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bug252: make ... vs ...T crossing an error, at least for now

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R=r
CC=golang-dev
https://golang.org/cl/199066
This commit is contained in:
Russ Cox 2010-02-02 15:00:13 -08:00
parent 44898c7b76
commit 8bef7fdc39
2 changed files with 20 additions and 0 deletions
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5
src/cmd/gc/typecheck.c
View File

@ -1517,6 +1517,11 @@ typecheckaste(int op, Type *tstruct, NodeList *nl, char *desc)
for(tl=tstruct->type; tl; tl=tl->down) { for(tl=tstruct->type; tl; tl=tl->down) {
t = tl->type; t = tl->type;
if(tl->isddd) { if(tl->isddd) {
if(nl != nil && nl->n->isddd && !eqtype(nl->n->type, t)) {
// TODO(rsc): This is not actually illegal but will
// help catch bugs.
yyerror("cannot pass %+N as %T (... mismatch)", nl->n, tl);
}
if(nl != nil && nl->next == nil && nl->n->isddd && eqtype(nl->n->type, t)) if(nl != nil && nl->next == nil && nl->n->isddd && eqtype(nl->n->type, t))
goto out; goto out;
for(; nl; nl=nl->next) { for(; nl; nl=nl->next) {

15
test/fixedbugs/bug252.go Normal file
View File

@ -0,0 +1,15 @@
// errchk $G $D/$F.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.
package main
func f(args ...) {
g(args) // ERROR "[.][.][.] mismatch"
}
func g(args ...interface{}) {
f(args) // ERROR "[.][.][.] mismatch"
}