1 files changed, 29 insertions, 143 deletions
diff --git a/vendor/google.golang.org/protobuf/proto/equal.go b/vendor/google.golang.org/protobuf/proto/equal.go
index 67948dd1..1a0be1b0 100644
--- a/vendor/google.golang.org/protobuf/proto/equal.go
+++ b/vendor/google.golang.org/protobuf/proto/equal.go
@@ -5,30 +5,39 @@
 package proto
 
 import (
-	"bytes"
-	"math"
 	"reflect"
 
-	"google.golang.org/protobuf/encoding/protowire"
 	"google.golang.org/protobuf/reflect/protoreflect"
 )
 
-// Equal reports whether two messages are equal.
-// If two messages marshal to the same bytes under deterministic serialization,
-// then Equal is guaranteed to report true.
+// Equal reports whether two messages are equal,
+// by recursively comparing the fields of the message.
 //
-// Two messages 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. If either of the top-level
-// messages are invalid, then Equal reports true only if both are invalid.
+//   - Bytes fields are equal if they contain identical bytes.
+//     Empty bytes (regardless of nil-ness) are considered equal.
 //
-// Scalar values are compared with the equivalent of the == operator in Go,
-// except bytes values which are compared using bytes.Equal and
-// floating point values which specially treat NaNs as equal.
-// Message values are compared by recursively calling Equal.
-// Lists are equal if each element value is also equal.
-// Maps are equal if they have the same set of keys, where the pair of values
-// for each key is also equal.
+//   - Floating-point fields are equal if they contain the same value.
+//     Unlike the == operator, a NaN is equal to another NaN.
+//
+//   - Other scalar fields are equal if they contain the same value.
+//
+//   - Message fields are equal if they have
+//     the same set of populated known and extension field values, and
+//     the same set of unknown fields values.
+//
+//   - Lists are equal if they are the same length and
+//     each corresponding element is equal.
+//
+//   - Maps are equal if they have the same set of keys and
+//     the corresponding value for each key is equal.
+//
+// An invalid message is not equal to a valid message.
+// An invalid message is only equal to another invalid message of the
+// same type. An invalid message often corresponds to a nil pointer
+// of the concrete message type. For example, (*pb.M)(nil) is not equal
+// to &pb.M{}.
+// If two valid messages marshal to the same bytes under deterministic
+// serialization, then Equal is guaranteed to report true.
 func Equal(x, y Message) bool {
 	if x == nil || y == nil {
 		return x == nil && y == nil
@@ -42,130 +51,7 @@ func Equal(x, y Message) bool {
 	if mx.IsValid() != my.IsValid() {
 		return false
 	}
-	return equalMessage(mx, my)
-}
-
-// equalMessage compares two messages.
-func equalMessage(mx, my protoreflect.Message) bool {
-	if mx.Descriptor() != my.Descriptor() {
-		return false
-	}
-
-	nx := 0
-	equal := true
-	mx.Range(func(fd protoreflect.FieldDescriptor, vx protoreflect.Value) bool {
-		nx++
-		vy := my.Get(fd)
-		equal = my.Has(fd) && equalField(fd, vx, vy)
-		return equal
-	})
-	if !equal {
-		return false
-	}
-	ny := 0
-	my.Range(func(fd protoreflect.FieldDescriptor, vx protoreflect.Value) bool {
-		ny++
-		return true
-	})
-	if nx != ny {
-		return false
-	}
-
-	return equalUnknown(mx.GetUnknown(), my.GetUnknown())
-}
-
-// equalField compares two fields.
-func equalField(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool {
-	switch {
-	case fd.IsList():
-		return equalList(fd, x.List(), y.List())
-	case fd.IsMap():
-		return equalMap(fd, x.Map(), y.Map())
-	default:
-		return equalValue(fd, x, y)
-	}
-}
-
-// equalMap compares two maps.
-func equalMap(fd protoreflect.FieldDescriptor, x, y protoreflect.Map) bool {
-	if x.Len() != y.Len() {
-		return false
-	}
-	equal := true
-	x.Range(func(k protoreflect.MapKey, vx protoreflect.Value) bool {
-		vy := y.Get(k)
-		equal = y.Has(k) && equalValue(fd.MapValue(), vx, vy)
-		return equal
-	})
-	return equal
-}
-
-// equalList compares two lists.
-func equalList(fd protoreflect.FieldDescriptor, x, y protoreflect.List) bool {
-	if x.Len() != y.Len() {
-		return false
-	}
-	for i := x.Len() - 1; i >= 0; i-- {
-		if !equalValue(fd, x.Get(i), y.Get(i)) {
-			return false
-		}
-	}
-	return true
-}
-
-// equalValue compares two singular values.
-func equalValue(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool {
-	switch fd.Kind() {
-	case protoreflect.BoolKind:
-		return x.Bool() == y.Bool()
-	case protoreflect.EnumKind:
-		return x.Enum() == y.Enum()
-	case protoreflect.Int32Kind, protoreflect.Sint32Kind,
-		protoreflect.Int64Kind, protoreflect.Sint64Kind,
-		protoreflect.Sfixed32Kind, protoreflect.Sfixed64Kind:
-		return x.Int() == y.Int()
-	case protoreflect.Uint32Kind, protoreflect.Uint64Kind,
-		protoreflect.Fixed32Kind, protoreflect.Fixed64Kind:
-		return x.Uint() == y.Uint()
-	case protoreflect.FloatKind, protoreflect.DoubleKind:
-		fx := x.Float()
-		fy := y.Float()
-		if math.IsNaN(fx) || math.IsNaN(fy) {
-			return math.IsNaN(fx) && math.IsNaN(fy)
-		}
-		return fx == fy
-	case protoreflect.StringKind:
-		return x.String() == y.String()
-	case protoreflect.BytesKind:
-		return bytes.Equal(x.Bytes(), y.Bytes())
-	case protoreflect.MessageKind, protoreflect.GroupKind:
-		return equalMessage(x.Message(), y.Message())
-	default:
-		return x.Interface() == y.Interface()
-	}
-}
-
-// equalUnknown compares unknown fields by direct comparison on the raw bytes
-// of each individual field number.
-func equalUnknown(x, y protoreflect.RawFields) bool {
-	if len(x) != len(y) {
-		return false
-	}
-	if bytes.Equal([]byte(x), []byte(y)) {
-		return true
-	}
-
-	mx := make(map[protoreflect.FieldNumber]protoreflect.RawFields)
-	my := make(map[protoreflect.FieldNumber]protoreflect.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)
+	vx := protoreflect.ValueOfMessage(mx)
+	vy := protoreflect.ValueOfMessage(my)
+	return vx.Equal(vy)
 }