func MustWriteGoTypes(thisPackagePath string, typi types.Type) (s string, addPkgPathList []string) {
switch typ := typi.(type) {
case *types.Basic:
return typ.String(), nil
case *types.Named:
if typ.Obj().Pkg() == nil {
return typ.Obj().Name(), nil
}
typPkgPath := typ.Obj().Pkg().Path()
if thisPackagePath == typPkgPath {
return typ.Obj().Name(), nil
}
return path.Base(typPkgPath) + "." + typ.Obj().Name(), []string{typPkgPath}
case *types.Pointer:
s, addPkgPathList = MustWriteGoTypes(thisPackagePath, typ.Elem())
return "*" + s, addPkgPathList
case *types.Slice:
s, addPkgPathList = MustWriteGoTypes(thisPackagePath, typ.Elem())
return "[]" + s, addPkgPathList
case *types.Interface:
return typ.String(), nil
//s, addPkgPathList = MustWriteGoTypes(thisPackagePath, typ.Elem())
//return "[]" + s, addPkgPathList
default:
panic(fmt.Errorf("[MustWriteGoTypes] Not implement go/types [%T] [%s]",
typi, typi.String()))
}
return "", nil
}
func dump(path string, typ types.Type, st reflect.StructTag) IObj {
named, _ := typ.(*types.Named)
if named != nil {
typ = typ.Underlying()
}
if strings.Split(st.Get("json"), ",")[0] == "" {
if _, ok := typ.(*types.Struct); !ok {
if _, ok := typ.(*types.Pointer); !ok {
return nil
}
}
}
switch u := typ.(type) {
case *types.Struct:
return Struct(path, st, u, named)
case *types.Map:
return Map(path, st, u, named)
case *types.Slice:
return Slice(path, st, u)
case *types.Pointer:
return Pointer(path, st, u)
case *types.Basic:
return Basic(path, st, u, named)
default:
panic("unsupported")
}
}
// lockPath returns a typePath describing the location of a lock value
// contained in typ. If there is no contained lock, it returns nil.
func lockPath(tpkg *types.Package, typ types.Type) typePath {
if typ == nil {
return nil
}
// We're only interested in the case in which the underlying
// type is a struct. (Interfaces and pointers are safe to copy.)
styp, ok := typ.Underlying().(*types.Struct)
if !ok {
return nil
}
// We're looking for cases in which a reference to this type
// can be locked, but a value cannot. This differentiates
// embedded interfaces from embedded values.
if plock := types.NewMethodSet(types.NewPointer(typ)).Lookup(tpkg, "Lock"); plock != nil {
if lock := types.NewMethodSet(typ).Lookup(tpkg, "Lock"); lock == nil {
return []types.Type{typ}
}
}
nfields := styp.NumFields()
for i := 0; i < nfields; i++ {
ftyp := styp.Field(i).Type()
subpath := lockPath(tpkg, ftyp)
if subpath != nil {
return append(subpath, typ)
}
}
return nil
}
func (g *goGen) genWrite(valName, seqName string, T types.Type) {
if isErrorType(T) {
g.Printf("if %s == nil {\n", valName)
g.Printf(" %s.WriteString(\"\");\n", seqName)
g.Printf("} else {\n")
g.Printf(" %s.WriteString(%s.Error());\n", seqName, valName)
g.Printf("}\n")
return
}
switch T := T.(type) {
case *types.Pointer:
// TODO(crawshaw): test *int
// TODO(crawshaw): test **Generator
switch T := T.Elem().(type) {
case *types.Named:
obj := T.Obj()
if obj.Pkg() != g.pkg {
g.errorf("type %s not defined in package %s", T, g.pkg)
return
}
g.Printf("%s.WriteGoRef(%s)\n", seqName, valName)
default:
g.errorf("unsupported type %s", T)
}
case *types.Named:
switch u := T.Underlying().(type) {
case *types.Interface, *types.Pointer:
g.Printf("%s.WriteGoRef(%s)\n", seqName, valName)
default:
g.errorf("unsupported, direct named type %s: %s", T, u)
}
default:
g.Printf("%s.Write%s(%s);\n", seqName, seqType(T), valName)
}
}
func sizeof(t types.Type) uint {
switch t := t.(type) {
case *types.Tuple:
// TODO: usage of reflect most likely wrong!
