115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
package decoding
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import (
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"encoding/binary"
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"fmt"
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"math"
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"reflect"
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"github.com/shamaton/msgpack/v2/def"
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)
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func (d *decoder) asComplex64(offset int, k reflect.Kind) (complex64, int, error) {
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code, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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switch code {
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case def.Fixext8:
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t, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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if int8(t) != def.ComplexTypeCode() {
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return complex(0, 0), 0, fmt.Errorf("fixext8. complex type is diffrent %d, %d", t, def.ComplexTypeCode())
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}
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rb, offset, err := d.readSize4(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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ib, offset, err := d.readSize4(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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r := math.Float32frombits(binary.BigEndian.Uint32(rb))
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i := math.Float32frombits(binary.BigEndian.Uint32(ib))
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return complex(r, i), offset, nil
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case def.Fixext16:
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t, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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if int8(t) != def.ComplexTypeCode() {
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return complex(0, 0), 0, fmt.Errorf("fixext16. complex type is diffrent %d, %d", t, def.ComplexTypeCode())
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}
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rb, offset, err := d.readSize8(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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ib, offset, err := d.readSize8(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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r := math.Float64frombits(binary.BigEndian.Uint64(rb))
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i := math.Float64frombits(binary.BigEndian.Uint64(ib))
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return complex64(complex(r, i)), offset, nil
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}
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return complex(0, 0), 0, fmt.Errorf("should not reach this line!! code %x decoding %v", code, k)
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}
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func (d *decoder) asComplex128(offset int, k reflect.Kind) (complex128, int, error) {
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code, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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switch code {
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case def.Fixext8:
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t, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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if int8(t) != def.ComplexTypeCode() {
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return complex(0, 0), 0, fmt.Errorf("fixext8. complex type is diffrent %d, %d", t, def.ComplexTypeCode())
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}
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rb, offset, err := d.readSize4(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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ib, offset, err := d.readSize4(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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r := math.Float32frombits(binary.BigEndian.Uint32(rb))
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i := math.Float32frombits(binary.BigEndian.Uint32(ib))
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return complex128(complex(r, i)), offset, nil
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case def.Fixext16:
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t, offset, err := d.readSize1(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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if int8(t) != def.ComplexTypeCode() {
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return complex(0, 0), 0, fmt.Errorf("fixext16. complex type is diffrent %d, %d", t, def.ComplexTypeCode())
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}
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rb, offset, err := d.readSize8(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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ib, offset, err := d.readSize8(offset)
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if err != nil {
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return complex(0, 0), 0, err
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}
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r := math.Float64frombits(binary.BigEndian.Uint64(rb))
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i := math.Float64frombits(binary.BigEndian.Uint64(ib))
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return complex(r, i), offset, nil
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}
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return complex(0, 0), 0, fmt.Errorf("should not reach this line!! code %x decoding %v", code, k)
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}
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