func fillTreeWithMethod(tree *tree, key string, proto *descriptor.MethodDescriptorProto, loc string, locs map[string]*descriptor.SourceCodeInfo_Location) *method {
key = fmt.Sprintf("%s.%s", key, proto.GetName())
tree.methods[key] = &method{key: key, comment: getComment(loc, locs), MethodDescriptorProto: proto}
if input, ok := tree.messages[proto.GetInputType()]; ok {
tree.methods[key].input = input
}
if proto.GetClientStreaming() {
tree.methods[key].inputStream = true
}
if output, ok := tree.messages[proto.GetOutputType()]; ok {
tree.methods[key].output = output
}
if proto.GetServerStreaming() {
tree.methods[key].outputStream = true
}
if proto.Options != nil && protobuf.HasExtension(proto.Options, gateway.E_Http) {
ext, err := protobuf.GetExtension(proto.Options, gateway.E_Http)
if err == nil {
if opts, ok := ext.(*gateway.HttpRule); ok {
if endpoint := newEndpoint(opts); endpoint != nil {
tree.methods[key].endpoints = append(tree.methods[key].endpoints, endpoint)
}
for _, opts := range opts.AdditionalBindings {
if endpoint := newEndpoint(opts); endpoint != nil {
tree.methods[key].endpoints = append(tree.methods[key].endpoints, endpoint)
}
}
}
}
}
return tree.methods[key]
}
func TestClearAllExtensions(t *testing.T) {
// unregistered extension
desc := &proto.ExtensionDesc{
ExtendedType: (*pb.MyMessage)(nil),
ExtensionType: (*bool)(nil),
Field: 101010100,
Name: "emptyextension",
Tag: "varint,0,opt",
}
m := &pb.MyMessage{}
if proto.HasExtension(m, desc) {
t.Errorf("proto.HasExtension(%s): got true, want false", proto.MarshalTextString(m))
}
if err := proto.SetExtension(m, desc, proto.Bool(true)); err != nil {
t.Errorf("proto.SetExtension(m, desc, true): got error %q, want nil", err)
}
if !proto.HasExtension(m, desc) {
t.Errorf("proto.HasExtension(%s): got false, want true", proto.MarshalTextString(m))
}
proto.ClearAllExtensions(m)
if proto.HasExtension(m, desc) {
t.Errorf("proto.HasExtension(%s): got true, want false", proto.MarshalTextString(m))
}
}
func convertFile(file *descriptor.FileDescriptorProto) ([]*plugin.CodeGeneratorResponse_File, error) {
name := path.Base(file.GetName())
pkg, ok := globalPkg.relativelyLookupPackage(file.GetPackage())
if !ok {
return nil, fmt.Errorf("no such package found: %s", file.GetPackage())
}
response := []*plugin.CodeGeneratorResponse_File{}
for _, msg := range file.GetMessageType() {
options := msg.GetOptions()
if options == nil {
continue
}
if !proto.HasExtension(options, E_TableName) {
continue
}
optionValue, err := proto.GetExtension(options, E_TableName)
if err != nil {
return nil, err
}
tableName := *optionValue.(*string)
if len(tableName) == 0 {
return nil, fmt.Errorf("table name of %s cannot be empty", msg.GetName())
}
glog.V(2).Info("Generating schema for a message type ", msg.GetName())
schema, err := convertMessageType(pkg, msg)
if err != nil {
glog.Errorf("Failed to convert %s: %v", name, err)
return nil, err
}
jsonSchema, err := json.Marshal(schema)
if err != nil {
glog.Error("Failed to encode schema", err)
return nil, err
}
resFile := &plugin.CodeGeneratorResponse_File{
Name: proto.String(fmt.Sprintf("%s/%s.schema", strings.Replace(file.GetPackage(), ".", "/", -1), tableName)),
Content: proto.String(string(jsonSchema)),
}
response = append(response, resFile)
}
return response, nil
}
func extractAPIOptions(meth *descriptor.MethodDescriptorProto) (*options.HttpRule, error) {
if meth.Options == nil {
return nil, nil
}
if !proto.HasExtension(meth.Options, options.E_Http) {
return nil, nil
}
ext, err := proto.GetExtension(meth.Options, options.E_Http)
if err != nil {
return nil, err
}
opts, ok := ext.(*options.HttpRule)
if !ok {
return nil, fmt.Errorf("extension is %T; want an HttpRule", ext)
}
return opts, nil
}
func TestExtensionsRoundTrip(t *testing.T) {
msg := &pb.MyMessage{}
ext1 := &pb.Ext{
Data: proto.String("hi"),
}
ext2 := &pb.Ext{
Data: proto.String("there"),
}
exists := proto.HasExtension(msg, pb.E_Ext_More)
if exists {
t.Error("Extension More present unexpectedly")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext1); err != nil {
t.Error(err)
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext2); err != nil {
t.Error(err)
}
e, err := proto.GetExtension(msg, pb.E_Ext_More)
if err != nil {
t.Error(err)
}
x, ok := e.(*pb.Ext)
if !ok {
t.Errorf("e has type %T, expected testdata.Ext", e)
} else if *x.Data != "there" {
t.Errorf("SetExtension failed to overwrite, got %+v, not 'there'", x)
}
proto.ClearExtension(msg, pb.E_Ext_More)
if _, err = proto.GetExtension(msg, pb.E_Ext_More); err != proto.ErrMissingExtension {
t.Errorf("got %v, expected ErrMissingExtension", e)
}
if _, err := proto.GetExtension(msg, pb.E_X215); err == nil {
t.Error("expected bad extension error, got nil")
}
if err := proto.SetExtension(msg, pb.E_X215, 12); err == nil {
t.Error("expected extension err")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, 12); err == nil {
t.Error("expected some sort of type mismatch error, got nil")
}
}
// marshalObject writes a struct to the Writer.
