707 lines
17 KiB
Plaintext
707 lines
17 KiB
Plaintext
// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -fobjc-arc -analyzer-config c++-inlining=constructors -Wno-null-dereference -std=c++11 -verify %s
|
|
|
|
#include "Inputs/system-header-simulator-cxx.h"
|
|
|
|
void clang_analyzer_eval(bool);
|
|
void clang_analyzer_checkInlined(bool);
|
|
|
|
// A simplified version of std::move.
|
|
template <typename T>
|
|
T &&move(T &obj) {
|
|
return static_cast<T &&>(obj);
|
|
}
|
|
|
|
|
|
struct Wrapper {
|
|
__strong id obj;
|
|
};
|
|
|
|
void test() {
|
|
Wrapper w;
|
|
// force a diagnostic
|
|
*(char *)0 = 1; // expected-warning{{Dereference of null pointer}}
|
|
}
|
|
|
|
|
|
struct IntWrapper {
|
|
int x;
|
|
};
|
|
|
|
void testCopyConstructor() {
|
|
IntWrapper a;
|
|
a.x = 42;
|
|
|
|
IntWrapper b(a);
|
|
clang_analyzer_eval(b.x == 42); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct NonPODIntWrapper {
|
|
int x;
|
|
|
|
virtual int get();
|
|
};
|
|
|
|
void testNonPODCopyConstructor() {
|
|
NonPODIntWrapper a;
|
|
a.x = 42;
|
|
|
|
NonPODIntWrapper b(a);
|
|
clang_analyzer_eval(b.x == 42); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
|
|
namespace ConstructorVirtualCalls {
|
|
class A {
|
|
public:
|
|
int *out1, *out2, *out3;
|
|
|
|
virtual int get() { return 1; }
|
|
|
|
A(int *out1) {
|
|
*out1 = get();
|
|
}
|
|
};
|
|
|
|
class B : public A {
|
|
public:
|
|
virtual int get() { return 2; }
|
|
|
|
B(int *out1, int *out2) : A(out1) {
|
|
*out2 = get();
|
|
}
|
|
};
|
|
|
|
class C : public B {
|
|
public:
|
|
virtual int get() { return 3; }
|
|
|
|
C(int *out1, int *out2, int *out3) : B(out1, out2) {
|
|
*out3 = get();
|
|
}
|
|
};
|
|
|
|
void test() {
|
|
int a, b, c;
|
|
|
|
C obj(&a, &b, &c);
|
|
clang_analyzer_eval(a == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c == 3); // expected-warning{{TRUE}}
|
|
|
|
clang_analyzer_eval(obj.get() == 3); // expected-warning{{TRUE}}
|
|
|
|
// Sanity check for devirtualization.
|
|
A *base = &obj;
|
|
clang_analyzer_eval(base->get() == 3); // expected-warning{{TRUE}}
|
|
}
|
|
}
|
|
|
|
namespace TemporaryConstructor {
|
|
class BoolWrapper {
|
|
public:
|
|
BoolWrapper() {
|
|
clang_analyzer_checkInlined(true); // expected-warning{{TRUE}}
|
|
value = true;
|
|
}
|
|
bool value;
|
|
};
|
|
|
|
void test() {
|
|
// PR13717 - Don't crash when a CXXTemporaryObjectExpr is inlined.
