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-rw-r--r--test/Analysis/use-after-move.cpp674
1 files changed, 242 insertions, 432 deletions
diff --git a/test/Analysis/use-after-move.cpp b/test/Analysis/use-after-move.cpp
index 280724512f..5e4179b1f1 100644
--- a/test/Analysis/use-after-move.cpp
+++ b/test/Analysis/use-after-move.cpp
@@ -1,31 +1,48 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
+// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
// RUN: -analyzer-config exploration_strategy=unexplored_first_queue\
-// RUN: -analyzer-checker debug.ExprInspection
-// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,peaceful,non-aggressive
+// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
-// RUN: -analyzer-config exploration_strategy=dfs -DDFS=1\
-// RUN: -analyzer-checker debug.ExprInspection
-// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
+// RUN: -analyzer-config exploration_strategy=dfs -DDFS\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,peaceful,non-aggressive
+// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
// RUN: -analyzer-config exploration_strategy=unexplored_first_queue\
-// RUN: -analyzer-config cplusplus.Move:WarnOn=KnownsOnly -DPEACEFUL\
-// RUN: -analyzer-checker debug.ExprInspection
+// RUN: -analyzer-config cplusplus.Move:WarnOn=KnownsOnly\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,non-aggressive
// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
-// RUN: -analyzer-config exploration_strategy=dfs -DDFS=1\
-// RUN: -analyzer-config cplusplus.Move:WarnOn=KnownsOnly -DPEACEFUL\
-// RUN: -analyzer-checker debug.ExprInspection
-// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
+// RUN: -analyzer-config exploration_strategy=dfs -DDFS\
+// RUN: -analyzer-config cplusplus.Move:WarnOn=KnownsOnly\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,non-aggressive
+// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
// RUN: -analyzer-config exploration_strategy=unexplored_first_queue\
-// RUN: -analyzer-config cplusplus.Move:WarnOn=All -DAGGRESSIVE\
-// RUN: -analyzer-checker debug.ExprInspection
-// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move -verify %s\
+// RUN: -analyzer-config cplusplus.Move:WarnOn=All\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,peaceful,aggressive
+// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.Move %s\
// RUN: -std=c++11 -analyzer-output=text -analyzer-config eagerly-assume=false\
-// RUN: -analyzer-config exploration_strategy=dfs -DDFS=1\
-// RUN: -analyzer-config cplusplus.Move:WarnOn=All -DAGGRESSIVE\
-// RUN: -analyzer-checker debug.ExprInspection
+// RUN: -analyzer-config exploration_strategy=dfs -DDFS\
+// RUN: -analyzer-config cplusplus.Move:WarnOn=All\
+// RUN: -analyzer-checker core,cplusplus.SmartPtr,debug.ExprInspection\
+// RUN: -verify=expected,peaceful,aggressive
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-checker=cplusplus.Move \
+// RUN: -analyzer-config cplusplus.Move:WarnOn="a bunch of things" \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-MOVE-INVALID-VALUE
+
+// CHECK-MOVE-INVALID-VALUE: (frontend): invalid input for checker option
+// CHECK-MOVE-INVALID-VALUE-SAME: 'cplusplus.Move:WarnOn', that expects either
+// CHECK-MOVE-INVALID-VALUE-SAME: "KnownsOnly", "KnownsAndLocals" or "All"
+// CHECK-MOVE-INVALID-VALUE-SAME: string value
#include "Inputs/system-header-simulator-cxx.h"
@@ -64,10 +81,7 @@ public:
moveconstruct(std::move(*a));
}
A(const A &other) : i(other.i), d(other.d), b(other.b) {}
- A(A &&other) : i(other.i), d(other.d), b(std::move(other.b)) {
-#ifdef AGGRESSIVE
- // expected-note@-2{{Object 'b' is moved}}
-#endif
+ A(A &&other) : i(other.i), d(other.d), b(std::move(other.b)) { // aggressive-note{{Object 'b' is moved}}
}
A(A &&other, char *k) {
