func (p *test) Generate(imports generator.PluginImports, file *generator.FileDescriptor) bool {
used := false
randPkg := imports.NewImport("math/rand")
timePkg := imports.NewImport("time")
testingPkg := imports.NewImport("testing")
for _, message := range file.Messages() {
if !gogoproto.IsUnion(file.FileDescriptorProto, message.DescriptorProto) ||
!gogoproto.HasTestGen(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
used = true
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func Test`, ccTypeName, `Union(t *`, testingPkg.Use(), `.T) {`)
p.In()
p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(`, timePkg.Use(), `.Now().UnixNano()))`)
p.P(`p := NewPopulated`, ccTypeName, `(popr, true)`)
p.P(`v := p.GetValue()`)
p.P(`msg := &`, ccTypeName, `{}`)
p.P(`if !msg.SetValue(v) {`)
p.In()
p.P(`t.Fatalf("Union: Could not set Value")`)
p.Out()
p.P(`}`)
p.P(`if !p.Equal(msg) {`)
p.In()
p.P(`t.Fatalf("%#v !Union Equal %#v", msg, p)`)
p.Out()
p.P(`}`)
p.Out()
p.P(`}`)
}
return used
}
func (p *plugin) Generate(file *generator.FileDescriptor) {
p.atleastOne = false
p.PluginImports = generator.NewPluginImports(p.Generator)
p.varGen = NewVarGen()
p.localName = generator.FileName(file)
protoPkg := p.NewImport("code.google.com/p/gogoprotobuf/proto")
for _, message := range file.Messages() {
if !gogoproto.HasPopulate(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
p.atleastOne = true
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func NewPopulated`, ccTypeName, `(r randy`, p.localName, `, easy bool) *`, ccTypeName, ` {`)
p.In()
p.P(`this := &`, ccTypeName, `{}`)
if gogoproto.IsUnion(message.File(), message.DescriptorProto) && len(message.Field) > 0 {
loopLevels := make([]int, len(message.Field))
maxLoopLevel := 0
for i, field := range message.Field {
loopLevels[i] = p.loops(field, message)
if loopLevels[i] > maxLoopLevel {
maxLoopLevel = loopLevels[i]
}
}
ran := 0
for i := range loopLevels {
ran += int(math.Pow10(maxLoopLevel - loopLevels[i]))
}
p.P(`fieldNum := r.Intn(`, fmt.Sprintf("%d", ran), `)`)
p.P(`switch fieldNum {`)
k := 0
for i, field := range message.Field {
is := []string{}
ran := int(math.Pow10(maxLoopLevel - loopLevels[i]))
for j := 0; j < ran; j++ {
is = append(is, fmt.Sprintf("%d", j+k))
}
k += ran
p.P(`case `, strings.Join(is, ","), `:`)
p.In()
p.GenerateField(message, field)
p.Out()
}
p.P(`}`)
} else {
var maxFieldNumber int32
for _, field := range message.Field {
if field.IsRequired() || (!gogoproto.IsNullable(field) && !field.IsRepeated()) {
p.GenerateField(message, field)
} else {
p.P(`if r.Intn(10) != 0 {`)
p.In()
p.GenerateField(message, field)
p.Out()
p.P(`}`)
}
if field.GetNumber() > maxFieldNumber {
maxFieldNumber = field.GetNumber()
}
}
if message.DescriptorProto.HasExtension() {
p.P(`if !easy && r.Intn(10) != 0 {`)
p.In()
p.P(`l := r.Intn(5)`)
p.P(`for i := 0; i < l; i++ {`)
p.In()
if len(message.DescriptorProto.GetExtensionRange()) > 1 {
p.P(`eIndex := r.Intn(`, strconv.Itoa(len(message.DescriptorProto.GetExtensionRange())), `)`)
p.P(`fieldNumber := 0`)
p.P(`switch eIndex {`)
for i, e := range message.DescriptorProto.GetExtensionRange() {
p.P(`case `, strconv.Itoa(i), `:`)
p.In()
p.P(`fieldNumber = r.Intn(`, strconv.Itoa(int(e.GetEnd()-e.GetStart())), `) + `, strconv.Itoa(int(e.GetStart())))
p.Out()
if e.GetEnd() > maxFieldNumber {
maxFieldNumber = e.GetEnd()
}
}
p.P(`}`)
} else {
e := message.DescriptorProto.GetExtensionRange()[0]
p.P(`fieldNumber := r.Intn(`, strconv.Itoa(int(e.GetEnd()-e.GetStart())), `) + `, strconv.Itoa(int(e.GetStart())))
if e.GetEnd() > maxFieldNumber {
maxFieldNumber = e.GetEnd()
}
}
p.P(`wire := r.Intn(4)`)
p.P(`if wire == 3 { wire = 5 }`)
p.P(`data := randField`, p.localName, `(nil, r, fieldNumber, wire)`)
p.P(protoPkg.Use(), `.SetRawExtension(this, int32(fieldNumber), data)`)
p.Out()
p.P(`}`)
p.Out()
p.P(`}`)
}
if maxFieldNumber < (1 << 10) {
p.P(`if !easy && r.Intn(10) != 0 {`)
p.In()
p.P(`this.XXX_unrecognized = randUnrecognized`, p.localName, `(r, `, strconv.Itoa(int(maxFieldNumber+1)), `)`)
p.Out()
p.P(`}`)
}
}
p.P(`return this`)
p.Out()
p.P(`}`)
p.P(``)
}
if !p.atleastOne {
return
}
p.P(`type randy`, p.localName, ` interface {`)