|
|
if (BoolWrapper().value)
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
namespace ConstructorUsedAsRValue {
|
|
using TemporaryConstructor::BoolWrapper;
|
|
|
|
bool extractValue(BoolWrapper b) {
|
|
return b.value;
|
|
}
|
|
|
|
void test() {
|
|
bool result = extractValue(BoolWrapper());
|
|
clang_analyzer_eval(result); // expected-warning{{TRUE}}
|
|
}
|
|
}
|
|
|
|
namespace PODUninitialized {
|
|
class POD {
|
|
public:
|
|
int x, y;
|
|
};
|
|
|
|
class PODWrapper {
|
|
public:
|
|
POD p;
|
|
};
|
|
|
|
class NonPOD {
|
|
public:
|
|
int x, y;
|
|
|
|
NonPOD() {}
|
|
NonPOD(const NonPOD &Other)
|
|
: x(Other.x), y(Other.y) // expected-warning {{undefined}}
|
|
{
|
|
}
|
|
NonPOD(NonPOD &&Other)
|
|
: x(Other.x), y(Other.y) // expected-warning {{undefined}}
|
|
{
|
|
}
|
|
|
|
NonPOD &operator=(const NonPOD &Other)
|
|
{
|
|
x = Other.x;
|
|
y = Other.y; // expected-warning {{undefined}}
|
|
return *this;
|
|
}
|
|
NonPOD &operator=(NonPOD &&Other)
|
|
{
|
|
x = Other.x;
|
|
y = Other.y; // expected-warning {{undefined}}
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
class NonPODWrapper {
|
|
public:
|
|
class Inner {
|
|
public:
|
|
int x, y;
|
|
|
|
Inner() {}
|
|
Inner(const Inner &Other)
|
|
: x(Other.x), y(Other.y) // expected-warning {{undefined}}
|
|
{
|
|
}
|
|
Inner(Inner &&Other)
|
|
: x(Other.x), y(Other.y) // expected-warning {{undefined}}
|
|
{
|
|
}
|
|
|
|
Inner &operator=(const Inner &Other)
|
|
{
|
|
x = Other.x; // expected-warning {{undefined}}
|
|
y = Other.y;
|
|
return *this;
|
|
}
|
|
Inner &operator=(Inner &&Other)
|
|
{
|
|
x = Other.x; // expected-warning {{undefined}}
|
|
y = Other.y;
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
Inner p;
|
|
};
|
|
|
|
void testPOD() {
|
|
POD p;
|
|
p.x = 1;
|
|
POD p2 = p; // no-warning
|
|
clang_analyzer_eval(p2.x == 1); // expected-warning{{TRUE}}
|
|
POD p3 = move(p); // no-warning
|
|
clang_analyzer_eval(p3.x == 1); // expected-warning{{TRUE}}
|
|
|
|
// Use rvalues as well.
|
|
clang_analyzer_eval(POD(p3).x == 1); // expected-warning{{TRUE}}
|
|
|
|
PODWrapper w;
|
|
w.p.y = 1;
|
|
PODWrapper w2 = w; // no-warning
|
|
clang_analyzer_eval(w2.p.y == 1); // expected-warning{{TRUE}}
|
|
PODWrapper w3 = move(w); // no-warning
|
|
clang_analyzer_eval(w3.p.y == 1); // expected-warning{{TRUE}}
|
|
|
|
// Use rvalues as well.
|
|
clang_analyzer_eval(PODWrapper(w3).p.y == 1); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testNonPOD() {
|
|
NonPOD p;
|
|
p.x = 1;
|
|
NonPOD p2 = p;
|
|
}
|
|
|
|
void testNonPODMove() {
|
|
NonPOD p;
|
|
p.x = 1;
|
|
NonPOD p2 = move(p);
|
|
}
|
|
|
|
void testNonPODWrapper() {
|
|
NonPODWrapper w;
|
|
w.p.y = 1;
|
|
NonPODWrapper w2 = w;
|
|
}
|
|
|
|
void testNonPODWrapperMove() {
|
|
NonPODWrapper w;
|
|
w.p.y = 1;
|
|
NonPODWrapper w2 = move(w);
|
|
}
|
|
|
|
// Not strictly about constructors, but trivial assignment operators should
|
|
// essentially work the same way.
