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Diffstat (limited to 'compilerplugins/clang/test/flatten.cxx')
| -rw-r--r-- | compilerplugins/clang/test/flatten.cxx | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/flatten.cxx b/compilerplugins/clang/test/flatten.cxx new file mode 100644 index 000000000..300067b9b --- /dev/null +++ b/compilerplugins/clang/test/flatten.cxx @@ -0,0 +1,191 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <exception> + +extern int foo(); +extern int bar(int = 0); +class Class {}; + +void top1() { + if (foo() == 1) { // expected-note {{if condition here [loplugin:flatten]}} + foo(); + } else { + throw std::exception(); // expected-error {{unconditional throw in else branch, rather invert the condition, throw early, and flatten the normal case [loplugin:flatten]}} + } + if (foo() == 1) { + Class aClass; + (void)aClass; + } else { + throw std::exception(); // no warning expected + } + if (foo() == 1) { // expected-note {{if condition here [loplugin:flatten]}} + Class aClass; + (void)aClass; + } else { + throw std::exception(); // expected-error {{unconditional throw in else branch, rather invert the condition, throw early, and flatten the normal case [loplugin:flatten]}} + } +} + +void top2() { + if (foo() == 2) { + throw std::exception(); // expected-error {{unconditional throw in then branch, just flatten the else [loplugin:flatten]}} + } else { + foo(); + } + if (foo() == 2) { + throw std::exception(); // no warning expected + } else { + Class aClass; + (void)aClass; + } + if (foo() == 2) { + throw std::exception(); // expected-error {{unconditional throw in then branch, just flatten the else [loplugin:flatten]}} + } else { + Class aClass; + (void)aClass; + } +} + +void top3() { + // no warning expected + if (foo() == 2) { + throw std::exception(); + } else { + Class aClass; + (void)aClass; + } + int x = 1; + (void)x; +} + +void top4() { + // no warning expected + if (foo() == 2) { + Class aClass; + (void)aClass; + } else { + throw std::exception(); + } + int x = 1; + (void)x; +} + +void top5() { +#if 1 + if (foo() == 2) { + if (foo() == 3) { // expected-note {{if condition here [loplugin:flatten]}} + bar(); + } else { + throw std::exception(); // expected-error {{unconditional throw in else branch, rather invert the condition, throw early, and flatten the normal case [loplugin:flatten]}} + } + } else +#endif + throw std::exception(); // no warning expected +} + +int main() { + // no warning expected + if (bar() == 3) { + throw std::exception(); + } else { + throw std::exception(); + } +} + +void top6() { + // no warning expected + if (foo() == 2) { + Class aClass; + (void)aClass; + } else if (foo() == 2) { + Class aClass; + (void)aClass; + } else { + throw std::exception(); + } + int x = 1; + (void)x; +} + +void top7() { + // no warning expected + if (foo() == 1) { + throw std::exception(); + } else if (foo() == 2) { + throw std::exception(); + } else { + throw std::exception(); + } +} + +void top8() { + if (foo() == 1) { + if (foo() == 2) { + throw std::exception(); // expected-error {{unconditional throw in then branch, just flatten the else [loplugin:flatten]}} + } else { + bar(); + } + } else if (foo() == 2) { + bar(1); + } else { + bar(2); + } +} + +void top9() { + if (foo() == 1) { // expected-error {{large if statement at end of function, rather invert the condition and exit early, and flatten the function [loplugin:flatten]}} + Class aClass1; + (void)aClass1; + Class aClass2; + (void)aClass2; + Class aClass3; + (void)aClass3; + Class aClass4; + (void)aClass4; + Class aClass5; + (void)aClass5; + Class aClass6; + (void)aClass6; + } +} + +void top10() { + // no warning expected + if (foo() == 2) { + if (foo() == 1) { + Class aClass1; + (void)aClass1; + Class aClass2; + (void)aClass2; + Class aClass3; + (void)aClass3; + } + } +} + +int top11() { + // no warning expected + if (foo() == 1) { + Class aClass1; + (void)aClass1; + Class aClass2; + (void)aClass2; + Class aClass3; + (void)aClass3; + Class aClass4; + (void)aClass4; + Class aClass5; + (void)aClass5; + Class aClass6; + (void)aClass6; + } + return 1; +} +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |