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resolver: Fix for-loop conditional validation 

It wasn't unwrapping the reference before type checking

Change-Id: I4bfc038c468c32c2a164bbcbef0a97a3e385d5ba
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60210
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ben Clayton 2021-07-29 16:55:27 +00:00 committed by Tint LUCI CQ
parent f5490c732d
commit ada4864ffe
2 changed files with 92 additions and 82 deletions
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2
src/resolver/resolver.cc
View File

@ -2155,7 +2155,7 @@ bool Resolver::ForLoopStatement(ast::ForLoopStatement* stmt) {
return false;
}
if (!TypeOf(condition)->Is<sem::Bool>()) {
if (!TypeOf(condition)->UnwrapRef()->Is<sem::Bool>()) {
AddError(
"for-loop condition must be bool, got " + TypeNameOf(condition),
condition->source());

10
src/resolver/validation_test.cc
View File

@ -768,6 +768,16 @@ TEST_F(ResolverTest, Stmt_Loop_ContinueInContinuing_Indirect) {
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverTest, Stmt_ForLoop_CondIsBoolRef) {
// var cond : bool = true;
// for (; cond; ) {
// }
auto* cond = Var("cond", ty.bool_(), Expr(true));
WrapInFunction(Decl(cond), For(nullptr, "cond", nullptr, Block()));
EXPECT_TRUE(r()->Resolve()) << r()->error();
}
TEST_F(ResolverTest, Stmt_ForLoop_CondIsNotBool) {
// for (; 1.0f; ) {
// }