Context
}
type EncodeFormat struct {
Header string
Footer string
}
type EncodeFormatScheme struct {
Int EncodeFormat
Uint EncodeFormat
Float EncodeFormat
Bool EncodeFormat
String EncodeFormat
Binary EncodeFormat
ObjectKey EncodeFormat
Null EncodeFormat
}
type (
ColorScheme = EncodeFormatScheme
ColorFormat = EncodeFormat
)

View file

@ -0,0 +1,934 @@
// Code generated by internal/cmd/generator. DO NOT EDIT!
package encoder
import (
"strings"
)
type CodeType int
const (
CodeOp CodeType = 0
CodeArrayHead CodeType = 1
CodeArrayElem CodeType = 2
CodeSliceHead CodeType = 3
CodeSliceElem CodeType = 4
CodeMapHead CodeType = 5
CodeMapKey CodeType = 6
CodeMapValue CodeType = 7
CodeMapEnd CodeType = 8
CodeRecursive CodeType = 9
CodeStructField CodeType = 10
CodeStructEnd CodeType = 11
)
var opTypeStrings = [401]string{
"End",
"Interface",
"Ptr",
"SliceElem",
"SliceEnd",
"ArrayElem",
"ArrayEnd",
"MapKey",
"MapValue",
"MapEnd",
"Recursive",
"RecursivePtr",
"RecursiveEnd",
"InterfaceEnd",
"StructAnonymousEnd",
"Int",
"Uint",
"Float32",
"Float64",
"Bool",
"String",
"Bytes",
"Number",
"Array",
"Map",
"Slice",
"Struct",
"MarshalJSON",
"MarshalText",
"IntString",
"UintString",
"Float32String",
"Float64String",
"BoolString",
"StringString",
"NumberString",
"IntPtr",
"UintPtr",
"Float32Ptr",
"Float64Ptr",
"BoolPtr",
"StringPtr",
"BytesPtr",
"NumberPtr",
"ArrayPtr",
"MapPtr",
"SlicePtr",
"MarshalJSONPtr",
"MarshalTextPtr",
"InterfacePtr",
"IntPtrString",
"UintPtrString",
"Float32PtrString",
"Float64PtrString",
"BoolPtrString",
"StringPtrString",
"NumberPtrString",
"StructHeadInt",
"StructHeadOmitEmptyInt",
"StructPtrHeadInt",
"StructPtrHeadOmitEmptyInt",
"StructHeadUint",
"StructHeadOmitEmptyUint",
"StructPtrHeadUint",
"StructPtrHeadOmitEmptyUint",
"StructHeadFloat32",
"StructHeadOmitEmptyFloat32",
"StructPtrHeadFloat32",
"StructPtrHeadOmitEmptyFloat32",
"StructHeadFloat64",
"StructHeadOmitEmptyFloat64",
"StructPtrHeadFloat64",
"StructPtrHeadOmitEmptyFloat64",
"StructHeadBool",
"StructHeadOmitEmptyBool",
"StructPtrHeadBool",
"StructPtrHeadOmitEmptyBool",
"StructHeadString",
"StructHeadOmitEmptyString",
"StructPtrHeadString",
"StructPtrHeadOmitEmptyString",
"StructHeadBytes",
"StructHeadOmitEmptyBytes",
"StructPtrHeadBytes",
"StructPtrHeadOmitEmptyBytes",
"StructHeadNumber",
"StructHeadOmitEmptyNumber",
"StructPtrHeadNumber",
"StructPtrHeadOmitEmptyNumber",
"StructHeadArray",
"StructHeadOmitEmptyArray",
"StructPtrHeadArray",
"StructPtrHeadOmitEmptyArray",
"StructHeadMap",
"StructHeadOmitEmptyMap",
"StructPtrHeadMap",
"StructPtrHeadOmitEmptyMap",
"StructHeadSlice",
"StructHeadOmitEmptySlice",
"StructPtrHeadSlice",
"StructPtrHeadOmitEmptySlice",
"StructHeadStruct",
"StructHeadOmitEmptyStruct",
"StructPtrHeadStruct",
"StructPtrHeadOmitEmptyStruct",
"StructHeadMarshalJSON",
"StructHeadOmitEmptyMarshalJSON",
"StructPtrHeadMarshalJSON",
"StructPtrHeadOmitEmptyMarshalJSON",
"StructHeadMarshalText",
"StructHeadOmitEmptyMarshalText",
"StructPtrHeadMarshalText",
"StructPtrHeadOmitEmptyMarshalText",
"StructHeadIntString",
"StructHeadOmitEmptyIntString",
"StructPtrHeadIntString",
"StructPtrHeadOmitEmptyIntString",
"StructHeadUintString",
"StructHeadOmitEmptyUintString",
"StructPtrHeadUintString",
"StructPtrHeadOmitEmptyUintString",
"StructHeadFloat32String",
"StructHeadOmitEmptyFloat32String",
"StructPtrHeadFloat32String",
"StructPtrHeadOmitEmptyFloat32String",
"StructHeadFloat64String",
"StructHeadOmitEmptyFloat64String",
"StructPtrHeadFloat64String",
"StructPtrHeadOmitEmptyFloat64String",
"StructHeadBoolString",
"StructHeadOmitEmptyBoolString",
"StructPtrHeadBoolString",
"StructPtrHeadOmitEmptyBoolString",
"StructHeadStringString",
"StructHeadOmitEmptyStringString",
"StructPtrHeadStringString",
"StructPtrHeadOmitEmptyStringString",
"StructHeadNumberString",
"StructHeadOmitEmptyNumberString",
"StructPtrHeadNumberString",
"StructPtrHeadOmitEmptyNumberString",
"StructHeadIntPtr",
"StructHeadOmitEmptyIntPtr",
"StructPtrHeadIntPtr",
"StructPtrHeadOmitEmptyIntPtr",
"StructHeadUintPtr",
"StructHeadOmitEmptyUintPtr",
"StructPtrHeadUintPtr",
"StructPtrHeadOmitEmptyUintPtr",
"StructHeadFloat32Ptr",
"StructHeadOmitEmptyFloat32Ptr",
"StructPtrHeadFloat32Ptr",
"StructPtrHeadOmitEmptyFloat32Ptr",
"StructHeadFloat64Ptr",
"StructHeadOmitEmptyFloat64Ptr",
"StructPtrHeadFloat64Ptr",
"StructPtrHeadOmitEmptyFloat64Ptr",
"StructHeadBoolPtr",
"StructHeadOmitEmptyBoolPtr",
"StructPtrHeadBoolPtr",
"StructPtrHeadOmitEmptyBoolPtr",
"StructHeadStringPtr",
"StructHeadOmitEmptyStringPtr",
"StructPtrHeadStringPtr",
"StructPtrHeadOmitEmptyStringPtr",
"StructHeadBytesPtr",
"StructHeadOmitEmptyBytesPtr",
"StructPtrHeadBytesPtr",
"StructPtrHeadOmitEmptyBytesPtr",
"StructHeadNumberPtr",
"StructHeadOmitEmptyNumberPtr",
"StructPtrHeadNumberPtr",
"StructPtrHeadOmitEmptyNumberPtr",
"StructHeadArrayPtr",
"StructHeadOmitEmptyArrayPtr",
"StructPtrHeadArrayPtr",
"StructPtrHeadOmitEmptyArrayPtr",
"StructHeadMapPtr",
"StructHeadOmitEmptyMapPtr",
"StructPtrHeadMapPtr",
"StructPtrHeadOmitEmptyMapPtr",
"StructHeadSlicePtr",
"StructHeadOmitEmptySlicePtr",
"StructPtrHeadSlicePtr",
"StructPtrHeadOmitEmptySlicePtr",
"StructHeadMarshalJSONPtr",
"StructHeadOmitEmptyMarshalJSONPtr",
"StructPtrHeadMarshalJSONPtr",
"StructPtrHeadOmitEmptyMarshalJSONPtr",
"StructHeadMarshalTextPtr",
"StructHeadOmitEmptyMarshalTextPtr",
"StructPtrHeadMarshalTextPtr",
"StructPtrHeadOmitEmptyMarshalTextPtr",
"StructHeadInterfacePtr",
"StructHeadOmitEmptyInterfacePtr",
"StructPtrHeadInterfacePtr",
"StructPtrHeadOmitEmptyInterfacePtr",
"StructHeadIntPtrString",
"StructHeadOmitEmptyIntPtrString",
"StructPtrHeadIntPtrString",
"StructPtrHeadOmitEmptyIntPtrString",
"StructHeadUintPtrString",
"StructHeadOmitEmptyUintPtrString",
"StructPtrHeadUintPtrString",
"StructPtrHeadOmitEmptyUintPtrString",
"StructHeadFloat32PtrString",
"StructHeadOmitEmptyFloat32PtrString",
"StructPtrHeadFloat32PtrString",
"StructPtrHeadOmitEmptyFloat32PtrString",
"StructHeadFloat64PtrString",
"StructHeadOmitEmptyFloat64PtrString",
"StructPtrHeadFloat64PtrString",
"StructPtrHeadOmitEmptyFloat64PtrString",
"StructHeadBoolPtrString",
"StructHeadOmitEmptyBoolPtrString",
"StructPtrHeadBoolPtrString",
"StructPtrHeadOmitEmptyBoolPtrString",
"StructHeadStringPtrString",
"StructHeadOmitEmptyStringPtrString",
"StructPtrHeadStringPtrString",
"StructPtrHeadOmitEmptyStringPtrString",
"StructHeadNumberPtrString",
"StructHeadOmitEmptyNumberPtrString",
"StructPtrHeadNumberPtrString",
"StructPtrHeadOmitEmptyNumberPtrString",
"StructHead",
"StructHeadOmitEmpty",
"StructPtrHead",
"StructPtrHeadOmitEmpty",
"StructFieldInt",
"StructFieldOmitEmptyInt",
"StructEndInt",
"StructEndOmitEmptyInt",
"StructFieldUint",
"StructFieldOmitEmptyUint",
"StructEndUint",
"StructEndOmitEmptyUint",
"StructFieldFloat32",
"StructFieldOmitEmptyFloat32",
"StructEndFloat32",
"StructEndOmitEmptyFloat32",
"StructFieldFloat64",
"StructFieldOmitEmptyFloat64",
"StructEndFloat64",
"StructEndOmitEmptyFloat64",
"StructFieldBool",
"StructFieldOmitEmptyBool",
"StructEndBool",
"StructEndOmitEmptyBool",
"StructFieldString",
"StructFieldOmitEmptyString",
"StructEndString",
"StructEndOmitEmptyString",
"StructFieldBytes",
"StructFieldOmitEmptyBytes",
"StructEndBytes",
"StructEndOmitEmptyBytes",
"StructFieldNumber",
"StructFieldOmitEmptyNumber",
"StructEndNumber",
"StructEndOmitEmptyNumber",
"StructFieldArray",
"StructFieldOmitEmptyArray",
"StructEndArray",
"StructEndOmitEmptyArray",
"StructFieldMap",
"StructFieldOmitEmptyMap",
"StructEndMap",
"StructEndOmitEmptyMap",
"StructFieldSlice",
"StructFieldOmitEmptySlice",
"StructEndSlice",
"StructEndOmitEmptySlice",
"StructFieldStruct",
"StructFieldOmitEmptyStruct",
"StructEndStruct",
"StructEndOmitEmptyStruct",
"StructFieldMarshalJSON",
"StructFieldOmitEmptyMarshalJSON",
"StructEndMarshalJSON",
"StructEndOmitEmptyMarshalJSON",
"StructFieldMarshalText",
"StructFieldOmitEmptyMarshalText",
"StructEndMarshalText",
"StructEndOmitEmptyMarshalText",
"StructFieldIntString",
"StructFieldOmitEmptyIntString",
"StructEndIntString",
"StructEndOmitEmptyIntString",
"StructFieldUintString",
"StructFieldOmitEmptyUintString",
"StructEndUintString",
"StructEndOmitEmptyUintString",
"StructFieldFloat32String",
"StructFieldOmitEmptyFloat32String",
"StructEndFloat32String",
"StructEndOmitEmptyFloat32String",
"StructFieldFloat64String",
"StructFieldOmitEmptyFloat64String",
"StructEndFloat64String",
"StructEndOmitEmptyFloat64String",
"StructFieldBoolString",
"StructFieldOmitEmptyBoolString",
"StructEndBoolString",
"StructEndOmitEmptyBoolString",
"StructFieldStringString",
"StructFieldOmitEmptyStringString",
"StructEndStringString",
"StructEndOmitEmptyStringString",
"StructFieldNumberString",
"StructFieldOmitEmptyNumberString",
"StructEndNumberString",
"StructEndOmitEmptyNumberString",
"StructFieldIntPtr",
"StructFieldOmitEmptyIntPtr",
"StructEndIntPtr",
"StructEndOmitEmptyIntPtr",
"StructFieldUintPtr",
"StructFieldOmitEmptyUintPtr",
"StructEndUintPtr",
"StructEndOmitEmptyUintPtr",
"StructFieldFloat32Ptr",
"StructFieldOmitEmptyFloat32Ptr",
"StructEndFloat32Ptr",
"StructEndOmitEmptyFloat32Ptr",
"StructFieldFloat64Ptr",
"StructFieldOmitEmptyFloat64Ptr",
"StructEndFloat64Ptr",
"StructEndOmitEmptyFloat64Ptr",
"StructFieldBoolPtr",
"StructFieldOmitEmptyBoolPtr",
"StructEndBoolPtr",
"StructEndOmitEmptyBoolPtr",
"StructFieldStringPtr",
"StructFieldOmitEmptyStringPtr",
"StructEndStringPtr",
"StructEndOmitEmptyStringPtr",
"StructFieldBytesPtr",
"StructFieldOmitEmptyBytesPtr",
"StructEndBytesPtr",
"StructEndOmitEmptyBytesPtr",
