diff options
Diffstat (limited to 'vendor/github.com/bytedance/sonic/internal/decoder/optdec/decoder.go')
-rw-r--r-- | vendor/github.com/bytedance/sonic/internal/decoder/optdec/decoder.go | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/vendor/github.com/bytedance/sonic/internal/decoder/optdec/decoder.go b/vendor/github.com/bytedance/sonic/internal/decoder/optdec/decoder.go deleted file mode 100644 index 81eed34ea..000000000 --- a/vendor/github.com/bytedance/sonic/internal/decoder/optdec/decoder.go +++ /dev/null @@ -1,160 +0,0 @@ -package optdec - -import ( - "reflect" - "unsafe" - - "encoding/json" - "github.com/bytedance/sonic/internal/rt" - "github.com/bytedance/sonic/option" - "github.com/bytedance/sonic/internal/decoder/errors" - "github.com/bytedance/sonic/internal/decoder/consts" -) - - -type ( - MismatchTypeError = errors.MismatchTypeError - SyntaxError = errors.SyntaxError -) - -const ( - _F_allow_control = consts.F_allow_control - _F_copy_string = consts.F_copy_string - _F_disable_unknown = consts.F_disable_unknown - _F_disable_urc = consts.F_disable_urc - _F_use_int64 = consts.F_use_int64 - _F_use_number = consts.F_use_number - _F_validate_string = consts.F_validate_string -) - -type Options = consts.Options - -const ( - OptionUseInt64 = consts.OptionUseInt64 - OptionUseNumber = consts.OptionUseNumber - OptionUseUnicodeErrors = consts.OptionUseUnicodeErrors - OptionDisableUnknown = consts.OptionDisableUnknown - OptionCopyString = consts.OptionCopyString - OptionValidateString = consts.OptionValidateString -) - - -func Decode(s *string, i *int, f uint64, val interface{}) error { - vv := rt.UnpackEface(val) - vp := vv.Value - - /* check for nil type */ - if vv.Type == nil { - return &json.InvalidUnmarshalError{} - } - - /* must be a non-nil pointer */ - if vp == nil || vv.Type.Kind() != reflect.Ptr { - return &json.InvalidUnmarshalError{Type: vv.Type.Pack()} - } - - etp := rt.PtrElem(vv.Type) - - /* check the defined pointer type for issue 379 */ - if vv.Type.IsNamed() { - newp := vp - etp = vv.Type - vp = unsafe.Pointer(&newp) - } - - dec, err := findOrCompile(etp) - if err != nil { - return err - } - - /* parse into document */ - ctx, err := NewContext(*s, *i, uint64(f), etp) - defer ctx.Delete() - if ctx.Parser.Utf8Inv { - *s = ctx.Parser.Json - } - if err != nil { - goto fix_error; - } - err = dec.FromDom(vp, ctx.Root(), &ctx) - -fix_error: - err = fix_error(*s, *i, err) - - // update position at last - *i += ctx.Parser.Pos() - return err -} - -func fix_error(json string, pos int, err error) error { - if e, ok := err.(SyntaxError); ok { - return SyntaxError{ - Pos: int(e.Pos) + pos, - Src: json, - Msg: e.Msg, - } - } - - if e, ok := err.(MismatchTypeError); ok { - return &MismatchTypeError { - Pos: int(e.Pos) + pos, - Src: json, - Type: e.Type, - } - } - - return err -} - -// Pretouch compiles vt ahead-of-time to avoid JIT compilation on-the-fly, in -// order to reduce the first-hit latency. -// -// Opts are the compile options, for example, "option.WithCompileRecursiveDepth" is -// a compile option to set the depth of recursive compile for the nested struct type. -func Pretouch(vt reflect.Type, opts ...option.CompileOption) error { - cfg := option.DefaultCompileOptions() - for _, opt := range opts { - opt(&cfg) - } - return pretouchRec(map[reflect.Type]bool{vt:true}, cfg) -} - -func pretouchType(_vt reflect.Type, opts option.CompileOptions) (map[reflect.Type]bool, error) { - /* compile function */ - compiler := newCompiler().apply(opts) - decoder := func(vt *rt.GoType, _ ...interface{}) (interface{}, error) { - if f, err := compiler.compileType(_vt); err != nil { - return nil, err - } else { - return f, nil - } - } - - /* find or compile */ - vt := rt.UnpackType(_vt) - if val := programCache.Get(vt); val != nil { - return nil, nil - } else if _, err := programCache.Compute(vt, decoder); err == nil { - return compiler.visited, nil - } else { - return nil, err - } -} - -func pretouchRec(vtm map[reflect.Type]bool, opts option.CompileOptions) error { - if opts.RecursiveDepth < 0 || len(vtm) == 0 { - return nil - } - next := make(map[reflect.Type]bool) - for vt := range(vtm) { - sub, err := pretouchType(vt, opts) - if err != nil { - return err - } - for svt := range(sub) { - next[svt] = true - } - } - opts.RecursiveDepth -= 1 - return pretouchRec(next, opts) -} |