func (m *Marshaler) marshalObject(out *errWriter, v proto.Message, indent, typeURL string) error {
s := reflect.ValueOf(v).Elem()
// Handle well-known types.
if wkt, ok := v.(wkt); ok {
switch wkt.XXX_WellKnownType() {
case "DoubleValue", "FloatValue", "Int64Value", "UInt64Value",
"Int32Value", "UInt32Value", "BoolValue", "StringValue", "BytesValue":
// "Wrappers use the same representation in JSON
// as the wrapped primitive type, ..."
sprop := proto.GetProperties(s.Type())
return m.marshalValue(out, sprop.Prop[0], s.Field(0), indent)
case "Any":
// Any is a bit more involved.
return m.marshalAny(out, v, indent)
case "Duration":
// "Generated output always contains 3, 6, or 9 fractional digits,
// depending on required precision."
s, ns := s.Field(0).Int(), s.Field(1).Int()
d := time.Duration(s)*time.Second + time.Duration(ns)*time.Nanosecond
x := fmt.Sprintf("%.9f", d.Seconds())
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
out.write(`"`)
out.write(x)
out.write(`s"`)
return out.err
case "Struct":
// Let marshalValue handle the `fields` map.
// TODO: pass the correct Properties if needed.
return m.marshalValue(out, &proto.Properties{}, s.Field(0), indent)
case "Timestamp":
// "RFC 3339, where generated output will always be Z-normalized
// and uses 3, 6 or 9 fractional digits."
s, ns := s.Field(0).Int(), s.Field(1).Int()
t := time.Unix(s, ns).UTC()
// time.RFC3339Nano isn't exactly right (we need to get 3/6/9 fractional digits).
x := t.Format("2006-01-02T15:04:05.000000000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
out.write(`"`)
out.write(x)
out.write(`Z"`)
return out.err
case "Value":
// Value has a single oneof.
kind := s.Field(0)
if kind.IsNil() {
// "absence of any variant indicates an error"
return errors.New("nil Value")
}
// oneof -> *T -> T -> T.F
x := kind.Elem().Elem().Field(0)
// TODO: pass the correct Properties if needed.
return m.marshalValue(out, &proto.Properties{}, x, indent)
}
}
out.write("{")
if m.Indent != "" {
out.write("\n")
}
firstField := true
if typeURL != "" {
if err := m.marshalTypeURL(out, indent, typeURL); err != nil {
return err
}
firstField = false
}
for i := 0; i < s.NumField(); i++ {
value := s.Field(i)
valueField := s.Type().Field(i)
if strings.HasPrefix(valueField.Name, "XXX_") {
continue
}
// IsNil will panic on most value kinds.
switch value.Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
if value.IsNil() {
continue
}
}
if !m.EmitDefaults {
switch value.Kind() {
case reflect.Bool:
if !value.Bool() {
continue
}
case reflect.Int32, reflect.Int64:
if value.Int() == 0 {
continue
}
case reflect.Uint32, reflect.Uint64:
if value.Uint() == 0 {
continue
}
case reflect.Float32, reflect.Float64:
if value.Float() == 0 {
continue
}
case reflect.String:
if value.Len() == 0 {
continue
}
}
}
// Oneof fields need special handling.
if valueField.Tag.Get("protobuf_oneof") != "" {
// value is an interface containing &T{real_value}.
sv := value.Elem().Elem() // interface -> *T -> T
value = sv.Field(0)
valueField = sv.Type().Field(0)
}
prop := jsonProperties(valueField, m.OrigName)
if !firstField {
m.writeSep(out)
}
if err := m.marshalField(out, prop, value, indent); err != nil {
return err
}
firstField = false
}
// Handle proto2 extensions.
if ep, ok := v.(proto.Message); ok {
extensions := proto.RegisteredExtensions(v)
// Sort extensions for stable output.
ids := make([]int32, 0, len(extensions))
for id, desc := range extensions {
if !proto.HasExtension(ep, desc) {
continue
}
ids = append(ids, id)
}
sort.Sort(int32Slice(ids))
for _, id := range ids {
desc := extensions[id]
if desc == nil {
// unknown extension
continue
}
ext, extErr := proto.GetExtension(ep, desc)
if extErr != nil {
return extErr
}
value := reflect.ValueOf(ext)
var prop proto.Properties
prop.Parse(desc.Tag)
prop.JSONName = fmt.Sprintf("[%s]", desc.Name)
if !firstField {
m.writeSep(out)
}
if err := m.marshalField(out, &prop, value, indent); err != nil {
return err
}
firstField = false
}
}
if m.Indent != "" {
out.write("\n")
out.write(indent)
}
out.write("}")
return out.err
}