p.In()
p.P(`Float32() float32`)
p.P(`Float64() float64`)
p.P(`Int63() int64`)
p.P(`Int31() int32`)
p.P(`Uint32() uint32`)
p.P(`Intn(n int) int`)
p.Out()
p.P(`}`)
surrogateRange := surrogateMax - surrogateMin
maxRand := maxRune - surrogateRange
p.P(`func randUTF8Rune`, p.localName, `(r randy`, p.localName, `) rune {`)
p.In()
p.P(`res := rune(r.Uint32() % `, fmt.Sprintf("%d", maxRand), `)`)
p.P(`if `, fmt.Sprintf("%d", surrogateMin), ` <= res {`)
p.In()
p.P(`res += `, fmt.Sprintf("%d", surrogateRange))
p.Out()
p.P(`}`)
p.P(`return res`)
p.Out()
p.P(`}`)
p.P(`func randString`, p.localName, `(r randy`, p.localName, `) string {`)
p.In()
p.P(p.varGen.Next(), ` := r.Intn(100)`)
p.P(`tmps := make([]rune, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(`tmps[i] = randUTF8Rune`, p.localName, `(r)`)
p.Out()
p.P(`}`)
p.P(`return string(tmps)`)
p.Out()
p.P(`}`)
p.P(`func randUnrecognized`, p.localName, `(r randy`, p.localName, `, maxFieldNumber int) (data []byte) {`)
p.In()
p.P(`l := r.Intn(5)`)
p.P(`for i := 0; i < l; i++ {`)
p.In()
p.P(`wire := r.Intn(4)`)
p.P(`if wire == 3 { wire = 5 }`)
p.P(`fieldNumber := maxFieldNumber + r.Intn(100)`)
p.P(`data = randField`, p.localName, `(data, r, fieldNumber, wire)`)
p.Out()
p.P(`}`)
p.P(`return data`)
p.Out()
p.P(`}`)
p.P(`func randField`, p.localName, `(data []byte, r randy`, p.localName, `, fieldNumber int, wire int) []byte {`)
p.In()
p.P(`key := uint32(fieldNumber)<<3 | uint32(wire)`)
p.P(`switch wire {`)
p.P(`case 0:`)
p.In()
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(key))`)
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(r.Int63()))`)
p.Out()
p.P(`case 1:`)
p.In()
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(key))`)
p.P(`data = append(data, byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)))`)
p.Out()
p.P(`case 2:`)
p.In()
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(key))`)
p.P(`ll := r.Intn(100)`)
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(ll))`)
p.P(`for j := 0; j < ll; j++ {`)
p.In()
p.P(`data = append(data, byte(r.Intn(256)))`)
p.Out()
p.P(`}`)
p.Out()
p.P(`default:`)
p.In()
p.P(`data = encodeVarintPopulate`, p.localName, `(data, uint64(key))`)
p.P(`data = append(data, byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)))`)
p.Out()
p.P(`}`)
p.P(`return data`)
p.Out()
p.P(`}`)
p.P(`func encodeVarintPopulate`, p.localName, `(data []byte, v uint64) []byte {`)
p.In()
p.P(`for v >= 1<<7 {`)
p.In()
p.P(`data = append(data, uint8(uint64(v)&0x7f|0x80))`)
p.P(`v >>= 7`)
p.Out()
p.P(`}`)
p.P(`data = append(data, uint8(v))`)
p.P(`return data`)
p.Out()
p.P(`}`)
}
func (p *union) Generate(file *generator.FileDescriptor) {
p.PluginImports = generator.NewPluginImports(p.Generator)
for _, message := range file.Messages() {
if !gogoproto.IsUnion(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.HasExtension() {
panic("onlyone does not currently support extensions")
}
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func (this *`, ccTypeName, `) GetValue() interface{} {`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
if fieldname == "Value" {
panic("cannot have a onlyone message " + ccTypeName + " with a field named Value")
}
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`return this.`, fieldname)
p.Out()
p.P(`}`)
}
p.P(`return nil`)
p.Out()
p.P(`}`)
p.P(``)
p.P(`func (this *`, ccTypeName, `) SetValue(value interface{}) bool {`)
p.In()
p.P(`switch vt := value.(type) {`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
goTyp, _ := p.GoType(message, field)
p.P(`case `, goTyp, `:`)
p.In()
p.P(`this.`, fieldname, ` = vt`)
p.Out()
}
p.P(`default:`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
if field.IsMessage() {
goTyp, _ := p.GoType(message, field)
obj := p.ObjectNamed(field.GetTypeName()).(*generator.Descriptor)
if gogoproto.IsUnion(obj.File(), obj.DescriptorProto) {
p.P(`this.`, fieldname, ` = new(`, generator.GoTypeToName(goTyp), `)`)
p.P(`if set := this.`, fieldname, `.SetValue(value); set {`)
p.In()
p.P(`return true`)
p.Out()
p.P(`}`)
p.P(`this.`, fieldname, ` = nil`)
}
}
}
p.P(`return false`)
p.Out()
p.P(`}`)
p.P(`return true`)
p.Out()
p.P(`}`)
}
}