60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
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 eface struct {
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rtype unsafe.Pointer
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data unsafe.Pointer
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}
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func unpackEFace(obj interface{}) *eface {
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return (*eface)(unsafe.Pointer(&obj))
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}
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func packEFace(rtype unsafe.Pointer, data unsafe.Pointer) interface{} {
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var i interface{}
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e := (*eface)(unsafe.Pointer(&i))
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e.rtype = rtype
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e.data = data
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return i
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}
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type UnsafeEFaceType struct {
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unsafeType
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}
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func newUnsafeEFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeEFaceType {
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return &UnsafeEFaceType{
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unsafeType: *newUnsafeType(cfg, type1),
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}
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}
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func (type2 *UnsafeEFaceType) IsNil(obj interface{}) bool {
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if obj == nil {
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return true
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}
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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 *UnsafeEFaceType) UnsafeIsNil(ptr unsafe.Pointer) bool {
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if ptr == nil {
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return true
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}
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return unpackEFace(*(*interface{})(ptr)).data == nil
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}
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func (type2 *UnsafeEFaceType) 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 *UnsafeEFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
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return *(*interface{})(ptr)
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}
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