func vdlToMojomTypeInternal(t *vdl.Type, outermostType bool, nullable bool, mp map[string]mojom_types.UserDefinedType) (mojomtype mojom_types.Type) {
switch t.Kind() {
case vdl.Bool, vdl.Float64, vdl.Float32, vdl.Int8, vdl.Int16, vdl.Int32, vdl.Int64, vdl.Byte, vdl.Uint16, vdl.Uint32, vdl.Uint64:
return &mojom_types.TypeSimpleType{
simpleTypeCode(t.Kind()),
}
case vdl.String:
return &mojom_types.TypeStringType{
stringType(nullable),
}
case vdl.Array:
elem := vdlToMojomTypeInternal(t.Elem(), false, false, mp)
return &mojom_types.TypeArrayType{
arrayType(elem, nullable, t.Len()),
}
case vdl.List:
elem := vdlToMojomTypeInternal(t.Elem(), false, false, mp)
return &mojom_types.TypeArrayType{
listType(elem, nullable),
}
case vdl.Map:
key := vdlToMojomTypeInternal(t.Key(), false, false, mp)
elem := vdlToMojomTypeInternal(t.Elem(), false, false, mp)
return &mojom_types.TypeMapType{
mapType(key, elem, nullable),
}
case vdl.Struct, vdl.Union, vdl.Enum:
udtKey := addUserDefinedType(t, mp)
ret := &mojom_types.TypeTypeReference{
mojom_types.TypeReference{
Nullable: nullable,
TypeKey: &udtKey,
},
}
if !outermostType {
// This is needed to match the output of the generator exactly, the outermost type
// is not given an identifier.
ret.Value.Identifier = ret.Value.TypeKey
}
return ret
case vdl.Optional:
return vdlToMojomTypeInternal(t.Elem(), false, true, mp)
default:
panic(fmt.Sprintf("conversion from VDL kind %v to mojom type not implemented", t.Kind()))
}
}
func (t target) fromZero(tt *vdl.Type) error {
if tt.IsBytes() {
return t.FromBytes(nil, tt)
}
switch tt.Kind() {
case vdl.Optional:
elemType := tt.Elem()
switch elemType.Kind() {
case vdl.Union, vdl.Struct: // Array? String? Bytes? List? Set?
// Note: for union, this zeros 16 bytes, but for others it does just 8.
zeroBytes(t.current.Bytes())
default:
panic(fmt.Sprintf("Vdl type %v cannot be optional", tt))
}
case vdl.Any:
panic("Any rep not yet determined")
case vdl.Bool:
return t.FromBool(false, tt)
case vdl.Byte, vdl.Uint16, vdl.Uint32, vdl.Uint64:
return t.FromUint(0, tt)
case vdl.Int8, vdl.Int16, vdl.Int32, vdl.Int64:
return t.FromInt(0, tt)
case vdl.Float32, vdl.Float64:
return t.FromFloat(0, tt)
case vdl.String:
return t.FromString("", tt)
case vdl.Enum:
return t.FromEnumLabel(tt.EnumLabel(0), tt)
case vdl.TypeObject:
return t.FromTypeObject(vdl.AnyType)
case vdl.List:
lt, err := t.StartList(tt, 0)
if err != nil {
return err
}
return t.FinishList(lt)
case vdl.Array:
lt, err := t.StartList(tt, tt.Len())
if err != nil {
return err
}
for i := 0; i < tt.Len(); i++ {
targ, err := lt.StartElem(i)
if err != nil {
return err
}
if err := targ.(target).fromZero(tt.Elem()); err != nil {
return err
}
if err := lt.FinishElem(targ); err != nil {
return err
}
}
return t.FinishList(lt)
case vdl.Map:
mt, err := t.StartMap(tt, 0)
if err != nil {
return err
}
return t.FinishMap(mt)
case vdl.Set:
st, err := t.StartSet(tt, 0)
if err != nil {
return err
}
return t.FinishSet(st)
case vdl.Struct:
st, err := t.StartFields(tt)
if err != nil {
return err
}
for i := 0; i < tt.NumField(); i++ {
fld := tt.Field(i)
kt, ft, err := st.StartField(fld.Name)
if err != nil {
return err
}
if err := ft.(target).fromZero(fld.Type); err != nil {
return err
}
if err := st.FinishField(kt, ft); err != nil {
return err
}
}
return t.FinishFields(st)
case vdl.Union:
st, err := t.StartFields(tt)
if err != nil {
return err
}
fld := tt.Field(0)
kt, ft, err := st.StartField(fld.Name)
if err != nil {
return err
}
if err := ft.(target).fromZero(fld.Type); err != nil {
return err
}
if err := st.FinishField(kt, ft); err != nil {
return err
}
return t.FinishFields(st)
default:
panic(fmt.Sprintf("unknown type %v", tt))
}
return nil
}