| /******************************************************************************* |
| * Copyright (c) 2009, 2015 Alena Laskavaia |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Alena Laskavaia - initial API and implementation |
| * Felipe Martinez - ReturnCheckerTest implementation |
| * Tomasz Wesolowski - Bug 348387 |
| *******************************************************************************/ |
| package org.eclipse.cdt.codan.core.internal.checkers; |
| |
| import org.eclipse.cdt.codan.core.param.IProblemPreference; |
| import org.eclipse.cdt.codan.core.tests.CheckerTestCase; |
| import org.eclipse.cdt.codan.internal.checkers.ReturnChecker; |
| |
| /** |
| * Test for {@see ReturnCheckerTest} class |
| */ |
| public class ReturnCheckerTest extends CheckerTestCase { |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| enableProblems(ReturnChecker.RET_NORET_ID, ReturnChecker.RET_ERR_VALUE_ID, ReturnChecker.RET_NO_VALUE_ID, |
| ReturnChecker.RET_LOCAL_ID); |
| } |
| |
| @Override |
| public boolean isCpp() { |
| return true; |
| } |
| |
| // void dummy() { |
| // return; // no error here on line 2 |
| // } |
| public void testDummyFunction() throws Exception { |
| checkSampleAbove(); |
| // because return type if not defined, usually people don't care |
| } |
| |
| // void void_function(void) { |
| // return; // no error here |
| // } |
| public void testVoidFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int integer_return_function(void) { // error |
| // if (global) { |
| // if (global == 100) { |
| // return; // error here on line 4 |
| // } |
| // } |
| // } |
| public void testBasicTypeFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // |
| // struct My_Struct { |
| // int a; |
| // }; |
| // |
| // struct My_Struct struct_return_function(void) { |
| // return; // error here on line 6 |
| // } |
| public void testUserDefinedFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // typedef unsigned int uint8_t; |
| // |
| // uint8_t return_typedef(void) { |
| // return; // error here on line 4 |
| // } |
| public void testTypedefReturnFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // typedef unsigned int uint8_t; |
| // |
| // uint8_t (*return_fp_no_typedef(void))(void) |
| // { |
| // return; // error here on line 5 |
| // } |
| public void testFunctionPointerReturnFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // void test() { |
| // class A { |
| // public: |
| // void m() { |
| // return; // should not be an error here |
| // } |
| // }; |
| // } |
| public void testInnerFunction_Bug315525() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // void test() { |
| // class A { |
| // public: |
| // int m() { |
| // return; // error here |
| // } |
| // }; |
| // } |
| public void testInnerFunction_Bug316154() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // class c { |
| // c() { |
| // return 0; |
| // } |
| // |
| // ~c() { |
| // return; |
| // } |
| // }; |
| public void testConstructorRetValue() throws Exception { |
| loadCodeAndRunCpp(getAboveComment()); |
| checkErrorLine(3, ReturnChecker.RET_ERR_VALUE_ID); |
| } |
| |
| // class c { |
| // c() { |
| // return; |
| // } |
| // |
| // ~c() { |
| // return; |
| // } |
| // }; |
| public void testConstructor_Bug323602() throws Exception { |
| IProblemPreference macro = getPreference(ReturnChecker.RET_NO_VALUE_ID, ReturnChecker.PARAM_IMPLICIT); |
| macro.setValue(Boolean.TRUE); |
| loadCodeAndRunCpp(getAboveComment()); |
| checkNoErrors(); |
| } |
| |
| // void f() |
| // { |
| // [](int r){return r;}(5); |
| // } |
| public void testLambda_Bug332285() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // void f() |
| // { |
| // if ([](int r){return r == 0;}(0)) |
| // ; |
| // } |
| public void testLambda2_Bug332285() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // void g() |
| // { |
| // int r; |
| // ({return r;}); // error |
| // } |
| public void testGccExtensions() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // auto f() -> void |
| // { |
| // } |
| public void testVoidLateSpecifiedReturnType_Bug337677() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // auto f() -> void* // error |
| // { |
| // } |
| public void testVoidPointerLateSpecifiedReturnType_Bug337677() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int f() // error |
| // { |
| // if (g()) |
| // h(); |
