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testsimplifyusing.cpp
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1680 lines (1555 loc) · 70.2 KB
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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2025 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "errortypes.h"
#include "fixture.h"
#include "helpers.h"
#include "platform.h"
#include "settings.h"
#include "token.h"
#include "utils.h"
#include <cstddef>
#include <string>
class TestSimplifyUsing : public TestFixture {
public:
TestSimplifyUsing() : TestFixture("TestSimplifyUsing") {}
private:
const Settings settings0 = settingsBuilder().severity(Severity::style).build();
void run() override {
mNewTemplate = true;
TEST_CASE(simplifyUsing1);
TEST_CASE(simplifyUsing2);
TEST_CASE(simplifyUsing3);
TEST_CASE(simplifyUsing4);
TEST_CASE(simplifyUsing5);
TEST_CASE(simplifyUsing6);
TEST_CASE(simplifyUsing7);
TEST_CASE(simplifyUsing8);
TEST_CASE(simplifyUsing9);
TEST_CASE(simplifyUsing10);
TEST_CASE(simplifyUsing11);
TEST_CASE(simplifyUsing12);
TEST_CASE(simplifyUsing13);
TEST_CASE(simplifyUsing14);
TEST_CASE(simplifyUsing15);
TEST_CASE(simplifyUsing16);
TEST_CASE(simplifyUsing17);
TEST_CASE(simplifyUsing18);
TEST_CASE(simplifyUsing19);
TEST_CASE(simplifyUsing20);
TEST_CASE(simplifyUsing21);
TEST_CASE(simplifyUsing22);
TEST_CASE(simplifyUsing23);
TEST_CASE(simplifyUsing24);
TEST_CASE(simplifyUsing25);
TEST_CASE(simplifyUsing26); // #11090
TEST_CASE(simplifyUsing27);
TEST_CASE(simplifyUsing28);
TEST_CASE(simplifyUsing29);
TEST_CASE(simplifyUsing30);
TEST_CASE(simplifyUsing31);
TEST_CASE(simplifyUsing32);
TEST_CASE(simplifyUsing33);
TEST_CASE(simplifyUsing34);
TEST_CASE(simplifyUsing35);
TEST_CASE(simplifyUsing36);
TEST_CASE(simplifyUsing37);
TEST_CASE(simplifyUsing38);
TEST_CASE(simplifyUsing8970);
TEST_CASE(simplifyUsing8971);
TEST_CASE(simplifyUsing8976);
TEST_CASE(simplifyUsing9040);
TEST_CASE(simplifyUsing9042);
TEST_CASE(simplifyUsing9191);
TEST_CASE(simplifyUsing9381);
TEST_CASE(simplifyUsing9385);
TEST_CASE(simplifyUsing9388);
TEST_CASE(simplifyUsing9518);
TEST_CASE(simplifyUsing9757);
TEST_CASE(simplifyUsing10008);
TEST_CASE(simplifyUsing10054);
TEST_CASE(simplifyUsing10136);
TEST_CASE(simplifyUsing10171);
TEST_CASE(simplifyUsing10172);
TEST_CASE(simplifyUsing10173);
TEST_CASE(simplifyUsing10335);
TEST_CASE(simplifyUsing10720);
TEST_CASE(simplifyUsing13873); // function declaration
TEST_CASE(scopeInfo1);
TEST_CASE(scopeInfo2);
}
struct TokOptions
{
Platform::Type type = Platform::Type::Native;
bool debugwarnings = true;
bool preprocess = false;
};
#define tok(...) tok_(__FILE__, __LINE__, __VA_ARGS__)
template<size_t size>
std::string tok_(const char* file, int line, const char (&code)[size], const TokOptions& options = make_default_obj()) {
const Settings settings = settingsBuilder(settings0).certainty(Certainty::inconclusive).debugwarnings(options.debugwarnings).platform(options.type).build();
if (options.preprocess) {
SimpleTokenizer2 tokenizer(settings, *this, code, "test.cpp");
ASSERT_LOC(tokenizer.simplifyTokens1(""), file, line);
return tokenizer.tokens()->stringifyList(nullptr);
}
SimpleTokenizer tokenizer(settings, *this);
ASSERT_LOC(tokenizer.tokenize(code), file, line);
return tokenizer.tokens()->stringifyList(nullptr);
}
void simplifyUsing1() {
