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gitea/vendor/github.com/mailru/easyjson/helpers.go
6543 12a1f914f4
Vendor Update Go Libs (#13166)
* update github.com/alecthomas/chroma v0.8.0 -> v0.8.1

* github.com/blevesearch/bleve v1.0.10 -> v1.0.12

* editorconfig-core-go v2.1.1 -> v2.3.7

* github.com/gliderlabs/ssh v0.2.2 -> v0.3.1

* migrate editorconfig.ParseBytes to Parse

* github.com/shurcooL/vfsgen to 0d455de96546

* github.com/go-git/go-git/v5 v5.1.0 -> v5.2.0

* github.com/google/uuid v1.1.1 -> v1.1.2

* github.com/huandu/xstrings v1.3.0 -> v1.3.2

* github.com/klauspost/compress v1.10.11 -> v1.11.1

* github.com/markbates/goth v1.61.2 -> v1.65.0

* github.com/mattn/go-sqlite3 v1.14.0 -> v1.14.4

* github.com/mholt/archiver v3.3.0 -> v3.3.2

* github.com/microcosm-cc/bluemonday 4f7140c49acb -> v1.0.4

* github.com/minio/minio-go v7.0.4 -> v7.0.5

* github.com/olivere/elastic v7.0.9 -> v7.0.20

* github.com/urfave/cli v1.20.0 -> v1.22.4

* github.com/prometheus/client_golang v1.1.0 -> v1.8.0

* github.com/xanzy/go-gitlab v0.37.0 -> v0.38.1

* mvdan.cc/xurls v2.1.0 -> v2.2.0

Co-authored-by: Lauris BH <lauris@nix.lv>
2020-10-16 01:06:27 -04:00

115 lines
3.1 KiB
Go
Vendored

// Package easyjson contains marshaler/unmarshaler interfaces and helper functions.
package easyjson
import (
"io"
"io/ioutil"
"net/http"
"strconv"
"unsafe"
"github.com/mailru/easyjson/jlexer"
"github.com/mailru/easyjson/jwriter"
)
// Marshaler is an easyjson-compatible marshaler interface.
type Marshaler interface {
MarshalEasyJSON(w *jwriter.Writer)
}
// Marshaler is an easyjson-compatible unmarshaler interface.
type Unmarshaler interface {
UnmarshalEasyJSON(w *jlexer.Lexer)
}
// MarshalerUnmarshaler is an easyjson-compatible marshaler/unmarshaler interface.
type MarshalerUnmarshaler interface {
Marshaler
Unmarshaler
}
// Optional defines an undefined-test method for a type to integrate with 'omitempty' logic.
type Optional interface {
IsDefined() bool
}
// UnknownsUnmarshaler provides a method to unmarshal unknown struct fileds and save them as you want
type UnknownsUnmarshaler interface {
UnmarshalUnknown(in *jlexer.Lexer, key string)
}
// UnknownsMarshaler provides a method to write additional struct fields
type UnknownsMarshaler interface {
MarshalUnknowns(w *jwriter.Writer, first bool)
}
func isNilInterface(i interface{}) bool {
return (*[2]uintptr)(unsafe.Pointer(&i))[1] == 0
}
// Marshal returns data as a single byte slice. Method is suboptimal as the data is likely to be copied
// from a chain of smaller chunks.
func Marshal(v Marshaler) ([]byte, error) {
if isNilInterface(v) {
return nullBytes, nil
}
w := jwriter.Writer{}
v.MarshalEasyJSON(&w)
return w.BuildBytes()
}
// MarshalToWriter marshals the data to an io.Writer.
func MarshalToWriter(v Marshaler, w io.Writer) (written int, err error) {
if isNilInterface(v) {
return w.Write(nullBytes)
}
jw := jwriter.Writer{}
v.MarshalEasyJSON(&jw)
return jw.DumpTo(w)
}
// MarshalToHTTPResponseWriter sets Content-Length and Content-Type headers for the
// http.ResponseWriter, and send the data to the writer. started will be equal to
// false if an error occurred before any http.ResponseWriter methods were actually
// invoked (in this case a 500 reply is possible).
func MarshalToHTTPResponseWriter(v Marshaler, w http.ResponseWriter) (started bool, written int, err error) {
if isNilInterface(v) {
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Content-Length", strconv.Itoa(len(nullBytes)))
written, err = w.Write(nullBytes)
return true, written, err
}
jw := jwriter.Writer{}
v.MarshalEasyJSON(&jw)
if jw.Error != nil {
return false, 0, jw.Error
}
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Content-Length", strconv.Itoa(jw.Size()))
started = true
written, err = jw.DumpTo(w)
return
}
// Unmarshal decodes the JSON in data into the object.
func Unmarshal(data []byte, v Unmarshaler) error {
l := jlexer.Lexer{Data: data}
v.UnmarshalEasyJSON(&l)
return l.Error()
}
// UnmarshalFromReader reads all the data in the reader and decodes as JSON into the object.
func UnmarshalFromReader(r io.Reader, v Unmarshaler) error {
data, err := ioutil.ReadAll(r)
if err != nil {
return err
}
l := jlexer.Lexer{Data: data}
v.UnmarshalEasyJSON(&l)
return l.Error()
}