"StructFieldNumberPtr",
"StructFieldOmitEmptyNumberPtr",
"StructEndNumberPtr",
"StructEndOmitEmptyNumberPtr",
"StructFieldArrayPtr",
"StructFieldOmitEmptyArrayPtr",
"StructEndArrayPtr",
"StructEndOmitEmptyArrayPtr",
"StructFieldMapPtr",
"StructFieldOmitEmptyMapPtr",
"StructEndMapPtr",
"StructEndOmitEmptyMapPtr",
"StructFieldSlicePtr",
"StructFieldOmitEmptySlicePtr",
"StructEndSlicePtr",
"StructEndOmitEmptySlicePtr",
"StructFieldMarshalJSONPtr",
"StructFieldOmitEmptyMarshalJSONPtr",
"StructEndMarshalJSONPtr",
"StructEndOmitEmptyMarshalJSONPtr",
"StructFieldMarshalTextPtr",
"StructFieldOmitEmptyMarshalTextPtr",
"StructEndMarshalTextPtr",
"StructEndOmitEmptyMarshalTextPtr",
"StructFieldInterfacePtr",
"StructFieldOmitEmptyInterfacePtr",
"StructEndInterfacePtr",
"StructEndOmitEmptyInterfacePtr",
"StructFieldIntPtrString",
"StructFieldOmitEmptyIntPtrString",
"StructEndIntPtrString",
"StructEndOmitEmptyIntPtrString",
"StructFieldUintPtrString",
"StructFieldOmitEmptyUintPtrString",
"StructEndUintPtrString",
"StructEndOmitEmptyUintPtrString",
"StructFieldFloat32PtrString",
"StructFieldOmitEmptyFloat32PtrString",
"StructEndFloat32PtrString",
"StructEndOmitEmptyFloat32PtrString",
"StructFieldFloat64PtrString",
"StructFieldOmitEmptyFloat64PtrString",
"StructEndFloat64PtrString",
"StructEndOmitEmptyFloat64PtrString",
"StructFieldBoolPtrString",
"StructFieldOmitEmptyBoolPtrString",
"StructEndBoolPtrString",
"StructEndOmitEmptyBoolPtrString",
"StructFieldStringPtrString",
"StructFieldOmitEmptyStringPtrString",
"StructEndStringPtrString",
"StructEndOmitEmptyStringPtrString",
"StructFieldNumberPtrString",
"StructFieldOmitEmptyNumberPtrString",
"StructEndNumberPtrString",
"StructEndOmitEmptyNumberPtrString",
"StructField",
"StructFieldOmitEmpty",
"StructEnd",
"StructEndOmitEmpty",
}
type OpType uint16
const (
OpEnd OpType = 0
OpInterface OpType = 1
OpPtr OpType = 2
OpSliceElem OpType = 3
OpSliceEnd OpType = 4
OpArrayElem OpType = 5
OpArrayEnd OpType = 6
OpMapKey OpType = 7
OpMapValue OpType = 8
OpMapEnd OpType = 9
OpRecursive OpType = 10
OpRecursivePtr OpType = 11
OpRecursiveEnd OpType = 12
OpInterfaceEnd OpType = 13
OpStructAnonymousEnd OpType = 14
OpInt OpType = 15
OpUint OpType = 16
OpFloat32 OpType = 17
OpFloat64 OpType = 18
OpBool OpType = 19
OpString OpType = 20
OpBytes OpType = 21
OpNumber OpType = 22
OpArray OpType = 23
OpMap OpType = 24
OpSlice OpType = 25
OpStruct OpType = 26
OpMarshalJSON OpType = 27
OpMarshalText OpType = 28
OpIntString OpType = 29
OpUintString OpType = 30
OpFloat32String OpType = 31
OpFloat64String OpType = 32
OpBoolString OpType = 33
OpStringString OpType = 34
OpNumberString OpType = 35
OpIntPtr OpType = 36
OpUintPtr OpType = 37
OpFloat32Ptr OpType = 38
OpFloat64Ptr OpType = 39
OpBoolPtr OpType = 40
OpStringPtr OpType = 41
OpBytesPtr OpType = 42
OpNumberPtr OpType = 43
OpArrayPtr OpType = 44
OpMapPtr OpType = 45
OpSlicePtr OpType = 46
OpMarshalJSONPtr OpType = 47
OpMarshalTextPtr OpType = 48
OpInterfacePtr OpType = 49
OpIntPtrString OpType = 50
OpUintPtrString OpType = 51
OpFloat32PtrString OpType = 52
OpFloat64PtrString OpType = 53
OpBoolPtrString OpType = 54
OpStringPtrString OpType = 55
OpNumberPtrString OpType = 56
OpStructHeadInt OpType = 57
OpStructHeadOmitEmptyInt OpType = 58
OpStructPtrHeadInt OpType = 59
OpStructPtrHeadOmitEmptyInt OpType = 60
OpStructHeadUint OpType = 61
OpStructHeadOmitEmptyUint OpType = 62
OpStructPtrHeadUint OpType = 63
OpStructPtrHeadOmitEmptyUint OpType = 64
OpStructHeadFloat32 OpType = 65
OpStructHeadOmitEmptyFloat32 OpType = 66
OpStructPtrHeadFloat32 OpType = 67
OpStructPtrHeadOmitEmptyFloat32 OpType = 68
OpStructHeadFloat64 OpType = 69
OpStructHeadOmitEmptyFloat64 OpType = 70
OpStructPtrHeadFloat64 OpType = 71
OpStructPtrHeadOmitEmptyFloat64 OpType = 72
OpStructHeadBool OpType = 73
OpStructHeadOmitEmptyBool OpType = 74
OpStructPtrHeadBool OpType = 75
OpStructPtrHeadOmitEmptyBool OpType = 76
OpStructHeadString OpType = 77
OpStructHeadOmitEmptyString OpType = 78
OpStructPtrHeadString OpType = 79
OpStructPtrHeadOmitEmptyString OpType = 80
OpStructHeadBytes OpType = 81
OpStructHeadOmitEmptyBytes OpType = 82
OpStructPtrHeadBytes OpType = 83
OpStructPtrHeadOmitEmptyBytes OpType = 84
OpStructHeadNumber OpType = 85
OpStructHeadOmitEmptyNumber OpType = 86
OpStructPtrHeadNumber OpType = 87
OpStructPtrHeadOmitEmptyNumber OpType = 88
OpStructHeadArray OpType = 89
OpStructHeadOmitEmptyArray OpType = 90
OpStructPtrHeadArray OpType = 91
OpStructPtrHeadOmitEmptyArray OpType = 92
OpStructHeadMap OpType = 93
OpStructHeadOmitEmptyMap OpType = 94
OpStructPtrHeadMap OpType = 95
OpStructPtrHeadOmitEmptyMap OpType = 96
OpStructHeadSlice OpType = 97
OpStructHeadOmitEmptySlice OpType = 98
OpStructPtrHeadSlice OpType = 99
OpStructPtrHeadOmitEmptySlice OpType = 100
OpStructHeadStruct OpType = 101
OpStructHeadOmitEmptyStruct OpType = 102
OpStructPtrHeadStruct OpType = 103
OpStructPtrHeadOmitEmptyStruct OpType = 104
OpStructHeadMarshalJSON OpType = 105
OpStructHeadOmitEmptyMarshalJSON OpType = 106
OpStructPtrHeadMarshalJSON OpType = 107
OpStructPtrHeadOmitEmptyMarshalJSON OpType = 108
OpStructHeadMarshalText OpType = 109
OpStructHeadOmitEmptyMarshalText OpType = 110
OpStructPtrHeadMarshalText OpType = 111
OpStructPtrHeadOmitEmptyMarshalText OpType = 112
OpStructHeadIntString OpType = 113
OpStructHeadOmitEmptyIntString OpType = 114
OpStructPtrHeadIntString OpType = 115
OpStructPtrHeadOmitEmptyIntString OpType = 116
OpStructHeadUintString OpType = 117
OpStructHeadOmitEmptyUintString OpType = 118
OpStructPtrHeadUintString OpType = 119
OpStructPtrHeadOmitEmptyUintString OpType = 120
OpStructHeadFloat32String OpType = 121
OpStructHeadOmitEmptyFloat32String OpType = 122
OpStructPtrHeadFloat32String OpType = 123
OpStructPtrHeadOmitEmptyFloat32String OpType = 124
OpStructHeadFloat64String OpType = 125
OpStructHeadOmitEmptyFloat64String OpType = 126
OpStructPtrHeadFloat64String OpType = 127
OpStructPtrHeadOmitEmptyFloat64String OpType = 128
OpStructHeadBoolString OpType = 129
OpStructHeadOmitEmptyBoolString OpType = 130
OpStructPtrHeadBoolString OpType = 131
OpStructPtrHeadOmitEmptyBoolString OpType = 132
OpStructHeadStringString OpType = 133
OpStructHeadOmitEmptyStringString OpType = 134
OpStructPtrHeadStringString OpType = 135
OpStructPtrHeadOmitEmptyStringString OpType = 136
OpStructHeadNumberString OpType = 137
OpStructHeadOmitEmptyNumberString OpType = 138
OpStructPtrHeadNumberString OpType = 139
OpStructPtrHeadOmitEmptyNumberString OpType = 140
OpStructHeadIntPtr OpType = 141
OpStructHeadOmitEmptyIntPtr OpType = 142
OpStructPtrHeadIntPtr OpType = 143
OpStructPtrHeadOmitEmptyIntPtr OpType = 144
OpStructHeadUintPtr OpType = 145
OpStructHeadOmitEmptyUintPtr OpType = 146
OpStructPtrHeadUintPtr OpType = 147
OpStructPtrHeadOmitEmptyUintPtr OpType = 148
OpStructHeadFloat32Ptr OpType = 149
OpStructHeadOmitEmptyFloat32Ptr OpType = 150
OpStructPtrHeadFloat32Ptr OpType = 151
OpStructPtrHeadOmitEmptyFloat32Ptr OpType = 152
OpStructHeadFloat64Ptr OpType = 153
OpStructHeadOmitEmptyFloat64Ptr OpType = 154
OpStructPtrHeadFloat64Ptr OpType = 155
OpStructPtrHeadOmitEmptyFloat64Ptr OpType = 156
OpStructHeadBoolPtr OpType = 157
OpStructHeadOmitEmptyBoolPtr OpType = 158
OpStructPtrHeadBoolPtr OpType = 159
OpStructPtrHeadOmitEmptyBoolPtr OpType = 160
OpStructHeadStringPtr OpType = 161
OpStructHeadOmitEmptyStringPtr OpType = 162
OpStructPtrHeadStringPtr OpType = 163
OpStructPtrHeadOmitEmptyStringPtr OpType = 164
OpStructHeadBytesPtr OpType = 165
OpStructHeadOmitEmptyBytesPtr OpType = 166
OpStructPtrHeadBytesPtr OpType = 167
OpStructPtrHeadOmitEmptyBytesPtr OpType = 168
OpStructHeadNumberPtr OpType = 169
OpStructHeadOmitEmptyNumberPtr OpType = 170
OpStructPtrHeadNumberPtr OpType = 171
OpStructPtrHeadOmitEmptyNumberPtr OpType = 172
OpStructHeadArrayPtr OpType = 173
OpStructHeadOmitEmptyArrayPtr OpType = 174
OpStructPtrHeadArrayPtr OpType = 175
OpStructPtrHeadOmitEmptyArrayPtr OpType = 176
OpStructHeadMapPtr OpType = 177
OpStructHeadOmitEmptyMapPtr OpType = 178
OpStructPtrHeadMapPtr OpType = 179
OpStructPtrHeadOmitEmptyMapPtr OpType = 180
OpStructHeadSlicePtr OpType = 181
OpStructHeadOmitEmptySlicePtr OpType = 182
OpStructPtrHeadSlicePtr OpType = 183
OpStructPtrHeadOmitEmptySlicePtr OpType = 184
OpStructHeadMarshalJSONPtr OpType = 185
OpStructHeadOmitEmptyMarshalJSONPtr OpType = 186
OpStructPtrHeadMarshalJSONPtr OpType = 187
OpStructPtrHeadOmitEmptyMarshalJSONPtr OpType = 188
OpStructHeadMarshalTextPtr OpType = 189
OpStructHeadOmitEmptyMarshalTextPtr OpType = 190
OpStructPtrHeadMarshalTextPtr OpType = 191
OpStructPtrHeadOmitEmptyMarshalTextPtr OpType = 192
OpStructHeadInterfacePtr OpType = 193
OpStructHeadOmitEmptyInterfacePtr OpType = 194
OpStructPtrHeadInterfacePtr OpType = 195
OpStructPtrHeadOmitEmptyInterfacePtr OpType = 196
OpStructHeadIntPtrString OpType = 197
OpStructHeadOmitEmptyIntPtrString OpType = 198
OpStructPtrHeadIntPtrString OpType = 199
OpStructPtrHeadOmitEmptyIntPtrString OpType = 200
OpStructHeadUintPtrString OpType = 201
OpStructHeadOmitEmptyUintPtrString OpType = 202
OpStructPtrHeadUintPtrString OpType = 203
OpStructPtrHeadOmitEmptyUintPtrString OpType = 204
OpStructHeadFloat32PtrString OpType = 205
OpStructHeadOmitEmptyFloat32PtrString OpType = 206
OpStructPtrHeadFloat32PtrString OpType = 207
OpStructPtrHeadOmitEmptyFloat32PtrString OpType = 208
OpStructHeadFloat64PtrString OpType = 209
OpStructHeadOmitEmptyFloat64PtrString OpType = 210
OpStructPtrHeadFloat64PtrString OpType = 211
OpStructPtrHeadOmitEmptyFloat64PtrString OpType = 212