|
|
namespace AssignmentOperator {
|
|
void testPOD() {
|
|
POD p;
|
|
p.x = 1;
|
|
POD p2;
|
|
p2 = p; // no-warning
|
|
clang_analyzer_eval(p2.x == 1); // expected-warning{{TRUE}}
|
|
POD p3;
|
|
p3 = move(p); // no-warning
|
|
clang_analyzer_eval(p3.x == 1); // expected-warning{{TRUE}}
|
|
|
|
PODWrapper w;
|
|
w.p.y = 1;
|
|
PODWrapper w2;
|
|
w2 = w; // no-warning
|
|
clang_analyzer_eval(w2.p.y == 1); // expected-warning{{TRUE}}
|
|
PODWrapper w3;
|
|
w3 = move(w); // no-warning
|
|
clang_analyzer_eval(w3.p.y == 1); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testReturnValue() {
|
|
POD p;
|
|
p.x = 1;
|
|
POD p2;
|
|
clang_analyzer_eval(&(p2 = p) == &p2); // expected-warning{{TRUE}}
|
|
|
|
PODWrapper w;
|
|
w.p.y = 1;
|
|
PODWrapper w2;
|
|
clang_analyzer_eval(&(w2 = w) == &w2); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testNonPOD() {
|
|
NonPOD p;
|
|
p.x = 1;
|
|
NonPOD p2;
|
|
p2 = p;
|
|
}
|
|
|
|
void testNonPODMove() {
|
|
NonPOD p;
|
|
p.x = 1;
|
|
NonPOD p2;
|
|
p2 = move(p);
|
|
}
|
|
|
|
void testNonPODWrapper() {
|
|
NonPODWrapper w;
|
|
w.p.y = 1;
|
|
NonPODWrapper w2;
|
|
w2 = w;
|
|
}
|
|
|
|
void testNonPODWrapperMove() {
|
|
NonPODWrapper w;
|
|
w.p.y = 1;
|
|
NonPODWrapper w2;
|
|
w2 = move(w);
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace ArrayMembers {
|
|
struct Primitive {
|
|
int values[3];
|
|
};
|
|
|
|
void testPrimitive() {
|
|
Primitive a = { { 1, 2, 3 } };
|
|
|
|
clang_analyzer_eval(a.values[0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[2] == 3); // expected-warning{{TRUE}}
|
|
|
|
Primitive b = a;
|
|
|
|
clang_analyzer_eval(b.values[0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[2] == 3); // expected-warning{{TRUE}}
|
|
|
|
Primitive c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[2] == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct NestedPrimitive {
|
|
int values[2][3];
|
|
};
|
|
|
|
void testNestedPrimitive() {
|
|
NestedPrimitive a = { { { 0, 0, 0 }, { 1, 2, 3 } } };
|
|
|
|
clang_analyzer_eval(a.values[1][0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][2] == 3); // expected-warning{{TRUE}}
|
|
|
|
NestedPrimitive b = a;
|
|
|
|
clang_analyzer_eval(b.values[1][0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1][1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1][2] == 3); // expected-warning{{TRUE}}
|
|
|
|
NestedPrimitive c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[1][0] == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1][1] == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1][2] == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct POD {
|
|
IntWrapper values[3];
|
|
};
|
|
|
|
void testPOD() {
|
|
POD a = { { { 1 }, { 2 }, { 3 } } };
|
|
|
|
clang_analyzer_eval(a.values[0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
POD b = a;
|
|
|
|
clang_analyzer_eval(b.values[0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
POD c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[2].x == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct NestedPOD {
|
|
IntWrapper values[2][3];
|
|
};
|
|
|
|
void testNestedPOD() {
|
|
NestedPOD a = { { { { 0 }, { 0 }, { 0 } }, { { 1 }, { 2 }, { 3 } } } };
|
|
|
|
clang_analyzer_eval(a.values[1][0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
NestedPOD b = a;
|
|
|
|
clang_analyzer_eval(b.values[1][0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1][1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(b.values[1][2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
NestedPOD c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[1][0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1][1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(c.values[1][2].x == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct NonPOD {
|
|
NonPODIntWrapper values[3];
|
|
};
|
|
|
|
void testNonPOD() {
|
|
NonPOD a;
|
|
a.values[0].x = 1;
|
|
a.values[1].x = 2;
|
|
a.values[2].x = 3;
|
|
|
|
clang_analyzer_eval(a.values[0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
