diff options
Diffstat (limited to 'src/pkg/json/decode.go')
-rw-r--r-- | src/pkg/json/decode.go | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/pkg/json/decode.go b/src/pkg/json/decode.go index 4f6562bd5..b7129f984 100644 --- a/src/pkg/json/decode.go +++ b/src/pkg/json/decode.go @@ -140,6 +140,7 @@ type decodeState struct { scan scanner nextscan scanner // for calls to nextValue savedError os.Error + tempstr string // scratch space to avoid some allocations } // errPhase is used for errors that should not happen unless @@ -470,6 +471,8 @@ func (d *decodeState) object(v reflect.Value) { // Figure out field corresponding to key. var subv reflect.Value + destring := false // whether the value is wrapped in a string to be decoded first + if mv.IsValid() { elemType := mv.Type().Elem() if !mapElem.IsValid() { @@ -486,7 +489,8 @@ func (d *decodeState) object(v reflect.Value) { if isValidTag(key) { for i := 0; i < sv.NumField(); i++ { f = st.Field(i) - if f.Tag.Get("json") == key { + tagName, _ := parseTag(f.Tag.Get("json")) + if tagName == key { ok = true break } @@ -508,6 +512,8 @@ func (d *decodeState) object(v reflect.Value) { } else { subv = sv.FieldByIndex(f.Index) } + _, opts := parseTag(f.Tag.Get("json")) + destring = opts.Contains("string") } } @@ -520,8 +526,12 @@ func (d *decodeState) object(v reflect.Value) { } // Read value. - d.value(subv) - + if destring { + d.value(reflect.ValueOf(&d.tempstr)) + d.literalStore([]byte(d.tempstr), subv) + } else { + d.value(subv) + } // Write value back to map; // if using struct, subv points into struct already. if mv.IsValid() { @@ -550,8 +560,12 @@ func (d *decodeState) literal(v reflect.Value) { // Scan read one byte too far; back up. d.off-- d.scan.undo(op) - item := d.data[start:d.off] + d.literalStore(d.data[start:d.off], v) +} + +// literalStore decodes a literal stored in item into v. +func (d *decodeState) literalStore(item []byte, v reflect.Value) { // Check for unmarshaler. wantptr := item[0] == 'n' // null unmarshaler, pv := d.indirect(v, wantptr) |