const char code[] = "class A\n"
"{\n"
"public:\n"
" using duplicate = wchar_t;\n"
" void foo() {}\n"
"};\n"
"using duplicate = A;\n"
"int main()\n"
"{\n"
" duplicate a;\n"
" a.foo();\n"
" A::duplicate c = 0;\n"
"}";
const char expected[] =
"class A "
"{ "
"public: "
""
"void foo ( ) { } "
"} ; "
"int main ( ) "
"{ "
"A a ; "
"a . foo ( ) ; "
"wchar_t c ; c = 0 ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing2() {
const char code[] = "class A;\n"
"using duplicate = A;\n"
"class A\n"
"{\n"
"public:\n"
"using duplicate = wchar_t;\n"
"duplicate foo() { wchar_t b; return b; }\n"
"};";
const char expected[] =
"class A ; "
"class A "
"{ "
"public: "
""
"wchar_t foo ( ) { wchar_t b ; return b ; } "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing3() {
const char code[] = "class A {};\n"
"using duplicate = A;\n"
"wchar_t foo()\n"
"{\n"
"using duplicate = wchar_t;\n"
"duplicate b;\n"
"return b;\n"
"}\n"
"int main()\n"
"{\n"
"duplicate b;\n"
"}";
const char expected[] =
"class A { } ; "
"wchar_t foo ( ) "
"{ "
""
"wchar_t b ; "
"return b ; "
"} "
"int main ( ) "
"{ "
"A b ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing4() {
const char code[] = "using s32 = int;\n"
"using u32 = unsigned int;\n"
"void f()\n"
"{\n"
" s32 ivar = -2;\n"
" u32 uvar = 2;\n"
" return uvar / ivar;\n"
"}";
const char expected[] =
"void f ( ) "
"{ "
"int ivar ; ivar = -2 ; "
"unsigned int uvar ; uvar = 2 ; "
"return uvar / ivar ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing5() {
const char code[] =
"using YY_BUFFER_STATE = struct yy_buffer_state *;\n"
"void f()\n"
"{\n"
" YY_BUFFER_STATE state;\n"
"}";
const char expected[] =
"void f ( ) "
"{ "
"yy_buffer_state * state ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing6() {
const char code[] =
"namespace VL {\n"
" using float_t = float;\n"
" inline VL::float_t fast_atan2(VL::float_t y, VL::float_t x){}\n"
"}";
const char expected[] =
"namespace VL { "
""
"float fast_atan2 ( float y , float x ) { } "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing7() {
const char code[] = "using abc = int; "
"Fred :: abc f ;";
const char expected[] = "Fred :: abc f ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing8() {
const char code[] = "using INT = int;\n"
"using UINT = unsigned int;\n"
"using PINT = int *;\n"
"using PUINT = unsigned int *;\n"
"using RINT = int &;\n"
"using RUINT = unsigned int &;\n"
"using RCINT = const int &;\n"
"using RCUINT = const unsigned int &;\n"
"INT ti;\n"
"UINT tui;\n"
"PINT tpi;\n"
"PUINT tpui;\n"
"RINT tri;\n"
"RUINT trui;\n"
"RCINT trci;\n"
"RCUINT trcui;";
const char expected[] =
"int ti ; "
"unsigned int tui ; "
"int * tpi ; "
"unsigned int * tpui ; "
"int & tri ; "
"unsigned int & trui ; "
"const int & trci ; "
"const unsigned int & trcui ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing9() {
const char code[] = "using S = struct s;\n"
"using PS = S *;\n"
"using T = struct t { int a; };\n"
"using TP = T *;\n"
"using U = struct { int a; };\n"
"using V = U *;\n"
"using W = struct { int a; } *;\n"
"S s;\n"
"PS ps;\n"
"T t;\n"
"TP tp;\n"
"U u;\n"
"V v;\n"
"W w;";
const char expected[] =
"struct t { int a ; } ; "
"struct U { int a ; } ; "
"struct Unnamed0 { int a ; } ; "
"s s ; "
"s * ps ; "
"t t ; "
"t * tp ; "
"U u ; "
"U * v ; "
"Unnamed0 * w ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing10() {