OpStructHeadBoolPtrString OpType = 213
OpStructHeadOmitEmptyBoolPtrString OpType = 214
OpStructPtrHeadBoolPtrString OpType = 215
OpStructPtrHeadOmitEmptyBoolPtrString OpType = 216
OpStructHeadStringPtrString OpType = 217
OpStructHeadOmitEmptyStringPtrString OpType = 218
OpStructPtrHeadStringPtrString OpType = 219
OpStructPtrHeadOmitEmptyStringPtrString OpType = 220
OpStructHeadNumberPtrString OpType = 221
OpStructHeadOmitEmptyNumberPtrString OpType = 222
OpStructPtrHeadNumberPtrString OpType = 223
OpStructPtrHeadOmitEmptyNumberPtrString OpType = 224
OpStructHead OpType = 225
OpStructHeadOmitEmpty OpType = 226
OpStructPtrHead OpType = 227
OpStructPtrHeadOmitEmpty OpType = 228
OpStructFieldInt OpType = 229
OpStructFieldOmitEmptyInt OpType = 230
OpStructEndInt OpType = 231
OpStructEndOmitEmptyInt OpType = 232
OpStructFieldUint OpType = 233
OpStructFieldOmitEmptyUint OpType = 234
OpStructEndUint OpType = 235
OpStructEndOmitEmptyUint OpType = 236
OpStructFieldFloat32 OpType = 237
OpStructFieldOmitEmptyFloat32 OpType = 238
OpStructEndFloat32 OpType = 239
OpStructEndOmitEmptyFloat32 OpType = 240
OpStructFieldFloat64 OpType = 241
OpStructFieldOmitEmptyFloat64 OpType = 242
OpStructEndFloat64 OpType = 243
OpStructEndOmitEmptyFloat64 OpType = 244
OpStructFieldBool OpType = 245
OpStructFieldOmitEmptyBool OpType = 246
OpStructEndBool OpType = 247
OpStructEndOmitEmptyBool OpType = 248
OpStructFieldString OpType = 249
OpStructFieldOmitEmptyString OpType = 250
OpStructEndString OpType = 251
OpStructEndOmitEmptyString OpType = 252
OpStructFieldBytes OpType = 253
OpStructFieldOmitEmptyBytes OpType = 254
OpStructEndBytes OpType = 255
OpStructEndOmitEmptyBytes OpType = 256
OpStructFieldNumber OpType = 257
OpStructFieldOmitEmptyNumber OpType = 258
OpStructEndNumber OpType = 259
OpStructEndOmitEmptyNumber OpType = 260
OpStructFieldArray OpType = 261
OpStructFieldOmitEmptyArray OpType = 262
OpStructEndArray OpType = 263
OpStructEndOmitEmptyArray OpType = 264
OpStructFieldMap OpType = 265
OpStructFieldOmitEmptyMap OpType = 266
OpStructEndMap OpType = 267
OpStructEndOmitEmptyMap OpType = 268
OpStructFieldSlice OpType = 269
OpStructFieldOmitEmptySlice OpType = 270
OpStructEndSlice OpType = 271
OpStructEndOmitEmptySlice OpType = 272
OpStructFieldStruct OpType = 273
OpStructFieldOmitEmptyStruct OpType = 274
OpStructEndStruct OpType = 275
OpStructEndOmitEmptyStruct OpType = 276
OpStructFieldMarshalJSON OpType = 277
OpStructFieldOmitEmptyMarshalJSON OpType = 278
OpStructEndMarshalJSON OpType = 279
OpStructEndOmitEmptyMarshalJSON OpType = 280
OpStructFieldMarshalText OpType = 281
OpStructFieldOmitEmptyMarshalText OpType = 282
OpStructEndMarshalText OpType = 283
OpStructEndOmitEmptyMarshalText OpType = 284
OpStructFieldIntString OpType = 285
OpStructFieldOmitEmptyIntString OpType = 286
OpStructEndIntString OpType = 287
OpStructEndOmitEmptyIntString OpType = 288
OpStructFieldUintString OpType = 289
OpStructFieldOmitEmptyUintString OpType = 290
OpStructEndUintString OpType = 291
OpStructEndOmitEmptyUintString OpType = 292
OpStructFieldFloat32String OpType = 293
OpStructFieldOmitEmptyFloat32String OpType = 294
OpStructEndFloat32String OpType = 295
OpStructEndOmitEmptyFloat32String OpType = 296
OpStructFieldFloat64String OpType = 297
OpStructFieldOmitEmptyFloat64String OpType = 298
OpStructEndFloat64String OpType = 299
OpStructEndOmitEmptyFloat64String OpType = 300
OpStructFieldBoolString OpType = 301
OpStructFieldOmitEmptyBoolString OpType = 302
OpStructEndBoolString OpType = 303
OpStructEndOmitEmptyBoolString OpType = 304
OpStructFieldStringString OpType = 305
OpStructFieldOmitEmptyStringString OpType = 306
OpStructEndStringString OpType = 307
OpStructEndOmitEmptyStringString OpType = 308
OpStructFieldNumberString OpType = 309
OpStructFieldOmitEmptyNumberString OpType = 310
OpStructEndNumberString OpType = 311
OpStructEndOmitEmptyNumberString OpType = 312
OpStructFieldIntPtr OpType = 313
OpStructFieldOmitEmptyIntPtr OpType = 314
OpStructEndIntPtr OpType = 315
OpStructEndOmitEmptyIntPtr OpType = 316
OpStructFieldUintPtr OpType = 317
OpStructFieldOmitEmptyUintPtr OpType = 318
OpStructEndUintPtr OpType = 319
OpStructEndOmitEmptyUintPtr OpType = 320
OpStructFieldFloat32Ptr OpType = 321
OpStructFieldOmitEmptyFloat32Ptr OpType = 322
OpStructEndFloat32Ptr OpType = 323
OpStructEndOmitEmptyFloat32Ptr OpType = 324
OpStructFieldFloat64Ptr OpType = 325
OpStructFieldOmitEmptyFloat64Ptr OpType = 326
OpStructEndFloat64Ptr OpType = 327
OpStructEndOmitEmptyFloat64Ptr OpType = 328
OpStructFieldBoolPtr OpType = 329
OpStructFieldOmitEmptyBoolPtr OpType = 330
OpStructEndBoolPtr OpType = 331
OpStructEndOmitEmptyBoolPtr OpType = 332
OpStructFieldStringPtr OpType = 333
OpStructFieldOmitEmptyStringPtr OpType = 334
OpStructEndStringPtr OpType = 335
OpStructEndOmitEmptyStringPtr OpType = 336
OpStructFieldBytesPtr OpType = 337
OpStructFieldOmitEmptyBytesPtr OpType = 338
OpStructEndBytesPtr OpType = 339
OpStructEndOmitEmptyBytesPtr OpType = 340
OpStructFieldNumberPtr OpType = 341
OpStructFieldOmitEmptyNumberPtr OpType = 342
OpStructEndNumberPtr OpType = 343
OpStructEndOmitEmptyNumberPtr OpType = 344
OpStructFieldArrayPtr OpType = 345
OpStructFieldOmitEmptyArrayPtr OpType = 346
OpStructEndArrayPtr OpType = 347
OpStructEndOmitEmptyArrayPtr OpType = 348
OpStructFieldMapPtr OpType = 349
OpStructFieldOmitEmptyMapPtr OpType = 350
OpStructEndMapPtr OpType = 351
OpStructEndOmitEmptyMapPtr OpType = 352
OpStructFieldSlicePtr OpType = 353
OpStructFieldOmitEmptySlicePtr OpType = 354
OpStructEndSlicePtr OpType = 355
OpStructEndOmitEmptySlicePtr OpType = 356
OpStructFieldMarshalJSONPtr OpType = 357
OpStructFieldOmitEmptyMarshalJSONPtr OpType = 358
OpStructEndMarshalJSONPtr OpType = 359
OpStructEndOmitEmptyMarshalJSONPtr OpType = 360
OpStructFieldMarshalTextPtr OpType = 361
OpStructFieldOmitEmptyMarshalTextPtr OpType = 362
OpStructEndMarshalTextPtr OpType = 363
OpStructEndOmitEmptyMarshalTextPtr OpType = 364
OpStructFieldInterfacePtr OpType = 365
OpStructFieldOmitEmptyInterfacePtr OpType = 366
OpStructEndInterfacePtr OpType = 367
OpStructEndOmitEmptyInterfacePtr OpType = 368
OpStructFieldIntPtrString OpType = 369
OpStructFieldOmitEmptyIntPtrString OpType = 370
OpStructEndIntPtrString OpType = 371
OpStructEndOmitEmptyIntPtrString OpType = 372
OpStructFieldUintPtrString OpType = 373
OpStructFieldOmitEmptyUintPtrString OpType = 374
OpStructEndUintPtrString OpType = 375
OpStructEndOmitEmptyUintPtrString OpType = 376
OpStructFieldFloat32PtrString OpType = 377
OpStructFieldOmitEmptyFloat32PtrString OpType = 378
OpStructEndFloat32PtrString OpType = 379
OpStructEndOmitEmptyFloat32PtrString OpType = 380
OpStructFieldFloat64PtrString OpType = 381
OpStructFieldOmitEmptyFloat64PtrString OpType = 382
OpStructEndFloat64PtrString OpType = 383
OpStructEndOmitEmptyFloat64PtrString OpType = 384
OpStructFieldBoolPtrString OpType = 385
OpStructFieldOmitEmptyBoolPtrString OpType = 386
OpStructEndBoolPtrString OpType = 387
OpStructEndOmitEmptyBoolPtrString OpType = 388
OpStructFieldStringPtrString OpType = 389
OpStructFieldOmitEmptyStringPtrString OpType = 390
OpStructEndStringPtrString OpType = 391
OpStructEndOmitEmptyStringPtrString OpType = 392
OpStructFieldNumberPtrString OpType = 393
OpStructFieldOmitEmptyNumberPtrString OpType = 394
OpStructEndNumberPtrString OpType = 395
OpStructEndOmitEmptyNumberPtrString OpType = 396
OpStructField OpType = 397
OpStructFieldOmitEmpty OpType = 398
OpStructEnd OpType = 399
OpStructEndOmitEmpty OpType = 400
)
func (t OpType) String() string {
if int(t) >= 401 {
return ""
}
return opTypeStrings[int(t)]
}
func (t OpType) CodeType() CodeType {
if strings.Contains(t.String(), "Struct") {
if strings.Contains(t.String(), "End") {
return CodeStructEnd
}
return CodeStructField
}
switch t {
case OpArray, OpArrayPtr:
return CodeArrayHead
case OpArrayElem:
return CodeArrayElem
case OpSlice, OpSlicePtr:
return CodeSliceHead
case OpSliceElem:
return CodeSliceElem
case OpMap, OpMapPtr:
return CodeMapHead
case OpMapKey:
return CodeMapKey
case OpMapValue:
return CodeMapValue
case OpMapEnd:
return CodeMapEnd
}
return CodeOp
}
func (t OpType) HeadToPtrHead() OpType {
if strings.Index(t.String(), "PtrHead") > 0 {
return t
}
idx := strings.Index(t.String(), "Head")
if idx == -1 {
return t
}
suffix := "PtrHead" + t.String()[idx+len("Head"):]
const toPtrOffset = 2
if strings.Contains(OpType(int(t)+toPtrOffset).String(), suffix) {
return OpType(int(t) + toPtrOffset)
}
return t
}
func (t OpType) HeadToOmitEmptyHead() OpType {
const toOmitEmptyOffset = 1
if strings.Contains(OpType(int(t)+toOmitEmptyOffset).String(), "OmitEmpty") {
return OpType(int(t) + toOmitEmptyOffset)
}
return t
}
func (t OpType) PtrHeadToHead() OpType {
idx := strings.Index(t.String(), "Ptr")
if idx == -1 {
return t
}
suffix := t.String()[idx+len("Ptr"):]
const toPtrOffset = 2
if strings.Contains(OpType(int(t)-toPtrOffset).String(), suffix) {
return OpType(int(t) - toPtrOffset)
}
return t
}
func (t OpType) FieldToEnd() OpType {
idx := strings.Index(t.String(), "Field")
if idx == -1 {
return t
}
suffix := t.String()[idx+len("Field"):]
if suffix == "" || suffix == "OmitEmpty" {
return t
}
const toEndOffset = 2
if strings.Contains(OpType(int(t)+toEndOffset).String(), "End"+suffix) {
return OpType(int(t) + toEndOffset)
}
return t
}
func (t OpType) FieldToOmitEmptyField() OpType {
const toOmitEmptyOffset = 1
if strings.Contains(OpType(int(t)+toOmitEmptyOffset).String(), "OmitEmpty") {
return OpType(int(t) + toOmitEmptyOffset)
}
return t
}

