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gc: skip undefined symbols in import .

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Fixes #1284.

R=ken3, rsc
CC=golang-dev
https://golang.org/cl/3210041
This commit is contained in:
Eoghan Sherry 2010-12-07 16:16:01 -05:00 committed by Russ Cox
parent b15c4245c5
commit cab83650d1
4 changed files with 43 additions and 0 deletions
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2
src/cmd/gc/subr.c
View File

@ -363,6 +363,8 @@ importdot(Pkg *opkg, Node *pack)
for(s = hash[h]; s != S; s = s->link) {
if(s->pkg != opkg)
continue;
if(s->def == N)
continue;
if(!exportname(s->name) || utfrune(s->name, 0xb7)) // 0xb7 = center dot
continue;
s1 = lookup(s->name);

11
test/fixedbugs/bug313.dir/a.go Normal file
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@ -0,0 +1,11 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import "fmt"
func a() {
fmt.DoesNotExist() // ERROR "undefined"
}

11
test/fixedbugs/bug313.dir/b.go Normal file
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@ -0,0 +1,11 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import . "fmt"
func b() {
Println()
}

19
test/fixedbugs/bug313.go Normal file
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@ -0,0 +1,19 @@
// errchk $G -e $D/$F.dir/[ab].go
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Issue 1284
package bug313
/*
6g bug313.dir/[ab].go
Before:
bug313.dir/b.go:7: internal compiler error: fault
Now:
bug313.dir/a.go:10: undefined: fmt.DoesNotExist
*/