107 lines
2.0 KiB
Go
107 lines
2.0 KiB
Go
package decoding
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import (
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"encoding/binary"
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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) asUint(offset int, k reflect.Kind) (uint64, int, error) {
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code, _, err := d.readSize1(offset)
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if err != nil {
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return 0, 0, err
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}
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switch {
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case d.isPositiveFixNum(code):
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b, offset, err := d.readSize1(offset)
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if err != nil {
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return 0, 0, err
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}
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return uint64(b), offset, nil
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case d.isNegativeFixNum(code):
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b, offset, err := d.readSize1(offset)
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if err != nil {
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return 0, 0, err
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}
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return uint64(int8(b)), offset, nil
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case code == def.Uint8:
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offset++
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b, offset, err := d.readSize1(offset)
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if err != nil {
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return 0, 0, err
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}
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return uint64(uint8(b)), offset, nil
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case code == def.Int8:
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offset++
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b, offset, err := d.readSize1(offset)
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if err != nil {
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return 0, 0, err
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}
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return uint64(int8(b)), offset, nil
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case code == def.Uint16:
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offset++
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bs, offset, err := d.readSize2(offset)
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if err != nil {
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return 0, 0, err
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}
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v := binary.BigEndian.Uint16(bs)
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return uint64(v), offset, nil
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case code == def.Int16:
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offset++
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bs, offset, err := d.readSize2(offset)
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if err != nil {
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return 0, 0, err
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}
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v := int16(binary.BigEndian.Uint16(bs))
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return uint64(v), offset, nil
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case code == def.Uint32:
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offset++
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bs, offset, err := d.readSize4(offset)
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if err != nil {
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return 0, 0, err
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}
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v := binary.BigEndian.Uint32(bs)
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return uint64(v), offset, nil
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case code == def.Int32:
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offset++
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bs, offset, err := d.readSize4(offset)
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if err != nil {
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return 0, 0, err
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}
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v := int32(binary.BigEndian.Uint32(bs))
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return uint64(v), offset, nil
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case code == def.Uint64:
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offset++
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bs, offset, err := d.readSize8(offset)
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if err != nil {
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return 0, 0, err
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}
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return binary.BigEndian.Uint64(bs), offset, nil
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case code == def.Int64:
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offset++
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bs, offset, err := d.readSize8(offset)
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if err != nil {
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return 0, 0, err
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}
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return binary.BigEndian.Uint64(bs), offset, nil
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case code == def.Nil:
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offset++
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return 0, offset, nil
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}
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return 0, 0, d.errorTemplate(code, k)
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}
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