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reflect: Fix invalid sharing in valueInterface. 

From-SVN: r193614
This commit is contained in:
Ian Lance Taylor 2012-11-19 05:34:08 +00:00
parent 822a258a98
commit a3ce4803ea
1 changed files with 4 additions and 4 deletions
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8
libgo/go/reflect/value.go
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@ -342,7 +342,7 @@ func (v Value) Call(in []Value) []Value {
}
// CallSlice calls the variadic function v with the input arguments in,
// assigning the slice in[len(in)-1] to v's final variadic argument.
// assigning the slice in[len(in)-1] to v's final variadic argument.
// For example, if len(in) == 3, v.Call(in) represents the Go call v(in[0], in[1], in[2]...).
// Call panics if v's Kind is not Func or if v is not variadic.
// It returns the output results as Values.
@ -905,7 +905,7 @@ func valueInterface(v Value, safe bool) interface{} {
if safe && v.flag&flagRO != 0 {
// Do not allow access to unexported values via Interface,
// because they might be pointers that should not be
// because they might be pointers that should not be
// writable or methods or function that should not be callable.
panic("reflect.Value.Interface: cannot return value obtained from unexported field or method")
}
@ -928,7 +928,7 @@ func valueInterface(v Value, safe bool) interface{} {
eface.typ = v.typ.runtimeType()
eface.word = v.iword()
if v.flag&flagIndir != 0 && v.typ.size > ptrSize {
if v.flag&flagIndir != 0 && v.kind() != Ptr && v.kind() != UnsafePointer {
// eface.word is a pointer to the actual data,
// which might be changed. We need to return
// a pointer to unchanging data, so make a copy.
@ -1777,7 +1777,7 @@ func Select(cases []SelectCase) (chosen int, recv Value, recvOK bool) {
default:
panic("reflect.Select: invalid Dir")
case SelectDefault: // default
case SelectDefault: // default
if haveDefault {
panic("reflect.Select: multiple default cases")
}