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gc: const nil bug

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Fixes #1073.

R=ken2
CC=golang-dev
https://golang.org/cl/2169043
This commit is contained in:
Russ Cox 2010-09-11 15:47:56 -04:00
parent fa0c53da60
commit 0acb63769c
2 changed files with 6 additions and 0 deletions
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4
src/cmd/gc/walk.c
View File

@ -261,6 +261,10 @@ walkdef(Node *n)
yyerror("const initializer must be constant"); yyerror("const initializer must be constant");
goto ret; goto ret;
} }
if(isconst(e, CTNIL)) {
yyerror("const initializer cannot be nil");
goto ret;
}
t = n->type; t = n->type;
if(t != T) { if(t != T) {
convlit(&e, t); convlit(&e, t);

2
test/const1.go
View File

@ -77,3 +77,5 @@ func main() {
f(String) // ERROR "convert|wrong type|cannot|incompatible" f(String) // ERROR "convert|wrong type|cannot|incompatible"
f(Bool) // ERROR "convert|wrong type|cannot|incompatible" f(Bool) // ERROR "convert|wrong type|cannot|incompatible"
} }
const ptr = nil // ERROR "const.*nil"