const char code[] = "using S = union s;\n"
"using PS = S *;\n"
"using T = union t { int a; float b ; };\n"
"using TP = T *;\n"
"using U = union { int a; float b; };\n"
"using V = U *;\n"
"using W = union { int a; float b; } *;\n"
"S s;\n"
"PS ps;\n"
"T t;\n"
"TP tp;\n"
"U u;\n"
"V v;\n"
"W w;";
const char expected[] =
"union t { int a ; float b ; } ; "
"union U { int a ; float b ; } ; "
"union Unnamed0 { int a ; float b ; } ; "
"s s ; "
"s * ps ; "
"t t ; "
"t * tp ; "
"U u ; "
"U * v ; "
"Unnamed0 * w ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing11() {
const char code[] = "using abc = enum { a = 0 , b = 1 , c = 2 };\n"
"using XYZ = enum xyz { x = 0 , y = 1 , z = 2 };\n"
"abc e1;\n"
"XYZ e2;";
const char expected[] = "enum abc { a = 0 , b = 1 , c = 2 } ; "
"enum xyz { x = 0 , y = 1 , z = 2 } ; "
"abc e1 ; "
"xyz e2 ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing12() {
const char code[] = "using V1 = vector<int>;\n"
"using V2 = std::vector<int>;\n"
"using V3 = std::vector<std::vector<int> >;\n"
"using IntListIterator = std::list<int>::iterator;\n"
"V1 v1;\n"
"V2 v2;\n"
"V3 v3;\n"
"IntListIterator iter;";
const char expected[] = "vector < int > v1 ; "
"std :: vector < int > v2 ; "
"std :: vector < std :: vector < int > > v3 ; "
"std :: list < int > :: iterator iter ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing13() {
const char code[] = "using Func = std::pair<int(*)(void*), void*>;\n"
"using CallQueue = std::vector<Func>;\n"
"int main() {\n"
" CallQueue q;\n"
"}";
const char expected[] = "int main ( ) { "
"std :: vector < std :: pair < int ( * ) ( void * ) , void * > > q ; "
"}";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing14() {
const char code[] = "template <typename F, unsigned int N> struct E"
"{"
" using v = E<F,(N>0)?(N-1):0>;"
" using val = typename add<v,v>::val;"
" FP_M(val);"
"};"
"template <typename F> struct E <F,0>"
"{"
" using nal = typename D<1>::val;"
" FP_M(val);"
"};";
TODO_ASSERT_THROW(tok(code, dinit(TokOptions, $.debugwarnings = false)), InternalError); // TODO: Do not throw AST validation exception
//ASSERT_EQUALS("", errout_str());
}
void simplifyUsing15() {
{
const char code[] = "using frame = char [10];\n"
"frame f;";
const char expected[] = "char f [ 10 ] ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "using frame = unsigned char [10];\n"
"frame f;";
const char expected[] = "unsigned char f [ 10 ] ;";
ASSERT_EQUALS(expected, tok(code));
}
}
void simplifyUsing16() {
const char code[] = "using MOT8 = char;\n"
"using CHFOO = MOT8 [4096];\n"
"using STRFOO = struct {\n"
" CHFOO freem;\n"
"};\n"
"STRFOO s;";
const char expected[] = "struct STRFOO { "
"char freem [ 4096 ] ; "
"} ; "
"STRFOO s ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing17() {
const char code[] = "class C1 {};\n"
"using S1 = class S1 {};\n"
"using S2 = class S2 : public C1 {};\n"
"using S3 = class {};\n"
"using S4 = class : public C1 {};\n"
"S1 s1;\n"
"S2 s2;\n"
"S3 s3;\n"
"S4 s4;";
const char expected[] = "class C1 { } ; "
"class S1 { } ; "
"class S2 : public C1 { } ; "
"class S3 { } ; "
"class S4 : public C1 { } ; "
"S1 s1 ; "
"S2 s2 ; "
"S3 s3 ; "
"S4 s4 ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing18() {
const char code[] = "{ { { using a = a; using a; } } }";
(void)tok(code); // don't crash
}