NonPOD b = a;
|
|
|
|
clang_analyzer_eval(b.values[0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[2].x == 3); // expected-warning{{UNKNOWN}}
|
|
|
|
NonPOD c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[2].x == 3); // expected-warning{{UNKNOWN}}
|
|
}
|
|
|
|
struct NestedNonPOD {
|
|
NonPODIntWrapper values[2][3];
|
|
};
|
|
|
|
void testNestedNonPOD() {
|
|
NestedNonPOD a;
|
|
a.values[0][0].x = 0;
|
|
a.values[0][1].x = 0;
|
|
a.values[0][2].x = 0;
|
|
a.values[1][0].x = 1;
|
|
a.values[1][1].x = 2;
|
|
a.values[1][2].x = 3;
|
|
|
|
clang_analyzer_eval(a.values[1][0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1][2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
NestedNonPOD b = a;
|
|
|
|
clang_analyzer_eval(b.values[1][0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[1][1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[1][2].x == 3); // expected-warning{{UNKNOWN}}
|
|
|
|
NestedNonPOD c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[1][0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[1][1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[1][2].x == 3); // expected-warning{{UNKNOWN}}
|
|
}
|
|
|
|
struct NonPODDefaulted {
|
|
NonPODIntWrapper values[3];
|
|
|
|
NonPODDefaulted() = default;
|
|
NonPODDefaulted(const NonPODDefaulted &) = default;
|
|
NonPODDefaulted &operator=(const NonPODDefaulted &) = default;
|
|
};
|
|
|
|
void testNonPODDefaulted() {
|
|
NonPODDefaulted a;
|
|
a.values[0].x = 1;
|
|
a.values[1].x = 2;
|
|
a.values[2].x = 3;
|
|
|
|
clang_analyzer_eval(a.values[0].x == 1); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[1].x == 2); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(a.values[2].x == 3); // expected-warning{{TRUE}}
|
|
|
|
NonPODDefaulted b = a;
|
|
|
|
clang_analyzer_eval(b.values[0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(b.values[2].x == 3); // expected-warning{{UNKNOWN}}
|
|
|
|
NonPODDefaulted c;
|
|
c = b;
|
|
|
|
clang_analyzer_eval(c.values[0].x == 1); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[1].x == 2); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(c.values[2].x == 3); // expected-warning{{UNKNOWN}}
|
|
}
|
|
};
|
|
|
|
namespace VirtualInheritance {
|
|
int counter;
|
|
|
|
struct base {
|
|
base() {
|
|
++counter;
|
|
}
|
|
};
|
|
|
|
struct virtual_subclass : public virtual base {
|
|
virtual_subclass() {}
|
|
};
|
|
|
|
struct double_subclass : public virtual_subclass {
|
|
double_subclass() {}
|
|
};
|
|
|
|
void test() {
|
|
counter = 0;
|
|
double_subclass obj;
|
|
clang_analyzer_eval(counter == 1); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct double_virtual_subclass : public virtual virtual_subclass {
|
|
double_virtual_subclass() {}
|
|
};
|
|
|
|
void testVirtual() {
|
|
counter = 0;
|
|
double_virtual_subclass obj;
|
|
clang_analyzer_eval(counter == 1); // expected-warning{{TRUE}}
|
|
}
|
|
}
|
|
|
|
namespace ZeroInitialization {
|
|
struct raw_pair {
|
|
int p1;
|
|
int p2;
|
|
};
|
|
|
|
void testVarDecl() {
|
|
raw_pair p{};
|
|
clang_analyzer_eval(p.p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p.p2 == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testTemporary() {
|
|
clang_analyzer_eval(raw_pair().p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(raw_pair().p2 == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testArray() {
|
|
raw_pair p[2] = {};
|
|
clang_analyzer_eval(p[0].p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p[0].p2 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p[1].p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p[1].p2 == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testNew() {
|
|
// FIXME: Pending proper implementation of constructors for 'new'.
|
|
raw_pair *pp = new raw_pair();
|
|
clang_analyzer_eval(pp->p1 == 0); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(pp->p2 == 0); // expected-warning{{UNKNOWN}}
|
|
}
|
|
|
|
void testArrayNew() {
|
|
// FIXME: Pending proper implementation of constructors for 'new[]'.
