10 examples of 'golang when to use pointers' in Go

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438func (ctx *Context) wrapDuktapePointer(
439 ptr unsafe.Pointer,
440 t reflect.Type,
441) func(in []reflect.Value) []reflect.Value {
442 return func(in []reflect.Value) []reflect.Value {
443 ctx.PushGlobalObject()
444 ctx.GetPropString(-1, "CandyJS")
445 obj := ctx.NormalizeIndex(-1)
446 ctx.PushString("_call")
447 ctx.PushPointer(ptr)
448 ctx.pushValues(in)
449 ctx.CallProp(obj, 2)
450
451 return ctx.getCallResult(t)
452 }
453}
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117func memclrHasPointers(ptr unsafe.Pointer, n uintptr)
148func (s Nested) SetPointers(v Pointer_List) error {
149 return s.Struct.SetPtr(1, v.List.ToPtr())
150}
180func sanitizePtrType(t *reflect.Type) (success bool) {
181 x := *t
182 if x.Kind() == reflect.Ptr {
183 *t = x.Elem()
184
185 if (*t).Kind() == reflect.Ptr {
186 return false
187 }
188 }
189 return true
190}
121func (pm *pointerMap) addPrimitivePointer(ptr uintptr) {
122 for _, have := range pm.primitivePointers {
123 if ptr == have {
124 return
125 }
126 }
127 pm.primitivePointers = append(pm.primitivePointers, ptr)
128}
1436func (x *EmbeddedSt4) GetPointersStructField() *PointersStruct {
1437 if x != nil {
1438 return x.PointersStructField
1439 }
1440 return nil
1441}
740func (g *genDeepCopy) doPointer(t *types.Type, sw *generator.SnippetWriter) {
741 sw.Do("if *in == nil { *out = nil } else {\n", t)
742 if hasDeepCopyMethod(t.Elem) {
743 sw.Do("*out = new($.Elem|raw$)\n", t)
744 sw.Do("**out = (*in).DeepCopy()\n", nil)
745 } else if t.Elem.IsAssignable() {
746 sw.Do("*out = new($.Elem|raw$)\n", t)
747 sw.Do("**out = **in", nil)
748 } else {
749 switch t.Elem.Kind {
750 case types.Map, types.Slice:
751 sw.Do("*out = new($.Elem|raw$)\n", t)
752 sw.Do("if **in != nil {\n", t)
753 sw.Do("in, out := *in, *out\n", nil)
754 g.generateFor(t.Elem, sw)
755 sw.Do("}\n", nil)
756 default:
757 sw.Do("*out = new($.Elem|raw$)\n", t)
758 sw.Do("(*in).DeepCopyInto(*out)\n", nil)
759 }
760 }
761 sw.Do("}", t)
762}
14func resolvePointers(obj interface{}) interface{} {
15 if obj == nil {
16 return obj
17 }
18 obj_val := reflect.ValueOf(obj)
19 for obj_val.Kind() == reflect.Ptr {
20 obj_val = obj_val.Elem()
21 }
22 if obj_val.CanInterface() {
23 return obj_val.Interface()
24 } else {
25 return nil
26 }
27}
186func ensurePointer(T types.Type) types.Type {
187 if _, ok := T.(*types.Named); ok && !IsInterface(T) {
188 return types.NewPointer(T)
189 }
190
191 return T
192}
143func (s Nested) HasPointers() bool {
144 p, err := s.Struct.Ptr(1)
145 return p.IsValid() || err != nil
146}

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