diff options
Diffstat (limited to 'internal/impl/merge.go')
| -rw-r--r-- | internal/impl/merge.go | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/internal/impl/merge.go b/internal/impl/merge.go deleted file mode 100644 index c65bbc04..00000000 --- a/internal/impl/merge.go +++ /dev/null @@ -1,176 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package impl - -import ( - "fmt" - "reflect" - - "google.golang.org/protobuf/proto" - pref "google.golang.org/protobuf/reflect/protoreflect" - piface "google.golang.org/protobuf/runtime/protoiface" -) - -type mergeOptions struct{} - -func (o mergeOptions) Merge(dst, src proto.Message) { - proto.Merge(dst, src) -} - -// merge is protoreflect.Methods.Merge. -func (mi *MessageInfo) merge(in piface.MergeInput) piface.MergeOutput { - dp, ok := mi.getPointer(in.Destination) - if !ok { - return piface.MergeOutput{} - } - sp, ok := mi.getPointer(in.Source) - if !ok { - return piface.MergeOutput{} - } - mi.mergePointer(dp, sp, mergeOptions{}) - return piface.MergeOutput{Flags: piface.MergeComplete} -} - -func (mi *MessageInfo) mergePointer(dst, src pointer, opts mergeOptions) { - mi.init() - if dst.IsNil() { - panic(fmt.Sprintf("invalid value: merging into nil message")) - } - if src.IsNil() { - return - } - for _, f := range mi.orderedCoderFields { - if f.funcs.merge == nil { - continue - } - sfptr := src.Apply(f.offset) - if f.isPointer && sfptr.Elem().IsNil() { - continue - } - f.funcs.merge(dst.Apply(f.offset), sfptr, f, opts) - } - if mi.extensionOffset.IsValid() { - sext := src.Apply(mi.extensionOffset).Extensions() - dext := dst.Apply(mi.extensionOffset).Extensions() - if *dext == nil { - *dext = make(map[int32]ExtensionField) - } - for num, sx := range *sext { - xt := sx.Type() - xi := getExtensionFieldInfo(xt) - if xi.funcs.merge == nil { - continue - } - dx := (*dext)[num] - var dv pref.Value - if dx.Type() == sx.Type() { - dv = dx.Value() - } - if !dv.IsValid() && xi.unmarshalNeedsValue { - dv = xt.New() - } - dv = xi.funcs.merge(dv, sx.Value(), opts) - dx.Set(sx.Type(), dv) - (*dext)[num] = dx - } - } - if mi.unknownOffset.IsValid() { - su := mi.getUnknownBytes(src) - if su != nil && len(*su) > 0 { - du := mi.mutableUnknownBytes(dst) - *du = append(*du, *su...) - } - } -} - -func mergeScalarValue(dst, src pref.Value, opts mergeOptions) pref.Value { - return src -} - -func mergeBytesValue(dst, src pref.Value, opts mergeOptions) pref.Value { - return pref.ValueOfBytes(append(emptyBuf[:], src.Bytes()...)) -} - -func mergeListValue(dst, src pref.Value, opts mergeOptions) pref.Value { - dstl := dst.List() - srcl := src.List() - for i, llen := 0, srcl.Len(); i < llen; i++ { - dstl.Append(srcl.Get(i)) - } - return dst -} - -func mergeBytesListValue(dst, src pref.Value, opts mergeOptions) pref.Value { - dstl := dst.List() - srcl := src.List() - for i, llen := 0, srcl.Len(); i < llen; i++ { - sb := srcl.Get(i).Bytes() - db := append(emptyBuf[:], sb...) - dstl.Append(pref.ValueOfBytes(db)) - } - return dst -} - -func mergeMessageListValue(dst, src pref.Value, opts mergeOptions) pref.Value { - dstl := dst.List() - srcl := src.List() - for i, llen := 0, srcl.Len(); i < llen; i++ { - sm := srcl.Get(i).Message() - dm := proto.Clone(sm.Interface()).ProtoReflect() - dstl.Append(pref.ValueOfMessage(dm)) - } - return dst -} - -func mergeMessageValue(dst, src pref.Value, opts mergeOptions) pref.Value { - opts.Merge(dst.Message().Interface(), src.Message().Interface()) - return dst -} - -func mergeMessage(dst, src pointer, f *coderFieldInfo, opts mergeOptions) { - if f.mi != nil { - if dst.Elem().IsNil() { - dst.SetPointer(pointerOfValue(reflect.New(f.mi.GoReflectType.Elem()))) - } - f.mi.mergePointer(dst.Elem(), src.Elem(), opts) - } else { - dm := dst.AsValueOf(f.ft).Elem() - sm := src.AsValueOf(f.ft).Elem() - if dm.IsNil() { - dm.Set(reflect.New(f.ft.Elem())) - } - opts.Merge(asMessage(dm), asMessage(sm)) - } -} - -func mergeMessageSlice(dst, src pointer, f *coderFieldInfo, opts mergeOptions) { - for _, sp := range src.PointerSlice() { - dm := reflect.New(f.ft.Elem().Elem()) - if f.mi != nil { - f.mi.mergePointer(pointerOfValue(dm), sp, opts) - } else { - opts.Merge(asMessage(dm), asMessage(sp.AsValueOf(f.ft.Elem().Elem()))) - } - dst.AppendPointerSlice(pointerOfValue(dm)) - } -} - -func mergeBytes(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { - *dst.Bytes() = append(emptyBuf[:], *src.Bytes()...) -} - -func mergeBytesNoZero(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { - v := *src.Bytes() - if len(v) > 0 { - *dst.Bytes() = append(emptyBuf[:], v...) - } -} - -func mergeBytesSlice(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) { - ds := dst.BytesSlice() - for _, v := range *src.BytesSlice() { - *ds = append(*ds, append(emptyBuf[:], v...)) - } -} |