moveconstruct(std::move(other));
@@ -89,6 +103,7 @@ public:
void destroy();
void clear();
void resize(std::size_t);
+ void assign(const A &);
bool empty() const;
bool isEmpty() const;
operator bool() const;
@@ -129,33 +144,21 @@ void copyOrMoveCall(A a) {
void simpleMoveCtorTest() {
{
A a;
- A b = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ A b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
{
A a;
- A b = std::move(a);
- b = a;
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is copied}}
- // expected-note@-4 {{Moved-from object 'a' is copied}}
-#endif
+ A b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ b = a; // peaceful-warning {{Moved-from object 'a' is copied}}
+ // peaceful-note@-1 {{Moved-from object 'a' is copied}}
}
{
A a;
- A b = std::move(a);
- b = std::move(a);
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is moved}}
- // expected-note@-4 {{Moved-from object 'a' is moved}}
-#endif
+ A b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ b = std::move(a); // peaceful-warning {{Moved-from object 'a' is moved}}
+ // peaceful-note@-1 {{Moved-from object 'a' is moved}}
}
}
@@ -163,35 +166,23 @@ void simpleMoveAssignementTest() {
{
A a;
A b;
- b = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
{
A a;
A b;
- b = std::move(a);
- A c(a);
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is copied}}
- // expected-note@-4 {{Moved-from object 'a' is copied}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ A c(a); // peaceful-warning {{Moved-from object 'a' is copied}}
+ // peaceful-note@-1 {{Moved-from object 'a' is copied}}
}
{
A a;
A b;
- b = std::move(a);
- A c(std::move(a));
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is moved}}
- // expected-note@-4 {{Moved-from object 'a' is moved}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ A c(std::move(a)); // peaceful-warning {{Moved-from object 'a' is moved}}
+ // peaceful-note@-1 {{Moved-from object 'a' is moved}}
}
}
@@ -200,13 +191,9 @@ void moveInInitListTest() {
A a;
};
A a;
- S s{std::move(a)};
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ S s{std::move(a)}; // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
// Don't report a bug if the variable was assigned to in the meantime.
@@ -220,43 +207,23 @@ void reinitializationTest(int i) {
}
{
A a;
- if (i == 1) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming 'i' is not equal to 1}}
- // expected-note@-3 {{Taking false branch}}
- // And the other report:
- // expected-note@-5 {{Assuming 'i' is not equal to 1}}
- // expected-note@-6 {{Taking false branch}}
-#endif
+ if (i == 1) { // peaceful-note 2 {{Assuming 'i' is not equal to 1}}
+ // peaceful-note@-1 2 {{Taking false branch}}
A b;
b = std::move(a);
a = A();
}
- if (i == 2) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming 'i' is not equal to 2}}
- // expected-note@-3 {{Taking false branch}}
- // And the other report:
- // expected-note@-5 {{Assuming 'i' is not equal to 2}}
- // expected-note@-6 {{Taking false branch}}
-#endif
+ if (i == 2) { // peaceful-note 2 {{Assuming 'i' is not equal to 2}}
+ // peaceful-note@-1 2 {{Taking false branch}}
a.foo(); // no-warning
}
}
{
A a;
- if (i == 1) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Taking false branch}}
- // expected-note@-3 {{Taking false branch}}
-#endif
+ if (i == 1) { // peaceful-note 2 {{Taking false branch}}
std::move(a);
}
- if (i == 2) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Taking false branch}}
- // expected-note@-3 {{Taking false branch}}
-#endif
+ if (i == 2) { // peaceful-note 2 {{Taking false branch}}
a = A();
a.foo();
}
@@ -274,36 +241,22 @@ void reinitializationTest(int i) {
A b;
b = std::move(a);
a = A();
- b = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
// If a path exist where we not reinitialize the variable we report a bug.