View file

@ -0,0 +1,640 @@
package encoder
import (
"math/bits"
"reflect"
"unicode/utf8"
"unsafe"
)
const (
lsb = 0x0101010101010101
msb = 0x8080808080808080
)
var needEscapeWithHTML = [256]bool{
'"': true,
'&': true,
'<': true,
'>': true,
'\\': true,
0x00: true,
0x01: true,
0x02: true,
0x03: true,
0x04: true,
0x05: true,
0x06: true,
0x07: true,
0x08: true,
0x09: true,
0x0a: true,
0x0b: true,
0x0c: true,
0x0d: true,
0x0e: true,
0x0f: true,
0x10: true,
0x11: true,
0x12: true,
0x13: true,
0x14: true,
0x15: true,
0x16: true,
0x17: true,
0x18: true,
0x19: true,
0x1a: true,
0x1b: true,
0x1c: true,
0x1d: true,
0x1e: true,
0x1f: true,
/* 0x20 - 0x7f */
0x80: true,
0x81: true,
0x82: true,
0x83: true,
0x84: true,
0x85: true,
0x86: true,
0x87: true,
0x88: true,
0x89: true,
0x8a: true,
0x8b: true,
0x8c: true,
0x8d: true,
0x8e: true,
0x8f: true,
0x90: true,
0x91: true,
0x92: true,
0x93: true,
0x94: true,
0x95: true,
0x96: true,
0x97: true,
0x98: true,
0x99: true,
0x9a: true,
0x9b: true,
0x9c: true,
0x9d: true,
0x9e: true,
0x9f: true,
0xa0: true,
0xa1: true,
0xa2: true,
0xa3: true,
0xa4: true,
0xa5: true,
0xa6: true,
0xa7: true,
0xa8: true,
0xa9: true,
0xaa: true,
0xab: true,
0xac: true,
0xad: true,
0xae: true,
0xaf: true,
0xb0: true,
0xb1: true,
0xb2: true,
0xb3: true,
0xb4: true,
0xb5: true,
0xb6: true,
0xb7: true,
0xb8: true,
0xb9: true,
0xba: true,
0xbb: true,
0xbc: true,
0xbd: true,
0xbe: true,
0xbf: true,
0xc0: true,
0xc1: true,
0xc2: true,
0xc3: true,
0xc4: true,
0xc5: true,
0xc6: true,
0xc7: true,
0xc8: true,
0xc9: true,
0xca: true,
0xcb: true,
0xcc: true,
0xcd: true,
0xce: true,
0xcf: true,
0xd0: true,
0xd1: true,
0xd2: true,
0xd3: true,
0xd4: true,
0xd5: true,
0xd6: true,
0xd7: true,
0xd8: true,
0xd9: true,
0xda: true,
0xdb: true,
0xdc: true,
0xdd: true,
0xde: true,
0xdf: true,
0xe0: true,
0xe1: true,
0xe2: true,
0xe3: true,
0xe4: true,
0xe5: true,
0xe6: true,
0xe7: true,
0xe8: true,
0xe9: true,
0xea: true,
0xeb: true,
0xec: true,
0xed: true,
0xee: true,
0xef: true,
0xf0: true,
0xf1: true,
0xf2: true,
0xf3: true,
0xf4: true,
0xf5: true,
0xf6: true,
0xf7: true,
0xf8: true,
0xf9: true,
0xfa: true,
0xfb: true,
0xfc: true,
0xfd: true,
0xfe: true,
0xff: true,
}
var needEscape = [256]bool{
'"': true,
'\\': true,
0x00: true,
0x01: true,
0x02: true,
0x03: true,
0x04: true,
0x05: true,
0x06: true,
0x07: true,
0x08: true,
0x09: true,
0x0a: true,
0x0b: true,
0x0c: true,
0x0d: true,
0x0e: true,
0x0f: true,
0x10: true,
0x11: true,
0x12: true,
0x13: true,
0x14: true,
0x15: true,
0x16: true,
0x17: true,
0x18: true,
0x19: true,
0x1a: true,
0x1b: true,
0x1c: true,
0x1d: true,
0x1e: true,
0x1f: true,
/* 0x20 - 0x7f */
0x80: true,
0x81: true,
0x82: true,
0x83: true,
0x84: true,
0x85: true,
0x86: true,
0x87: true,
0x88: true,
0x89: true,
0x8a: true,
0x8b: true,
0x8c: true,
0x8d: true,
0x8e: true,
0x8f: true,
0x90: true,
0x91: true,
0x92: true,
0x93: true,
0x94: true,
0x95: true,
0x96: true,
0x97: true,
0x98: true,
0x99: true,
0x9a: true,
0x9b: true,
0x9c: true,
0x9d: true,
0x9e: true,
0x9f: true,
0xa0: true,
0xa1: true,
0xa2: true,
0xa3: true,
0xa4: true,
0xa5: true,
0xa6: true,
0xa7: true,
0xa8: true,
0xa9: true,
0xaa: true,
0xab: true,
0xac: true,
0xad: true,
0xae: true,
0xaf: true,
0xb0: true,
0xb1: true,
0xb2: true,
0xb3: true,
0xb4: true,
0xb5: true,
0xb6: true,
0xb7: true,
0xb8: true,
0xb9: true,
0xba: true,
0xbb: true,
0xbc: true,
0xbd: true,
0xbe: true,
0xbf: true,
0xc0: true,
0xc1: true,
0xc2: true,
0xc3: true,
0xc4: true,
0xc5: true,
0xc6: true,
0xc7: true,
0xc8: true,
0xc9: true,
0xca: true,
0xcb: true,
0xcc: true,
0xcd: true,
0xce: true,
0xcf: true,
0xd0: true,
0xd1: true,
0xd2: true,
0xd3: true,
0xd4: true,
0xd5: true,
0xd6: true,
0xd7: true,
0xd8: true,
0xd9: true,
0xda: true,
0xdb: true,
0xdc: true,
0xdd: true,
0xde: true,
0xdf: true,
0xe0: true,
0xe1: true,
0xe2: true,
0xe3: true,
0xe4: true,
0xe5: true,
0xe6: true,
0xe7: true,
0xe8: true,
0xe9: true,
0xea: true,
0xeb: true,
0xec: true,
0xed: true,
0xee: true,
0xef: true,
0xf0: true,
0xf1: true,
0xf2: true,
0xf3: true,
0xf4: true,
0xf5: true,
0xf6: true,
0xf7: true,
0xf8: true,
0xf9: true,
0xfa: true,
0xfb: true,
0xfc: true,
0xfd: true,
0xfe: true,
0xff: true,
}
var hex = "0123456789abcdef"
// escapeIndex finds the index of the first char in `s` that requires escaping.
// A char requires escaping if it's outside of the range of [0x20, 0x7F] or if
// it includes a double quote or backslash.
// If no chars in `s` require escaping, the return value is -1.
func escapeIndex(s string) int {
chunks := stringToUint64Slice(s)
for _, n := range chunks {
// combine masks before checking for the MSB of each byte. We include
// `n` in the mask to check whether any of the *input* byte MSBs were
// set (i.e. the byte was outside the ASCII range).
mask := n | below(n, 0x20) | contains(n, '"') | contains(n, '\\')
if (mask & msb) != 0 {
return bits.TrailingZeros64(mask&msb) / 8
}
}
valLen := len(s)
for i := len(chunks) * 8; i < valLen; i++ {
if needEscape[s[i]] {
return i
}
}
return -1
}
// below return a mask that can be used to determine if any of the bytes
// in `n` are below `b`. If a byte's MSB is set in the mask then that byte was
// below `b`. The result is only valid if `b`, and each byte in `n`, is below
// 0x80.
func below(n uint64, b byte) uint64 {
return n - expand(b)
}
// contains returns a mask that can be used to determine if any of the
// bytes in `n` are equal to `b`. If a byte's MSB is set in the mask then
// that byte is equal to `b`. The result is only valid if `b`, and each
// byte in `n`, is below 0x80.
func contains(n uint64, b byte) uint64 {
return (n ^ expand(b)) - lsb
}
// expand puts the specified byte into each of the 8 bytes of a uint64.
func expand(b byte) uint64 {
return lsb * uint64(b)
}
//nolint:govet
func stringToUint64Slice(s string) []uint64 {
return *(*[]uint64)(unsafe.Pointer(&reflect.SliceHeader{
Data: ((*reflect.StringHeader)(unsafe.Pointer(&s))).Data,
Len: len(s) / 8,
Cap: len(s) / 8,
}))
}
func AppendString(ctx *RuntimeContext, buf []byte, s string) []byte {
if ctx.Option.Flag&HTMLEscapeOption == 0 {
return appendString(buf, s)
}
valLen := len(s)
if valLen == 0 {
return append(buf, `""`...)
}
buf = append(buf, '"')
var (
i, j int
)
if valLen >= 8 {
chunks := stringToUint64Slice(s)
for _, n := range chunks {
// combine masks before checking for the MSB of each byte. We include
// `n` in the mask to check whether any of the *input* byte MSBs were
// set (i.e. the byte was outside the ASCII range).
mask := n | (n - (lsb * 0x20)) |
((n ^ (lsb * '"')) - lsb) |
((n ^ (lsb * '\\')) - lsb) |
((n ^ (lsb * '<')) - lsb) |
((n ^ (lsb * '>')) - lsb) |
((n ^ (lsb * '&')) - lsb)
if (mask & msb) != 0 {
j = bits.TrailingZeros64(mask&msb) / 8
goto ESCAPE_END
}
}
for i := len(chunks) * 8; i < valLen; i++ {
if needEscapeWithHTML[s[i]] {
j = i
goto ESCAPE_END
}
}
// no found any escape characters.
return append(append(buf, s...), '"')
}
ESCAPE_END:
for j < valLen {
c := s[j]
if !needEscapeWithHTML[c] {
// fast path: most of the time, printable ascii characters are used
j++
continue
}
switch c {
case '\\', '"':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', c)
i = j + 1
j = j + 1
continue
case '\n':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 'n')
i = j + 1
j = j + 1
continue
case '\r':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 'r')
i = j + 1
j = j + 1
continue
case '\t':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 't')
i = j + 1
j = j + 1
continue
case '<', '>', '&':
buf = append(buf, s[i:j]...)
buf = append(buf, `\u00`...)
buf = append(buf, hex[c>>4], hex[c&0xF])
i = j + 1
j = j + 1
continue
}
// This encodes bytes < 0x20 except for \t, \n and \r.
if c < 0x20 {
buf = append(buf, s[i:j]...)
buf = append(buf, `\u00`...)
buf = append(buf, hex[c>>4], hex[c&0xF])
i = j + 1
j = j + 1
continue
}
r, size := utf8.DecodeRuneInString(s[j:])
if r == utf8.RuneError && size == 1 {
buf = append(buf, s[i:j]...)
buf = append(buf, `\ufffd`...)
i = j + size
j = j + size
continue
}
switch r {
case '\u2028', '\u2029':
// U+2028 is LINE SEPARATOR.
// U+2029 is PARAGRAPH SEPARATOR.
// They are both technically valid characters in JSON strings,
// but don't work in JSONP, which has to be evaluated as JavaScript,
// and can lead to security holes there. It is valid JSON to
// escape them, so we do so unconditionally.
// See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
buf = append(buf, s[i:j]...)
buf = append(buf, `\u202`...)
buf = append(buf, hex[r&0xF])
i = j + size
j = j + size
continue
}
j += size
}
return append(append(buf, s[i:]...), '"')
}
func appendString(buf []byte, s string) []byte {
valLen := len(s)
if valLen == 0 {
return append(buf, `""`...)
}
buf = append(buf, '"')
var escapeIdx int
if valLen >= 8 {
if escapeIdx = escapeIndex(s); escapeIdx < 0 {
return append(append(buf, s...), '"')
}
}
i := 0
j := escapeIdx
for j < valLen {
c := s[j]
if c >= 0x20 && c <= 0x7f && c != '\\' && c != '"' {
// fast path: most of the time, printable ascii characters are used
j++
continue
}
switch c {
case '\\', '"':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', c)
i = j + 1
j = j + 1
continue
case '\n':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 'n')
i = j + 1
j = j + 1
continue
case '\r':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 'r')
i = j + 1
j = j + 1
continue
case '\t':
buf = append(buf, s[i:j]...)
buf = append(buf, '\\', 't')
i = j + 1
j = j + 1
continue
case '<', '>', '&':
buf = append(buf, s[i:j]...)
buf = append(buf, `\u00`...)
buf = append(buf, hex[c>>4], hex[c&0xF])
i = j + 1
j = j + 1
continue
}
// This encodes bytes < 0x20 except for \t, \n and \r.
if c < 0x20 {
buf = append(buf, s[i:j]...)
buf = append(buf, `\u00`...)
buf = append(buf, hex[c>>4], hex[c&0xF])
i = j + 1
j = j + 1
continue
}
r, size := utf8.DecodeRuneInString(s[j:])
if r == utf8.RuneError && size == 1 {
buf = append(buf, s[i:j]...)
buf = append(buf, `\ufffd`...)
i = j + size
j = j + size
continue
}
switch r {
case '\u2028', '\u2029':
// U+2028 is LINE SEPARATOR.
// U+2029 is PARAGRAPH SEPARATOR.
// They are both technically valid characters in JSON strings,
// but don't work in JSONP, which has to be evaluated as JavaScript,
// and can lead to security holes there. It is valid JSON to
// escape them, so we do so unconditionally.
// See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
buf = append(buf, s[i:j]...)
buf = append(buf, `\u202`...)
buf = append(buf, hex[r&0xF])
i = j + size
j = j + size
continue
}
j += size
}
return append(append(buf, s[i:]...), '"')
}

View file

@ -0,0 +1,34 @@
package vm
import (
"fmt"
"github.com/goccy/go-json/internal/encoder"
)
func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
defer func() {
var code *encoder.Opcode
if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
code = codeSet.EscapeKeyCode
} else {
code = codeSet.NoescapeKeyCode
}
if err := recover(); err != nil {
fmt.Println("=============[DEBUG]===============")
fmt.Println("* [TYPE]")
fmt.Println(codeSet.Type)
fmt.Printf("\n")
fmt.Println("* [ALL OPCODE]")
fmt.Println(code.Dump())
fmt.Printf("\n")
fmt.Println("* [CONTEXT]")
fmt.Printf("%+v\n", ctx)
fmt.Println("===================================")
panic(err)
}
}()
return Run(ctx, b, codeSet)
}

View file

@ -0,0 +1,9 @@
package vm
import (
// HACK: compile order
// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
// so forcibly make dependencies and avoid compiling in concurrent.
// dependency order: vm => vm_indent => vm_color => vm_color_indent
_ "github.com/goccy/go-json/internal/encoder/vm_indent"
)

