64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
package reflect2
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import (
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"unsafe"
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"reflect"
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)
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type iface struct {
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itab *itab
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data unsafe.Pointer
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}
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type itab struct {
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ignore unsafe.Pointer
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rtype unsafe.Pointer
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}
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func IFaceToEFace(ptr unsafe.Pointer) interface{} {
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iface := (*iface)(ptr)
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if iface.itab == nil {
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return nil
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}
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return packEFace(iface.itab.rtype, iface.data)
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}
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type UnsafeIFaceType struct {
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unsafeType
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}
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func newUnsafeIFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeIFaceType {
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return &UnsafeIFaceType{
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unsafeType: *newUnsafeType(cfg, type1),
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}
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}
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func (type2 *UnsafeIFaceType) 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 *UnsafeIFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
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return IFaceToEFace(ptr)
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}
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func (type2 *UnsafeIFaceType) 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 *UnsafeIFaceType) 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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iface := (*iface)(ptr)
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if iface.itab == nil {
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return true
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}
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return false
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} |