{
A a;
A b;
- b = std::move(a);
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
-#endif
- if (i < 10) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming 'i' is >= 10}}
- // expected-note@-3 {{Taking false branch}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ if (i < 10) { // peaceful-note {{Assuming 'i' is >= 10}}
+ // peaceful-note@-1 {{Taking false branch}}
a = A();
}
- if (i > 5) {
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Taking true branch}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ if (i > 5) { // peaceful-note {{Taking true branch}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
}
}
@@ -318,117 +271,82 @@ void decltypeIsNotUseTest() {
void loopTest() {
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ // FIXME: Execution doesn't jump to the end of the function yet.
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is false. Execution jumps to the end of the function}}
rightRefCall(std::move(a)); // no-warning
}
}
{
A a;
- for (int i = 0; i < 2; i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
- // expected-note@-4 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < 2; i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
rightRefCall(std::move(a)); // no-warning
}
}
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is false. Execution jumps to the end of the function}}
leftRefCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < 2; i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
- // expected-note@-4 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < 2; i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
leftRefCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is false. Execution jumps to the end of the function}}
constCopyOrMoveCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < 2; i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
- // expected-note@-4 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < 2; i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
constCopyOrMoveCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is false. Execution jumps to the end of the function}}
moveInsideFunctionCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < 2; i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
- // expected-note@-4 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < 2; i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
moveInsideFunctionCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is false. Execution jumps to the end of the function}}
copyOrMoveCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < 2; i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
- // expected-note@-4 {{Loop condition is false. Execution jumps to the end of the function}}
-#endif
+ for (int i = 0; i < 2; i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-2 {{Loop condition is false. Execution jumps to the end of the function}}
copyOrMoveCall(a); // no-warning
}
}
{
A a;
- for (int i = 0; i < bignum(); i++) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Loop condition is true. Entering loop body}}
- // expected-note@-3 {{Loop condition is true. Entering loop body}}
-#endif
- constCopyOrMoveCall(std::move(a));
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is moved}}
- // expected-note@-4 {{Moved-from object 'a' is moved}}
-#endif
+ for (int i = 0; i < bignum(); i++) { // peaceful-note {{Loop condition is true. Entering loop body}}
+ // peaceful-note@-1 {{Loop condition is true. Entering loop body}}
+ constCopyOrMoveCall(std::move(a)); // peaceful-note {{Object 'a' is moved}}
+ // peaceful-warning@-1 {{Moved-from object 'a' is moved}}
+ // peaceful-note@-2 {{Moved-from object 'a' is moved}}
}
}
@@ -450,17 +368,12 @@ void loopTest() {
void uniqueTest(bool cond) {
A a(42, 42.0);
A b;
- b = std::move(a);
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
- if (cond) {
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-5 {{Object 'a' is moved}}
- // expected-note@-4 {{Assuming 'cond' is not equal to 0}}
- // expected-note@-5 {{Taking true branch}}
- // expected-warning@-5 {{Method called on moved-from object 'a'}}
- // expected-note@-6 {{Method called on moved-from object 'a'}}
-#endif
+ if (cond) { // peaceful-note {{Assuming 'cond' is not equal to 0}}
+ // peaceful-note@-1 {{Taking true branch}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
if (cond) {
a.bar(); // no-warning
@@ -471,13 +384,9 @@ void uniqueTest(bool cond) {
void uniqueTest2() {
A a;
- A a1 = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ A a1 = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
A a2 = std::move(a); // no-warning
a.foo(); // no-warning
@@ -487,19 +396,13 @@ void uniqueTest2() {
//even on moved-from objects.
void moveSafeFunctionsTest() {
A a;
- A b = std::move(a);
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
-#endif
+ A b = std::move(a); // peaceful-note {{Object 'a' is moved}}
a.empty(); // no-warning
a.isEmpty(); // no-warning
(void)a; // no-warning
(bool)a; // expected-warning {{expression result unused}}
- a.foo();
-#ifndef PEACEFUL
- // expected-warning@-2 {{Method called on moved-from object 'a'}}
- // expected-note@-3 {{Method called on moved-from object 'a'}}
-#endif
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
void moveStateResetFunctionsTest() {
@@ -531,6 +434,13 @@ void moveStateResetFunctionsTest() {
a.foo(); // no-warning
a.b.foo(); // no-warning
}
+ {
+ A a;
+ A b = std::move(a);
+ a.assign(A()); // no-warning
+ a.foo(); // no-warning
+ a.b.foo(); // no-warning
+ }
}
// Moves or uses that occur as part of template arguments.
