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[#400] Support latest API in protoc plugin (#400)

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Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
fyrchik 2022-05-30 10:33:01 +03:00 committed by GitHub
parent 870c1ffc0a
commit 0b8e4e4753
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 27 deletions
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50
util/protogen/main.go
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@ -14,7 +14,8 @@ func main() {
//if !f.Generate {
// continue
//}
if strings.HasSuffix(string(f.GoImportPath), "/control") {
imp := string(f.GoImportPath)
if strings.HasSuffix(imp, "/tree") { // || strings.HasSuffix(imp, "/control") {
generateFile(gen, f)
}
}
@ -59,6 +60,12 @@ func emitMessage(g *protogen.GeneratedFile, msg *protogen.Message) {
g.P("// Structures with the same field values have the same binary size.")
g.P("func (x *", msg.GoIdent.GoName, ") StableSize() (size int) {")
if len(fs) != 0 {
for _, f := range fs {
if f.Desc.IsList() && marshalers[f.Desc.Kind()].RepeatedDouble {
g.P("var n int")
break
}
}
for _, f := range fs {
emitFieldSize(g, f)
}
@ -75,18 +82,16 @@ func emitMessage(g *protogen.GeneratedFile, msg *protogen.Message) {
g.P("// Otherwise, returns the buffer in which the data is written.")
g.P("//")
g.P("// Structures with the same field values have the same binary format.")
g.P("func (x *", msg.GoIdent.GoName, ") StableMarshal(buf []byte) ([]byte, error) {")
g.P("func (x *", msg.GoIdent.GoName, ") StableMarshal(buf []byte) []byte {")
if len(fs) != 0 {
g.P("if x == nil { return []byte{}, nil }")
g.P("if x == nil { return []byte{} }")
g.P("if buf == nil { buf = make([]byte, x.StableSize()) }")
g.P("var err error")
g.P("var offset, n int")
g.P("_, _, _ = err, offset, n")
g.P("var offset int")
for _, f := range fs {
emitFieldMarshal(g, f)
}
}
g.P("return buf, nil")
g.P("return buf")
g.P("}\n")
if strings.HasSuffix(msg.GoIdent.GoName, "Request") || strings.HasSuffix(msg.GoIdent.GoName, "Response") {
@ -107,7 +112,7 @@ func emitMessage(g *protogen.GeneratedFile, msg *protogen.Message) {
g.P("//")
g.P("// Structures with the same field values have the same signed data size.")
g.P("func (x *", msg.GoIdent.GoName, ") ReadSignedData(buf []byte) ([]byte, error) {")
g.P("return x.GetBody().StableMarshal(buf)")
g.P("return x.GetBody().StableMarshal(buf), nil")
g.P("}\n")
// Signature setters and getters.
@ -139,7 +144,12 @@ func emitFieldSize(g *protogen.GeneratedFile, f *protogen.Field) {
g.P("size += proto.NestedStructureSize(", f.Desc.Number(), ", ", name, "[i])")
g.P("}")
case f.Desc.IsList():
if m.RepeatedDouble {
g.P("n, _ = proto.Repeated", m.Prefix, "Size(", f.Desc.Number(), ", ", name, ")")
g.P("size += n")
} else {
g.P("size += proto.Repeated", m.Prefix, "Size(", f.Desc.Number(), ", ", name, ")")
}
default:
g.P("size += proto.", m.Prefix, "Size(", f.Desc.Number(), ", ", name, ")")
}
@ -168,22 +178,14 @@ func emitFieldMarshal(g *protogen.GeneratedFile, f *protogen.Field) {
switch {
case f.Desc.IsList() && f.Desc.Kind() == protoreflect.MessageKind:
g.P("for i := range ", name, "{")
g.P("n, err = proto.NestedStructureMarshal(", f.Desc.Number(), ", buf[offset:], ", name, "[i])")
g.P("if err != nil { return nil, err }")
g.P("offset += n")
g.P("offset += proto.NestedStructureMarshal(", f.Desc.Number(), ", buf[offset:], ", name, "[i])")
g.P("}")
case f.Desc.IsList():
g.P("offset += proto.Repeated", m.Prefix, "Marshal(", f.Desc.Number(), ", buf[offset:], ", name, ")")
default:
if m.CanFail {
g.P("n, err = proto.", prefix, "Marshal(", f.Desc.Number(), ", buf[offset:], ", name, ")")
g.P("if err != nil { return nil, err }")
g.P("offset += n")
} else {
g.P("offset += proto.", prefix, "Marshal(", f.Desc.Number(), ", buf[offset:], ", name, ")")
}
}
}
func castFieldName(f *protogen.Field) string {
name := "x." + f.GoName
@ -195,7 +197,7 @@ func castFieldName(f *protogen.Field) string {
type marshalerDesc struct {
Prefix string
CanFail bool
RepeatedDouble bool
}
// Unused kinds are commented.
@ -204,19 +206,19 @@ var marshalers = map[protoreflect.Kind]marshalerDesc{
protoreflect.EnumKind: {Prefix: "Enum"},
//protoreflect.Int32Kind: "",
//protoreflect.Sint32Kind: "",
protoreflect.Uint32Kind: {Prefix: "UInt32"},
protoreflect.Int64Kind: {Prefix: "Int64"},
protoreflect.Uint32Kind: {Prefix: "UInt32", RepeatedDouble: true},
protoreflect.Int64Kind: {Prefix: "Int64", RepeatedDouble: true},
//protoreflect.Sint64Kind: "",
protoreflect.Uint64Kind: {Prefix: "UInt64"},
protoreflect.Uint64Kind: {Prefix: "UInt64", RepeatedDouble: true},
//protoreflect.Sfixed32Kind: "",
protoreflect.Fixed32Kind: {Prefix: "Fixed32"},
protoreflect.Fixed32Kind: {Prefix: "Fixed32", RepeatedDouble: true},
//protoreflect.FloatKind: "",
//protoreflect.Sfixed64Kind: "",
protoreflect.Fixed64Kind: {Prefix: "Fixed64"},
protoreflect.Fixed64Kind: {Prefix: "Fixed64", RepeatedDouble: true},
protoreflect.DoubleKind: {Prefix: "Float64"},
protoreflect.StringKind: {Prefix: "String"},
protoreflect.BytesKind: {Prefix: "Bytes"},
protoreflect.MessageKind: {Prefix: "NestedStructure", CanFail: true},
protoreflect.MessageKind: {Prefix: "NestedStructure"},
//protoreflect.GroupKind: "",
}