/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2018 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 "config.h"
#include "platform.h"
#include "settings.h"
#include "templatesimplifier.h"
#include "testsuite.h"
#include "token.h"
#include "tokenize.h"
struct InternalError;
class TestSimplifyTemplate : public TestFixture {
public:
TestSimplifyTemplate() : TestFixture("TestSimplifyTemplate") {
}
private:
Settings settings;
void run() override {
settings.addEnabled("portability");
TEST_CASE(template1);
TEST_CASE(template2);
TEST_CASE(template3);
TEST_CASE(template4);
TEST_CASE(template5);
TEST_CASE(template6);
TEST_CASE(template7);
TEST_CASE(template8);
TEST_CASE(template9);
TEST_CASE(template10);
TEST_CASE(template11);
TEST_CASE(template12);
TEST_CASE(template13);
TEST_CASE(template14);
TEST_CASE(template15); // recursive templates
TEST_CASE(template16);
TEST_CASE(template17);
TEST_CASE(template18);
TEST_CASE(template19);
TEST_CASE(template20);
TEST_CASE(template21);
TEST_CASE(template22);
TEST_CASE(template23);
TEST_CASE(template24); // #2648 - using sizeof in template parameter
TEST_CASE(template25); // #2648 - another test for sizeof template parameter
TEST_CASE(template26); // #2721 - passing 'char[2]' as template parameter
TEST_CASE(template27); // #3350 - removing unused template in macro call
TEST_CASE(template28);
TEST_CASE(template30); // #3529 - template < template < ..
TEST_CASE(template31); // #4010 - reference type
TEST_CASE(template32); // #3818 - mismatching template not handled well
TEST_CASE(template33); // #3818,#4544 - inner templates in template instantiation not handled well
TEST_CASE(template34); // #3706 - namespace => hang
TEST_CASE(template35); // #4074 - A<'x'> a;
TEST_CASE(template36); // #4310 - passing unknown template instantiation as template argument
TEST_CASE(template37); // #4544 - A<class B> a;
TEST_CASE(template38); // #4832 - crash on C++11 right angle brackets
TEST_CASE(template39); // #4742 - freeze
TEST_CASE(template40); // #5055 - template specialization outside struct
TEST_CASE(template41); // #4710 - const in instantiation not handled perfectly
TEST_CASE(template42); // #4878 - variadic templates
TEST_CASE(template43); // #5097 - assert due to '>>' not treated as end of template instantiation
TEST_CASE(template44); // #5297 - TemplateSimplifier::simplifyCalculations not eager enough
TEST_CASE(template45); // #5814 - syntax error reported for valid code
TEST_CASE(template46); // #5816 - syntax error reported for valid code
TEST_CASE(template47); // #6023 - syntax error reported for valid code
TEST_CASE(template48); // #6134 - 100% CPU upon invalid code
TEST_CASE(template49); // #6237 - template instantiation
TEST_CASE(template50); // #4272 - simple partial specialization
TEST_CASE(template51); // #6172 - crash upon valid code
TEST_CASE(template52); // #6437 - crash upon valid code
TEST_CASE(template53); // #4335 - bail out for valid code
TEST_CASE(template54); // #6587 - memory corruption upon valid code
TEST_CASE(template55); // #6604 - simplify "const const" to "const" in template instantiations
TEST_CASE(template56); // #7117 - const ternary operator simplification as template parameter
TEST_CASE(template57); // #7891
TEST_CASE(template58); // #6021 - use after free (deleted tokens in simplifyCalculations)
TEST_CASE(template59); // #8051 - TemplateSimplifier::simplifyTemplateInstantiation failure
TEST_CASE(template60); // handling of methods outside template definition
TEST_CASE(template61); // daca2, kodi
TEST_CASE(template62); // #8314 - inner template instantiation
TEST_CASE(template63); // #8576 - qualified type
TEST_CASE(template64); // #8683
TEST_CASE(template65); // #8321
TEST_CASE(template66); // #8725
TEST_CASE(template67); // #8122
