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z_iface.go
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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 InterfaceType = abi.InterfaceType
var (
TyAny = &InterfaceType{}
)
// -----------------------------------------------------------------------------
type Interface = iface
func MakeAnyInt(typ *Type, data uintptr) Interface {
tab := &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}}
return Interface{
tab: tab, data: unsafe.Pointer(data),
}
}
func MakeAnyString(data string) Interface {
typ := basicTypes[abi.String]
tab := &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}}
return Interface{
tab: tab, data: unsafe.Pointer(&data),
}
}
func MakeAny(typ *Type, data unsafe.Pointer) Interface {
tab := &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}}
return Interface{
tab: tab, data: data,
}
}
func MakeInterface(inter *InterfaceType, typ *Type, data unsafe.Pointer) Interface {
tab := &itab{inter: inter, _type: typ, hash: 0, fun: [1]uintptr{0}}
return Interface{
tab: tab, data: data,
}
}
func I2Int(v Interface, t *Type) uintptr {
if v.tab._type == t {
return uintptr(v.data)
}
panic("I2Int: type mismatch")
}
func CheckI2Int(v Interface, t *Type) (uintptr, bool) {
if v.tab._type == t {
return uintptr(v.data), true
}
return 0, false
}
func I2String(v Interface, t *Type) string {
if v.tab._type == t {
return *(*string)(v.data)
}
panic("I2String: type mismatch")
}
func CheckI2String(v Interface, t *Type) (string, bool) {
if v.tab._type == t {
return *(*string)(v.data), true
}
return "", false
}
// -----------------------------------------------------------------------------