|
|
raw_pair *p = new raw_pair[2]();
|
|
clang_analyzer_eval(p[0].p1 == 0); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(p[0].p2 == 0); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(p[1].p1 == 0); // expected-warning{{UNKNOWN}}
|
|
clang_analyzer_eval(p[1].p2 == 0); // expected-warning{{UNKNOWN}}
|
|
}
|
|
|
|
struct initializing_pair {
|
|
public:
|
|
int x;
|
|
raw_pair y;
|
|
initializing_pair() : x(), y() {}
|
|
};
|
|
|
|
void testFieldInitializers() {
|
|
initializing_pair p;
|
|
clang_analyzer_eval(p.x == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p.y.p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p.y.p2 == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct subclass : public raw_pair {
|
|
subclass() = default;
|
|
};
|
|
|
|
void testSubclass() {
|
|
subclass p;
|
|
clang_analyzer_eval(p.p1 == 0); // expected-warning{{garbage}}
|
|
}
|
|
|
|
struct initializing_subclass : public raw_pair {
|
|
initializing_subclass() : raw_pair() {}
|
|
};
|
|
|
|
void testInitializingSubclass() {
|
|
initializing_subclass p;
|
|
clang_analyzer_eval(p.p1 == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(p.p2 == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct pair_wrapper {
|
|
pair_wrapper() : p() {}
|
|
raw_pair p;
|
|
};
|
|
|
|
struct virtual_subclass : public virtual pair_wrapper {
|
|
virtual_subclass() {}
|
|
};
|
|
|
|
struct double_virtual_subclass : public virtual_subclass {
|
|
double_virtual_subclass() {
|
|
// This previously caused a crash because the pair_wrapper subobject was
|
|
// initialized twice.
|
|
}
|
|
};
|
|
|
|
class Empty {
|
|
public:
|
|
Empty();
|
|
};
|
|
|
|
class PairContainer : public Empty {
|
|
raw_pair p;
|
|
public:
|
|
PairContainer() : Empty(), p() {
|
|
// This previously caused a crash because the empty base class looked
|
|
// like an initialization of 'p'.
|
|
}
|
|
PairContainer(int) : Empty(), p() {
|
|
// Test inlining something else here.
|
|
}
|
|
};
|
|
|
|
class PairContainerContainer {
|
|
int padding;
|
|
PairContainer pc;
|
|
public:
|
|
PairContainerContainer() : pc(1) {}
|
|
};
|
|
}
|
|
|
|
namespace InitializerList {
|
|
struct List {
|
|
bool usedInitializerList;
|
|
|
|
List() : usedInitializerList(false) {}
|
|
List(std::initializer_list<int>) : usedInitializerList(true) {}
|
|
};
|
|
|
|
void testStatic() {
|
|
List defaultCtor;
|
|
clang_analyzer_eval(!defaultCtor.usedInitializerList); // expected-warning{{TRUE}}
|
|
|
|
List list{1, 2};
|
|
clang_analyzer_eval(list.usedInitializerList); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
void testDynamic() {
|
|
List *list = new List{1, 2};
|
|
// FIXME: When we handle constructors with 'new', this will be TRUE.
|
|
clang_analyzer_eval(list->usedInitializerList); // expected-warning{{UNKNOWN}}
|
|
}
|
|
}
|
|
|
|
namespace PR19579 {
|
|
class C {};
|
|
|
|
void f() {
|
|
C();
|
|
int a;
|
|
|
|
extern void use(int);
|
|
use(a); // expected-warning{{uninitialized}}
|
|
}
|
|
|
|
void g() {
|
|
struct S {
|
|
C c;
|
|
int i;
|
|
};
|
|
|
|
// This order triggers the initialization of the inner "a" after the
|
|
// constructor for "C" is run, which used to confuse the analyzer
|
|
// (is "C()" the initialization of "a"?).
|
|
struct S s = {
|
|
C(),
|
|
({
|
|
int a, b = 0;
|
|
0;
|
|
})
|
|
};
|
|
}
|
|
}
|