418 lines
14 KiB
C++
418 lines
14 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2019 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "platform.h"
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#include "settings.h"
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#include "testsuite.h"
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#include "token.h"
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#include "tokenize.h"
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#include "tokenlist.h"
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struct InternalError;
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class TestSimplifyUsing : public TestFixture {
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public:
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TestSimplifyUsing() : TestFixture("TestSimplifyUsing") {
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}
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private:
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Settings settings0;
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Settings settings1;
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Settings settings2;
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void run() OVERRIDE {
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settings0.addEnabled("style");
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settings2.addEnabled("style");
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TEST_CASE(simplifyUsing1);
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TEST_CASE(simplifyUsing2);
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TEST_CASE(simplifyUsing3);
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TEST_CASE(simplifyUsing4);
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TEST_CASE(simplifyUsing5);
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TEST_CASE(simplifyUsing6);
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TEST_CASE(simplifyUsing7);
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TEST_CASE(simplifyUsing8);
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TEST_CASE(simplifyUsing9);
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TEST_CASE(simplifyUsing10);
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TEST_CASE(simplifyUsing11);
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TEST_CASE(simplifyUsing12);
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TEST_CASE(simplifyUsing13);
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TEST_CASE(simplifyUsing14);
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TEST_CASE(simplifyUsing15);
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TEST_CASE(simplifyUsing16);
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}
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std::string tok(const char code[], bool simplify = true, Settings::PlatformType type = Settings::Native, bool debugwarnings = true) {
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errout.str("");
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settings0.inconclusive = true;
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settings0.debugwarnings = debugwarnings;
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settings0.platform(type);
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Tokenizer tokenizer(&settings0, this);
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std::istringstream istr(code);
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tokenizer.tokenize(istr, "test.cpp");
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if (simplify)
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tokenizer.simplifyTokenList2();
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return tokenizer.tokens()->stringifyList(0, !simplify);
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}
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void simplifyUsing1() {
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const char code[] = "class A\n"
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"{\n"
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"public:\n"
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" using duplicate = wchar_t;\n"
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" void foo() {}\n"
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"};\n"
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"using duplicate = A;\n"
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"int main()\n"
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"{\n"
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" duplicate a;\n"
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" a.foo();\n"
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" A::duplicate c = 0;\n"
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"}";
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const char expected[] =
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"class A "
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"{ "
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"public: "
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""
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"void foo ( ) { } "
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"} ; "
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"int main ( ) "
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"{ "
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"A a ; "
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"a . foo ( ) ; "
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"wchar_t c ; c = 0 ; "
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"}";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing2() {
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const char code[] = "class A;\n"
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"using duplicate = A;\n"
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"class A\n"
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"{\n"
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"public:\n"
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"using duplicate = wchar_t;\n"
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"duplicate foo() { wchar_t b; return b; }\n"
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"};";
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const char expected[] =
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"class A ; "
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"class A "
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"{ "
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"public: "
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""
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"wchar_t foo ( ) { wchar_t b ; return b ; } "
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"} ;";
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ASSERT_EQUALS(expected, tok(code));
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}
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void simplifyUsing3() {
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const char code[] = "class A {};\n"
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"using duplicate = A;\n"
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"wchar_t foo()\n"
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"{\n"
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"using duplicate = wchar_t;\n"
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"duplicate b;\n"
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"return b;\n"
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"}\n"
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"int main()\n"
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"{\n"
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"duplicate b;\n"
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"}";
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const char expected[] =
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"class A { } ; "
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"wchar_t foo ( ) "
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"{ "
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""
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"wchar_t b ; "
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"return b ; "
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"} "
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"int main ( ) "
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"{ "
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"A b ; "
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"}";
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ASSERT_EQUALS(expected, tok(code));
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}
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void simplifyUsing4() {
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const char code[] = "using s32 = int;\n"
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"using u32 = unsigned int;\n"
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"void f()\n"
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"{\n"
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" s32 ivar = -2;\n"
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" u32 uvar = 2;\n"
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" return uvar / ivar;\n"
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"}";
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const char expected[] =
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"void f ( ) "
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"{ "
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"int ivar ; ivar = -2 ; "
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"unsigned int uvar ; uvar = 2 ; "
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"return uvar / ivar ; "
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"}";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing5() {
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const char code[] =
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"using YY_BUFFER_STATE = struct yy_buffer_state *;\n"
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"void f()\n"
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"{\n"
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" YY_BUFFER_STATE state;\n"
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"}";
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const char expected[] =
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"void f ( ) "
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"{ "
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"struct yy_buffer_state * state ; "
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"}";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing6() {
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const char code[] =
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"namespace VL {\n"
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" using float_t = float;\n"
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" inline VL::float_t fast_atan2(VL::float_t y, VL::float_t x){}\n"
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"}";
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const char expected[] =
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"namespace VL { "
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""
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"float fast_atan2 ( float y , float x ) { } "
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"}";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing7() {
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const char code[] = "using abc = int; "
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"Fred :: abc f ;";
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const char expected[] = "Fred :: abc f ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing8() {
