forked from TrueCloudLab/frostfs-api-go
[#265] proto: Implement functions for double (float64) protobuf data type
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich
Leonard Lyubich
parent
101d14d405
commit
0cbb8d0913
4 changed files with 95 additions and 21 deletions
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@ -8,6 +8,7 @@ package proto
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import (
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"encoding/binary"
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"math"
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"math/bits"
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"reflect"
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)
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@ -360,3 +361,26 @@ func Fixed64Size(fNum int, v uint64) int {
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return VarUIntSize(uint64(prefix)) + 8
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}
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func Float64Marshal(field int, buf []byte, v float64) (int, error) {
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if v == 0 {
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return 0, nil
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}
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prefix := field<<3 | 1
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i := binary.PutUvarint(buf, uint64(prefix))
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binary.LittleEndian.PutUint64(buf[i:], math.Float64bits(v))
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return i + 8, nil
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}
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func Float64Size(fNum int, v float64) int {
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if v == 0 {
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return 0
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}
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prefix := fNum<<3 | 1
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return VarUIntSize(uint64(prefix)) + 8
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}
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@ -23,6 +23,7 @@ type stablePrimitives struct {
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FieldG uint64
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FieldH SomeEnum
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FieldI uint64 // fixed64
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FieldJ float64
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}
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type stableRepPrimitives struct {
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@ -133,6 +134,16 @@ func (s *stablePrimitives) stableMarshal(buf []byte, wrongField bool) ([]byte, e
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}
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i += offset
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fieldNum = 206
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if wrongField {
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fieldNum++
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}
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offset, err = proto.Float64Marshal(fieldNum, buf, s.FieldJ)
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if err != nil {
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return nil, errors.Wrap(err, "can't marshal field J")
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}
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i += offset
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fieldNum = 300
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if wrongField {
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fieldNum++
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@ -155,6 +166,7 @@ func (s *stablePrimitives) stableSize() int {
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proto.Int64Size(203, s.FieldF) +
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proto.UInt64Size(204, s.FieldG) +
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proto.Fixed64Size(205, s.FieldI) +
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proto.Float64Size(206, s.FieldJ) +
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proto.EnumSize(300, int32(s.FieldH))
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}
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@ -453,6 +465,19 @@ func TestFixed64Marshal(t *testing.T) {
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})
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}
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func TestFloat64Marshal(t *testing.T) {
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t.Run("zero", func(t *testing.T) {
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testFloat64Marshal(t, 0, false)
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})
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t.Run("non zero", func(t *testing.T) {
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f := math.Float64frombits(12345677890)
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testFloat64Marshal(t, f, false)
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testFloat64Marshal(t, f, true)
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})
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}
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func testMarshal(t *testing.T, c stablePrimitives, tr test.Primitives, wrongField bool) *test.Primitives {
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var (
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wire []byte
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@ -589,6 +614,21 @@ func testUInt64Marshal(t *testing.T, n uint64, wrongField bool) {
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}
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}
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func testFloat64Marshal(t *testing.T, n float64, wrongField bool) {
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var (
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custom = stablePrimitives{FieldJ: n}
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transport = test.Primitives{FieldJ: n}
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)
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result := testMarshal(t, custom, transport, wrongField)
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if !wrongField {
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require.Equal(t, n, result.FieldJ)
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} else {
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require.EqualValues(t, 0, result.FieldJ)
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}
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}
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func testEnumMarshal(t *testing.T, e SomeEnum, wrongField bool) {
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var (
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custom = stablePrimitives{FieldH: e}
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51
util/proto/test/test.pb.go
generated
51
util/proto/test/test.pb.go
generated
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@ -87,6 +87,7 @@ type Primitives struct {
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FieldF int64 `protobuf:"varint,203,opt,name=field_f,json=fieldF,proto3" json:"field_f,omitempty"`
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FieldG uint64 `protobuf:"varint,204,opt,name=field_g,json=fieldG,proto3" json:"field_g,omitempty"`
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FieldI uint64 `protobuf:"fixed64,205,opt,name=field_i,json=fieldI,proto3" json:"field_i,omitempty"`
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FieldJ float64 `protobuf:"fixed64,206,opt,name=field_j,json=fieldJ,proto3" json:"field_j,omitempty"`
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FieldH Primitives_SomeEnum `protobuf:"varint,300,opt,name=field_h,json=fieldH,proto3,enum=test.Primitives_SomeEnum" json:"field_h,omitempty"`
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}
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@ -178,6 +179,13 @@ func (x *Primitives) GetFieldI() uint64 {
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return 0
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}
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func (x *Primitives) GetFieldJ() float64 {
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if x != nil {
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return x.FieldJ
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}
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return 0
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}
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func (x *Primitives) GetFieldH() Primitives_SomeEnum {
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if x != nil {
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return x.FieldH
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@ -277,7 +285,7 @@ var File_util_proto_test_test_proto protoreflect.FileDescriptor
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var file_util_proto_test_test_proto_rawDesc = []byte{
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0x0a, 0x1a, 0x75, 0x74, 0x69, 0x6c, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x74, 0x65, 0x73,
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0x74, 0x2f, 0x74, 0x65, 0x73, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x04, 0x74, 0x65,
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0x73, 0x74, 0x22, 0xcd, 0x02, 0x0a, 0x0a, 0x50, 0x72, 0x69, 0x6d, 0x69, 0x74, 0x69, 0x76, 0x65,
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@ -291,26 +299,27 @@ var file_util_proto_test_test_proto_rawDesc = []byte{
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}
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var (
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@ -13,6 +13,7 @@ message Primitives {
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int64 field_f = 203;
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uint64 field_g = 204;
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fixed64 field_i = 205;
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double field_j = 206;
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enum SomeEnum {
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UNKNOWN = 0;
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