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// Copyright 2019 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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//go:build purego || appengine |
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// +build purego appengine |
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package impl |
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import ( |
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"reflect" |
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"google.golang.org/protobuf/encoding/protowire" |
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) |
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func sizeEnum(p pointer, f *coderFieldInfo, _ marshalOptions) (size int) { |
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v := p.v.Elem().Int() |
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return f.tagsize + protowire.SizeVarint(uint64(v)) |
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} |
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func appendEnum(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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v := p.v.Elem().Int() |
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b = protowire.AppendVarint(b, f.wiretag) |
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b = protowire.AppendVarint(b, uint64(v)) |
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return b, nil |
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} |
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func consumeEnum(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, _ unmarshalOptions) (out unmarshalOutput, err error) { |
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if wtyp != protowire.VarintType { |
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return out, errUnknown |
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} |
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v, n := protowire.ConsumeVarint(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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p.v.Elem().SetInt(int64(v)) |
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out.n = n |
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return out, nil |
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} |
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func mergeEnum(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { |
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dst.v.Elem().Set(src.v.Elem()) |
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} |
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var coderEnum = pointerCoderFuncs{ |
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size: sizeEnum, |
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marshal: appendEnum, |
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unmarshal: consumeEnum, |
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merge: mergeEnum, |
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} |
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func sizeEnumNoZero(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) { |
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if p.v.Elem().Int() == 0 { |
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return 0 |
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} |
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return sizeEnum(p, f, opts) |
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} |
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func appendEnumNoZero(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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if p.v.Elem().Int() == 0 { |
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return b, nil |
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} |
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return appendEnum(b, p, f, opts) |
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} |
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func mergeEnumNoZero(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { |
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if src.v.Elem().Int() != 0 { |
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dst.v.Elem().Set(src.v.Elem()) |
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} |
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} |
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var coderEnumNoZero = pointerCoderFuncs{ |
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size: sizeEnumNoZero, |
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marshal: appendEnumNoZero, |
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unmarshal: consumeEnum, |
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merge: mergeEnumNoZero, |
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} |
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func sizeEnumPtr(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) { |
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return sizeEnum(pointer{p.v.Elem()}, f, opts) |
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} |
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func appendEnumPtr(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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return appendEnum(b, pointer{p.v.Elem()}, f, opts) |
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} |
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func consumeEnumPtr(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) { |
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if wtyp != protowire.VarintType { |
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return out, errUnknown |
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} |
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if p.v.Elem().IsNil() { |
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p.v.Elem().Set(reflect.New(p.v.Elem().Type().Elem())) |
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} |
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return consumeEnum(b, pointer{p.v.Elem()}, wtyp, f, opts) |
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} |
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func mergeEnumPtr(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { |
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if !src.v.Elem().IsNil() { |
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v := reflect.New(dst.v.Type().Elem().Elem()) |
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v.Elem().Set(src.v.Elem().Elem()) |
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dst.v.Elem().Set(v) |
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} |
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} |
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var coderEnumPtr = pointerCoderFuncs{ |
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size: sizeEnumPtr, |
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marshal: appendEnumPtr, |
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unmarshal: consumeEnumPtr, |
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merge: mergeEnumPtr, |
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} |
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func sizeEnumSlice(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) { |
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s := p.v.Elem() |
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for i, llen := 0, s.Len(); i < llen; i++ { |
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size += protowire.SizeVarint(uint64(s.Index(i).Int())) + f.tagsize |
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} |
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return size |
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} |
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func appendEnumSlice(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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s := p.v.Elem() |
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for i, llen := 0, s.Len(); i < llen; i++ { |
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b = protowire.AppendVarint(b, f.wiretag) |
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b = protowire.AppendVarint(b, uint64(s.Index(i).Int())) |
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} |
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return b, nil |
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} |
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func consumeEnumSlice(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) { |
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s := p.v.Elem() |
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if wtyp == protowire.BytesType { |
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b, n := protowire.ConsumeBytes(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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for len(b) > 0 { |
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v, n := protowire.ConsumeVarint(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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rv := reflect.New(s.Type().Elem()).Elem() |
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rv.SetInt(int64(v)) |
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s.Set(reflect.Append(s, rv)) |
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b = b[n:] |
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} |
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out.n = n |
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return out, nil |
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} |
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if wtyp != protowire.VarintType { |
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return out, errUnknown |
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} |
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v, n := protowire.ConsumeVarint(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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rv := reflect.New(s.Type().Elem()).Elem() |
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rv.SetInt(int64(v)) |
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s.Set(reflect.Append(s, rv)) |
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out.n = n |
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return out, nil |
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} |
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func mergeEnumSlice(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { |
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dst.v.Elem().Set(reflect.AppendSlice(dst.v.Elem(), src.v.Elem())) |
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} |
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var coderEnumSlice = pointerCoderFuncs{ |
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size: sizeEnumSlice, |
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marshal: appendEnumSlice, |
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unmarshal: consumeEnumSlice, |
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merge: mergeEnumSlice, |
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} |
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func sizeEnumPackedSlice(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) { |
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s := p.v.Elem() |
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llen := s.Len() |
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if llen == 0 { |
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return 0 |
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} |
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n := 0 |
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for i := 0; i < llen; i++ { |
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n += protowire.SizeVarint(uint64(s.Index(i).Int())) |
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} |
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return f.tagsize + protowire.SizeBytes(n) |
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} |
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func appendEnumPackedSlice(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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s := p.v.Elem() |
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llen := s.Len() |
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if llen == 0 { |
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return b, nil |
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} |
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b = protowire.AppendVarint(b, f.wiretag) |
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n := 0 |
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for i := 0; i < llen; i++ { |
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n += protowire.SizeVarint(uint64(s.Index(i).Int())) |
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} |
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b = protowire.AppendVarint(b, uint64(n)) |
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for i := 0; i < llen; i++ { |
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b = protowire.AppendVarint(b, uint64(s.Index(i).Int())) |
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} |
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return b, nil |
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} |
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var coderEnumPackedSlice = pointerCoderFuncs{ |
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size: sizeEnumPackedSlice, |
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marshal: appendEnumPackedSlice, |
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unmarshal: consumeEnumSlice, |
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merge: mergeEnumSlice, |
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} |