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authorLibravatar Terin Stock <terinjokes@gmail.com>2025-03-09 17:47:56 +0100
committerLibravatar Terin Stock <terinjokes@gmail.com>2025-03-10 01:59:49 +0100
commit3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch)
treef61faa581feaaeaba2542b9f2b8234a590684413 /vendor/google.golang.org/protobuf/internal/encoding/json/decode.go
parent[chore] update URLs to forked source (diff)
downloadgotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz
[chore] remove vendor
Diffstat (limited to 'vendor/google.golang.org/protobuf/internal/encoding/json/decode.go')
-rw-r--r--vendor/google.golang.org/protobuf/internal/encoding/json/decode.go340
1 files changed, 0 insertions, 340 deletions
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go b/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go
deleted file mode 100644
index ea1d3e65a..000000000
--- a/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go
+++ /dev/null
@@ -1,340 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package json
-
-import (
- "bytes"
- "fmt"
- "io"
- "regexp"
- "unicode/utf8"
-
- "google.golang.org/protobuf/internal/errors"
-)
-
-// call specifies which Decoder method was invoked.
-type call uint8
-
-const (
- readCall call = iota
- peekCall
-)
-
-const unexpectedFmt = "unexpected token %s"
-
-// ErrUnexpectedEOF means that EOF was encountered in the middle of the input.
-var ErrUnexpectedEOF = errors.New("%v", io.ErrUnexpectedEOF)
-
-// Decoder is a token-based JSON decoder.
-type Decoder struct {
- // lastCall is last method called, either readCall or peekCall.
- // Initial value is readCall.
- lastCall call
-
- // lastToken contains the last read token.
- lastToken Token
-
- // lastErr contains the last read error.
- lastErr error
-
- // openStack is a stack containing ObjectOpen and ArrayOpen values. The
- // top of stack represents the object or the array the current value is
- // directly located in.
- openStack []Kind
-
- // orig is used in reporting line and column.
- orig []byte
- // in contains the unconsumed input.
- in []byte
-}
-
-// NewDecoder returns a Decoder to read the given []byte.
-func NewDecoder(b []byte) *Decoder {
- return &Decoder{orig: b, in: b}
-}
-
-// Peek looks ahead and returns the next token kind without advancing a read.
-func (d *Decoder) Peek() (Token, error) {
- defer func() { d.lastCall = peekCall }()
- if d.lastCall == readCall {
- d.lastToken, d.lastErr = d.Read()
- }
- return d.lastToken, d.lastErr
-}
-
-// Read returns the next JSON token.
-// It will return an error if there is no valid token.
-func (d *Decoder) Read() (Token, error) {
- const scalar = Null | Bool | Number | String
-
- defer func() { d.lastCall = readCall }()
- if d.lastCall == peekCall {
- return d.lastToken, d.lastErr
- }
-
- tok, err := d.parseNext()
- if err != nil {
- return Token{}, err
- }
-
- switch tok.kind {
- case EOF:
- if len(d.openStack) != 0 ||
- d.lastToken.kind&scalar|ObjectClose|ArrayClose == 0 {
- return Token{}, ErrUnexpectedEOF
- }
-
- case Null:
- if !d.isValueNext() {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
-
- case Bool, Number:
- if !d.isValueNext() {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
-
- case String:
- if d.isValueNext() {
- break
- }
- // This string token should only be for a field name.
- if d.lastToken.kind&(ObjectOpen|comma) == 0 {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
- if len(d.in) == 0 {
- return Token{}, ErrUnexpectedEOF
- }
- if c := d.in[0]; c != ':' {
- return Token{}, d.newSyntaxError(d.currPos(), `unexpected character %s, missing ":" after field name`, string(c))
- }
- tok.kind = Name
- d.consume(1)
-
- case ObjectOpen, ArrayOpen:
- if !d.isValueNext() {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
- d.openStack = append(d.openStack, tok.kind)
-
- case ObjectClose:
- if len(d.openStack) == 0 ||
- d.lastToken.kind&(Name|comma) != 0 ||
- d.openStack[len(d.openStack)-1] != ObjectOpen {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
- d.openStack = d.openStack[:len(d.openStack)-1]
-
- case ArrayClose:
- if len(d.openStack) == 0 ||
- d.lastToken.kind == comma ||
- d.openStack[len(d.openStack)-1] != ArrayOpen {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
- d.openStack = d.openStack[:len(d.openStack)-1]
-
- case comma:
- if len(d.openStack) == 0 ||
- d.lastToken.kind&(scalar|ObjectClose|ArrayClose) == 0 {
- return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
- }
- }
-
- // Update d.lastToken only after validating token to be in the right sequence.
- d.lastToken = tok
-
- if d.lastToken.kind == comma {
- return d.Read()
- }
- return tok, nil
-}
-
-// Any sequence that looks like a non-delimiter (for error reporting).
-var errRegexp = regexp.MustCompile(`^([-+._a-zA-Z0-9]{1,32}|.)`)
-
-// parseNext parses for the next JSON token. It returns a Token object for
-// different types, except for Name. It does not handle whether the next token
-// is in a valid sequence or not.
-func (d *Decoder) parseNext() (Token, error) {
- // Trim leading spaces.
