diff options
Diffstat (limited to 'src/cmd/gc/swt.c')
| -rw-r--r-- | src/cmd/gc/swt.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/cmd/gc/swt.c b/src/cmd/gc/swt.c index 1cd4cfaa8..952c47246 100644 --- a/src/cmd/gc/swt.c +++ b/src/cmd/gc/swt.c @@ -313,9 +313,13 @@ casebody(Node *sw, Node *typeswvar) // botch - shouldnt fall thru declaration last = stat->end->n; - if(last->op == OXFALL) + if(last->op == OXFALL) { + if(typeswvar) { + setlineno(last); + yyerror("cannot fallthrough in type switch"); + } last->op = OFALL; - else + } else stat = list(stat, br); } @@ -771,7 +775,7 @@ walkswitch(Node *sw) sw->ntest = nodbool(1); typecheck(&sw->ntest, Erv); } - + if(sw->ntest->op == OTYPESW) { typeswitch(sw); //dump("sw", sw); |