зеркало из https://github.com/microsoft/clang-1.git
Handle "typeof" in Objective-C format string checking. This previously crashed.
Yes, this came from actual code. Fixes <rdar://problem/13557053>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179155 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2744,6 +2744,10 @@ CheckPrintfHandler::checkFormatExpr(const analyze_printf::PrintfSpecifier &FS,
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return true;
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QualType ExprTy = E->getType();
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while (const TypeOfExprType *TET = dyn_cast<TypeOfExprType>(ExprTy)) {
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ExprTy = TET->getUnderlyingExpr()->getType();
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}
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if (AT.matchesType(S.Context, ExprTy))
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return true;
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@ -13,6 +13,7 @@
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typedef signed char BOOL;
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typedef unsigned int NSUInteger;
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typedef long NSInteger;
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@class NSString, Protocol;
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extern void NSLog(NSString *format, ...);
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extern void NSLogv(NSString *format, va_list args);
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@ -235,3 +236,8 @@ void testByValueObjectInFormat(Foo *obj) {
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[Bar log2:@"%d", *obj]; // expected-error {{cannot pass object with interface type 'Foo' by value to variadic method; expected type from format string was 'int'}}
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}
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// <rdar://problem/13557053>
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void testTypeOf(NSInteger dW, NSInteger dH) {
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NSLog(@"dW %d dH %d",({ __typeof__(dW) __a = (dW); __a < 0 ? -__a : __a; }),({ __typeof__(dH) __a = (dH); __a < 0 ? -__a : __a; })); // expected-warning 2 {{values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead}}
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}
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