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75 lines
2.1 KiB
75 lines
2.1 KiB
7 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 UnsafeStructField struct {
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reflect.StructField
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structType *UnsafeStructType
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rtype unsafe.Pointer
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ptrRType unsafe.Pointer
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}
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func newUnsafeStructField(structType *UnsafeStructType, structField reflect.StructField) *UnsafeStructField {
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return &UnsafeStructField{
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StructField: structField,
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rtype: unpackEFace(structField.Type).data,
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ptrRType: unpackEFace(reflect.PtrTo(structField.Type)).data,
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structType: structType,
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}
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}
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func (field *UnsafeStructField) Offset() uintptr {
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return field.StructField.Offset
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}
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func (field *UnsafeStructField) Name() string {
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return field.StructField.Name
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}
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func (field *UnsafeStructField) PkgPath() string {
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return field.StructField.PkgPath
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}
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func (field *UnsafeStructField) Type() Type {
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return field.structType.cfg.Type2(field.StructField.Type)
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}
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func (field *UnsafeStructField) Tag() reflect.StructTag {
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return field.StructField.Tag
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}
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func (field *UnsafeStructField) Index() []int {
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return field.StructField.Index
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}
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func (field *UnsafeStructField) Anonymous() bool {
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return field.StructField.Anonymous
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}
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func (field *UnsafeStructField) Set(obj interface{}, value interface{}) {
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objEFace := unpackEFace(obj)
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assertType("StructField.SetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
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valueEFace := unpackEFace(value)
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assertType("StructField.SetIndex argument 2", field.ptrRType, valueEFace.rtype)
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field.UnsafeSet(objEFace.data, valueEFace.data)
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}
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func (field *UnsafeStructField) UnsafeSet(obj unsafe.Pointer, value unsafe.Pointer) {
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fieldPtr := add(obj, field.StructField.Offset, "same as non-reflect &v.field")
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typedmemmove(field.rtype, fieldPtr, value)
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}
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func (field *UnsafeStructField) Get(obj interface{}) interface{} {
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objEFace := unpackEFace(obj)
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assertType("StructField.GetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
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value := field.UnsafeGet(objEFace.data)
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return packEFace(field.ptrRType, value)
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}
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func (field *UnsafeStructField) UnsafeGet(obj unsafe.Pointer) unsafe.Pointer {
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return add(obj, field.StructField.Offset, "same as non-reflect &v.field")
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}
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