llgo/internal/runtime

internal/runtime/iface.go

@@ -0,0 +1,5 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime

internal/runtime/runtime2.go

@@ -0,0 +1,37 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"unsafe"
+)
+
+type iface struct {
+	tab  *itab
+	data unsafe.Pointer
+}
+
+/*
+type eface struct {
+	_type *_type
+	data  unsafe.Pointer
+}
+
+func efaceOf(ep *any) *eface {
+	return (*eface)(unsafe.Pointer(ep))
+}
+*/
+
+// layout of Itab known to compilers
+// allocated in non-garbage-collected memory
+// Needs to be in sync with
+// ../cmd/compile/internal/reflectdata/reflect.go:/^func.WriteTabs.
+type itab struct {
+	inter *interfacetype
+	_type *_type
+	hash  uint32 // copy of _type.hash. Used for type switches.
+	_     [4]byte
+	fun   [1]uintptr // variable sized. fun[0]==0 means _type does not implement inter.
+}

internal/runtime/type.go

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+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Runtime type representation.
+
+package runtime
+
+import (
+	"github.com/goplus/llgo/internal/abi"
+)
+
+// type nameOff = abi.NameOff
+// type typeOff = abi.TypeOff
+
+type _type = abi.Type
+
+type interfacetype = abi.InterfaceType

internal/runtime/z_iface.go

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+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package runtime
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/internal/abi"
+)
+
+type Interface = iface
+
+type InterfaceType = abi.InterfaceType
+
+type Type = abi.Type
+
+var (
+	TyAny = &InterfaceType{}
+)
+
+func MakeAny(typ *Type, data unsafe.Pointer) Interface {
+	return Interface{
+		tab:  &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}},
+		data: data,
+	}
+}