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86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
4 years ago
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package reflect2
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import (
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"reflect"
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"unsafe"
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)
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type unsafeType struct {
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safeType
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rtype unsafe.Pointer
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ptrRType unsafe.Pointer
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}
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func newUnsafeType(cfg *frozenConfig, type1 reflect.Type) *unsafeType {
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return &unsafeType{
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safeType: safeType{
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Type: type1,
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cfg: cfg,
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},
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rtype: unpackEFace(type1).data,
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ptrRType: unpackEFace(reflect.PtrTo(type1)).data,
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}
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}
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func (type2 *unsafeType) Set(obj interface{}, val interface{}) {
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objEFace := unpackEFace(obj)
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assertType("Type.Set argument 1", type2.ptrRType, objEFace.rtype)
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valEFace := unpackEFace(val)
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assertType("Type.Set argument 2", type2.ptrRType, valEFace.rtype)
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type2.UnsafeSet(objEFace.data, valEFace.data)
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}
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func (type2 *unsafeType) UnsafeSet(ptr unsafe.Pointer, val unsafe.Pointer) {
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typedmemmove(type2.rtype, ptr, val)
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}
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func (type2 *unsafeType) IsNil(obj interface{}) bool {
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objEFace := unpackEFace(obj)
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assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype)
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return type2.UnsafeIsNil(objEFace.data)
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}
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func (type2 *unsafeType) UnsafeIsNil(ptr unsafe.Pointer) bool {
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return ptr == nil
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}
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func (type2 *unsafeType) UnsafeNew() unsafe.Pointer {
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return unsafe_New(type2.rtype)
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}
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func (type2 *unsafeType) New() interface{} {
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return packEFace(type2.ptrRType, type2.UnsafeNew())
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}
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func (type2 *unsafeType) PackEFace(ptr unsafe.Pointer) interface{} {
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return packEFace(type2.ptrRType, ptr)
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}
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func (type2 *unsafeType) RType() uintptr {
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return uintptr(type2.rtype)
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}
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func (type2 *unsafeType) Indirect(obj interface{}) interface{} {
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objEFace := unpackEFace(obj)
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assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
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return type2.UnsafeIndirect(objEFace.data)
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}
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func (type2 *unsafeType) UnsafeIndirect(obj unsafe.Pointer) interface{} {
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return packEFace(type2.rtype, obj)
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}
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func (type2 *unsafeType) LikePtr() bool {
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return false
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}
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func assertType(where string, expectRType unsafe.Pointer, actualRType unsafe.Pointer) {
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if expectRType != actualRType {
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expectType := reflect.TypeOf(0)
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(*iface)(unsafe.Pointer(&expectType)).data = expectRType
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actualType := reflect.TypeOf(0)
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(*iface)(unsafe.Pointer(&actualType)).data = actualRType
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panic(where + ": expect " + expectType.String() + ", actual " + actualType.String())
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}
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}
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