View file

@ -0,0 +1,182 @@
package vm
import (
"encoding/json"
"fmt"
"unsafe"
"github.com/goccy/go-json/internal/encoder"
"github.com/goccy/go-json/internal/runtime"
)
const uintptrSize = 4 << (^uintptr(0) >> 63)
var (
appendInt = encoder.AppendInt
appendUint = encoder.AppendUint
appendFloat32 = encoder.AppendFloat32
appendFloat64 = encoder.AppendFloat64
appendString = encoder.AppendString
appendByteSlice = encoder.AppendByteSlice
appendNumber = encoder.AppendNumber
errUnsupportedValue = encoder.ErrUnsupportedValue
errUnsupportedFloat = encoder.ErrUnsupportedFloat
mapiterinit = encoder.MapIterInit
mapiterkey = encoder.MapIterKey
mapitervalue = encoder.MapIterValue
mapiternext = encoder.MapIterNext
maplen = encoder.MapLen
)
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func errUnimplementedOp(op encoder.OpType) error {
return fmt.Errorf("encoder: opcode %s has not been implemented", op)
}
func load(base uintptr, idx uint32) uintptr {
addr := base + uintptr(idx)
return **(**uintptr)(unsafe.Pointer(&addr))
}
func store(base uintptr, idx uint32, p uintptr) {
addr := base + uintptr(idx)
**(**uintptr)(unsafe.Pointer(&addr)) = p
}
func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
addr := base + uintptr(idx)
p := **(**uintptr)(unsafe.Pointer(&addr))
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUint64(p uintptr) uint64 { return **(**uint64)(unsafe.Pointer(&p)) }
func ptrToFloat32(p uintptr) float32 { return **(**float32)(unsafe.Pointer(&p)) }
func ptrToFloat64(p uintptr) float64 { return **(**float64)(unsafe.Pointer(&p)) }
func ptrToBool(p uintptr) bool { return **(**bool)(unsafe.Pointer(&p)) }
func ptrToBytes(p uintptr) []byte { return **(**[]byte)(unsafe.Pointer(&p)) }
func ptrToNumber(p uintptr) json.Number { return **(**json.Number)(unsafe.Pointer(&p)) }
func ptrToString(p uintptr) string { return **(**string)(unsafe.Pointer(&p)) }
func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
func ptrToPtr(p uintptr) uintptr {
return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
}
func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&p))
}
func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
return *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
}
func appendBool(_ *encoder.RuntimeContext, b []byte, v bool) []byte {
if v {
return append(b, "true"...)
}
return append(b, "false"...)
}
func appendNull(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, "null"...)
}
func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ',')
}
func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
last := len(b) - 1
b[last] = ':'
return b
}
func appendMapKeyValue(_ *encoder.RuntimeContext, _ *encoder.Opcode, b, key, value []byte) []byte {
b = append(b, key...)
b[len(b)-1] = ':'
return append(b, value...)
}
func appendMapEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
b[len(b)-1] = '}'
b = append(b, ',')
return b
}
func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalJSON(ctx, code, b, v)
}
func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalText(ctx, code, b, v)
}
func appendArrayHead(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
return append(b, '[')
}
func appendArrayEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = ']'
return append(b, ',')
}
func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '[', ']', ',')
}
func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '}', ',')
}
func appendObjectEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = '}'
return append(b, ',')
}
func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{')
}
func appendStructKey(_ *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
return append(b, code.Key...)
}
func appendStructEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
return append(b, '}', ',')
}
func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
if b[last] == ',' {
b[last] = '}'
return appendComma(ctx, b)
}
return appendStructEnd(ctx, code, b)
}
func restoreIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, _ uintptr) {}
func storeIndent(_ uintptr, _ *encoder.Opcode, _ uintptr) {}
func appendMapKeyIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte { return b }
func appendArrayElemIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte { return b }

5041
vendor/github.com/goccy/go-json/internal/encoder/vm/vm.go generated vendored Normal file

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@ -0,0 +1,34 @@
package vm_color
import (
"fmt"
"github.com/goccy/go-json/internal/encoder"
)
func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
var code *encoder.Opcode
if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
code = codeSet.EscapeKeyCode
} else {
code = codeSet.NoescapeKeyCode
}
defer func() {
if err := recover(); err != nil {
fmt.Println("=============[DEBUG]===============")
fmt.Println("* [TYPE]")
fmt.Println(codeSet.Type)
fmt.Printf("\n")
fmt.Println("* [ALL OPCODE]")
fmt.Println(code.Dump())
fmt.Printf("\n")
fmt.Println("* [CONTEXT]")
fmt.Printf("%+v\n", ctx)
fmt.Println("===================================")
panic(err)
}
}()
return Run(ctx, b, codeSet)
}

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@ -0,0 +1,9 @@
package vm_color
import (
// HACK: compile order
// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
// so forcibly make dependencies and avoid compiling in concurrent.
// dependency order: vm => vm_indent => vm_color => vm_color_indent
_ "github.com/goccy/go-json/internal/encoder/vm_color_indent"
)

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@ -0,0 +1,246 @@
package vm_color
import (
"encoding/json"
"fmt"
"unsafe"
"github.com/goccy/go-json/internal/encoder"
"github.com/goccy/go-json/internal/runtime"
)
const uintptrSize = 4 << (^uintptr(0) >> 63)
var (
errUnsupportedValue = encoder.ErrUnsupportedValue
errUnsupportedFloat = encoder.ErrUnsupportedFloat
mapiterinit = encoder.MapIterInit
mapiterkey = encoder.MapIterKey
mapitervalue = encoder.MapIterValue
mapiternext = encoder.MapIterNext
maplen = encoder.MapLen
)
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func errUnimplementedOp(op encoder.OpType) error {
return fmt.Errorf("encoder: opcode %s has not been implemented", op)
}
func load(base uintptr, idx uint32) uintptr {
addr := base + uintptr(idx)
return **(**uintptr)(unsafe.Pointer(&addr))
}
func store(base uintptr, idx uint32, p uintptr) {
addr := base + uintptr(idx)
**(**uintptr)(unsafe.Pointer(&addr)) = p
}
func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
addr := base + uintptr(idx)
p := **(**uintptr)(unsafe.Pointer(&addr))
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUint64(p uintptr) uint64 { return **(**uint64)(unsafe.Pointer(&p)) }
func ptrToFloat32(p uintptr) float32 { return **(**float32)(unsafe.Pointer(&p)) }
func ptrToFloat64(p uintptr) float64 { return **(**float64)(unsafe.Pointer(&p)) }
func ptrToBool(p uintptr) bool { return **(**bool)(unsafe.Pointer(&p)) }
func ptrToBytes(p uintptr) []byte { return **(**[]byte)(unsafe.Pointer(&p)) }
func ptrToNumber(p uintptr) json.Number { return **(**json.Number)(unsafe.Pointer(&p)) }
func ptrToString(p uintptr) string { return **(**string)(unsafe.Pointer(&p)) }
func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
func ptrToPtr(p uintptr) uintptr {
return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
}
func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&p))
}
func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
return *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
}
func appendInt(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
format := ctx.Option.ColorScheme.Int
b = append(b, format.Header...)
b = encoder.AppendInt(ctx, b, v, code)
return append(b, format.Footer...)
}
func appendUint(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
format := ctx.Option.ColorScheme.Uint
b = append(b, format.Header...)
b = encoder.AppendUint(ctx, b, v, code)
return append(b, format.Footer...)
}
func appendFloat32(ctx *encoder.RuntimeContext, b []byte, v float32) []byte {
format := ctx.Option.ColorScheme.Float
b = append(b, format.Header...)
b = encoder.AppendFloat32(ctx, b, v)
return append(b, format.Footer...)
}
func appendFloat64(ctx *encoder.RuntimeContext, b []byte, v float64) []byte {
format := ctx.Option.ColorScheme.Float
b = append(b, format.Header...)
b = encoder.AppendFloat64(ctx, b, v)
return append(b, format.Footer...)
}
func appendString(ctx *encoder.RuntimeContext, b []byte, v string) []byte {
format := ctx.Option.ColorScheme.String
b = append(b, format.Header...)
b = encoder.AppendString(ctx, b, v)
return append(b, format.Footer...)
}
func appendByteSlice(ctx *encoder.RuntimeContext, b []byte, src []byte) []byte {
format := ctx.Option.ColorScheme.Binary
b = append(b, format.Header...)
b = encoder.AppendByteSlice(ctx, b, src)
return append(b, format.Footer...)
}
func appendNumber(ctx *encoder.RuntimeContext, b []byte, n json.Number) ([]byte, error) {
format := ctx.Option.ColorScheme.Int
b = append(b, format.Header...)
bb, err := encoder.AppendNumber(ctx, b, n)
if err != nil {
return nil, err
}
return append(bb, format.Footer...), nil
}
func appendBool(ctx *encoder.RuntimeContext, b []byte, v bool) []byte {
format := ctx.Option.ColorScheme.Bool
b = append(b, format.Header...)
if v {
b = append(b, "true"...)
} else {
b = append(b, "false"...)
}
return append(b, format.Footer...)
}
func appendNull(ctx *encoder.RuntimeContext, b []byte) []byte {
format := ctx.Option.ColorScheme.Null
b = append(b, format.Header...)
b = append(b, "null"...)
return append(b, format.Footer...)
}
func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ',')
}
func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
last := len(b) - 1
b[last] = ':'
return b
}
func appendMapKeyValue(_ *encoder.RuntimeContext, _ *encoder.Opcode, b, key, value []byte) []byte {
b = append(b, key[:len(key)-1]...)
b = append(b, ':')
return append(b, value...)
}
func appendMapEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = '}'
b = append(b, ',')
return b
}
func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalJSON(ctx, code, b, v)
}
func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
format := ctx.Option.ColorScheme.String
b = append(b, format.Header...)
bb, err := encoder.AppendMarshalText(ctx, code, b, v)
if err != nil {
return nil, err
}
return append(bb, format.Footer...), nil
}
func appendArrayHead(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
return append(b, '[')
}
func appendArrayEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = ']'
return append(b, ',')
}
func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '[', ']', ',')
}
func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '}', ',')
}
func appendObjectEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = '}'
return append(b, ',')
}
func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{')
}
func appendStructKey(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
format := ctx.Option.ColorScheme.ObjectKey
b = append(b, format.Header...)
b = append(b, code.Key[:len(code.Key)-1]...)
b = append(b, format.Footer...)
return append(b, ':')
}
func appendStructEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte {
return append(b, '}', ',')
}
func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
if b[last] == ',' {
b[last] = '}'
return appendComma(ctx, b)
}
return appendStructEnd(ctx, code, b)
}
func restoreIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, _ uintptr) {}
func storeIndent(_ uintptr, _ *encoder.Opcode, _ uintptr) {}
func appendMapKeyIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte { return b }
func appendArrayElemIndent(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte { return b }

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@ -0,0 +1,34 @@
package vm_color_indent
import (
"fmt"
"github.com/goccy/go-json/internal/encoder"
)
func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
var code *encoder.Opcode
if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
code = codeSet.EscapeKeyCode
} else {
code = codeSet.NoescapeKeyCode
}
defer func() {
if err := recover(); err != nil {
fmt.Println("=============[DEBUG]===============")
fmt.Println("* [TYPE]")
fmt.Println(codeSet.Type)
fmt.Printf("\n")
fmt.Println("* [ALL OPCODE]")
fmt.Println(code.Dump())
fmt.Printf("\n")
fmt.Println("* [CONTEXT]")
fmt.Printf("%+v\n", ctx)
fmt.Println("===================================")
panic(err)
}
}()
return Run(ctx, b, codeSet)
}

View file

@ -0,0 +1,267 @@
package vm_color_indent
import (
"encoding/json"
"fmt"
"unsafe"
"github.com/goccy/go-json/internal/encoder"
"github.com/goccy/go-json/internal/runtime"
)
const uintptrSize = 4 << (^uintptr(0) >> 63)
var (
appendIndent = encoder.AppendIndent
appendStructEnd = encoder.AppendStructEndIndent
errUnsupportedValue = encoder.ErrUnsupportedValue
errUnsupportedFloat = encoder.ErrUnsupportedFloat
mapiterinit = encoder.MapIterInit
mapiterkey = encoder.MapIterKey
mapitervalue = encoder.MapIterValue
mapiternext = encoder.MapIterNext
maplen = encoder.MapLen
)
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func errUnimplementedOp(op encoder.OpType) error {
return fmt.Errorf("encoder (indent): opcode %s has not been implemented", op)
}
func load(base uintptr, idx uint32) uintptr {
addr := base + uintptr(idx)
return **(**uintptr)(unsafe.Pointer(&addr))
}
func store(base uintptr, idx uint32, p uintptr) {
addr := base + uintptr(idx)
**(**uintptr)(unsafe.Pointer(&addr)) = p
}
func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
addr := base + uintptr(idx)
p := **(**uintptr)(unsafe.Pointer(&addr))
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUint64(p uintptr) uint64 { return **(**uint64)(unsafe.Pointer(&p)) }
func ptrToFloat32(p uintptr) float32 { return **(**float32)(unsafe.Pointer(&p)) }
func ptrToFloat64(p uintptr) float64 { return **(**float64)(unsafe.Pointer(&p)) }
func ptrToBool(p uintptr) bool { return **(**bool)(unsafe.Pointer(&p)) }
func ptrToBytes(p uintptr) []byte { return **(**[]byte)(unsafe.Pointer(&p)) }
func ptrToNumber(p uintptr) json.Number { return **(**json.Number)(unsafe.Pointer(&p)) }
func ptrToString(p uintptr) string { return **(**string)(unsafe.Pointer(&p)) }
func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
func ptrToPtr(p uintptr) uintptr {
return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
}
func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&p))
}
func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
return *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
}
func appendInt(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
format := ctx.Option.ColorScheme.Int
b = append(b, format.Header...)
b = encoder.AppendInt(ctx, b, v, code)
return append(b, format.Footer...)
}
func appendUint(ctx *encoder.RuntimeContext, b []byte, v uint64, code *encoder.Opcode) []byte {
format := ctx.Option.ColorScheme.Uint
b = append(b, format.Header...)
b = encoder.AppendUint(ctx, b, v, code)
return append(b, format.Footer...)
}
func appendFloat32(ctx *encoder.RuntimeContext, b []byte, v float32) []byte {
format := ctx.Option.ColorScheme.Float
b = append(b, format.Header...)
b = encoder.AppendFloat32(ctx, b, v)
return append(b, format.Footer...)
}
func appendFloat64(ctx *encoder.RuntimeContext, b []byte, v float64) []byte {
format := ctx.Option.ColorScheme.Float
b = append(b, format.Header...)
b = encoder.AppendFloat64(ctx, b, v)
return append(b, format.Footer...)
}
func appendString(ctx *encoder.RuntimeContext, b []byte, v string) []byte {
format := ctx.Option.ColorScheme.String
b = append(b, format.Header...)
b = encoder.AppendString(ctx, b, v)
return append(b, format.Footer...)
}
func appendByteSlice(ctx *encoder.RuntimeContext, b []byte, src []byte) []byte {
format := ctx.Option.ColorScheme.Binary
b = append(b, format.Header...)
b = encoder.AppendByteSlice(ctx, b, src)
return append(b, format.Footer...)
}
func appendNumber(ctx *encoder.RuntimeContext, b []byte, n json.Number) ([]byte, error) {
format := ctx.Option.ColorScheme.Int
b = append(b, format.Header...)
bb, err := encoder.AppendNumber(ctx, b, n)
if err != nil {
return nil, err
}
return append(bb, format.Footer...), nil
}
func appendBool(ctx *encoder.RuntimeContext, b []byte, v bool) []byte {
format := ctx.Option.ColorScheme.Bool
b = append(b, format.Header...)
if v {
b = append(b, "true"...)
} else {
b = append(b, "false"...)
}
return append(b, format.Footer...)
}
func appendNull(ctx *encoder.RuntimeContext, b []byte) []byte {
format := ctx.Option.ColorScheme.Null
b = append(b, format.Header...)
b = append(b, "null"...)
return append(b, format.Footer...)
}
func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ',', '\n')
}
func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ':', ' ')
}
func appendMapKeyValue(ctx *encoder.RuntimeContext, code *encoder.Opcode, b, key, value []byte) []byte {
b = appendIndent(ctx, b, code.Indent+1)
b = append(b, key...)
b[len(b)-2] = ':'
b[len(b)-1] = ' '
return append(b, value...)
}
func appendMapEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = b[:len(b)-2]
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent)
return append(b, '}', ',', '\n')
}
func appendArrayHead(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = append(b, '[', '\n')
return appendIndent(ctx, b, code.Indent+1)
}
func appendArrayEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = b[:len(b)-2]
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent)
return append(b, ']', ',', '\n')
}
func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '[', ']', ',', '\n')
}
func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '}', ',', '\n')
}
func appendObjectEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = '\n'
b = appendIndent(ctx, b, code.Indent-1)
return append(b, '}', ',', '\n')
}
func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalJSONIndent(ctx, code, b, v)
}
func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
format := ctx.Option.ColorScheme.String
b = append(b, format.Header...)
bb, err := encoder.AppendMarshalTextIndent(ctx, code, b, v)
if err != nil {
return nil, err
}
return append(bb, format.Footer...), nil
}
func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '\n')
}
func appendStructKey(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = appendIndent(ctx, b, code.Indent)
format := ctx.Option.ColorScheme.ObjectKey
b = append(b, format.Header...)
b = append(b, code.Key[:len(code.Key)-1]...)
b = append(b, format.Footer...)
return append(b, ':', ' ')
}
func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
if b[last-1] == '{' {
b[last] = '}'
} else {
if b[last] == '\n' {
// to remove ',' and '\n' characters
b = b[:len(b)-2]
}
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent-1)
b = append(b, '}')
}
return appendComma(ctx, b)
}
func restoreIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, ctxptr uintptr) {
ctx.BaseIndent = uint32(load(ctxptr, code.Length))
}
func storeIndent(ctxptr uintptr, code *encoder.Opcode, indent uintptr) {
store(ctxptr, code.Length, indent)
}
func appendArrayElemIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
return appendIndent(ctx, b, code.Indent+1)
}
func appendMapKeyIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
return appendIndent(ctx, b, code.Indent)
}