void simplifyUsing19() {
const char code[] = "namespace a {\n"
"using b = int;\n"
"void foo::c() { }\n"
"void foo::d() { }\n"
"void foo::e() {\n"
" using b = float;\n"
"}\n"
"}";
(void)tok(code); // don't hang
ignore_errout(); // we are not interested in the output
}
void simplifyUsing20() {
const char code[] = "namespace a {\n"
"namespace b {\n"
"namespace c {\n"
"namespace d {\n"
"namespace e {\n"
"namespace f {\n"
"namespace g {\n"
"using Changeset = ::IAdaptionCallback::Changeset;\n"
"using EProperty = searches::EProperty;\n"
"using ChangesetValueType = Changeset::value_type;\n"
"namespace {\n"
" template <class T>\n"
" auto modify(std::shared_ptr<T>& p) -> boost::optional<decltype(p->modify())> {\n"
" return nullptr;\n"
" }\n"
" template <class T>\n"
" std::list<T> getValidElements() {\n"
" return nullptr;\n"
" }\n"
"}\n"
"std::shared_ptr<ResourceConfiguration>\n"
"foo::getConfiguration() {\n"
" return nullptr;\n"
"}\n"
"void\n"
"foo::doRegister(const Input & Input) {\n"
" UNUSED( Input );\n"
"}\n"
"foo::MicroServiceReturnValue\n"
"foo::post(SearchesPtr element, const Changeset& changeset)\n"
"{\n"
" using EProperty = ab::ep;\n"
" static std::map<EProperty, std::pair<ElementPropertyHandler, CheckComponentState>> updateHandlers =\n"
" {\n"
" {EProperty::Needle, {&RSISearchesResource::updateNeedle, &RSISearchesResource::isSearcherReady}},\n"
" {EProperty::SortBy, {&RSISearchesResource::updateResultsSorting, &RSISearchesResource::isSearcherReady}}\n"
" };\n"
" return nullptr;\n"
"}\n"
"}}}}}}}";
(void)tok(code); // don't hang
ignore_errout(); // we do not care about the output
}
void simplifyUsing21() {
const char code[] = "using a = b;\n"
"enum {}";
(void)tok(code); // don't crash
}
void simplifyUsing22() {
const char code[] = "namespace aa { namespace bb { namespace cc { namespace dd { namespace ee {\n"
"class fff {\n"
"public:\n"
" using icmsp = std::shared_ptr<aa::bb::ee::cm::api::icm>;\n"
"private:\n"
" using Connection = boost::signals2::connection;\n"
" using ESdk = sdk::common::api::Sdk::ESdk;\n"
" using co = aa::bb::ee::com::api::com2;\n"
"};\n"
"fff::fff() : m_icm(icm) {\n"
" using ESdk = aa::bb::sdk::common::api::Sdk::ESdk;\n"
"}\n"
"}}}}}";
const char expected[] = "namespace aa { namespace bb { namespace cc { namespace dd { namespace ee { "
"class fff { "
"public: "
"private: "
"} ; "
"fff :: fff ( ) : m_icm ( icm ) { "
"} "
"} } } } }";
ASSERT_EQUALS(expected, tok(code)); // don't hang
ignore_errout(); // we do not care about the output
}
void simplifyUsing23() {
const char code[] = "class cmcch {\n"
"public:\n"
" cmcch(icmsp const& icm, Rtnf&& rtnf = {});\n"
"private:\n"
" using escs = aa::bb::cc::dd::ee;\n"
"private:\n"
" icmsp m_icm;\n"
" mutable std::atomic<rt> m_rt;\n"
"};\n"
"cmcch::cmcch(cmcch::icmsp const& icm, Rtnf&& rtnf)\n"
" : m_icm(icm)\n"
" , m_rt{rt::UNKNOWN_} {\n"
" using escs = yy::zz::aa::bb::cc::dd::ee;\n"
"}";
const char expected[] = "class cmcch { "
"public: "
"cmcch ( const icmsp & icm , Rtnf && rtnf = { } ) ; "
"private: "
"private: "
"icmsp m_icm ; "
"mutable std :: atomic < rt > m_rt ; "
"} ; "
"cmcch :: cmcch ( const cmcch :: icmsp & icm , Rtnf && rtnf ) "
": m_icm ( icm ) "
", m_rt { rt :: UNKNOWN_ } { "
"}";
ASSERT_EQUALS(expected, tok(code)); // don't hang
}
void simplifyUsing24() {
const char code[] = "using value_type = const ValueFlow::Value;\n"
