llgo/ssa: AfterInit/SliceLit/InterfaceData, unsafe.Slice; ssa/abi: Basic/Struct

internal/runtime/z_eface.go

@@ -0,0 +1,76 @@
+/*
+ * 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 Eface = eface
+
+// -----------------------------------------------------------------------------
+
+func MakeAnyIntptr(typ *Type, data uintptr) Eface {
+	return eface{
+		_type: typ, data: unsafe.Pointer(data),
+	}
+}
+
+func MakeAnyString(data string) Eface {
+	typ := basicTypes[abi.String]
+	return eface{
+		_type: typ, data: unsafe.Pointer(&data),
+	}
+}
+
+func MakeAny(typ *Type, data unsafe.Pointer) Eface {
+	return eface{
+		_type: typ, data: data,
+	}
+}
+
+func I2Int(v Eface, t *Type) uintptr {
+	if v._type == t {
+		return uintptr(v.data)
+	}
+	panic("I2Int: type mismatch")
+}
+
+func CheckI2Int(v Eface, t *Type) (uintptr, bool) {
+	if v._type == t {
+		return uintptr(v.data), true
+	}
+	return 0, false
+}
+
+func I2String(v Eface) string {
+	if v._type.Kind() == abi.String {
+		return *(*string)(v.data)
+	}
+	panic("I2String: type mismatch")
+}
+
+func CheckI2String(v Eface) (string, bool) {
+	if v._type.Kind() == abi.String {
+		return *(*string)(v.data), true
+	}
+	return "", false
+}
+
+// -----------------------------------------------------------------------------