// uint(reflect.TypeOf(t).Elem().Size())
panic("Tuples are unsupported")
case *types.Basic:
return sizeBasic(t.Kind())
case *types.Pointer:
return sizePtr()
case *types.Slice:
return sizeSlice(t)
case *types.Array:
return sizeArray(t)
case *types.Named:
if sse2, ok := sse2Info(t); ok {
return sse2.size
} else if info, ok := simdInfo(t); ok {
return info.size
} else {
panic(ice(fmt.Sprintf("unknown named type \"%v\"", t.String())))
}
}
panic(ice(fmt.Sprintf("unknown type: %v", t)))
}
func needWrapType(typ types.Type) bool {
switch typ := typ.(type) {
case *types.Basic:
return false
case *types.Struct:
return true
case *types.Named:
switch ut := typ.Underlying().(type) {
case *types.Basic:
return false
default:
return needWrapType(ut)
}
case *types.Array:
return true
case *types.Map:
return true
case *types.Slice:
return true
case *types.Interface:
wrap := true
if typ.Underlying() == universe.syms["error"].GoType().Underlying() {
wrap = false
}
return wrap
case *types.Signature:
return true
case *types.Pointer:
return needWrapType(typ.Elem())
}
return false
}
// MethodSet returns the method set of type T. It is thread-safe.
//
// If cache is nil, this function is equivalent to types.NewMethodSet(T).
// Utility functions can thus expose an optional *MethodSetCache
// parameter to clients that care about performance.
//
func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet {
if cache == nil {
return types.NewMethodSet(T)
}
cache.mu.Lock()
defer cache.mu.Unlock()
switch T := T.(type) {
case *types.Named:
return cache.lookupNamed(T).value
case *types.Pointer:
if N, ok := T.Elem().(*types.Named); ok {
return cache.lookupNamed(N).pointer
}
}
// all other types
// (The map uses pointer equivalence, not type identity.)
mset := cache.others[T]
if mset == nil {
mset = types.NewMethodSet(T)
if cache.others == nil {
cache.others = make(map[types.Type]*types.MethodSet)
}
cache.others[T] = mset
}
return mset
}
func (sym *symtab) addInterfaceType(pkg *types.Package, obj types.Object, t types.Type, kind symkind, id, n string) {
fn := sym.typename(t, nil)
typ := t.Underlying().(*types.Interface)
kind |= skInterface
// special handling of 'error'
if isErrorType(typ) {
return
}
sym.syms[fn] = &symbol{
gopkg: pkg,
goobj: obj,
gotyp: t,
kind: kind,
id: id,
goname: n,
cgoname: "cgo_type_" + id,
cpyname: "cpy_type_" + id,
pyfmt: "O&",
pybuf: "P",
pysig: "object",
c2py: "cgopy_cnv_c2py_" + id,
py2c: "cgopy_cnv_py2c_" + id,
pychk: fmt.Sprintf("cpy_func_%[1]s_check(%%s)", id),
}
}
func getStructType(t types.Type) string {
ts := t.String()
if ts != "time.Time" && ts != "bson.ObjectId" {
return "struct"
}
return ts
}
func (fr *frame) makeInterface(llv llvm.Value, vty types.Type, iface types.Type) *govalue {
if _, ok := vty.Underlying().(*types.Pointer); !ok {
ptr := fr.createTypeMalloc(vty)
fr.builder.CreateStore(llv, ptr)
llv = ptr
}
return fr.makeInterfaceFromPointer(llv, vty, iface)
}
func (x array) hash(t types.Type) int {
h := 0
tElt := t.Underlying().(*types.Array).Elem()
for _, xi := range x {
h += hash(tElt, xi)
}
return h
}
func typefmt(typ types.Type) string {
// Ugh.
typename := typ.String()
for _, p := range strings.Split(os.Getenv("GOPATH"), ":") {
typename = strings.Replace(typename, p+"/src/", "", -1)
}
return typename
}
// Reads the value from the given interface type, assuming that the
// interface holds a value of the correct type.
func (fr *frame) getInterfaceValue(v *govalue, ty types.Type) *govalue {
val := fr.builder.CreateExtractValue(v.value, 1, "")
if _, ok := ty.Underlying().(*types.Pointer); !ok {
typedval := fr.builder.CreateBitCast(val, llvm.PointerType(fr.types.ToLLVM(ty), 0), "")
val = fr.builder.CreateLoad(typedval, "")
}
return newValue(val, ty)
}
func signed(t types.Type) bool {
switch t := t.(type) {
case *types.Basic:
return signedBasic(t.Kind())
}
panic(ice(fmt.Sprintf("unknown type: %v", t)))
}
func catchReferencedTypes(et types.Type) {
id := LogTypeUse(et)
_, seen := catchReferencedTypesSeen[id]
if seen {
return
}
catchReferencedTypesSeen[id] = true
// check that we have all the required methods?
