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gc: fix typed constant declarations

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Fixes #1411.

R=rsc, gri, ejsherry
CC=golang-dev
https://golang.org/cl/4035042
This commit is contained in:
Anthony Martin 2011-01-18 11:24:49 -05:00 committed by Russ Cox
parent 25f762c75b
commit 661bcb773b
2 changed files with 20 additions and 2 deletions
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10
src/cmd/gc/walk.c
View File

@ -269,9 +269,15 @@ walkdef(Node *n)
} }
t = n->type; t = n->type;
if(t != T) { if(t != T) {
convlit(&e, t); if(!okforconst[t->etype]) {
if(!okforconst[t->etype])
yyerror("invalid constant type %T", t); yyerror("invalid constant type %T", t);
goto ret;
}
if(!isideal(e->type) && !eqtype(t, e->type)) {
yyerror("cannot use %+N as type %T in const initializer", e, t);
goto ret;
}
convlit(&e, t);
} }
n->val = e->val; n->val = e->val;
n->type = e->type; n->type = e->type;

12
test/fixedbugs/bug318.go Normal file
View File

@ -0,0 +1,12 @@
// errchk $G $D/$F.go
// Copyright 2011 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 1411.
package main
const ui uint = 0
const i int = ui // ERROR "type"