diff options
Diffstat (limited to 'vendor/google.golang.org/protobuf/reflect/protoreflect/value_equal.go')
-rw-r--r-- | vendor/google.golang.org/protobuf/reflect/protoreflect/value_equal.go | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/vendor/google.golang.org/protobuf/reflect/protoreflect/value_equal.go b/vendor/google.golang.org/protobuf/reflect/protoreflect/value_equal.go deleted file mode 100644 index 654599d44..000000000 --- a/vendor/google.golang.org/protobuf/reflect/protoreflect/value_equal.go +++ /dev/null @@ -1,168 +0,0 @@ -// Copyright 2022 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 protoreflect - -import ( - "bytes" - "fmt" - "math" - "reflect" - - "google.golang.org/protobuf/encoding/protowire" -) - -// Equal reports whether v1 and v2 are recursively equal. -// -// - Values of different types are always unequal. -// -// - Bytes values are equal if they contain identical bytes. -// Empty bytes (regardless of nil-ness) are considered equal. -// -// - Floating point values are equal if they contain the same value. -// Unlike the == operator, a NaN is equal to another NaN. -// -// - Enums are equal if they contain the same number. -// Since [Value] does not contain an enum descriptor, -// enum values do not consider the type of the enum. -// -// - Other scalar values are equal if they contain the same value. -// -// - [Message] values are equal if they belong to the same message descriptor, -// have the same set of populated known and extension field values, -// and the same set of unknown fields values. -// -// - [List] values are equal if they are the same length and -// each corresponding element is equal. -// -// - [Map] values are equal if they have the same set of keys and -// the corresponding value for each key is equal. -func (v1 Value) Equal(v2 Value) bool { - return equalValue(v1, v2) -} - -func equalValue(x, y Value) bool { - eqType := x.typ == y.typ - switch x.typ { - case nilType: - return eqType - case boolType: - return eqType && x.Bool() == y.Bool() - case int32Type, int64Type: - return eqType && x.Int() == y.Int() - case uint32Type, uint64Type: - return eqType && x.Uint() == y.Uint() - case float32Type, float64Type: - return eqType && equalFloat(x.Float(), y.Float()) - case stringType: - return eqType && x.String() == y.String() - case bytesType: - return eqType && bytes.Equal(x.Bytes(), y.Bytes()) - case enumType: - return eqType && x.Enum() == y.Enum() - default: - switch x := x.Interface().(type) { - case Message: - y, ok := y.Interface().(Message) - return ok && equalMessage(x, y) - case List: - y, ok := y.Interface().(List) - return ok && equalList(x, y) - case Map: - y, ok := y.Interface().(Map) - return ok && equalMap(x, y) - default: - panic(fmt.Sprintf("unknown type: %T", x)) - } - } -} - -// equalFloat compares two floats, where NaNs are treated as equal. -func equalFloat(x, y float64) bool { - if math.IsNaN(x) || math.IsNaN(y) { - return math.IsNaN(x) && math.IsNaN(y) - } - return x == y -} - -// equalMessage compares two messages. -func equalMessage(mx, my Message) bool { - if mx.Descriptor() != my.Descriptor() { - return false - } - - nx := 0 - equal := true - mx.Range(func(fd FieldDescriptor, vx Value) bool { - nx++ - vy := my.Get(fd) - equal = my.Has(fd) && equalValue(vx, vy) - return equal - }) - if !equal { - return false - } - ny := 0 - my.Range(func(fd FieldDescriptor, vx Value) bool { - ny++ - return true - }) - if nx != ny { - return false - } - - return equalUnknown(mx.GetUnknown(), my.GetUnknown()) -} - -// equalList compares two lists. -func equalList(x, y List) bool { - if x.Len() != y.Len() { - return false - } - for i := x.Len() - 1; i >= 0; i-- { - if !equalValue(x.Get(i), y.Get(i)) { - return false - } - } - return true -} - -// equalMap compares two maps. -func equalMap(x, y Map) bool { - if x.Len() != y.Len() { - return false - } - equal := true - x.Range(func(k MapKey, vx Value) bool { - vy := y.Get(k) - equal = y.Has(k) && equalValue(vx, vy) - return equal - }) - return equal -} - -// equalUnknown compares unknown fields by direct comparison on the raw bytes -// of each individual field number. -func equalUnknown(x, y RawFields) bool { - if len(x) != len(y) { - return false - } - if bytes.Equal([]byte(x), []byte(y)) { - return true - } - - mx := make(map[FieldNumber]RawFields) - my := make(map[FieldNumber]RawFields) - for len(x) > 0 { - fnum, _, n := protowire.ConsumeField(x) - mx[fnum] = append(mx[fnum], x[:n]...) - x = x[n:] - } - for len(y) > 0 { - fnum, _, n := protowire.ConsumeField(y) - my[fnum] = append(my[fnum], y[:n]...) - y = y[n:] - } - return reflect.DeepEqual(mx, my) -} |