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@ -0,0 +1,34 @@
package vm_indent
import (
"fmt"
"github.com/goccy/go-json/internal/encoder"
)
func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
var code *encoder.Opcode
if (ctx.Option.Flag & encoder.HTMLEscapeOption) != 0 {
code = codeSet.EscapeKeyCode
} else {
code = codeSet.NoescapeKeyCode
}
defer func() {
if err := recover(); err != nil {
fmt.Println("=============[DEBUG]===============")
fmt.Println("* [TYPE]")
fmt.Println(codeSet.Type)
fmt.Printf("\n")
fmt.Println("* [ALL OPCODE]")
fmt.Println(code.Dump())
fmt.Printf("\n")
fmt.Println("* [CONTEXT]")
fmt.Printf("%+v\n", ctx)
fmt.Println("===================================")
panic(err)
}
}()
return Run(ctx, b, codeSet)
}

View file

@ -0,0 +1,9 @@
package vm_indent
import (
// HACK: compile order
// `vm`, `vm_indent`, `vm_color`, `vm_color_indent` packages uses a lot of memory to compile,
// so forcibly make dependencies and avoid compiling in concurrent.
// dependency order: vm => vm_indent => vm_color => vm_color_indent
_ "github.com/goccy/go-json/internal/encoder/vm_color"
)

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@ -0,0 +1,204 @@
package vm_indent
import (
"encoding/json"
"fmt"
"unsafe"
"github.com/goccy/go-json/internal/encoder"
"github.com/goccy/go-json/internal/runtime"
)
const uintptrSize = 4 << (^uintptr(0) >> 63)
var (
appendInt = encoder.AppendInt
appendUint = encoder.AppendUint
appendFloat32 = encoder.AppendFloat32
appendFloat64 = encoder.AppendFloat64
appendString = encoder.AppendString
appendByteSlice = encoder.AppendByteSlice
appendNumber = encoder.AppendNumber
appendStructEnd = encoder.AppendStructEndIndent
appendIndent = encoder.AppendIndent
errUnsupportedValue = encoder.ErrUnsupportedValue
errUnsupportedFloat = encoder.ErrUnsupportedFloat
mapiterinit = encoder.MapIterInit
mapiterkey = encoder.MapIterKey
mapitervalue = encoder.MapIterValue
mapiternext = encoder.MapIterNext
maplen = encoder.MapLen
)
type emptyInterface struct {
typ *runtime.Type
ptr unsafe.Pointer
}
func errUnimplementedOp(op encoder.OpType) error {
return fmt.Errorf("encoder (indent): opcode %s has not been implemented", op)
}
func load(base uintptr, idx uint32) uintptr {
addr := base + uintptr(idx)
return **(**uintptr)(unsafe.Pointer(&addr))
}
func store(base uintptr, idx uint32, p uintptr) {
addr := base + uintptr(idx)
**(**uintptr)(unsafe.Pointer(&addr)) = p
}
func loadNPtr(base uintptr, idx uint32, ptrNum uint8) uintptr {
addr := base + uintptr(idx)
p := **(**uintptr)(unsafe.Pointer(&addr))
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUint64(p uintptr) uint64 { return **(**uint64)(unsafe.Pointer(&p)) }
func ptrToFloat32(p uintptr) float32 { return **(**float32)(unsafe.Pointer(&p)) }
func ptrToFloat64(p uintptr) float64 { return **(**float64)(unsafe.Pointer(&p)) }
func ptrToBool(p uintptr) bool { return **(**bool)(unsafe.Pointer(&p)) }
func ptrToBytes(p uintptr) []byte { return **(**[]byte)(unsafe.Pointer(&p)) }
func ptrToNumber(p uintptr) json.Number { return **(**json.Number)(unsafe.Pointer(&p)) }
func ptrToString(p uintptr) string { return **(**string)(unsafe.Pointer(&p)) }
func ptrToSlice(p uintptr) *runtime.SliceHeader { return *(**runtime.SliceHeader)(unsafe.Pointer(&p)) }
func ptrToPtr(p uintptr) uintptr {
return uintptr(**(**unsafe.Pointer)(unsafe.Pointer(&p)))
}
func ptrToNPtr(p uintptr, ptrNum uint8) uintptr {
for i := uint8(0); i < ptrNum; i++ {
if p == 0 {
return 0
}
p = ptrToPtr(p)
}
return p
}
func ptrToUnsafePtr(p uintptr) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&p))
}
func ptrToInterface(code *encoder.Opcode, p uintptr) interface{} {
return *(*interface{})(unsafe.Pointer(&emptyInterface{
typ: code.Type,
ptr: *(*unsafe.Pointer)(unsafe.Pointer(&p)),
}))
}
func appendBool(_ *encoder.RuntimeContext, b []byte, v bool) []byte {
if v {
return append(b, "true"...)
}
return append(b, "false"...)
}
func appendNull(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, "null"...)
}
func appendComma(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ',', '\n')
}
func appendColon(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, ':', ' ')
}
func appendMapKeyValue(ctx *encoder.RuntimeContext, code *encoder.Opcode, b, key, value []byte) []byte {
b = appendIndent(ctx, b, code.Indent+1)
b = append(b, key...)
b[len(b)-2] = ':'
b[len(b)-1] = ' '
return append(b, value...)
}
func appendMapEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = b[:len(b)-2]
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent)
return append(b, '}', ',', '\n')
}
func appendArrayHead(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = append(b, '[', '\n')
return appendIndent(ctx, b, code.Indent+1)
}
func appendArrayEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = b[:len(b)-2]
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent)
return append(b, ']', ',', '\n')
}
func appendEmptyArray(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '[', ']', ',', '\n')
}
func appendEmptyObject(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '}', ',', '\n')
}
func appendObjectEnd(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
b[last] = '\n'
b = appendIndent(ctx, b, code.Indent-1)
return append(b, '}', ',', '\n')
}
func appendMarshalJSON(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalJSONIndent(ctx, code, b, v)
}
func appendMarshalText(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte, v interface{}) ([]byte, error) {
return encoder.AppendMarshalTextIndent(ctx, code, b, v)
}
func appendStructHead(_ *encoder.RuntimeContext, b []byte) []byte {
return append(b, '{', '\n')
}
func appendStructKey(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
b = appendIndent(ctx, b, code.Indent)
b = append(b, code.Key...)
return append(b, ' ')
}
func appendStructEndSkipLast(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
last := len(b) - 1
if b[last-1] == '{' {
b[last] = '}'
} else {
if b[last] == '\n' {
// to remove ',' and '\n' characters
b = b[:len(b)-2]
}
b = append(b, '\n')
b = appendIndent(ctx, b, code.Indent-1)
b = append(b, '}')
}
return appendComma(ctx, b)
}
func restoreIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, ctxptr uintptr) {
ctx.BaseIndent = uint32(load(ctxptr, code.Length))
}
func storeIndent(ctxptr uintptr, code *encoder.Opcode, indent uintptr) {
store(ctxptr, code.Length, indent)
}
func appendArrayElemIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
return appendIndent(ctx, b, code.Indent+1)
}
func appendMapKeyIndent(ctx *encoder.RuntimeContext, code *encoder.Opcode, b []byte) []byte {
return appendIndent(ctx, b, code.Indent)
}

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@ -0,0 +1,157 @@
package errors
import (
"fmt"
"reflect"
"strconv"
)
type InvalidUTF8Error struct {
S string // the whole string value that caused the error
}
func (e *InvalidUTF8Error) Error() string {
return fmt.Sprintf("json: invalid UTF-8 in string: %s", strconv.Quote(e.S))
}
type InvalidUnmarshalError struct {
Type reflect.Type
}
func (e *InvalidUnmarshalError) Error() string {
if e.Type == nil {
return "json: Unmarshal(nil)"
}
if e.Type.Kind() != reflect.Ptr {
return fmt.Sprintf("json: Unmarshal(non-pointer %s)", e.Type)
}
return fmt.Sprintf("json: Unmarshal(nil %s)", e.Type)
}
// A MarshalerError represents an error from calling a MarshalJSON or MarshalText method.
type MarshalerError struct {
Type reflect.Type
Err error
sourceFunc string
}
func (e *MarshalerError) Error() string {
srcFunc := e.sourceFunc
if srcFunc == "" {
srcFunc = "MarshalJSON"
}
return fmt.Sprintf("json: error calling %s for type %s: %s", srcFunc, e.Type, e.Err.Error())
}
// Unwrap returns the underlying error.
func (e *MarshalerError) Unwrap() error { return e.Err }
// A SyntaxError is a description of a JSON syntax error.
type SyntaxError struct {
msg string // description of error
Offset int64 // error occurred after reading Offset bytes
}
func (e *SyntaxError) Error() string { return e.msg }
// An UnmarshalFieldError describes a JSON object key that
// led to an unexported (and therefore unwritable) struct field.
//
// Deprecated: No longer used; kept for compatibility.
type UnmarshalFieldError struct {
Key string
Type reflect.Type
Field reflect.StructField
}
func (e *UnmarshalFieldError) Error() string {
return fmt.Sprintf("json: cannot unmarshal object key %s into unexported field %s of type %s",
strconv.Quote(e.Key), e.Field.Name, e.Type.String(),
)
}
// An UnmarshalTypeError describes a JSON value that was
// not appropriate for a value of a specific Go type.
type UnmarshalTypeError struct {
Value string // description of JSON value - "bool", "array", "number -5"
Type reflect.Type // type of Go value it could not be assigned to
Offset int64 // error occurred after reading Offset bytes
Struct string // name of the struct type containing the field
Field string // the full path from root node to the field
}
func (e *UnmarshalTypeError) Error() string {
if e.Struct != "" || e.Field != "" {
return fmt.Sprintf("json: cannot unmarshal %s into Go struct field %s.%s of type %s",
e.Value, e.Struct, e.Field, e.Type,
)
}
return fmt.Sprintf("json: cannot unmarshal %s into Go value of type %s", e.Value, e.Type)
}
// An UnsupportedTypeError is returned by Marshal when attempting
// to encode an unsupported value type.
type UnsupportedTypeError struct {
Type reflect.Type
}
func (e *UnsupportedTypeError) Error() string {
return fmt.Sprintf("json: unsupported type: %s", e.Type)
}
type UnsupportedValueError struct {
Value reflect.Value
Str string
}
func (e *UnsupportedValueError) Error() string {
return fmt.Sprintf("json: unsupported value: %s", e.Str)
}
func ErrSyntax(msg string, offset int64) *SyntaxError {
return &SyntaxError{msg: msg, Offset: offset}
}
func ErrMarshaler(typ reflect.Type, err error, msg string) *MarshalerError {
return &MarshalerError{
Type: typ,
Err: err,
sourceFunc: msg,
}
}
func ErrExceededMaxDepth(c byte, cursor int64) *SyntaxError {
return &SyntaxError{
msg: fmt.Sprintf(`invalid character "%c" exceeded max depth`, c),
Offset: cursor,
}
}
func ErrNotAtBeginningOfValue(cursor int64) *SyntaxError {
return &SyntaxError{msg: "not at beginning of value", Offset: cursor}
}
func ErrUnexpectedEndOfJSON(msg string, cursor int64) *SyntaxError {
return &SyntaxError{
msg: fmt.Sprintf("json: %s unexpected end of JSON input", msg),
Offset: cursor,
}
}
func ErrExpected(msg string, cursor int64) *SyntaxError {
return &SyntaxError{msg: fmt.Sprintf("expected %s", msg), Offset: cursor}
}
func ErrInvalidCharacter(c byte, context string, cursor int64) *SyntaxError {
if c == 0 {
return &SyntaxError{
msg: fmt.Sprintf("json: invalid character as %s", context),
Offset: cursor,
}
}
return &SyntaxError{
msg: fmt.Sprintf("json: invalid character %c as %s", c, context),
Offset: cursor,
}
}