/*
for t := 1; t < NextTypeID; t++ { // make sure we do this in a consistent order
for _, k := range TypesEncountered.Keys() {
if TypesEncountered.At(k).(int) == t {
switch k.(type) {
case *types.Interface:
if types.Implements(et,k.(*types.Interface)) {
// TODO call missing method?
}
}
}
}
}
*/
//LogTypeUse(types.NewPointer(et))
switch et.(type) {
case *types.Named:
catchReferencedTypes(et.Underlying())
for m := 0; m < et.(*types.Named).NumMethods(); m++ {
catchReferencedTypes(et.(*types.Named).Method(m).Type())
}
case *types.Array:
catchReferencedTypes(et.(*types.Array).Elem())
//catchReferencedTypes(types.NewSlice(et.(*types.Array).Elem()))
case *types.Pointer:
catchReferencedTypes(et.(*types.Pointer).Elem())
case *types.Slice:
catchReferencedTypes(et.(*types.Slice).Elem())
case *types.Struct:
for f := 0; f < et.(*types.Struct).NumFields(); f++ {
if et.(*types.Struct).Field(f).IsField() {
catchReferencedTypes(et.(*types.Struct).Field(f).Type())
}
}
case *types.Map:
catchReferencedTypes(et.(*types.Map).Key())
catchReferencedTypes(et.(*types.Map).Elem())
case *types.Signature:
for i := 0; i < et.(*types.Signature).Params().Len(); i++ {
catchReferencedTypes(et.(*types.Signature).Params().At(i).Type())
}
for o := 0; o < et.(*types.Signature).Results().Len(); o++ {
catchReferencedTypes(et.(*types.Signature).Results().At(o).Type())
}
case *types.Chan:
catchReferencedTypes(et.(*types.Chan).Elem())
}
}
// If cond is true, reads the value from the given interface type, otherwise
// returns a nil value.
func (fr *frame) getInterfaceValueOrNull(cond llvm.Value, v *govalue, ty types.Type) *govalue {
val := fr.builder.CreateExtractValue(v.value, 1, "")
if _, ok := ty.Underlying().(*types.Pointer); ok {
val = fr.builder.CreateSelect(cond, val, llvm.ConstNull(val.Type()), "")
} else {
val = fr.loadOrNull(cond, val, ty).value
}
return newValue(val, ty)
}
func isInt(t types.Type) bool {
if t, ok := t.(*types.Basic); ok {
switch t.Kind() {
case types.Int, types.Int8, types.Int16, types.Int32, types.Int64:
return true
}
}
return false
}
func (fr *frame) makeInterfaceFromPointer(vptr llvm.Value, vty types.Type, iface types.Type) *govalue {
i8ptr := llvm.PointerType(llvm.Int8Type(), 0)
llv := fr.builder.CreateBitCast(vptr, i8ptr, "")
value := llvm.Undef(fr.types.ToLLVM(iface))
itab := fr.types.getItabPointer(vty, iface.Underlying().(*types.Interface))
value = fr.builder.CreateInsertValue(value, itab, 0, "")
value = fr.builder.CreateInsertValue(value, llv, 1, "")
return newValue(value, iface)
}
func (l langType) MakeInterface(register string, regTyp types.Type, v interface{}, errorInfo string) string {
ret := `new Interface(` + l.PogoComp().LogTypeUse(v.(ssa.Value).Type() /*NOT underlying()*/) + `,` +
l.IndirectValue(v, errorInfo) + ")"
if getHaxeClass(regTyp.String()) != "" {
ret = "Force.toHaxeParam(" + ret + ")" // as interfaces are not native to haxe, so need to convert
// TODO optimize when stable
}
return register + `=` + ret + ";"
}
func (x structure) hash(t types.Type) int {
tStruct := t.Underlying().(*types.Struct)
h := 0
for i, n := 0, tStruct.NumFields(); i < n; i++ {
if f := tStruct.Field(i); !f.Anonymous() {
h += hash(f.Type(), x[i])
}
}
return h
}
func (x array) eq(t types.Type, _y interface{}) bool {
y := _y.(array)
tElt := t.Underlying().(*types.Array).Elem()
for i, xi := range x {
if !equals(tElt, xi, y[i]) {
return false
}
}
return true
}
// usesBuiltinMap returns true if the built-in hash function and
// equivalence relation for type t are consistent with those of the
// interpreter's representation of type t. Such types are: all basic
// types (bool, numbers, string), pointers and channels.
//
// usesBuiltinMap returns false for types that require a custom map
// implementation: interfaces, arrays and structs.
