diff --git a/src/pkg/fmt/print.go b/src/pkg/fmt/print.go index 4e14fdaa4a7..4b68051188a 100644 --- a/src/pkg/fmt/print.go +++ b/src/pkg/fmt/print.go @@ -520,12 +520,14 @@ func (p *pp) fmtBytes(v []byte, verb int, goSyntax bool, depth int, value interf } func (p *pp) fmtPointer(field interface{}, value reflect.Value, verb int, goSyntax bool) { - v, ok := value.(uintptrGetter) - if !ok { // reflect.PtrValue is a uintptrGetter, so failure means it's not a pointer at all. + var u uintptr + switch value.(type) { + case *reflect.ChanValue, *reflect.FuncValue, *reflect.MapValue, *reflect.PtrValue, *reflect.SliceValue, *reflect.UnsafePointerValue: + u = value.(uintptrGetter).Get() + default: p.badVerb(verb, field) return } - u := v.Get() if goSyntax { p.add('(') p.buf.WriteString(reflect.Typeof(field).String()) @@ -534,7 +536,7 @@ func (p *pp) fmtPointer(field interface{}, value reflect.Value, verb int, goSynt if u == 0 { p.buf.Write(nilBytes) } else { - p.fmt0x64(uint64(v.Get()), true) + p.fmt0x64(uint64(u), true) } p.add(')') } else { @@ -811,7 +813,7 @@ BigSwitch: break } p.fmt0x64(uint64(v), true) - case uintptrGetter: + case *reflect.ChanValue, *reflect.FuncValue, *reflect.UnsafePointerValue: p.fmtPointer(field, value, verb, goSyntax) default: p.unknownType(f)