@@ -570,51 +480,32 @@ class memberVariablesTest {
void f() {
A b;
- b = std::move(a);
- a.foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4{{Method called on moved-from object 'a'}}
-#endif
+ b = std::move(a); // aggressive-note {{Object 'a' is moved}}
- b = std::move(static_a);
- static_a.foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object 'static_a' is moved}}
- // expected-warning@-3{{Method called on moved-from object 'static_a'}}
- // expected-note@-4{{Method called on moved-from object 'static_a'}}
-#endif
+ a.foo(); // aggressive-warning {{Method called on moved-from object 'a'}}
+ // aggressive-note@-1 {{Method called on moved-from object 'a'}}
+
+ b = std::move(static_a); // aggressive-note {{Object 'static_a' is moved}}
+ static_a.foo(); // aggressive-warning {{Method called on moved-from object 'static_a'}}
+ // aggressive-note@-1 {{Method called on moved-from object 'static_a'}}
}
};
void PtrAndArrayTest() {
A *Ptr = new A(1, 1.5);
A Arr[10];
- Arr[2] = std::move(*Ptr);
- (*Ptr).foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object is moved}}
- // expected-warning@-3{{Method called on moved-from object}}
- // expected-note@-4{{Method called on moved-from object}}
-#endif
+ Arr[2] = std::move(*Ptr); // aggressive-note{{Object is moved}}
+ (*Ptr).foo(); // aggressive-warning{{Method called on moved-from object}}
+ // aggressive-note@-1{{Method called on moved-from object}}
Ptr = &Arr[1];
- Arr[3] = std::move(Arr[1]);
- Ptr->foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object is moved}}
- // expected-warning@-3{{Method called on moved-from object}}
- // expected-note@-4{{Method called on moved-from object}}
-#endif
+ Arr[3] = std::move(Arr[1]); // aggressive-note {{Object is moved}}
+ Ptr->foo(); // aggressive-warning {{Method called on moved-from object}}
+ // aggressive-note@-1 {{Method called on moved-from object}}
- Arr[3] = std::move(Arr[2]);
- Arr[2].foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object is moved}}
- // expected-warning@-3{{Method called on moved-from object}}
- // expected-note@-4{{Method called on moved-from object}}
-#endif
+ Arr[3] = std::move(Arr[2]); // aggressive-note{{Object is moved}}
+ Arr[2].foo(); // aggressive-warning{{Method called on moved-from object}}
+ // aggressive-note@-1{{Method called on moved-from object}}
Arr[2] = std::move(Arr[3]); // reinitialization
Arr[2].foo(); // no-warning
@@ -635,11 +526,8 @@ void differentBranchesTest(int i) {
// Don't warn if the use is in a different branch from the move.
{
A a;
- if (i > 0) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming 'i' is > 0}}
- // expected-note@-3 {{Taking true branch}}
-#endif
+ if (i > 0) { // peaceful-note {{Assuming 'i' is > 0}}
+ // peaceful-note@-1 {{Taking true branch}}
A b;
b = std::move(a);
} else {
@@ -649,40 +537,28 @@ void differentBranchesTest(int i) {
// Same thing, but with a ternary operator.
{
A a, b;
- i > 0 ? (void)(b = std::move(a)) : a.bar(); // no-warning
-#ifndef PEACEFUL
- // expected-note@-2 {{'?' condition is true}}
-#endif
+ i > 0 ? (void)(b = std::move(a)) : a.bar(); // no-warning // peaceful-note {{'?' condition is true}}
}
// A variation on the theme above.
