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Diagnose, and not crash, when taking address of property expression. 

llvm-svn: 74935
This commit is contained in:
Fariborz Jahanian 2009-07-07 18:50:52 +00:00
parent 32bc1e1a3b
commit 385db80cc5
2 changed files with 23 additions and 0 deletions
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5
clang/lib/Sema/SemaExpr.cpp
View File

@ -4678,6 +4678,11 @@ QualType Sema::CheckAddressOfOperand(Expr *op, SourceLocation OpLoc) {
Diag(OpLoc, diag::err_typecheck_address_of)
<< "vector element" << op->getSourceRange();
return QualType();
} else if (isa<ObjCPropertyRefExpr>(op)) {
// cannot take address of a property expression.
Diag(OpLoc, diag::err_typecheck_address_of)
<< "property expression" << op->getSourceRange();
return QualType();
} else if (dcl) { // C99 6.5.3.2p1
// We have an lvalue with a decl. Make sure the decl is not declared
// with the register storage-class specifier.

18
clang/test/SemaObjC/property-expression-error.m Normal file
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@ -0,0 +1,18 @@
// RUN: clang-cc -fsyntax-only -verify %s
@interface AddressMyProperties
{
unsigned index;
}
@property unsigned index;
@end
@implementation AddressMyProperties
@synthesize index;
@end
int main() {
AddressMyProperties *object;
&object.index; // expected-error {{address of property expression requested}}
return 0;
}