diff options
Diffstat (limited to 'vendor/github.com/vmihailenco/msgpack/v5/decode_slice.go')
-rw-r--r-- | vendor/github.com/vmihailenco/msgpack/v5/decode_slice.go | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/vendor/github.com/vmihailenco/msgpack/v5/decode_slice.go b/vendor/github.com/vmihailenco/msgpack/v5/decode_slice.go deleted file mode 100644 index 9c155f2ba..000000000 --- a/vendor/github.com/vmihailenco/msgpack/v5/decode_slice.go +++ /dev/null @@ -1,198 +0,0 @@ -package msgpack - -import ( - "fmt" - "reflect" - - "github.com/vmihailenco/msgpack/v5/msgpcode" -) - -var sliceStringPtrType = reflect.TypeOf((*[]string)(nil)) - -// DecodeArrayLen decodes array length. Length is -1 when array is nil. -func (d *Decoder) DecodeArrayLen() (int, error) { - c, err := d.readCode() - if err != nil { - return 0, err - } - return d.arrayLen(c) -} - -func (d *Decoder) arrayLen(c byte) (int, error) { - if c == msgpcode.Nil { - return -1, nil - } else if c >= msgpcode.FixedArrayLow && c <= msgpcode.FixedArrayHigh { - return int(c & msgpcode.FixedArrayMask), nil - } - switch c { - case msgpcode.Array16: - n, err := d.uint16() - return int(n), err - case msgpcode.Array32: - n, err := d.uint32() - return int(n), err - } - return 0, fmt.Errorf("msgpack: invalid code=%x decoding array length", c) -} - -func decodeStringSliceValue(d *Decoder, v reflect.Value) error { - ptr := v.Addr().Convert(sliceStringPtrType).Interface().(*[]string) - return d.decodeStringSlicePtr(ptr) -} - -func (d *Decoder) decodeStringSlicePtr(ptr *[]string) error { - n, err := d.DecodeArrayLen() - if err != nil { - return err - } - if n == -1 { - return nil - } - - ss := makeStrings(*ptr, n, d.flags&disableAllocLimitFlag != 0) - for i := 0; i < n; i++ { - s, err := d.DecodeString() - if err != nil { - return err - } - ss = append(ss, s) - } - *ptr = ss - - return nil -} - -func makeStrings(s []string, n int, noLimit bool) []string { - if !noLimit && n > sliceAllocLimit { - n = sliceAllocLimit - } - - if s == nil { - return make([]string, 0, n) - } - - if cap(s) >= n { - return s[:0] - } - - s = s[:cap(s)] - s = append(s, make([]string, n-len(s))...) - return s[:0] -} - -func decodeSliceValue(d *Decoder, v reflect.Value) error { - n, err := d.DecodeArrayLen() - if err != nil { - return err - } - - if n == -1 { - v.Set(reflect.Zero(v.Type())) - return nil - } - if n == 0 && v.IsNil() { - v.Set(reflect.MakeSlice(v.Type(), 0, 0)) - return nil - } - - if v.Cap() >= n { - v.Set(v.Slice(0, n)) - } else if v.Len() < v.Cap() { - v.Set(v.Slice(0, v.Cap())) - } - - noLimit := d.flags&disableAllocLimitFlag != 1 - - if noLimit && n > v.Len() { - v.Set(growSliceValue(v, n, noLimit)) - } - - for i := 0; i < n; i++ { - if !noLimit && i >= v.Len() { - v.Set(growSliceValue(v, n, noLimit)) - } - - elem := v.Index(i) - if err := d.DecodeValue(elem); err != nil { - return err - } - } - - return nil -} - -func growSliceValue(v reflect.Value, n int, noLimit bool) reflect.Value { - diff := n - v.Len() - if !noLimit && diff > sliceAllocLimit { - diff = sliceAllocLimit - } - v = reflect.AppendSlice(v, reflect.MakeSlice(v.Type(), diff, diff)) - return v -} - -func decodeArrayValue(d *Decoder, v reflect.Value) error { - n, err := d.DecodeArrayLen() - if err != nil { - return err - } - - if n == -1 { - return nil - } - if n > v.Len() { - return fmt.Errorf("%s len is %d, but msgpack has %d elements", v.Type(), v.Len(), n) - } - - for i := 0; i < n; i++ { - sv := v.Index(i) - if err := d.DecodeValue(sv); err != nil { - return err - } - } - - return nil -} - -func (d *Decoder) DecodeSlice() ([]interface{}, error) { - c, err := d.readCode() - if err != nil { - return nil, err - } - return d.decodeSlice(c) -} - -func (d *Decoder) decodeSlice(c byte) ([]interface{}, error) { - n, err := d.arrayLen(c) - if err != nil { - return nil, err - } - if n == -1 { - return nil, nil - } - - s := make([]interface{}, 0, n) - for i := 0; i < n; i++ { - v, err := d.decodeInterfaceCond() - if err != nil { - return nil, err - } - s = append(s, v) - } - - return s, nil -} - -func (d *Decoder) skipSlice(c byte) error { - n, err := d.arrayLen(c) - if err != nil { - return err - } - - for i := 0; i < n; i++ { - if err := d.Skip(); err != nil { - return err - } - } - - return nil -} |