Add easyjson marshallers (#3484)

It should improve performance when working with JSON.

frameworks/Go/fasthttp/fasthttp-postgresql.dockerfile

@@ -11,6 +11,7 @@ RUN rm -rf ./pkg/*
 RUN go get -d -u github.com/jackc/pgx
 RUN go get -d -u github.com/valyala/fasthttp/...
 RUN go get -u github.com/valyala/quicktemplate/qtc
+RUN go get -u github.com/mailru/easyjson/...
 
 RUN rm -f ./server-postgresql
 RUN go generate templates

frameworks/Go/fasthttp/fasthttp.dockerfile

@@ -11,6 +11,7 @@ RUN rm -rf ./pkg/*
 RUN go get -d -u github.com/go-sql-driver/mysql
 RUN go get -d -u github.com/valyala/fasthttp/...
 RUN go get -u github.com/valyala/quicktemplate/qtc
+RUN go get -u github.com/mailru/easyjson/...
 
 RUN rm -f ./server-mysql
 RUN go generate templates

frameworks/Go/fasthttp/source_code

@@ -1,6 +1,7 @@
 ./fasthttp/server.go
 ./fasthttp/src/
 ./fasthttp/src/common/common.go
+./fasthttp/src/common/common_easyjson.go
 ./fasthttp/src/server-mysql/server.go
 ./fasthttp/src/server-postgresql/server.go
 ./fasthttp/src/templates/

frameworks/Go/fasthttp/src/common/common_easyjson.go

@@ -0,0 +1,173 @@
+// Code generated by easyjson for marshaling/unmarshaling. DO NOT EDIT.
+
+package common
+
+import (
+	json "encoding/json"
+	easyjson "github.com/mailru/easyjson"
+	jlexer "github.com/mailru/easyjson/jlexer"
+	jwriter "github.com/mailru/easyjson/jwriter"
+)
+
+// suppress unused package warning
+var (
+	_ *json.RawMessage
+	_ *jlexer.Lexer
+	_ *jwriter.Writer
+	_ easyjson.Marshaler
+)
+
+func easyjsonC803d3e7DecodeCommon(in *jlexer.Lexer, out *World) {
+	isTopLevel := in.IsStart()
+	if in.IsNull() {
+		if isTopLevel {
+			in.Consumed()
+		}
+		in.Skip()
+		return
+	}
+	in.Delim('{')
+	for !in.IsDelim('}') {
+		key := in.UnsafeString()
+		in.WantColon()
+		if in.IsNull() {
+			in.Skip()
+			in.WantComma()
+			continue
+		}
+		switch key {
+		case "id":
+			out.Id = int32(in.Int32())
+		case "randomNumber":
+			out.RandomNumber = int32(in.Int32())
+		default:
+			in.SkipRecursive()
+		}
+		in.WantComma()
+	}
+	in.Delim('}')
+	if isTopLevel {
+		in.Consumed()
+	}
+}
+func easyjsonC803d3e7EncodeCommon(out *jwriter.Writer, in World) {
+	out.RawByte('{')
+	first := true
+	_ = first
+	{
+		const prefix string = ",\"id\":"
+		if first {
+			first = false
+			out.RawString(prefix[1:])
+		} else {
+			out.RawString(prefix)
+		}
+		out.Int32(int32(in.Id))
+	}
+	{
+		const prefix string = ",\"randomNumber\":"
+		if first {
+			first = false
+			out.RawString(prefix[1:])
+		} else {
+			out.RawString(prefix)
+		}
+		out.Int32(int32(in.RandomNumber))
+	}
+	out.RawByte('}')
+}
+
+// MarshalJSON supports json.Marshaler interface
+func (v World) MarshalJSON() ([]byte, error) {
+	w := jwriter.Writer{}
+	easyjsonC803d3e7EncodeCommon(&w, v)
+	return w.Buffer.BuildBytes(), w.Error
+}
+
+// MarshalEasyJSON supports easyjson.Marshaler interface
+func (v World) MarshalEasyJSON(w *jwriter.Writer) {
+	easyjsonC803d3e7EncodeCommon(w, v)
+}
+
+// UnmarshalJSON supports json.Unmarshaler interface
+func (v *World) UnmarshalJSON(data []byte) error {
+	r := jlexer.Lexer{Data: data}
+	easyjsonC803d3e7DecodeCommon(&r, v)
+	return r.Error()
+}
+
+// UnmarshalEasyJSON supports easyjson.Unmarshaler interface
+func (v *World) UnmarshalEasyJSON(l *jlexer.Lexer) {
+	easyjsonC803d3e7DecodeCommon(l, v)
+}
+func easyjsonC803d3e7DecodeCommon1(in *jlexer.Lexer, out *JSONResponse) {
+	isTopLevel := in.IsStart()
+	if in.IsNull() {
+		if isTopLevel {
+			in.Consumed()
+		}
+		in.Skip()
+		return
+	}
+	in.Delim('{')
+	for !in.IsDelim('}') {
+		key := in.UnsafeString()
+		in.WantColon()
+		if in.IsNull() {
+			in.Skip()
+			in.WantComma()
+			continue
+		}
+		switch key {
+		case "message":
+			out.Message = string(in.String())
+		default:
+			in.SkipRecursive()
+		}
+		in.WantComma()
+	}
+	in.Delim('}')
+	if isTopLevel {
+		in.Consumed()
+	}
+}
+func easyjsonC803d3e7EncodeCommon1(out *jwriter.Writer, in JSONResponse) {
+	out.RawByte('{')
+	first := true
+	_ = first
+	{
+		const prefix string = ",\"message\":"
+		if first {
+			first = false
+			out.RawString(prefix[1:])
+		} else {
+			out.RawString(prefix)
+		}
+		out.String(string(in.Message))
+	}
+	out.RawByte('}')
+}
+
+// MarshalJSON supports json.Marshaler interface
+func (v JSONResponse) MarshalJSON() ([]byte, error) {
+	w := jwriter.Writer{}
+	easyjsonC803d3e7EncodeCommon1(&w, v)
+	return w.Buffer.BuildBytes(), w.Error
+}
+
+// MarshalEasyJSON supports easyjson.Marshaler interface
+func (v JSONResponse) MarshalEasyJSON(w *jwriter.Writer) {
+	easyjsonC803d3e7EncodeCommon1(w, v)
+}
+
+// UnmarshalJSON supports json.Unmarshaler interface
+func (v *JSONResponse) UnmarshalJSON(data []byte) error {
+	r := jlexer.Lexer{Data: data}
+	easyjsonC803d3e7DecodeCommon1(&r, v)
+	return r.Error()
+}
+
+// UnmarshalEasyJSON supports easyjson.Unmarshaler interface
+func (v *JSONResponse) UnmarshalEasyJSON(l *jlexer.Lexer) {
+	easyjsonC803d3e7DecodeCommon1(l, v)
+}