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gc: never include ( ) on singleton func return type
Fixes #749. R=ken2 CC=golang-dev https://golang.org/cl/963043
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@ -1227,14 +1227,10 @@ Tpretty(Fmt *fp, Type *t)
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fmtprint(fp, " ?unknown-type?");
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fmtprint(fp, " ?unknown-type?");
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break;
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break;
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}
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}
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if(t1->etype != TFIELD) {
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if(t1->etype == TFIELD)
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fmtprint(fp, " %T", t1);
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t1 = t1->type;
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break;
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fmtprint(fp, " %T", t1);
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}
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break;
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if(t1->sym == S) {
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fmtprint(fp, " %T", t1->type);
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break;
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}
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default:
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default:
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t1 = getoutargx(t)->type;
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t1 = getoutargx(t)->type;
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fmtprint(fp, " (");
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fmtprint(fp, " (");
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18
test/fixedbugs/bug269.go
Normal file
18
test/fixedbugs/bug269.go
Normal file
@ -0,0 +1,18 @@
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// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// http://code.google.com/p/go/issues/detail?id=749
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package main
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func f() (ok bool) { return false }
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func main() {
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var i interface{}
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i = f
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_ = i.(func()bool)
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_ = i.(func()(bool))
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}
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