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@ -0,0 +1,263 @@
package runtime
import (
"reflect"
"unsafe"
)
// Type representing reflect.rtype for noescape trick
type Type struct{}
//go:linkname rtype_Align reflect.(*rtype).Align
//go:noescape
func rtype_Align(*Type) int
func (t *Type) Align() int {
return rtype_Align(t)
}
//go:linkname rtype_FieldAlign reflect.(*rtype).FieldAlign
//go:noescape
func rtype_FieldAlign(*Type) int
func (t *Type) FieldAlign() int {
return rtype_FieldAlign(t)
}
//go:linkname rtype_Method reflect.(*rtype).Method
//go:noescape
func rtype_Method(*Type, int) reflect.Method
func (t *Type) Method(a0 int) reflect.Method {
return rtype_Method(t, a0)
}
//go:linkname rtype_MethodByName reflect.(*rtype).MethodByName
//go:noescape
func rtype_MethodByName(*Type, string) (reflect.Method, bool)
func (t *Type) MethodByName(a0 string) (reflect.Method, bool) {
return rtype_MethodByName(t, a0)
}
//go:linkname rtype_NumMethod reflect.(*rtype).NumMethod
//go:noescape
func rtype_NumMethod(*Type) int
func (t *Type) NumMethod() int {
return rtype_NumMethod(t)
}
//go:linkname rtype_Name reflect.(*rtype).Name
//go:noescape
func rtype_Name(*Type) string
func (t *Type) Name() string {
return rtype_Name(t)
}
//go:linkname rtype_PkgPath reflect.(*rtype).PkgPath
//go:noescape
func rtype_PkgPath(*Type) string
func (t *Type) PkgPath() string {
return rtype_PkgPath(t)
}
//go:linkname rtype_Size reflect.(*rtype).Size
//go:noescape
func rtype_Size(*Type) uintptr
func (t *Type) Size() uintptr {
return rtype_Size(t)
}
//go:linkname rtype_String reflect.(*rtype).String
//go:noescape
func rtype_String(*Type) string
func (t *Type) String() string {
return rtype_String(t)
}
//go:linkname rtype_Kind reflect.(*rtype).Kind
//go:noescape
func rtype_Kind(*Type) reflect.Kind
func (t *Type) Kind() reflect.Kind {
return rtype_Kind(t)
}
//go:linkname rtype_Implements reflect.(*rtype).Implements
//go:noescape
func rtype_Implements(*Type, reflect.Type) bool
func (t *Type) Implements(u reflect.Type) bool {
return rtype_Implements(t, u)
}
//go:linkname rtype_AssignableTo reflect.(*rtype).AssignableTo
//go:noescape
func rtype_AssignableTo(*Type, reflect.Type) bool
func (t *Type) AssignableTo(u reflect.Type) bool {
return rtype_AssignableTo(t, u)
}
//go:linkname rtype_ConvertibleTo reflect.(*rtype).ConvertibleTo
//go:noescape
func rtype_ConvertibleTo(*Type, reflect.Type) bool
func (t *Type) ConvertibleTo(u reflect.Type) bool {
return rtype_ConvertibleTo(t, u)
}
//go:linkname rtype_Comparable reflect.(*rtype).Comparable
//go:noescape
func rtype_Comparable(*Type) bool
func (t *Type) Comparable() bool {
return rtype_Comparable(t)
}
//go:linkname rtype_Bits reflect.(*rtype).Bits
//go:noescape
func rtype_Bits(*Type) int
func (t *Type) Bits() int {
return rtype_Bits(t)
}
//go:linkname rtype_ChanDir reflect.(*rtype).ChanDir
//go:noescape
func rtype_ChanDir(*Type) reflect.ChanDir
func (t *Type) ChanDir() reflect.ChanDir {
return rtype_ChanDir(t)
}
//go:linkname rtype_IsVariadic reflect.(*rtype).IsVariadic
//go:noescape
func rtype_IsVariadic(*Type) bool
func (t *Type) IsVariadic() bool {
return rtype_IsVariadic(t)
}
//go:linkname rtype_Elem reflect.(*rtype).Elem
//go:noescape
func rtype_Elem(*Type) reflect.Type
func (t *Type) Elem() *Type {
return Type2RType(rtype_Elem(t))
}
//go:linkname rtype_Field reflect.(*rtype).Field
//go:noescape
func rtype_Field(*Type, int) reflect.StructField
func (t *Type) Field(i int) reflect.StructField {
return rtype_Field(t, i)
}
//go:linkname rtype_FieldByIndex reflect.(*rtype).FieldByIndex
//go:noescape
func rtype_FieldByIndex(*Type, []int) reflect.StructField
func (t *Type) FieldByIndex(index []int) reflect.StructField {
return rtype_FieldByIndex(t, index)
}
//go:linkname rtype_FieldByName reflect.(*rtype).FieldByName
//go:noescape
func rtype_FieldByName(*Type, string) (reflect.StructField, bool)
func (t *Type) FieldByName(name string) (reflect.StructField, bool) {
return rtype_FieldByName(t, name)
}
//go:linkname rtype_FieldByNameFunc reflect.(*rtype).FieldByNameFunc
//go:noescape
func rtype_FieldByNameFunc(*Type, func(string) bool) (reflect.StructField, bool)
func (t *Type) FieldByNameFunc(match func(string) bool) (reflect.StructField, bool) {
return rtype_FieldByNameFunc(t, match)
}
//go:linkname rtype_In reflect.(*rtype).In
//go:noescape
func rtype_In(*Type, int) reflect.Type
func (t *Type) In(i int) reflect.Type {
return rtype_In(t, i)
}
//go:linkname rtype_Key reflect.(*rtype).Key
//go:noescape
func rtype_Key(*Type) reflect.Type
func (t *Type) Key() *Type {
return Type2RType(rtype_Key(t))
}
//go:linkname rtype_Len reflect.(*rtype).Len
//go:noescape
func rtype_Len(*Type) int
func (t *Type) Len() int {
return rtype_Len(t)
}
//go:linkname rtype_NumField reflect.(*rtype).NumField
//go:noescape
func rtype_NumField(*Type) int
func (t *Type) NumField() int {
return rtype_NumField(t)
}
//go:linkname rtype_NumIn reflect.(*rtype).NumIn
//go:noescape
func rtype_NumIn(*Type) int
func (t *Type) NumIn() int {
return rtype_NumIn(t)
}
//go:linkname rtype_NumOut reflect.(*rtype).NumOut
//go:noescape
func rtype_NumOut(*Type) int
func (t *Type) NumOut() int {
return rtype_NumOut(t)
}
//go:linkname rtype_Out reflect.(*rtype).Out
//go:noescape
func rtype_Out(*Type, int) reflect.Type
//go:linkname PtrTo reflect.(*rtype).ptrTo
//go:noescape
func PtrTo(*Type) *Type
func (t *Type) Out(i int) reflect.Type {
return rtype_Out(t, i)
}
//go:linkname IfaceIndir reflect.ifaceIndir
//go:noescape
func IfaceIndir(*Type) bool
//go:linkname RType2Type reflect.toType
//go:noescape
func RType2Type(t *Type) reflect.Type
//go:nolint structcheck
type emptyInterface struct {
_ *Type
ptr unsafe.Pointer
}
func Type2RType(t reflect.Type) *Type {
return (*Type)(((*emptyInterface)(unsafe.Pointer(&t))).ptr)
}

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@ -0,0 +1,87 @@
package runtime
import (
"reflect"
"strings"
"unicode"
)
func getTag(field reflect.StructField) string {
return field.Tag.Get("json")
}
func IsIgnoredStructField(field reflect.StructField) bool {
if field.PkgPath != "" {
if field.Anonymous {
if !(field.Type.Kind() == reflect.Ptr && field.Type.Elem().Kind() == reflect.Struct) && field.Type.Kind() != reflect.Struct {
return true
}
} else {
// private field
return true
}
}
tag := getTag(field)
return tag == "-"
}
type StructTag struct {
Key string
IsTaggedKey bool
IsOmitEmpty bool
IsString bool
Field reflect.StructField
}
type StructTags []*StructTag
func (t StructTags) ExistsKey(key string) bool {
for _, tt := range t {
if tt.Key == key {
return true
}
}
return false
}
func isValidTag(s string) bool {
if s == "" {
return false
}
for _, c := range s {
switch {
case strings.ContainsRune("!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
// Backslash and quote chars are reserved, but
// otherwise any punctuation chars are allowed
// in a tag name.
case !unicode.IsLetter(c) && !unicode.IsDigit(c):
return false
}
}
return true
}
func StructTagFromField(field reflect.StructField) *StructTag {
keyName := field.Name
tag := getTag(field)
st := &StructTag{Field: field}
opts := strings.Split(tag, ",")
if len(opts) > 0 {
if opts[0] != "" && isValidTag(opts[0]) {
keyName = opts[0]
st.IsTaggedKey = true
}
}
st.Key = keyName
if len(opts) > 1 {
for _, opt := range opts[1:] {
switch opt {
case "omitempty":
st.IsOmitEmpty = true
case "string":
st.IsString = true
}
}
}
return st
}

View file

@ -0,0 +1,100 @@
package runtime
import (
"reflect"
"unsafe"
)
type SliceHeader struct {
Data unsafe.Pointer
Len int
Cap int
}
const (
maxAcceptableTypeAddrRange = 1024 * 1024 * 2 // 2 Mib
)
type TypeAddr struct {
BaseTypeAddr uintptr
MaxTypeAddr uintptr
AddrRange uintptr
AddrShift uintptr
}
var (
typeAddr *TypeAddr
alreadyAnalyzed bool
)
//go:linkname typelinks reflect.typelinks
func typelinks() ([]unsafe.Pointer, [][]int32)
//go:linkname rtypeOff reflect.rtypeOff
func rtypeOff(unsafe.Pointer, int32) unsafe.Pointer
func AnalyzeTypeAddr() *TypeAddr {
defer func() {
alreadyAnalyzed = true
}()
if alreadyAnalyzed {
return typeAddr
}
sections, offsets := typelinks()
if len(sections) != 1 {
return nil
}
if len(offsets) != 1 {
return nil
}
section := sections[0]
offset := offsets[0]
var (
min uintptr = uintptr(^uint(0))
max uintptr = 0
isAligned64 = true
isAligned32 = true
)
for i := 0; i < len(offset); i++ {
typ := (*Type)(rtypeOff(section, offset[i]))
addr := uintptr(unsafe.Pointer(typ))
if min > addr {
min = addr
}
if max < addr {
max = addr
}
if typ.Kind() == reflect.Ptr {
addr = uintptr(unsafe.Pointer(typ.Elem()))
if min > addr {
min = addr
}
if max < addr {
max = addr
}
}
isAligned64 = isAligned64 && (addr-min)&63 == 0
isAligned32 = isAligned32 && (addr-min)&31 == 0
}
addrRange := max - min
if addrRange == 0 {
return nil
}
var addrShift uintptr
if isAligned64 {
addrShift = 6
} else if isAligned32 {
addrShift = 5
}
cacheSize := addrRange >> addrShift
if cacheSize > maxAcceptableTypeAddrRange {
return nil
}
typeAddr = &TypeAddr{
BaseTypeAddr: min,
MaxTypeAddr: max,
AddrRange: addrRange,
AddrShift: addrShift,
}
return typeAddr
}

366
vendor/github.com/goccy/go-json/json.go generated vendored Normal file
View file

