1 package reflect2
2
3 import (
4 "reflect"
5 "unsafe"
6 )
7
8 type UnsafeStructField struct {
9 reflect.StructField
10 structType *UnsafeStructType
11 rtype unsafe.Pointer
12 ptrRType unsafe.Pointer
13 }
14
15 func newUnsafeStructField(structType *UnsafeStructType, structField reflect.StructField) *UnsafeStructField {
16 return &UnsafeStructField{
17 StructField: structField,
18 rtype: unpackEFace(structField.Type).data,
19 ptrRType: unpackEFace(reflect.PtrTo(structField.Type)).data,
20 structType: structType,
21 }
22 }
23
24 func (field *UnsafeStructField) Offset() uintptr {
25 return field.StructField.Offset
26 }
27
28 func (field *UnsafeStructField) Name() string {
29 return field.StructField.Name
30 }
31
32 func (field *UnsafeStructField) PkgPath() string {
33 return field.StructField.PkgPath
34 }
35
36 func (field *UnsafeStructField) Type() Type {
37 return field.structType.cfg.Type2(field.StructField.Type)
38 }
39
40 func (field *UnsafeStructField) Tag() reflect.StructTag {
41 return field.StructField.Tag
42 }
43
44 func (field *UnsafeStructField) Index() []int {
45 return field.StructField.Index
46 }
47
48 func (field *UnsafeStructField) Anonymous() bool {
49 return field.StructField.Anonymous
50 }
51
52 func (field *UnsafeStructField) Set(obj interface{}, value interface{}) {
53 objEFace := unpackEFace(obj)
54 assertType("StructField.SetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
55 valueEFace := unpackEFace(value)
56 assertType("StructField.SetIndex argument 2", field.ptrRType, valueEFace.rtype)
57 field.UnsafeSet(objEFace.data, valueEFace.data)
58 }
59
60 func (field *UnsafeStructField) UnsafeSet(obj unsafe.Pointer, value unsafe.Pointer) {
61 fieldPtr := add(obj, field.StructField.Offset, "same as non-reflect &v.field")
62 typedmemmove(field.rtype, fieldPtr, value)
63 }
64
65 func (field *UnsafeStructField) Get(obj interface{}) interface{} {
66 objEFace := unpackEFace(obj)
67 assertType("StructField.GetIndex argument 1", field.structType.ptrRType, objEFace.rtype)
68 value := field.UnsafeGet(objEFace.data)
69 return packEFace(field.ptrRType, value)
70 }
71
72 func (field *UnsafeStructField) UnsafeGet(obj unsafe.Pointer) unsafe.Pointer {
73 return add(obj, field.StructField.Offset, "same as non-reflect &v.field")
74 }
75
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