163 lines · cpp
1// RUN: %check_clang_tidy %s bugprone-unused-raii %t -- -- -fno-delayed-template-parsing2 3struct Foo {4 Foo();5 Foo(int);6 Foo(int, int);7 ~Foo();8};9 10struct Bar {11 Bar();12};13 14struct FooBar {15 FooBar();16 Foo f;17};18 19template <typename T>20void qux() {21 T(42);22}23 24template <typename T>25struct TFoo {26 TFoo(T);27 ~TFoo();28};29 30Foo f();31 32struct Ctor {33 Ctor(int);34 Ctor() {35 Ctor(0); // TODO: warn here.36 }37};38 39template <typename T>40void templ() {41 T();42}43 44template <typename T>45void neverInstantiated() {46 T();47}48 49struct CtorDefaultArg {50 CtorDefaultArg(int i = 0);51 ~CtorDefaultArg();52};53 54template <typename T>55struct TCtorDefaultArg {56 TCtorDefaultArg(T i = 0);57 ~TCtorDefaultArg();58};59 60struct CtorTwoDefaultArg {61 CtorTwoDefaultArg(int i = 0, bool b = false);62 ~CtorTwoDefaultArg();63};64 65template <typename T>66void templatetest() {67 TCtorDefaultArg<T>();68 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?69 // CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name;70 TCtorDefaultArg<T>{};71 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?72 // CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name;73 74 TCtorDefaultArg<T>(T{});75 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?76 // CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name(T{});77 TCtorDefaultArg<T>{T{}};78 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?79 // CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name{T{}};80 81 int i = 0;82 (void)i;83}84 85template <typename T>86void aliastest() {87 using X = Foo;88 using Y = X;89 using Z = Y;90 Z(42);91 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?92 // CHECK-FIXES: Z give_me_a_name(42);93 94 typedef Z ZT;95 ZT(42, 13);96 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?97 // CHECK-FIXES: ZT give_me_a_name(42, 13);98 99 using TT = TCtorDefaultArg<T>;100 TT(42);101 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?102 // CHECK-FIXES: TT give_me_a_name(42);103 104 (void)0;105}106 107void test() {108 Foo(42);109// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?110// CHECK-FIXES: Foo give_me_a_name(42);111 Foo(23, 42);112// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?113// CHECK-FIXES: Foo give_me_a_name(23, 42);114 Foo();115// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?116// CHECK-FIXES: Foo give_me_a_name;117 TFoo<int>(23);118// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?119// CHECK-FIXES: TFoo<int> give_me_a_name(23);120 121 FooBar();122// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?123// CHECK-FIXES: FooBar give_me_a_name;124 125 Foo{42};126 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?127 // CHECK-FIXES: Foo give_me_a_name{42};128 FooBar{};129 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?130 // CHECK-FIXES: FooBar give_me_a_name;131 132 CtorDefaultArg();133 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?134 // CHECK-FIXES: CtorDefaultArg give_me_a_name;135 136 CtorTwoDefaultArg();137 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?138 // CHECK-FIXES: CtorTwoDefaultArg give_me_a_name;139 140 TCtorDefaultArg<int>();141 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?142 // CHECK-FIXES: TCtorDefaultArg<int> give_me_a_name;143 144 TCtorDefaultArg<int>{};145 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?146 // CHECK-FIXES: TCtorDefaultArg<int> give_me_a_name;147 148 templ<FooBar>();149 templ<Bar>();150 151 Bar();152 f();153 qux<Foo>();154 155#define M Foo();156 M157 158 {159 Foo();160 }161 Foo();162}163