"value_type vt;";
const char expected[] = "const ValueFlow :: Value vt ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing25() {
const char code[] = "struct UnusualType {\n"
" using T = vtkm::Id;\n"
" T X;\n"
"};\n"
"namespace vtkm {\n"
"template <>\n"
"struct VecTraits<UnusualType> : VecTraits<UnusualType::T> { };\n"
"}";
const char expected[] = "struct UnusualType { "
"vtkm :: Id X ; "
"} ; "
"namespace vtkm { "
"struct VecTraits<UnusualType> : VecTraits < vtkm :: Id > { } ; "
"}";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing26() { // #11090
const char code[] = "namespace M {\n"
" struct A;\n"
" struct B;\n"
" struct C;\n"
" template<typename T>\n"
" struct F {};\n"
" template<>\n"
" struct F<B> : F<A> {};\n"
" template<>\n"
" struct F<C> : F<A> {};\n"
"}\n"
"namespace N {\n"
" using namespace M;\n"
" using A = void;\n"
"}\n";
const char expected[] = "namespace M { "
"struct A ; struct B ; struct C ; "
"struct F<C> ; struct F<B> ; struct F<A> ; "
"struct F<B> : F<A> { } ; struct F<C> : F<A> { } ; "
"} "
"namespace N { "
"using namespace M ; "
"} "
"struct M :: F<A> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing27() { // #11670
const char code[] = "namespace N {\n"
" template <class T>\n"
" struct S {\n"
" using iterator = T*;\n"
" iterator begin();\n"
" };\n"
"}\n"
"using I = N::S<int>;\n"
"void f() {\n"
" I::iterator iter;\n"
"}\n";
const char expected[] = "namespace N { struct S<int> ; } "
"void f ( ) { int * iter ; } "
"struct N :: S<int> { int * begin ( ) ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing28() { // #11795
const char code[] = "void f() {\n"
" using T = int;\n"
" T* p{ new T };\n"
"}\n";
const char expected[] = "void f ( ) { int * p { new int } ; }";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing29() { // #11981
const char code[] = "using T = int*;\n"
"void f(T = T()) {}\n";
const char expected[] = "void f ( int * = ( int * ) 0 ) { }";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing30() {
{
const char code[] = "using std::to_string;\n" // #8454
"void f() {\n"
" std::string str = to_string(1);\n"
"}\n";
const char expected[] = "void f ( ) { std :: string str ; str = std :: to_string ( 1 ) ; }";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
{
const char code[] = "using std::cout, std::endl, std::cerr, std::ostringstream;\n"
"cerr << \"abc\";\n";
const char expected[] = "std :: cerr << \"abc\" ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
{
const char code[] = "using std::string_view_literals::operator\"\"sv;\n";
const char expected[] = "using std :: string_view_literals :: operator\"\"sv ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
{
const char code[] = "template <typename T>\n"
"class vector : public ::std::vector<T> {\n"
"public:\n"
" using ::std::vector<T>::vector;\n"
" vector() {}\n"
"};\n"
"vector <int> v;\n";
const char expected[] = "class vector<int> ; "
"vector<int> v ; "
"class vector<int> : public :: std :: vector<int> { "
"public: "
"using vector<int> = :: std :: vector<int> :: vector<int> ; "
"vector<int> ( ) { } "
"} ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
{
const char code[] = "using namespace ::std;\n"
"void f(const char* c) {\n"
" cout << std::string(c) << \"abc\";\n"
"}\n";
const char expected[] = "using namespace :: std ; " // TODO: simplify cout?
