From 404aeae4545d2426c089a5f8d5e82dae56f5212b Mon Sep 17 00:00:00 2001 From: Rutger Broekhoff Date: Fri, 29 Dec 2023 21:31:53 +0100 Subject: Make Nix builds work --- .../json-iterator/go/reflect_struct_encoder.go | 211 +++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 vendor/github.com/json-iterator/go/reflect_struct_encoder.go (limited to 'vendor/github.com/json-iterator/go/reflect_struct_encoder.go') diff --git a/vendor/github.com/json-iterator/go/reflect_struct_encoder.go b/vendor/github.com/json-iterator/go/reflect_struct_encoder.go new file mode 100644 index 0000000..152e3ef --- /dev/null +++ b/vendor/github.com/json-iterator/go/reflect_struct_encoder.go @@ -0,0 +1,211 @@ +package jsoniter + +import ( + "fmt" + "github.com/modern-go/reflect2" + "io" + "reflect" + "unsafe" +) + +func encoderOfStruct(ctx *ctx, typ reflect2.Type) ValEncoder { + type bindingTo struct { + binding *Binding + toName string + ignored bool + } + orderedBindings := []*bindingTo{} + structDescriptor := describeStruct(ctx, typ) + for _, binding := range structDescriptor.Fields { + for _, toName := range binding.ToNames { + new := &bindingTo{ + binding: binding, + toName: toName, + } + for _, old := range orderedBindings { + if old.toName != toName { + continue + } + old.ignored, new.ignored = resolveConflictBinding(ctx.frozenConfig, old.binding, new.binding) + } + orderedBindings = append(orderedBindings, new) + } + } + if len(orderedBindings) == 0 { + return &emptyStructEncoder{} + } + finalOrderedFields := []structFieldTo{} + for _, bindingTo := range orderedBindings { + if !bindingTo.ignored { + finalOrderedFields = append(finalOrderedFields, structFieldTo{ + encoder: bindingTo.binding.Encoder.(*structFieldEncoder), + toName: bindingTo.toName, + }) + } + } + return &structEncoder{typ, finalOrderedFields} +} + +func createCheckIsEmpty(ctx *ctx, typ reflect2.Type) checkIsEmpty { + encoder := createEncoderOfNative(ctx, typ) + if encoder != nil { + return encoder + } + kind := typ.Kind() + switch kind { + case reflect.Interface: + return &dynamicEncoder{typ} + case reflect.Struct: + return &structEncoder{typ: typ} + case reflect.Array: + return &arrayEncoder{} + case reflect.Slice: + return &sliceEncoder{} + case reflect.Map: + return encoderOfMap(ctx, typ) + case reflect.Ptr: + return &OptionalEncoder{} + default: + return &lazyErrorEncoder{err: fmt.Errorf("unsupported type: %v", typ)} + } +} + +func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) { + newTagged := new.Field.Tag().Get(cfg.getTagKey()) != "" + oldTagged := old.Field.Tag().Get(cfg.getTagKey()) != "" + if newTagged { + if oldTagged { + if len(old.levels) > len(new.levels) { + return true, false + } else if len(new.levels) > len(old.levels) { + return false, true + } else { + return true, true + } + } else { + return true, false + } + } else { + if oldTagged { + return true, false + } + if len(old.levels) > len(new.levels) { + return true, false + } else if len(new.levels) > len(old.levels) { + return false, true + } else { + return true, true + } + } +} + +type structFieldEncoder struct { + field reflect2.StructField + fieldEncoder ValEncoder + omitempty bool +} + +func (encoder *structFieldEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + fieldPtr := encoder.field.UnsafeGet(ptr) + encoder.fieldEncoder.Encode(fieldPtr, stream) + if stream.Error != nil && stream.Error != io.EOF { + stream.Error = fmt.Errorf("%s: %s", encoder.field.Name(), stream.Error.Error()) + } +} + +func (encoder *structFieldEncoder) IsEmpty(ptr unsafe.Pointer) bool { + fieldPtr := encoder.field.UnsafeGet(ptr) + return encoder.fieldEncoder.IsEmpty(fieldPtr) +} + +func (encoder *structFieldEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool { + isEmbeddedPtrNil, converted := encoder.fieldEncoder.(IsEmbeddedPtrNil) + if !converted { + return false + } + fieldPtr := encoder.field.UnsafeGet(ptr) + return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr) +} + +type IsEmbeddedPtrNil interface { + IsEmbeddedPtrNil(ptr unsafe.Pointer) bool +} + +type structEncoder struct { + typ reflect2.Type + fields []structFieldTo +} + +type structFieldTo struct { + encoder *structFieldEncoder + toName string +} + +func (encoder *structEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + stream.WriteObjectStart() + isNotFirst := false + for _, field := range encoder.fields { + if field.encoder.omitempty && field.encoder.IsEmpty(ptr) { + continue + } + if field.encoder.IsEmbeddedPtrNil(ptr) { + continue + } + if isNotFirst { + stream.WriteMore() + } + stream.WriteObjectField(field.toName) + field.encoder.Encode(ptr, stream) + isNotFirst = true + } + stream.WriteObjectEnd() + if stream.Error != nil && stream.Error != io.EOF { + stream.Error = fmt.Errorf("%v.%s", encoder.typ, stream.Error.Error()) + } +} + +func (encoder *structEncoder) IsEmpty(ptr unsafe.Pointer) bool { + return false +} + +type emptyStructEncoder struct { +} + +func (encoder *emptyStructEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + stream.WriteEmptyObject() +} + +func (encoder *emptyStructEncoder) IsEmpty(ptr unsafe.Pointer) bool { + return false +} + +type stringModeNumberEncoder struct { + elemEncoder ValEncoder +} + +func (encoder *stringModeNumberEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + stream.writeByte('"') + encoder.elemEncoder.Encode(ptr, stream) + stream.writeByte('"') +} + +func (encoder *stringModeNumberEncoder) IsEmpty(ptr unsafe.Pointer) bool { + return encoder.elemEncoder.IsEmpty(ptr) +} + +type stringModeStringEncoder struct { + elemEncoder ValEncoder + cfg *frozenConfig +} + +func (encoder *stringModeStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { + tempStream := encoder.cfg.BorrowStream(nil) + tempStream.Attachment = stream.Attachment + defer encoder.cfg.ReturnStream(tempStream) + encoder.elemEncoder.Encode(ptr, tempStream) + stream.WriteString(string(tempStream.Buffer())) +} + +func (encoder *stringModeStringEncoder) IsEmpty(ptr unsafe.Pointer) bool { + return encoder.elemEncoder.IsEmpty(ptr) +} -- cgit v1.2.3