void multipleCaptures() {
int i = 5, j = 5;
[i, &j]() mutable {
if (i != 5 && j != 5)
clang_analyzer_warnIfReached();
++i;
++j;
}();
clang_analyzer_eval(i == 5); // expected-warning{{TRUE}}
clang_analyzer_eval(j == 6); // expected-warning{{TRUE}}
[=]() mutable {
if (i != 5 && j != 6)
clang_analyzer_warnIfReached();
++i;
++j;
}();
clang_analyzer_eval(i == 5); // expected-warning{{TRUE}}
clang_analyzer_eval(j == 6); // expected-warning{{TRUE}}
[&]() mutable {
if (i != 5 && j != 6)
clang_analyzer_warnIfReached();
++i;
++j;
}();
clang_analyzer_eval(i == 6); // expected-warning{{TRUE}}
clang_analyzer_eval(j == 7); // expected-warning{{TRUE}}
}
bool testRecursiveFrames(bool isInner) {
if (isInner ||
(clang_analyzer_warnIfReached(), false) || // expected-warning{{REACHABLE}}
check(NoReturnDtor()) ||
testRecursiveFrames(true)) {
clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
}
}
void captureConstants() {
const int i = 5;
[=]() {
if (i != 5)
clang_analyzer_warnIfReached();
}();
[&] {
if (i != 5)
clang_analyzer_warnIfReached();
}();
}
void test_single_cfg_block_sink() {
void *p = malloc(1); // no-warning (wherever the leak warning may occur here)
// Due to max-nodes option in the run line, we should reach the first call
// but bail out before the second call.
// If the test on these two lines starts failing, see if modifying
// the max-nodes run-line helps.
clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
clang_analyzer_warnIfReached(); // no-warning
// Even though we do not reach this line, we should still suppress
// the leak report.
exit(0);
}
void captureFields() {
i = 5;
[this]() {
// clang_analyzer_eval does nothing in inlined functions.
if (i != 5)
clang_analyzer_warnIfReached();
++i;
[this]() {
// clang_analyzer_eval does nothing in inlined functions.
if (i != 6)
clang_analyzer_warnIfReached();
++i;
}();
}();
clang_analyzer_eval(i == 7); // expected-warning{{TRUE}}
}
void testConstrainState(int p) {
ASSERT_TRUE(p == 7);
clang_analyzer_eval(p == 7); // expected-warning {{TRUE}}
ASSERT_TRUE(false);
clang_analyzer_warnIfReached(); // no-warning
}
void basicCapture() {
int i = 5;
[i]() mutable {
// clang_analyzer_eval does nothing in inlined functions.
if (i != 5)
clang_analyzer_warnIfReached();
++i;
}();
[&i] {
if (i != 5)
clang_analyzer_warnIfReached();
}();
[&i] {
if (i != 5)
clang_analyzer_warnIfReached();
i++;
}();
clang_analyzer_eval(i == 6); // expected-warning{{TRUE}}
}
int make_new_branches_loop_uncached() {
int l = 2;
for (int i = 0; i < 8; i++) {
clang_analyzer_numTimesReached(); // expected-warning {{10}}
if(getNum()){
++l;
}
}
clang_analyzer_warnIfReached(); // no-warning
return 0;
}
int make_new_branches_loop_cached() {
for (int i = 0; i < 8; i++) {
clang_analyzer_numTimesReached(); // expected-warning {{4}}
if(getNum()){
(void) i; // Since this Stmt does not change the State the analyzer
// won't make a new execution path but reuse the earlier nodes.
}
}
clang_analyzer_warnIfReached(); // no-warning
return 0;
}
void deferredLambdaCall() {
int i = 5;
auto l1 = [i]() mutable {
if (i != 5)
clang_analyzer_warnIfReached();
++i;
};
auto l2 = [&i] {
if (i != 5)
clang_analyzer_warnIfReached();
};
auto l3 = [&i] {
if (i != 5)
clang_analyzer_warnIfReached();
i++;
};
l1();
l2();
l3();
clang_analyzer_eval(i == 6); // expected-warning{{TRUE}}
}
void testNestedLambdas() {
int i = 5;
auto l = [i]() mutable {
[&i]() {
++i;
}();
if (i != 6)
clang_analyzer_warnIfReached();
};
l();
clang_analyzer_eval(i == 5); // expected-warning{{TRUE}}
}
int make_new_branches_loop_uncached2() {
int l = 2;
for (int i = 0; i < 8; i++) {
clang_analyzer_numTimesReached(); // expected-warning {{10}}
if(getNum()){
++l;
}
(void)&i; // This ensures that the loop won't be unrolled.
}
clang_analyzer_warnIfReached(); // no-warning
return 0;
}
void testTernaryFalseBranchReached(bool value) {
value ? check(NoReturnDtor()) :
clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
}
void nullFunctionPointerConstraint(void (*f)(void)) {
if (f)
return;
f(); // expected-warning{{Called function pointer is null}}
clang_analyzer_warnIfReached(); // no-warning
}
void nullFunctionPointerConstant() {
void (*f)(void) = 0;
f(); // expected-warning{{Called function pointer is null}}
clang_analyzer_warnIfReached(); // no-warning
}