"void f ( const char * c ) { "
"cout << std :: string ( c ) << \"abc\" ; "
"}";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS(
"[test.cpp:3:5]: (debug) valueFlowConditionExpressions bailout: Skipping function due to incomplete variable cout [valueFlowBailoutIncompleteVar]\n",
errout_str());
}
{
const char code[] = "class T : private std::vector<std::pair<std::string, const int*>> {\n" // #12521
" using std::vector<std::pair<std::string, const int*>>::empty;\n"
"};\n";
const char expected[] = "class T : private std :: vector < std :: pair < std :: string , const int * > > { "
"using empty = std :: vector < std :: pair < std :: string , const int * > > :: empty ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
}
void simplifyUsing31() { // #11899
const char code[] = "struct B {\n"
" B();\n"
" void f();\n"
"};\n"
"struct D : B {\n"
" using B::B;\n"
" void g() {\n"
" B::f();\n"
" }\n"
" B b;\n"
"};\n";
const char expected[] = "struct B { "
"B ( ) ; "
"void f ( ) ; "
"} ; "
"struct D : B { "
"using B = B :: B ; "
"void g ( ) { "
"B :: f ( ) ; "
"} "
"B b ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing32() {
const char code[] = "using T = int*;\n" // #11430
"T f() { return T{}; }\n"
"T g() { return T(malloc(4)); }\n";
const char expected[] = "int * f ( ) { return ( int * ) 0 ; } "
"int * g ( ) { return ( int * ) ( malloc ( 4 ) ) ; }";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
const char code2[] = "struct S {\n" // #13095
" using reference_type = int&;\n"
" reference_type get();\n"
" int i;\n"
"};\n"
"auto S::get() -> reference_type {\n"
" return i;\n"
"}\n";
const char expected2[] = "struct S { "
"int & get ( ) ; "
"int i ; "
"} ; "
"auto S :: get ( ) . int & { return i ; }";
ASSERT_EQUALS(expected2, tok(code2));
TODO_ASSERT_EQUALS("",
"[test.cpp:6:1]: (debug) auto token with no type. [autoNoType]\n"
"", errout_str());
const char code3[] = "using V = int*;\n"
"auto g() -> const volatile V { return {}; }\n";
const char expected3[] = "auto g ( ) . const volatile int * { return { } ; }";
ASSERT_EQUALS(expected3, tok(code3));
TODO_ASSERT_EQUALS("",
"[test.cpp:2:1]: (debug) auto token with no type. [autoNoType]\n"
"", errout_str());
}
void simplifyUsing33() { // #13090
const char code[] = "namespace N {\n"
" using T = int;\n"
" T f() { return (T)0; }\n"
"}\n"
"struct S {\n"
" using U = int;\n"
" U g() { return (U)0; }\n"
"};\n";
const char expected[] = "namespace N { "
"int f ( ) { return ( int ) 0 ; } "
"} "
"struct S { "
"int g ( ) { return ( int ) 0 ; } "
"} ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing34() { // #13295
const char code[] = "struct A {\n"
" static const int a = 1;\n"
"};\n"
"using B = struct A;\n"
"void g(int);\n"
"void f() {\n"
" g({ B::a });\n"
"}\n";
const char expected[] = "struct A { "
"static const int a = 1 ; "
"} ; "
"void g ( int ) ; "
"void f ( ) { "
"g ( { A :: a } ) ; "
"}";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing35() { // #13492
const char code[] = "using a = b;\n"
"using c = d;\n";