- d.consume(0)
-
- in := d.in
- if len(in) == 0 {
- return d.consumeToken(EOF, 0), nil
- }
-
- switch in[0] {
- case 'n':
- if n := matchWithDelim("null", in); n != 0 {
- return d.consumeToken(Null, n), nil
- }
-
- case 't':
- if n := matchWithDelim("true", in); n != 0 {
- return d.consumeBoolToken(true, n), nil
- }
-
- case 'f':
- if n := matchWithDelim("false", in); n != 0 {
- return d.consumeBoolToken(false, n), nil
- }
-
- case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
- if n, ok := parseNumber(in); ok {
- return d.consumeToken(Number, n), nil
- }
-
- case '"':
- s, n, err := d.parseString(in)
- if err != nil {
- return Token{}, err
- }
- return d.consumeStringToken(s, n), nil
-
- case '{':
- return d.consumeToken(ObjectOpen, 1), nil
-
- case '}':
- return d.consumeToken(ObjectClose, 1), nil
-
- case '[':
- return d.consumeToken(ArrayOpen, 1), nil
-
- case ']':
- return d.consumeToken(ArrayClose, 1), nil
-
- case ',':
- return d.consumeToken(comma, 1), nil
- }
- return Token{}, d.newSyntaxError(d.currPos(), "invalid value %s", errRegexp.Find(in))
-}
-
-// newSyntaxError returns an error with line and column information useful for
-// syntax errors.
-func (d *Decoder) newSyntaxError(pos int, f string, x ...any) error {
- e := errors.New(f, x...)
- line, column := d.Position(pos)
- return errors.New("syntax error (line %d:%d): %v", line, column, e)
-}
-
-// Position returns line and column number of given index of the original input.
-// It will panic if index is out of range.
-func (d *Decoder) Position(idx int) (line int, column int) {
- b := d.orig[:idx]
- line = bytes.Count(b, []byte("\n")) + 1
- if i := bytes.LastIndexByte(b, '\n'); i >= 0 {
- b = b[i+1:]
- }
- column = utf8.RuneCount(b) + 1 // ignore multi-rune characters
- return line, column
-}
-
-// currPos returns the current index position of d.in from d.orig.
-func (d *Decoder) currPos() int {
- return len(d.orig) - len(d.in)
-}
-
-// matchWithDelim matches s with the input b and verifies that the match
-// terminates with a delimiter of some form (e.g., r"[^-+_.a-zA-Z0-9]").
-// As a special case, EOF is considered a delimiter. It returns the length of s
-// if there is a match, else 0.
-func matchWithDelim(s string, b []byte) int {
- if !bytes.HasPrefix(b, []byte(s)) {
- return 0
- }
-
- n := len(s)
- if n < len(b) && isNotDelim(b[n]) {
- return 0
- }
- return n
-}
-
-// isNotDelim returns true if given byte is a not delimiter character.
-func isNotDelim(c byte) bool {
- return (c == '-' || c == '+' || c == '.' || c == '_' ||
- ('a' <= c && c <= 'z') ||
- ('A' <= c && c <= 'Z') ||
- ('0' <= c && c <= '9'))
-}
-
-// consume consumes n bytes of input and any subsequent whitespace.
-func (d *Decoder) consume(n int) {
- d.in = d.in[n:]
- for len(d.in) > 0 {
- switch d.in[0] {
- case ' ', '\n', '\r', '\t':
- d.in = d.in[1:]
- default:
- return
- }
- }
-}
-
-// isValueNext returns true if next type should be a JSON value: Null,
-// Number, String or Bool.
-func (d *Decoder) isValueNext() bool {
- if len(d.openStack) == 0 {
- return d.lastToken.kind == 0
- }
-
- start := d.openStack[len(d.openStack)-1]
- switch start {
- case ObjectOpen:
- return d.lastToken.kind&Name != 0
- case ArrayOpen:
- return d.lastToken.kind&(ArrayOpen|comma) != 0
- }
- panic(fmt.Sprintf(
- "unreachable logic in Decoder.isValueNext, lastToken.kind: %v, openStack: %v",
- d.lastToken.kind, start))
-}
-
-// consumeToken constructs a Token for given Kind with raw value derived from
-// current d.in and given size, and consumes the given size-length of it.
-func (d *Decoder) consumeToken(kind Kind, size int) Token {
- tok := Token{
- kind: kind,
- raw: d.in[:size],
- pos: len(d.orig) - len(d.in),
- }
- d.consume(size)
- return tok
-}
-
-// consumeBoolToken constructs a Token for a Bool kind with raw value derived from
-// current d.in and given size.
-func (d *Decoder) consumeBoolToken(b bool, size int) Token {
- tok := Token{
- kind: Bool,
- raw: d.in[:size],
- pos: len(d.orig) - len(d.in),
- boo: b,
- }
- d.consume(size)
- return tok
-}
-
-// consumeStringToken constructs a Token for a String kind with raw value derived
-// from current d.in and given size.
-func (d *Decoder) consumeStringToken(s string, size int) Token {
- tok := Token{
- kind: String,
- raw: d.in[:size],
- pos: len(d.orig) - len(d.in),
- str: s,
- }
- d.consume(size)
- return tok
-}
-
-// Clone returns a copy of the Decoder for use in reading ahead the next JSON
-// object, array or other values without affecting current Decoder.
-func (d *Decoder) Clone() *Decoder {
- ret := *d
- ret.openStack = append([]Kind(nil), ret.openStack...)
- return &ret
-}