{
A a;
a.foo() > 0 ? a.foo() : A(std::move(a)).foo();
#ifdef DFS
- #ifndef PEACEFUL
- // expected-note@-3 {{Assuming the condition is false}}
- // expected-note@-4 {{'?' condition is false}}
- #endif
+ // peaceful-note@-2 {{Assuming the condition is false}}
+ // peaceful-note@-3 {{'?' condition is false}}
#else
- #ifndef PEACEFUL
- // expected-note@-8 {{Assuming the condition is true}}
- // expected-note@-9 {{'?' condition is true}}
- #endif
+ // peaceful-note@-5 {{Assuming the condition is true}}
+ // peaceful-note@-6 {{'?' condition is true}}
#endif
}
// Same thing, but with a switch statement.
{
A a, b;
- switch (i) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Control jumps to 'case 1:'}}
-#endif
+ switch (i) { // peaceful-note {{Control jumps to 'case 1:'}}
case 1:
b = std::move(a); // no-warning
- break;
-#ifndef PEACEFUL
- // expected-note@-2 {{Execution jumps to the end of the function}}
-#endif
+ // FIXME: Execution doesn't jump to the end of the function yet.
+ break; // peaceful-note {{Execution jumps to the end of the function}}
case 2:
a.foo(); // no-warning
break;
@@ -691,21 +567,12 @@ void differentBranchesTest(int i) {
// However, if there's a fallthrough, we do warn.
{
A a, b;
- switch (i) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Control jumps to 'case 1:'}}
-#endif
+ switch (i) { // peaceful-note {{Control jumps to 'case 1:'}}
case 1:
- b = std::move(a);
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
case 2:
- a.foo();
-#ifndef PEACEFUL
- // expected-warning@-2 {{Method called on moved-from object}}
- // expected-note@-3 {{Method called on moved-from object 'a'}}
-#endif
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
break;
}
}
@@ -720,22 +587,15 @@ void tempTest() {
}
void interFunTest1(A &a) {
- a.bar();
-#ifndef PEACEFUL
- // expected-warning@-2 {{Method called on moved-from object 'a'}}
- // expected-note@-3 {{Method called on moved-from object 'a'}}
-#endif
+ a.bar(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
void interFunTest2() {
A a;
A b;
- b = std::move(a);
- interFunTest1(a);
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-note@-3 {{Calling 'interFunTest1'}}
-#endif
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ interFunTest1(a); // peaceful-note {{Calling 'interFunTest1'}}
}
void foobar(A a, int i);
@@ -743,12 +603,9 @@ void foobar(int i, A a);
void paramEvaluateOrderTest() {
A a;
- foobar(std::move(a), a.getI());
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ foobar(std::move(a), a.getI()); // peaceful-note {{Object 'a' is moved}}
+ // peaceful-warning@-1 {{Method called on moved-from object 'a'}}
+ // peaceful-note@-2 {{Method called on moved-from object 'a'}}
//FALSE NEGATIVE since parameters evaluate order is undefined
foobar(a.getI(), std::move(a)); //no-warning
@@ -771,14 +628,10 @@ void regionAndPointerEscapeTest() {
{
A a;
A b;
- b = std::move(a);
+ b = std::move(a); // peaceful-note{{Object 'a' is moved}}
not_known_pass_by_const_ref(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-4{{Object 'a' is moved}}
- // expected-warning@-3{{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
{
A a;
@@ -797,14 +650,10 @@ void regionAndPointerEscapeTest() {
{
A a;
A b;
- b = std::move(a);
+ b = std::move(a); // peaceful-note {{Object 'a' is moved}}
not_known_pass_by_const_ptr(&a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-4{{Object 'a' is moved}}
- // expected-warning@-3{{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
}
@@ -817,12 +666,9 @@ void declarationSequenceTest() {
}
{
A a;
- A a1 = std::move(a), a2 = a;
