Avoid panic in protobuf-go v1.36.0 (#51)

buf.gen.yaml

@@ -6,6 +6,6 @@ managed:
     except:
       - buf.build/bufbuild/protovalidate
 plugins:
-  - plugin: buf.build/protocolbuffers/go:v1.34.0
+  - plugin: buf.build/protocolbuffers/go:v1.36.0
     out: internal/gen/proto
     opt: paths=source_relative

decode.go

@@ -562,7 +562,7 @@ func (u *unmarshaler) findField(key string, msgDesc protoreflect.MessageDescript
 
 // Unmarshal a field, handling isList/isMap.
 func (u *unmarshaler) unmarshalField(node *yaml.Node, field protoreflect.FieldDescriptor, message proto.Message) {
-	if oneofDesc := field.ContainingOneof(); oneofDesc != nil {
+	if oneofDesc := field.ContainingOneof(); oneofDesc != nil && !oneofDesc.IsSynthetic() {
 		// Check if another field in the oneof is already set.
 		if whichOne := message.ProtoReflect().WhichOneof(oneofDesc); whichOne != nil {
 			u.addErrorf(node, "field %v is already set for oneof %v", whichOne.Name(), oneofDesc.Name())

go.mod

@@ -2,14 +2,12 @@ module buf.build/go/protoyaml
 
 go 1.21.1
 
-toolchain go1.23.2
-
 require (
-	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.35.2-20241127180247-a33202765966.1
+	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.0-20241127180247-a33202765966.1
 	github.com/bufbuild/protovalidate-go v0.8.0
 	github.com/google/go-cmp v0.6.0
 	github.com/stretchr/testify v1.10.0
-	google.golang.org/protobuf v1.35.2
+	google.golang.org/protobuf v1.36.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 

go.sum

@@ -1,5 +1,5 @@
-buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.35.2-20241127180247-a33202765966.1 h1:jLd96rDDNJ+zIJxvV/L855VEtrjR0G4aePVDlCpf6kw=
-buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.35.2-20241127180247-a33202765966.1/go.mod h1:mnHCFccv4HwuIAOHNGdiIc5ZYbBCvbTWZcodLN5wITI=
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.0-20241127180247-a33202765966.1 h1:ntAj16eF7AtUyzOOAFk5gvbAO52QmUKPKk7GmsIEORo=
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.0-20241127180247-a33202765966.1/go.mod h1:AxRT+qTj5PJCz2nyQzsR/qxAcveW5USRhJTt/edTO5w=
 cel.dev/expr v0.18.0 h1:CJ6drgk+Hf96lkLikr4rFf19WrU0BOWEihyZnI2TAzo=
 cel.dev/expr v0.18.0/go.mod h1:MrpN08Q+lEBs+bGYdLxxHkZoUSsCp0nSKTs0nTymJgw=
 github.com/antlr4-go/antlr/v4 v4.13.0 h1:lxCg3LAv+EUK6t1i0y1V6/SLeUi0eKEKdhQAlS8TVTI=
@@ -39,8 +39,8 @@ google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7 h1:
 google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7/go.mod h1:OCdP9MfskevB/rbYvHTsXTtKC+3bHWajPdoKgjcYkfo=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1 h1:pPJltXNxVzT4pK9yD8vR9X75DaWYYmLGMsEvBfFQZzQ=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1/go.mod h1:UqMtugtsSgubUsoxbuAoiCXvqvErP7Gf0so0mK9tHxU=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.0 h1:mjIs9gYtt56AzC4ZaffQuh88TZurBGhIJMBZGSxNerQ=
+google.golang.org/protobuf v1.36.0/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=