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https://github.com/golang/go
synced 2024-11-12 09:30:25 -07:00
reflect.PtrValue.SetSub() to set pointers
R=rsc OCL=19101 CL=19101
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parent
2f4d35ffb9
commit
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@ -91,6 +91,17 @@ func main() {
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var s string;
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var t reflect.Type;
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{
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var ip *int32;
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var i int32 = 1234;
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vip := reflect.NewValue(&ip);
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vi := reflect.NewValue(i);
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vip.(reflect.PtrValue).Sub().(reflect.PtrValue).SetSub(vi);
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if *ip != 1234 {
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panicln("SetSub failure", *ip);
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}
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}
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// Types
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typedump("missing", "$missing$");
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typedump("int", "int");
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@ -39,6 +39,7 @@ export type Empty interface {} // TODO(r): Delete when no longer needed?
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export type Value interface {
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Kind() int;
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Type() Type;
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Addr() Addr;
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Interface() Empty;
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}
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@ -58,6 +59,10 @@ func (c *Common) Type() Type {
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return c.typ
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}
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func (c *Common) Addr() Addr {
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return c.addr
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}
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func (c *Common) Interface() Empty {
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return sys.unreflect(*AddrToPtrAddr(c.addr), c.typ.String());
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}
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@ -493,6 +498,7 @@ export type PtrValue interface {
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Type() Type;
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Sub() Value;
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Get() Addr;
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SetSub(Value);
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}
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type PtrValueStruct struct {
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@ -507,6 +513,10 @@ func (v *PtrValueStruct) Sub() Value {
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return NewValueAddr(v.typ.(PtrType).Sub(), v.Get());
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}
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func (v *PtrValueStruct) SetSub(subv Value) {
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*AddrToPtrAddr(v.addr) = subv.Addr();
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}
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func PtrCreator(typ Type, addr Addr) Value {
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return &PtrValueStruct{ Common{PtrKind, typ, addr} };
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}
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