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
- // expected-warning@-3 {{Moved-from object 'a' is copied}}
- // expected-note@-4 {{Moved-from object 'a' is copied}}
-#endif
+ A a1 = std::move(a), a2 = a; // peaceful-note {{Object 'a' is moved}}
+ // peaceful-warning@-1 {{Moved-from object 'a' is copied}}
+ // peaceful-note@-2 {{Moved-from object 'a' is copied}}
}
}
@@ -830,74 +676,59 @@ void declarationSequenceTest() {
void logicalOperatorsSequenceTest() {
{
A a;
- if (a.foo() > 0 && A(std::move(a)).foo() > 0) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming the condition is false}}
- // expected-note@-3 {{Left side of '&&' is false}}
- // expected-note@-4 {{Taking false branch}}
- // And the other report:
- // expected-note@-6 {{Assuming the condition is false}}
- // expected-note@-7 {{Left side of '&&' is false}}
- // expected-note@-8 {{Taking false branch}}
+ if (a.foo() > 0 && A(std::move(a)).foo() > 0) { // peaceful-note {{Assuming the condition is false}}
+ // peaceful-note@-1 {{Left side of '&&' is false}}
+ // peaceful-note@-2 {{Taking false branch}}
+ // And the other report:
+ // peaceful-note@-4 {{Assuming the condition is false}}
+ // peaceful-note@-5 {{Left side of '&&' is false}}
+ // peaceful-note@-6 {{Taking false branch}}
A().bar();
-#endif
}
}
// A variation: Negate the result of the && (which pushes the && further down
// into the AST).
{
A a;
- if (!(a.foo() > 0 && A(std::move(a)).foo() > 0)) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming the condition is false}}
- // expected-note@-3 {{Left side of '&&' is false}}
- // expected-note@-4 {{Taking true branch}}
- // And the other report:
- // expected-note@-6 {{Assuming the condition is false}}
- // expected-note@-7 {{Left side of '&&' is false}}
- // expected-note@-8 {{Taking true branch}}
-#endif
+ if (!(a.foo() > 0 && A(std::move(a)).foo() > 0)) { // peaceful-note {{Assuming the condition is false}}
+ // peaceful-note@-1 {{Left side of '&&' is false}}
+ // peaceful-note@-2 {{Taking true branch}}
+ // And the other report:
+ // peaceful-note@-4 {{Assuming the condition is false}}
+ // peaceful-note@-5 {{Left side of '&&' is false}}
+ // peaceful-note@-6 {{Taking true branch}}
A().bar();
}
}
{
A a;
- if (A(std::move(a)).foo() > 0 && a.foo() > 0) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
- // expected-note@-3 {{Assuming the condition is true}}
- // expected-note@-4 {{Left side of '&&' is true}}
- // expected-warning@-5 {{Method called on moved-from object 'a'}}
- // expected-note@-6 {{Method called on moved-from object 'a'}}
- // And the other report:
- // expected-note@-8 {{Assuming the condition is false}}
- // expected-note@-9 {{Left side of '&&' is false}}
- // expected-note@-10{{Taking false branch}}
-#endif
+ if (A(std::move(a)).foo() > 0 && a.foo() > 0) { // peaceful-note {{Object 'a' is moved}}
+ // peaceful-note@-1 {{Assuming the condition is true}}
+ // peaceful-note@-2 {{Left side of '&&' is true}}
+ // peaceful-warning@-3 {{Method called on moved-from object 'a'}}
+ // peaceful-note@-4 {{Method called on moved-from object 'a'}}
+ // And the other report:
+ // peaceful-note@-6 {{Assuming the condition is false}}
+ // peaceful-note@-7 {{Left side of '&&' is false}}
+ // peaceful-note@-8 {{Taking false branch}}
A().bar();
}
}
{
A a;
- if (a.foo() > 0 || A(std::move(a)).foo() > 0) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Assuming the condition is true}}
- // expected-note@-3 {{Left side of '||' is true}}
- // expected-note@-4 {{Taking true branch}}
-#endif