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const char code[] = "using INT = int;\n"
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"using UINT = unsigned int;\n"
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"using PINT = int *;\n"
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"using PUINT = unsigned int *;\n"
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"using RINT = int &;\n"
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"using RUINT = unsigned int &;\n"
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"using RCINT = const int &;\n"
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"using RCUINT = const unsigned int &;\n"
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"INT ti;\n"
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"UINT tui;\n"
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"PINT tpi;\n"
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"PUINT tpui;\n"
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"RINT tri;\n"
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"RUINT trui;\n"
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"RCINT trci;\n"
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"RCUINT trcui;";
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const char expected[] =
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"int ti ; "
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"unsigned int tui ; "
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"int * tpi ; "
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"unsigned int * tpui ; "
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"int & tri ; "
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"unsigned int & trui ; "
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"const int & trci ; "
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"const unsigned int & trcui ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing9() {
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const char code[] = "using S = struct s;\n"
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"using PS = S *;\n"
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"using T = struct t { int a; };\n"
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"using TP = T *;\n"
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"using U = struct { int a; };\n"
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"using V = U *;\n"
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"using W = struct { int a; } *;\n"
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"S s;\n"
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"PS ps;\n"
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"T t;\n"
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"TP tp;\n"
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"U u;\n"
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"V v;\n"
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"W w;";
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const char expected[] =
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"struct t { int a ; } ; "
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"struct U { int a ; } ; "
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"struct Unnamed0 { int a ; } ; "
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"struct s s ; "
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"struct s * ps ; "
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"struct t t ; "
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"struct t * tp ; "
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"struct U u ; "
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"struct U * v ; "
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"struct Unnamed0 * w ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing10() {
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const char code[] = "using S = union s;\n"
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"using PS = S *;\n"
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"using T = union t { int a; float b ; };\n"
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"using TP = T *;\n"
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"using U = union { int a; float b; };\n"
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"using V = U *;\n"
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"using W = union { int a; float b; } *;\n"
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"S s;\n"
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"PS ps;\n"
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"T t;\n"
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"TP tp;\n"
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"U u;\n"
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"V v;\n"
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"W w;";
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const char expected[] =
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"union t { int a ; float b ; } ; "
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"union U { int a ; float b ; } ; "
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"union Unnamed0 { int a ; float b ; } ; "
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"union s s ; "
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"union s * ps ; "
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"union t t ; "
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"union t * tp ; "
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"union U u ; "
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"union U * v ; "
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"union Unnamed0 * w ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing11() {
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const char code[] = "using abc = enum { a = 0 , b = 1 , c = 2 };\n"
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"using XYZ = enum xyz { x = 0 , y = 1 , z = 2 };\n"
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"abc e1;\n"
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"XYZ e2;";
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const char expected[] = "enum abc { a = 0 , b = 1 , c = 2 } ; "
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"enum xyz { x = 0 , y = 1 , z = 2 } ; "
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"enum abc e1 ; "
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"enum xyz e2 ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing12() {
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const char code[] = "using V1 = vector<int>;\n"
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"using V2 = std::vector<int>;\n"
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"using V3 = std::vector<std::vector<int> >;\n"
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"using IntListIterator = std::list<int>::iterator;\n"
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"V1 v1;\n"
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"V2 v2;\n"
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"V3 v3;\n"
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"IntListIterator iter;";
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const char expected[] = "vector < int > v1 ; "
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"std :: vector < int > v2 ; "
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"std :: vector < std :: vector < int > > v3 ; "
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"std :: list < int > :: iterator iter ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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void simplifyUsing13() {
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const char code[] = "using Func = std::pair<int(*)(void*), void*>;\n"
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"using CallQueue = std::vector<Func>;\n"
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"int main() {\n"
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" CallQueue q;\n"
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"}";
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const char expected[] = "int main ( ) { "
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"std :: vector < std :: pair < int ( * ) ( void * ) , void * > > q ; "
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"}";
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ASSERT_EQUALS(expected, tok(code, false));
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ASSERT_EQUALS("", errout.str());
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}
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void simplifyUsing14() {
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const char code[] = "template <typename F, unsigned int N> struct E"
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"{"
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" using v = E<F,(N>0)?(N-1):0>;"
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" using val = typename add<v,v>::val;"
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" FP_M(val);"
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"};"
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"template <typename F> struct E <F,0>"
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"{"
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" using nal = typename D<1>::val;"
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" FP_M(val);"
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"};";
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tok(code, true, Settings::Native, false);
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ASSERT_EQUALS("", errout.str());
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}
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void simplifyUsing15() {
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{
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const char code[] = "using frame = char [10];\n"
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"frame f;";
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const char expected[] = "char f [ 10 ] ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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{
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const char code[] = "using frame = unsigned char [10];\n"
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"frame f;";
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const char expected[] = "unsigned char f [ 10 ] ;";
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ASSERT_EQUALS(expected, tok(code, false));
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}
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}
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void simplifyUsing16() {
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const char code[] = "using MOT8 = char;\n"
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"using CHFOO = MOT8 [4096];\n"
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"using STRFOO = struct {\n"
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" CHFOO freem;\n"
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"};\n"
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"STRFOO s;";
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const char expected[] = "struct STRFOO { "
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"char freem [ 4096 ] ; "
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"} ; "
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"struct STRFOO s ;";
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ASSERT_EQUALS(expected, tok(code, false));
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ASSERT_EQUALS("", errout.str());
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}
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};
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REGISTER_TEST(TestSimplifyUsing)
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