50 lines
989 B
Go
50 lines
989 B
Go
package ormfield
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import (
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"encoding/binary"
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"io"
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"google.golang.org/protobuf/reflect/protoreflect"
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)
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// Uint64Codec encodes uint64 values as 8-byte big-endian integers.
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type Uint64Codec struct{}
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func (u Uint64Codec) FixedBufferSize() int {
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return 8
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}
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func (u Uint64Codec) ComputeBufferSize(protoreflect.Value) (int, error) {
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return u.FixedBufferSize(), nil
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}
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func (u Uint64Codec) IsOrdered() bool {
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return true
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}
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func (u Uint64Codec) Compare(v1, v2 protoreflect.Value) int {
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return compareUint(v1, v2)
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}
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func (u Uint64Codec) Decode(r Reader) (protoreflect.Value, error) {
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var x uint64
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err := binary.Read(r, binary.BigEndian, &x)
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return protoreflect.ValueOfUint64(x), err
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}
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func (u Uint64Codec) Encode(value protoreflect.Value, w io.Writer) error {
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return binary.Write(w, binary.BigEndian, value.Uint())
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}
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func compareUint(v1, v2 protoreflect.Value) int {
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x := v1.Uint()
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y := v2.Uint()
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if x == y {
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return 0
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} else if x < y {
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return -1
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} else {
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return 1
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}
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}
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