+ if (a.foo() > 0 || A(std::move(a)).foo() > 0) { // peaceful-note {{Assuming the condition is true}}
+ // peaceful-note@-1 {{Left side of '||' is true}}
+ // peaceful-note@-2 {{Taking true branch}}
A().bar();
}
}
{
A a;
- if (A(std::move(a)).foo() > 0 || a.foo() > 0) {
-#ifndef PEACEFUL
- // expected-note@-2 {{Object 'a' is moved}}
- // expected-note@-3 {{Assuming the condition is false}}
- // expected-note@-4 {{Left side of '||' is false}}
- // expected-warning@-5 {{Method called on moved-from object 'a'}}
- // expected-note@-6 {{Method called on moved-from object 'a'}}
-#endif
+ if (A(std::move(a)).foo() > 0 || a.foo() > 0) { // peaceful-note {{Object 'a' is moved}}
+ // peaceful-note@-1 {{Assuming the condition is false}}
+ // peaceful-note@-2 {{Left side of '||' is false}}
+ // peaceful-warning@-3 {{Method called on moved-from object 'a'}}
+ // peaceful-note@-4 {{Method called on moved-from object 'a'}}
A().bar();
}
}
@@ -931,47 +762,31 @@ struct C : public A {
void subRegionMoveTest() {
{
A a;
- B b = std::move(a.b);
- a.b.foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Object 'b' is moved}}
- // expected-warning@-3{{Method called on moved-from object 'b'}}
- // expected-note@-4 {{Method called on moved-from object 'b'}}
-#endif
+ B b = std::move(a.b); // aggressive-note {{Object 'b' is moved}}
+ a.b.foo(); // aggressive-warning {{Method called on moved-from object 'b'}}
+ // aggressive-note@-1 {{Method called on moved-from object 'b'}}
}
{
A a;
- A a1 = std::move(a);
- a.b.foo();
-#ifdef AGGRESSIVE
- // expected-note@-3{{Calling move constructor for 'A'}}
- // expected-note@-4{{Returning from move constructor for 'A'}}
- // expected-warning@-4{{Method called on moved-from object 'b'}}
- // expected-note@-5{{Method called on moved-from object 'b'}}
-#endif
+ A a1 = std::move(a); // aggressive-note {{Calling move constructor for 'A'}}
+ // aggressive-note@-1 {{Returning from move constructor for 'A'}}
+ a.b.foo(); // aggressive-warning{{Method called on moved-from object 'b'}}
+ // aggressive-note@-1{{Method called on moved-from object 'b'}}
}
// Don't report a misuse if any SuperRegion is already reported.
{
A a;
- A a1 = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
- a.b.foo(); // no-warning
+ A a1 = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
+ a.b.foo(); // no-warning
}
{
C c;
- C c1 = std::move(c);
- c.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'c' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'c'}}
- // expected-note@-4 {{Method called on moved-from object 'c'}}
-#endif
- c.b.foo(); // no-warning
+ C c1 = std::move(c); // peaceful-note {{Object 'c' is moved}}
+ c.foo(); // peaceful-warning {{Method called on moved-from object 'c'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'c'}}
+ c.b.foo(); // no-warning
}
}
@@ -991,14 +806,10 @@ void resetSuperClass2() {
void reportSuperClass() {
C c;
- C c1 = std::move(c);
- c.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'c' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'c'}}
- // expected-note@-4 {{Method called on moved-from object 'c'}}
-#endif
- C c2 = c; // no-warning
+ C c1 = std::move(c); // peaceful-note {{Object 'c' is moved}}
+ c.foo(); // peaceful-warning {{Method called on moved-from object 'c'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'c'}}
+ C c2 = c; // no-warning
}
struct Empty {};
@@ -1079,31 +890,24 @@ class HasSTLField {
void testVector() {
// Warn even in non-aggressive mode when it comes to STL, because
// in STL the object is left in "valid but unspecified state" after move.