const char expected[] = ";";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing36() {
const char code[] = "using A::a;\n"
"int c = B<int>::a;\n";
const char expected[] = "int c ; c = B < int > :: a ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing37() {
const char code1[] = "using fp1_t = int(*)(int);\n"
"using fp2_t = int(* const)(int);\n"
"fp1_t fp1;\n"
"fp2_t fp2;\n";
const char expected1[] = "int ( * fp1 ) ( int ) ; int ( * const fp2 ) ( int ) ;";
ASSERT_EQUALS(expected1, tok(code1));
ASSERT_EQUALS("", errout_str());
const char code2[] = "using f_t = int(int);\n"
"f_t* fp1;\n"
"f_t* const fp2;\n";
const char expected2[] = "int ( * fp1 ) ( int ) ; int ( * const fp2 ) ( int ) ;";
ASSERT_EQUALS(expected2, tok(code2));
ASSERT_EQUALS("", errout_str());
const char code3[] = "using FP = std::string (*)();\n" // #14421
"using FPC = std::string (*const)();\n"
"FP fp;\n"
"FPC fpc{};\n";
const char expected3[] = "std :: string ( * fp ) ( ) ; std :: string ( * const fpc ) ( ) { } ;";
ASSERT_EQUALS(expected3, tok(code3));
ASSERT_EQUALS("", errout_str());
const char code4[] = "using F = void(*)(char);\n" // #14429
"F f(int);\n";
const char expected4[] = "void * f ( char ) ;";
ASSERT_EQUALS(expected4, tok(code4));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing38() {
const char code[] = "using std::begin;\n" // #14424
"using std::end;\n"
"Unknown begin;\n"
"int end;\n";
const char expected[] = "Unknown begin ; int end ;";
ASSERT_EQUALS(expected, tok(code));
ASSERT_EQUALS("", errout_str());
}
void simplifyUsing8970() {
const char code[] = "using V = std::vector<int>;\n"
"struct A {\n"
" V p;\n"
"};";
const char expected[] = "struct A { "
"std :: vector < int > p ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing8971() {
const char code[] = "class A {\n"
"public:\n"
" using V = std::vector<double>;\n"
"};\n"
"using V = std::vector<int>;\n"
"class I {\n"
"private:\n"
" A::V v_;\n"
" V v2_;\n"
"};";
const char expected[] = "class A { "
"public: "
"} ; "
"class I { "
"private: "
"std :: vector < double > v_ ; "
"std :: vector < int > v2_ ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void simplifyUsing8976() {
const char code[] = "using mystring = std::string;";
const char exp[] = ";";
ASSERT_EQUALS(exp, tok(code));
}
void simplifyUsing9040() {
const char code[] = "using BOOL = unsigned; int i;";
const char exp[] = "int i ;";
ASSERT_EQUALS(exp, tok(code, dinit(TokOptions, $.type = Platform::Unix32)));
ASSERT_EQUALS(exp, tok(code, dinit(TokOptions, $.type = Platform::Unix64)));
ASSERT_EQUALS(exp, tok(code, dinit(TokOptions, $.type = Platform::Win32A)));
ASSERT_EQUALS(exp, tok(code, dinit(TokOptions, $.type = Platform::Win32W)));
ASSERT_EQUALS(exp, tok(code, dinit(TokOptions, $.type = Platform::Win64)));
}
void simplifyUsing9042() {
const char code[] = "template <class T>\n"
"class c {\n"
" int i = 0;\n"
" c() { i--; }\n"
"};\n"
"template <class T>\n"
"class s {};\n"
"using BOOL = char;";
const char exp[] = "template < class T > "
"class c { "
"int i ; i = 0 ; "
"c ( ) { i -- ; } "
"} ; "
"template < class T > class s { } ;";