diff options
Diffstat (limited to 'vendor/github.com/goccy/go-json/internal/decoder/context.go')
| -rw-r--r-- | vendor/github.com/goccy/go-json/internal/decoder/context.go | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/vendor/github.com/goccy/go-json/internal/decoder/context.go b/vendor/github.com/goccy/go-json/internal/decoder/context.go deleted file mode 100644 index cb2ffdafd..000000000 --- a/vendor/github.com/goccy/go-json/internal/decoder/context.go +++ /dev/null @@ -1,254 +0,0 @@ -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 -} |