- std::vector<int> W = std::move(V); // expected-note{{Object 'V' of type 'std::vector' is left in a valid but unspecified state after move}}
- V.push_back(123); // expected-warning{{Method called on moved-from object 'V'}}
- // expected-note@-1{{Method called on moved-from object 'V'}}
+ std::vector<int> W = std::move(V); // expected-note {{Object 'V' of type 'std::vector' is left in a valid but unspecified state after move}}
+ V.push_back(123); // expected-warning {{Method called on moved-from object 'V'}}
+ // expected-note@-1 {{Method called on moved-from object 'V'}}
}
std::unique_ptr<int> P;
void testUniquePtr() {
// unique_ptr remains in a well-defined state after move.
- std::unique_ptr<int> Q = std::move(P);
- P.get();
-#ifdef AGGRESSIVE
- // expected-warning@-2{{Method called on moved-from object 'P'}}
- // expected-note@-4{{Object 'P' is moved}}
- // expected-note@-4{{Method called on moved-from object 'P'}}
-#endif
+ std::unique_ptr<int> Q = std::move(P); // aggressive-note {{Object 'P' is moved}}
+ // non-aggressive-note@-1 {{Smart pointer 'P' of type 'std::unique_ptr' is reset to null when moved from}}
+ P.get(); // aggressive-warning{{Method called on moved-from object 'P'}}
+ // aggressive-note@-1{{Method called on moved-from object 'P'}}
// Because that well-defined state is null, dereference is still UB.
// Note that in aggressive mode we already warned about 'P',
// so no extra warning is generated.
- *P += 1;
-#ifndef AGGRESSIVE
- // expected-warning@-2{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
- // expected-note@-14{{Smart pointer 'P' of type 'std::unique_ptr' is reset to null when moved from}}
- // expected-note@-4{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
-#endif
+ *P += 1; // non-aggressive-warning{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
+ // non-aggressive-note@-1{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
// The program should have crashed by now.
clang_analyzer_warnIfReached(); // no-warning
@@ -1111,25 +915,17 @@ class HasSTLField {
};
void localRValueMove(A &&a) {
- A b = std::move(a);
- a.foo();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'a' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'a'}}
- // expected-note@-4 {{Method called on moved-from object 'a'}}
-#endif
+ A b = std::move(a); // peaceful-note {{Object 'a' is moved}}
+ a.foo(); // peaceful-warning {{Method called on moved-from object 'a'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'a'}}
}
void localUniquePtr(std::unique_ptr<int> P) {
// Even though unique_ptr is safe to use after move,
// reusing a local variable this way usually indicates a bug.
- std::unique_ptr<int> Q = std::move(P);
- P.get();
-#ifndef PEACEFUL
- // expected-note@-3 {{Object 'P' is moved}}
- // expected-warning@-3 {{Method called on moved-from object 'P'}}
- // expected-note@-4 {{Method called on moved-from object 'P'}}
-#endif
+ std::unique_ptr<int> Q = std::move(P); // peaceful-note {{Object 'P' is moved}}
+ P.get(); // peaceful-warning {{Method called on moved-from object 'P'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'P'}}
}
void localUniquePtrWithArrow(std::unique_ptr<A> P) {
@@ -1137,3 +933,17 @@ void localUniquePtrWithArrow(std::unique_ptr<A> P) {
P->foo(); // expected-warning{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
// expected-note@-1{{Dereference of null smart pointer 'P' of type 'std::unique_ptr'}}
}
+
+void getAfterMove(std::unique_ptr<A> P) {
+ std::unique_ptr<A> Q = std::move(P); // peaceful-note {{Object 'P' is moved}}
+
+ // TODO: Explain why (bool)P is false.
+ if (P) // peaceful-note{{Taking false branch}}
+ clang_analyzer_warnIfReached(); // no-warning
+
+ A *a = P.get(); // peaceful-warning {{Method called on moved-from object 'P'}}
+ // peaceful-note@-1 {{Method called on moved-from object 'P'}}
+
+ // TODO: Warn on a null dereference here.
+ a->foo();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 12:38:32 +0000