| // else |
| // return 0; |
| // } |
| public void testBranches_Bug342906() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int f() // error |
| // { |
| // switch (g()) { |
| // case 1: h(); break; |
| // case 2: |
| // return 0; |
| // } |
| public void testSwitch() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| //int bar(int foo) |
| //{ |
| // if(foo) |
| // return 0; |
| // else |
| // return 0; |
| //} |
| public void testBranches_Bug343767() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| //int bar(int foo) |
| //{ |
| // if(foo) |
| // return 0; |
| // else |
| // return 0; |
| // foo++; |
| //} |
| public void testBranchesDeadCode_Bug343767() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int f() // error |
| // { |
| // switch (g()) { |
| // case 1: return 1; |
| // case 2: return 0; |
| // } |
| // } |
| public void testBranchesSwitch_Bug343767a() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int f() |
| // { |
| // switch (g()) { |
| // case 1: return 1; |
| // case 2: return 0; |
| // default: return -1; |
| // } |
| // } |
| public void testBranchesSwitch_Bug343767b() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| //int bar(int foo) |
| //{ |
| // if(foo) |
| // return 0; |
| // else |
| // if (g()) return 0; |
| // else return 1; |
| //} |
| public void testBranches2_Bug343767() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| //int bar(int foo) // error |
| //{ |
| // while(foo) { |
| // return 0; |
| // } |
| //} |
| public void testWhile() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int f345687() { |
| // { |
| // return 0; |
| // } |
| // } |
| public void testNextedBlock_Bug345687() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int |
| // fp_goto(int a) |
| // { |
| // if (a) { |
| // goto end; |
| // } |
| // end: |
| // return (a); |
| // } |
| public void testGoto_Bug346559() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int main() |
| // { |
| // char c; // added so function body is non-empty |
| // // no error since return value in main is optional |
| // } |
| public void testMainFunction() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // #include <vector> |
| // std::vector<int> f() { |
| // return {1,2,3}; |
| // } |
| public void testReturnInitializerList() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // void f() __attribute__((noreturn)); |
| // |
| // int test() { |
| // f(); |
| // } |
| public void testNoReturn() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // struct A { |
| // A(); |
| // ~A() __attribute__((noreturn)); |
| // }; |
| // |
| // int test() { |
| // A(); |
| // } |
| public void testNoReturnInDestructor_461538() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int try1() { |
| // try { |
| // return 5; |
| // } catch (...) { |
| // return 5; |
| // } |
| // } |
| public void testTryBlock1() throws Exception { |
| // bug 348387 |
| checkSampleAboveCpp(); |
| } |
| |
| // int try2() { // error |
| // try { |
| // return 5; |
| // } catch (int) { |
| // } |
| // } |
| public void testTryBlock2() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int try3() { // error |
| // try { |
| // } catch (int a) { |
| // return 5; |
| // } |
| // } |
| public void testTryBlock3() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int retindead() { |
| // return 5; |
| // ; |
| // } |
| public void testRetInDeadCode1() throws Exception { |
| // bug 348386 |
| checkSampleAbove(); |
| } |
| |
| // int retindead() { |
| // throw 42; |
| // ; |
| // } |
| public void testRetInDeadCodeThrow() throws Exception { |
| // bug 356908 |
| checkSampleAboveCpp(); |
| } |
| |
| // bool func( int i ) |
| // { |
| // switch( i ) |
| // { |
| // case 0: |
| // return true; |
| // default: |
| // return false; |
| // break; |
| // } |
| // } |
| public void testRetInDeadCodeCase() throws Exception { |
| // Bug 350168 |
| checkSampleAboveCpp(); |
| } |
| |
| // int test1() { |
| // do { |
| // return 1; |
| // } while (0); |
| // } |
| public void testNoRetInfinitLoop() throws Exception { |
| // Bug 394521 |
| checkSampleAbove(); |
| } |
| |
| // int test1_f() // WARNING HERE: "No return, in function returning non-void" |
| // { |
| // while (1) |
| // { |
| // } |
| // } |
| public void testNoRetInfinitLoop2() throws Exception { |
| // Bug 394521 |
| checkSampleAboveCpp(); |
| } |
| |
| // int foo() { // error |