//
// Panic ensues if t is an invalid map key type: function, map or slice.
func usesBuiltinMap(t types.Type) bool {
switch t := t.(type) {
case *types.Basic, *types.Chan, *types.Pointer:
return true
case *types.Named:
return usesBuiltinMap(t.Underlying())
case *types.Interface, *types.Array, *types.Struct:
return false
}
panic(fmt.Sprintf("invalid map key type: %T", t))
}
func makeImplementsType(T types.Type, fset *token.FileSet) serial.ImplementsType {
var pos token.Pos
if nt, ok := deref(T).(*types.Named); ok { // implementsResult.t may be non-named
pos = nt.Obj().Pos()
}
return serial.ImplementsType{
Name: T.String(),
Pos: fset.Position(pos).String(),
Kind: typeKind(T),
}
}
func cgoTypeName(typ types.Type) string {
switch typ := typ.(type) {
case *types.Basic:
kind := typ.Kind()
o, ok := typedescr[kind]
if ok {
return o.cgotype
}
}
return typ.String()
}
func (x structure) eq(t types.Type, _y interface{}) bool {
y := _y.(structure)
tStruct := t.Underlying().(*types.Struct)
for i, n := 0, tStruct.NumFields(); i < n; i++ {
if f := tStruct.Field(i); !f.Anonymous() {
if !equals(f.Type(), x[i], y[i]) {
return false
}
}
}
return true
}
func (fr *frame) interfaceTypeAssert(val *govalue, ty types.Type) *govalue {
if _, ok := ty.Underlying().(*types.Interface); ok {
return fr.changeInterface(val, ty, true)
} else {
valtytd := fr.types.ToRuntime(val.Type())
valtd := fr.getInterfaceTypeDescriptor(val)
tytd := fr.types.ToRuntime(ty)
fr.runtime.checkInterfaceType.call(fr, valtd, tytd, valtytd)
return fr.getInterfaceValue(val, ty)
}
}
// CanHaveDynamicTypes reports whether the type T can "hold" dynamic types,
// i.e. is an interface (incl. reflect.Type) or a reflect.Value.
//
func CanHaveDynamicTypes(T types.Type) bool {
switch T := T.(type) {
case *types.Named:
if obj := T.Obj(); obj.Name() == "Value" && obj.Pkg().Path() == "reflect" {
return true // reflect.Value
}
return CanHaveDynamicTypes(T.Underlying())
case *types.Interface:
return true
}
return false
}
// TypeChainString returns the full type chain as a string.
func TypeChainString(t types.Type) string {
out := fmt.Sprintf("%s", t)
for {
if t == t.Underlying() {
break
} else {
t = t.Underlying()
}
out += fmt.Sprintf(" -> %s", t)
}
return out
}
// javaType returns a string that can be used as a Java type.
func (g *javaGen) javaType(T types.Type) string {
switch T := T.(type) {
case *types.Basic:
switch T.Kind() {
case types.Bool:
return "boolean"
case types.Int:
return "long"
case types.Int8:
return "byte"
case types.Int16:
return "short"
case types.Int32:
return "int"
case types.Int64:
return "long"
case types.Uint8:
// TODO(crawshaw): Java bytes are signed, so this is
// questionable, but vital.
return "byte"
// TODO(crawshaw): case types.Uint, types.Uint16, types.Uint32, types.Uint64:
case types.Float32:
return "float"
case types.Float64:
return "double"
case types.String:
return "String"
default:
g.errorf("unsupported return type: %s", T)
return "TODO"
}
case *types.Slice:
elem := g.javaType(T.Elem())
return elem + "[]"
case *types.Pointer:
if _, ok := T.Elem().(*types.Named); ok {
return g.javaType(T.Elem())
}
panic(fmt.Sprintf("unsupporter pointer to type: %s", T))
case *types.Named:
n := T.Obj()
if n.Pkg() != g.pkg {
panic(fmt.Sprintf("type %s is in package %s, must be defined in package %s", n.Name(), n.Pkg().Name(), g.pkg.Name()))
}
// TODO(crawshaw): more checking here
return n.Name()
default:
g.errorf("unsupported javaType: %#+v, %s\n", T, T)
return "TODO"
}
}
func newVar(p *Package, typ types.Type, objname, name, doc string) *Var {
sym := p.syms.symtype(typ)
if sym == nil {
panic(fmt.Errorf("could not find symbol for type [%s]!", typ.String()))
}
return &Var{
pkg: p,
sym: sym,
id: p.Name() + "_" + objname,
doc: doc,
name: name,
}
}