@ -0,0 +1,366 @@
package json
import (
"bytes"
"context"
"encoding/json"
"github.com/goccy/go-json/internal/encoder"
)
// Marshaler is the interface implemented by types that
// can marshal themselves into valid JSON.
type Marshaler interface {
MarshalJSON() ([]byte, error)
}
// MarshalerContext is the interface implemented by types that
// can marshal themselves into valid JSON with context.Context.
type MarshalerContext interface {
MarshalJSON(context.Context) ([]byte, error)
}
// Unmarshaler is the interface implemented by types
// that can unmarshal a JSON description of themselves.
// The input can be assumed to be a valid encoding of
// a JSON value. UnmarshalJSON must copy the JSON data
// if it wishes to retain the data after returning.
//
// By convention, to approximate the behavior of Unmarshal itself,
// Unmarshalers implement UnmarshalJSON([]byte("null")) as a no-op.
type Unmarshaler interface {
UnmarshalJSON([]byte) error
}
// UnmarshalerContext is the interface implemented by types
// that can unmarshal with context.Context a JSON description of themselves.
type UnmarshalerContext interface {
UnmarshalJSON(context.Context, []byte) error
}
// Marshal returns the JSON encoding of v.
//
// Marshal traverses the value v recursively.
// If an encountered value implements the Marshaler interface
// and is not a nil pointer, Marshal calls its MarshalJSON method
// to produce JSON. If no MarshalJSON method is present but the
// value implements encoding.TextMarshaler instead, Marshal calls
// its MarshalText method and encodes the result as a JSON string.
// The nil pointer exception is not strictly necessary
// but mimics a similar, necessary exception in the behavior of
// UnmarshalJSON.
//
// Otherwise, Marshal uses the following type-dependent default encodings:
//
// Boolean values encode as JSON booleans.
//
// Floating point, integer, and Number values encode as JSON numbers.
//
// String values encode as JSON strings coerced to valid UTF-8,
// replacing invalid bytes with the Unicode replacement rune.
// The angle brackets "<" and ">" are escaped to "\u003c" and "\u003e"
// to keep some browsers from misinterpreting JSON output as HTML.
// Ampersand "&" is also escaped to "\u0026" for the same reason.
// This escaping can be disabled using an Encoder that had SetEscapeHTML(false)
// called on it.
//
// Array and slice values encode as JSON arrays, except that
// []byte encodes as a base64-encoded string, and a nil slice
// encodes as the null JSON value.
//
// Struct values encode as JSON objects.
// Each exported struct field becomes a member of the object, using the
// field name as the object key, unless the field is omitted for one of the
// reasons given below.
//
// The encoding of each struct field can be customized by the format string
// stored under the "json" key in the struct field's tag.
// The format string gives the name of the field, possibly followed by a
// comma-separated list of options. The name may be empty in order to
// specify options without overriding the default field name.
//
// The "omitempty" option specifies that the field should be omitted
// from the encoding if the field has an empty value, defined as
// false, 0, a nil pointer, a nil interface value, and any empty array,
// slice, map, or string.
//
// As a special case, if the field tag is "-", the field is always omitted.
// Note that a field with name "-" can still be generated using the tag "-,".
//
// Examples of struct field tags and their meanings:
//
// // Field appears in JSON as key "myName".
// Field int `json:"myName"`
//
// // Field appears in JSON as key "myName" and
// // the field is omitted from the object if its value is empty,
// // as defined above.
// Field int `json:"myName,omitempty"`
//
// // Field appears in JSON as key "Field" (the default), but
// // the field is skipped if empty.
// // Note the leading comma.
// Field int `json:",omitempty"`
//
// // Field is ignored by this package.
// Field int `json:"-"`
//
// // Field appears in JSON as key "-".
// Field int `json:"-,"`
//
// The "string" option signals that a field is stored as JSON inside a
// JSON-encoded string. It applies only to fields of string, floating point,
// integer, or boolean types. This extra level of encoding is sometimes used
// when communicating with JavaScript programs:
//
// Int64String int64 `json:",string"`
//
// The key name will be used if it's a non-empty string consisting of
// only Unicode letters, digits, and ASCII punctuation except quotation
// marks, backslash, and comma.
//
// Anonymous struct fields are usually marshaled as if their inner exported fields
// were fields in the outer struct, subject to the usual Go visibility rules amended
// as described in the next paragraph.
// An anonymous struct field with a name given in its JSON tag is treated as
// having that name, rather than being anonymous.
// An anonymous struct field of interface type is treated the same as having
// that type as its name, rather than being anonymous.
//
// The Go visibility rules for struct fields are amended for JSON when
// deciding which field to marshal or unmarshal. If there are
// multiple fields at the same level, and that level is the least
// nested (and would therefore be the nesting level selected by the
// usual Go rules), the following extra rules apply:
//
// 1) Of those fields, if any are JSON-tagged, only tagged fields are considered,
// even if there are multiple untagged fields that would otherwise conflict.
//
// 2) If there is exactly one field (tagged or not according to the first rule), that is selected.
//
// 3) Otherwise there are multiple fields, and all are ignored; no error occurs.
//
// Handling of anonymous struct fields is new in Go 1.1.
// Prior to Go 1.1, anonymous struct fields were ignored. To force ignoring of
// an anonymous struct field in both current and earlier versions, give the field
// a JSON tag of "-".
//
// Map values encode as JSON objects. The map's key type must either be a
// string, an integer type, or implement encoding.TextMarshaler. The map keys
// are sorted and used as JSON object keys by applying the following rules,
// subject to the UTF-8 coercion described for string values above:
// - string keys are used directly
// - encoding.TextMarshalers are marshaled
// - integer keys are converted to strings
//
// Pointer values encode as the value pointed to.
// A nil pointer encodes as the null JSON value.
//
// Interface values encode as the value contained in the interface.
// A nil interface value encodes as the null JSON value.
//
// Channel, complex, and function values cannot be encoded in JSON.
// Attempting to encode such a value causes Marshal to return
// an UnsupportedTypeError.
//
// JSON cannot represent cyclic data structures and Marshal does not
// handle them. Passing cyclic structures to Marshal will result in
// an infinite recursion.
//
func Marshal(v interface{}) ([]byte, error) {
return MarshalWithOption(v)
}
// MarshalNoEscape returns the JSON encoding of v and doesn't escape v.
func MarshalNoEscape(v interface{}) ([]byte, error) {
return marshalNoEscape(v)
}
// MarshalContext returns the JSON encoding of v with context.Context and EncodeOption.
func MarshalContext(ctx context.Context, v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
return marshalContext(ctx, v, optFuncs...)
}
// MarshalWithOption returns the JSON encoding of v with EncodeOption.
func MarshalWithOption(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
return marshal(v, optFuncs...)
}
// MarshalIndent is like Marshal but applies Indent to format the output.
// Each JSON element in the output will begin on a new line beginning with prefix
// followed by one or more copies of indent according to the indentation nesting.
func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
return MarshalIndentWithOption(v, prefix, indent)
}
// MarshalIndentWithOption is like Marshal but applies Indent to format the output with EncodeOption.
func MarshalIndentWithOption(v interface{}, prefix, indent string, optFuncs ...EncodeOptionFunc) ([]byte, error) {
return marshalIndent(v, prefix, indent, optFuncs...)
}
// Unmarshal parses the JSON-encoded data and stores the result
// in the value pointed to by v. If v is nil or not a pointer,
// Unmarshal returns an InvalidUnmarshalError.
//
// Unmarshal uses the inverse of the encodings that
// Marshal uses, allocating maps, slices, and pointers as necessary,
// with the following additional rules:
//
// To unmarshal JSON into a pointer, Unmarshal first handles the case of
// the JSON being the JSON literal null. In that case, Unmarshal sets
// the pointer to nil. Otherwise, Unmarshal unmarshals the JSON into
// the value pointed at by the pointer. If the pointer is nil, Unmarshal
// allocates a new value for it to point to.
//
// To unmarshal JSON into a value implementing the Unmarshaler interface,
// Unmarshal calls that value's UnmarshalJSON method, including
// when the input is a JSON null.
// Otherwise, if the value implements encoding.TextUnmarshaler
// and the input is a JSON quoted string, Unmarshal calls that value's
// UnmarshalText method with the unquoted form of the string.
//
// To unmarshal JSON into a struct, Unmarshal matches incoming object
// keys to the keys used by Marshal (either the struct field name or its tag),
// preferring an exact match but also accepting a case-insensitive match. By
// default, object keys which don't have a corresponding struct field are
// ignored (see Decoder.DisallowUnknownFields for an alternative).
//
// To unmarshal JSON into an interface value,
// Unmarshal stores one of these in the interface value:
//
// bool, for JSON booleans
// float64, for JSON numbers
// string, for JSON strings
// []interface{}, for JSON arrays
// map[string]interface{}, for JSON objects
// nil for JSON null
//
// To unmarshal a JSON array into a slice, Unmarshal resets the slice length
// to zero and then appends each element to the slice.
// As a special case, to unmarshal an empty JSON array into a slice,
// Unmarshal replaces the slice with a new empty slice.
//
// To unmarshal a JSON array into a Go array, Unmarshal decodes
// JSON array elements into corresponding Go array elements.
// If the Go array is smaller than the JSON array,
// the additional JSON array elements are discarded.
// If the JSON array is smaller than the Go array,
// the additional Go array elements are set to zero values.
//
// To unmarshal a JSON object into a map, Unmarshal first establishes a map to
// use. If the map is nil, Unmarshal allocates a new map. Otherwise Unmarshal
// reuses the existing map, keeping existing entries. Unmarshal then stores
// key-value pairs from the JSON object into the map. The map's key type must
// either be any string type, an integer, implement json.Unmarshaler, or
// implement encoding.TextUnmarshaler.
//
// If a JSON value is not appropriate for a given target type,
// or if a JSON number overflows the target type, Unmarshal
// skips that field and completes the unmarshaling as best it can.
// If no more serious errors are encountered, Unmarshal returns
// an UnmarshalTypeError describing the earliest such error. In any
// case, it's not guaranteed that all the remaining fields following
// the problematic one will be unmarshaled into the target object.
//
// The JSON null value unmarshals into an interface, map, pointer, or slice
// by setting that Go value to nil. Because null is often used in JSON to mean
// ``not present,'' unmarshaling a JSON null into any other Go type has no effect
// on the value and produces no error.
//
// When unmarshaling quoted strings, invalid UTF-8 or
// invalid UTF-16 surrogate pairs are not treated as an error.
// Instead, they are replaced by the Unicode replacement
// character U+FFFD.
//
func Unmarshal(data []byte, v interface{}) error {
return unmarshal(data, v)
}
// UnmarshalContext parses the JSON-encoded data and stores the result
// in the value pointed to by v. If you implement the UnmarshalerContext interface,
// call it with ctx as an argument.
func UnmarshalContext(ctx context.Context, data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
return unmarshalContext(ctx, data, v)
}
func UnmarshalWithOption(data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
return unmarshal(data, v, optFuncs...)
}
func UnmarshalNoEscape(data []byte, v interface{}, optFuncs ...DecodeOptionFunc) error {
return unmarshalNoEscape(data, v, optFuncs...)
}
// A Token holds a value of one of these types:
//
// Delim, for the four JSON delimiters [ ] { }
// bool, for JSON booleans
// float64, for JSON numbers
// Number, for JSON numbers
// string, for JSON string literals
// nil, for JSON null
//
type Token = json.Token
// A Number represents a JSON number literal.
type Number = json.Number
// RawMessage is a raw encoded JSON value.
// It implements Marshaler and Unmarshaler and can
// be used to delay JSON decoding or precompute a JSON encoding.
type RawMessage = json.RawMessage
// A Delim is a JSON array or object delimiter, one of [ ] { or }.
type Delim = json.Delim
// Compact appends to dst the JSON-encoded src with
// insignificant space characters elided.
func Compact(dst *bytes.Buffer, src []byte) error {
return encoder.Compact(dst, src, false)
}
// Indent appends to dst an indented form of the JSON-encoded src.
// Each element in a JSON object or array begins on a new,
// indented line beginning with prefix followed by one or more
// copies of indent according to the indentation nesting.
// The data appended to dst does not begin with the prefix nor
// any indentation, to make it easier to embed inside other formatted JSON data.
// Although leading space characters (space, tab, carriage return, newline)
// at the beginning of src are dropped, trailing space characters
// at the end of src are preserved and copied to dst.
// For example, if src has no trailing spaces, neither will dst;
// if src ends in a trailing newline, so will dst.
func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
return encoder.Indent(dst, src, prefix, indent)
}
// HTMLEscape appends to dst the JSON-encoded src with <, >, &, U+2028 and U+2029
// characters inside string literals changed to \u003c, \u003e, \u0026, \u2028, \u2029
// so that the JSON will be safe to embed inside HTML <script> tags.
// For historical reasons, web browsers don't honor standard HTML
// escaping within <script> tags, so an alternative JSON encoding must
// be used.
func HTMLEscape(dst *bytes.Buffer, src []byte) {
var v interface{}
dec := NewDecoder(bytes.NewBuffer(src))
dec.UseNumber()
if err := dec.Decode(&v); err != nil {
return
}
buf, _ := marshal(v)
dst.Write(buf)
}
// Valid reports whether data is a valid JSON encoding.
func Valid(data []byte) bool {
var v interface{}
decoder := NewDecoder(bytes.NewReader(data))
err := decoder.Decode(&v)
if err != nil {
return false
}
if !decoder.More() {
return true
}
return decoder.InputOffset() >= int64(len(data))
}

46
vendor/github.com/goccy/go-json/option.go generated vendored Normal file
View file

@ -0,0 +1,46 @@
package json
import (
"github.com/goccy/go-json/internal/decoder"
"github.com/goccy/go-json/internal/encoder"
)
type EncodeOption = encoder.Option
type EncodeOptionFunc func(*EncodeOption)
// UnorderedMap doesn't sort when encoding map type.
func UnorderedMap() EncodeOptionFunc {
return func(opt *EncodeOption) {
opt.Flag |= encoder.UnorderedMapOption
}
}
// Debug outputs debug information when panic occurs during encoding.
func Debug() EncodeOptionFunc {
return func(opt *EncodeOption) {
opt.Flag |= encoder.DebugOption
}
}
// Colorize add an identifier for coloring to the string of the encoded result.
func Colorize(scheme *ColorScheme) EncodeOptionFunc {
return func(opt *EncodeOption) {
opt.Flag |= encoder.ColorizeOption
opt.ColorScheme = scheme
}
}
type DecodeOption = decoder.Option
type DecodeOptionFunc func(*DecodeOption)
// DecodeFieldPriorityFirstWin
// in the default behavior, go-json, like encoding/json,
// will reflect the result of the last evaluation when a field with the same name exists.
// This option allow you to change this behavior.
// this option reflects the result of the first evaluation if a field with the same name exists.
// This behavior has a performance advantage as it allows the subsequent strings to be skipped if all fields have been evaluated.
func DecodeFieldPriorityFirstWin() DecodeOptionFunc {
return func(opt *DecodeOption) {
opt.Flags |= decoder.FirstWinOption
}
}

13
vendor/modules.txt vendored
View file

@ -8,7 +8,7 @@ code.gitea.io/gitea-vet/checks
# code.gitea.io/sdk/gitea v0.14.0
## explicit
code.gitea.io/sdk/gitea
# gitea.com/go-chi/binding v0.0.0-20210301195521-1fe1c9a555e7
# gitea.com/go-chi/binding v0.0.0-20210609153201-b29e04170477
## explicit
gitea.com/go-chi/binding
# gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e
@ -422,6 +422,17 @@ github.com/gobwas/glob/syntax/ast
github.com/gobwas/glob/syntax/lexer
github.com/gobwas/glob/util/runes
github.com/gobwas/glob/util/strings
# github.com/goccy/go-json v0.7.4
## explicit
github.com/goccy/go-json
github.com/goccy/go-json/internal/decoder
github.com/goccy/go-json/internal/encoder
github.com/goccy/go-json/internal/encoder/vm
github.com/goccy/go-json/internal/encoder/vm_color
github.com/goccy/go-json/internal/encoder/vm_color_indent
github.com/goccy/go-json/internal/encoder/vm_indent
github.com/goccy/go-json/internal/errors
github.com/goccy/go-json/internal/runtime
# github.com/gogs/chardet v0.0.0-20191104214054-4b6791f73a28
## explicit
github.com/gogs/chardet