forked from github/multus-cni
ac21a96804
gomodule is still in progress to migrate for now, hence multus team decide to keep vendor directory to support build without gomodule.
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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