| // int waldo = waldo(); |
| // if (waldo); |
| // } |
| public void testSelfReferencingVariable_452325() throws Exception { |
| // Just check that codan runs without any exceptions being thrown. |
| checkSampleAboveCpp(); |
| } |
| |
| // int bar(int x) { return x; } |
| // int foo() { // error |
| // int waldo = bar(waldo); |
| // if (bar(waldo)); |
| // } |
| public void testSelfReferencingVariable_479638() throws Exception { |
| // Just check that codan runs without any exceptions being thrown. |
| checkSampleAboveCpp(); |
| } |
| |
| // int foo(int x) { // error |
| // switch (x) { |
| // } |
| // } |
| public void testEmptySwitch_455828() throws Exception { |
| checkSampleAbove(); |
| } |
| |
| // int foo(int x) { // error |
| // switch (x) { |
| // case 0: |
| // return 42;; |
| // default: |
| // } |
| // } |
| public void testDoubleSemicolonInSwitchCase_455828() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // auto f() {} |
| public void testReturnTypeDeduction_540112() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // void waldo() { |
| // return 5; // error here on line 2 |
| // } |
| public void testNonTemplateFunctionReturn_509751() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // template <typename T> |
| // void waldoT() { |
| // return 5; // error here on line 3 |
| // } |
| public void testTemplateFunctionReturn_509751a() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // template <typename T> |
| // T waldoT() { |
| // return 5; |
| // } |
| public void testTemplateFunctionReturn_509751b() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // [[noreturn]] void throwMe() { |
| // throw 1; |
| // } |
| // int foo(int bar) { |
| // switch(bar) { |
| // case 0: |
| // return 1; |
| // case 1: |
| // return 0; |
| // default: |
| // throwMe(); |
| // } |
| // } |
| public void testFunctionWithAttribute_519105() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // template <typename T> |
| // [[noreturn]] void foo(const T& e) { |
| // throw e; |
| // } |
| // int bar() { |
| // foo<int>(5); |
| // } |
| public void testTemplateFunctionNoReturn() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| //int foo() { |
| // int errcode = -1; |
| // errcode = 0; |
| // cleanup: |
| // return errcode; |
| // barf: |
| // goto cleanup; |
| //} |
| public void testNoReturnWithGoto_Bug492878() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int& bar() { |
| // int a = 0; |
| // return a; //error here |
| // } |
| public void testReturnByRef_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int* bar() { |
| // int a = 0; |
| // return &a; //error here |
| // } |
| public void testReturnByPtr_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int& bar() { |
| // int a = 0; |
| // return reinterpret_cast<int&>(a); //error here |
| // } |
| public void testReturnByCastRef_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int* bar() { |
| // int a = 0; |
| // return reinterpret_cast<int*>(a); |
| // } |
| public void testReturnByCastPtr_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // int* bar() { |
| // int a = 0, b = 0; |
| // bool cond = true; |
| // return cond ? &a : //error here |
| // &b; //error here |
| // } |
| public void testReturnByTernary_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // struct S { int a; } |
| // int& bar() { |
| // struct S s; |
| // return s.a; //error here |
| // } |
| public void testReturnLocalStructField_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // class Test { |
| // private: |
| // int field; |
| // public: |
| // int& bar() { |
| // return field; |
| // } |
| // } |
| public void testReturnClassField_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| // class Test { |
| // private: |
| // int field; |
| // public: |
| // void foo(double*); |
| // void (Test::*bar())(double*) { |
| // return &Test::foo; |
| // } |
| // } |
| public void testReturnClassMethod_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| //int& foo() { |
| // int* a = new int; |
| // return *a; |
| //} |
| public void testReturnRefUsingDerefPtr_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| |
| //void foo() { |
| // int local; |
| // auto s = [&local]() { |
| // return &local; // ok |
| // }; |
| // int* ptr = s(); |
| //} |
| public void testReturnLambda_Bug546173() throws Exception { |
| checkSampleAboveCpp(); |
| } |
| } |
