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Add test case for nonnull attribute. 

Fix indexing bug.

llvm-svn: 53882
This commit is contained in:
Ted Kremenek 2008-07-21 22:09:15 +00:00
parent 2d63bc1e99
commit 5224e6a81d
2 changed files with 14 additions and 1 deletions
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7
clang/lib/Sema/SemaDeclAttr.cpp
View File

@ -14,6 +14,7 @@
#include "Sema.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/TargetInfo.h"
#include <sstream>
using namespace clang;
//===----------------------------------------------------------------------===//
@ -266,11 +267,15 @@ static void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) {
unsigned x = (unsigned) ArgNum.getZExtValue();
if (x < 1 || x > NumArgs) {
std::ostringstream os;
os << I.getArgNum();
S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds,
"nonnull", Ex->getSourceRange());
"nonnull", os.str(), Ex->getSourceRange());
return;
}
--x;
// Is the function argument a pointer type?
if (!proto->getArgType(x).getCanonicalType()->isPointerType()) {
// FIXME: Should also highlight argument in decl.

8
clang/test/Sema/nonnull.c Normal file
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@ -0,0 +1,8 @@
// RUN: clang -fsyntax-only -verify %s
int f1(int x) __attribute__((nonnull));
int f2(int *x) __attribute__ ((nonnull (1)));
int f3(int *x) __attribute__ ((nonnull (0))); // expected-error {{'nonnull' attribute parameter 1 is out of bounds}}
int f4(int *x, int *y) __attribute__ ((nonnull (1,2)));
int f5(int *x, int *y) __attribute__ ((nonnull (2,1)));