TEST_CASE(template68); // union
TEST_CASE(template69); // #8791
TEST_CASE(template70); // #5289
TEST_CASE(template71); // #8821
TEST_CASE(template72);
TEST_CASE(template73);
TEST_CASE(template74);
TEST_CASE(template75);
TEST_CASE(template76);
TEST_CASE(template77);
TEST_CASE(template78);
TEST_CASE(template79); // #5133
TEST_CASE(template80);
TEST_CASE(template81);
TEST_CASE(template82); // 8603
TEST_CASE(template_specialization_1); // #7868 - template specialization template <typename T> struct S<C<T>> {..};
TEST_CASE(template_specialization_2); // #7868 - template specialization template <typename T> struct S<C<T>> {..};
TEST_CASE(template_enum); // #6299 Syntax error in complex enum declaration (including template)
TEST_CASE(template_unhandled);
TEST_CASE(template_default_parameter);
TEST_CASE(template_forward_declared_default_parameter);
TEST_CASE(template_default_type);
TEST_CASE(template_typename);
TEST_CASE(template_constructor); // #3152 - template constructor is removed
TEST_CASE(syntax_error_templates_1);
TEST_CASE(template_member_ptr); // Ticket #5786 - crash upon valid code
TEST_CASE(template_namespace_1);
TEST_CASE(template_namespace_2);
TEST_CASE(template_namespace_3);
TEST_CASE(template_namespace_4);
TEST_CASE(template_namespace_5);
TEST_CASE(template_namespace_6);
TEST_CASE(template_namespace_7); // #8768
TEST_CASE(template_namespace_8);
TEST_CASE(template_namespace_9);
TEST_CASE(template_namespace_10);
TEST_CASE(template_namespace_11); // #7145
// Test TemplateSimplifier::templateParameters
TEST_CASE(templateParameters);
TEST_CASE(templateNamePosition);
TEST_CASE(expandSpecialized1);
TEST_CASE(expandSpecialized2);
TEST_CASE(expandSpecialized3); // #8671
TEST_CASE(expandSpecialized4);
TEST_CASE(templateAlias1);
TEST_CASE(templateAlias2);
TEST_CASE(templateAlias3); // #8315
// Test TemplateSimplifier::instantiateMatch
TEST_CASE(instantiateMatch);
TEST_CASE(templateParameterWithoutName); // #8602 Template default parameter without name yields syntax error
}
std::string tok(const char code[], bool simplify = true, bool debugwarnings = false, Settings::PlatformType type = Settings::Native) {
errout.str("");
settings.debugwarnings = debugwarnings;
settings.platform(type);
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
if (simplify)
tokenizer.simplifyTokenList2();
return tokenizer.tokens()->stringifyList(0, !simplify);
}
std::string tok(const char code[], const char filename[]) {
errout.str("");
settings.debugwarnings = false;
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, filename);
tokenizer.simplifyTokenList2();
return tokenizer.tokens()->stringifyList(0, false);
}
void template1() {
const char code[] = "template <class T> void f(T val) { T a; }\n"
"f<int>(10);";
const char expected[] = "void f<int> ( int val ) ; "
"f<int> ( 10 ) ; "
"void f<int> ( int val ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template2() {
const char code[] = "template <class T> class Fred { T a; };\n"
"Fred<int> fred;";
const char expected[] = "class Fred<int> ; "
"Fred<int> fred ; "
"class Fred<int> { int a ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template3() {
const char code[] = "template <class T, int sz> class Fred { T data[sz]; };\n"
"Fred<float,4> fred;";
const char expected[] = "class Fred<float,4> ; "
"Fred<float,4> fred ; "
"class Fred<float,4> { float data [ 4 ] ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template4() {
const char code[] = "template <class T> class Fred { Fred(); };\n"
"Fred<float> fred;";
const char expected[] = "class Fred<float> ; "
"Fred<float> fred ; "
"class Fred<float> { Fred<float> ( ) ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template5() {
const char code[] = "template <class T> class Fred { };\n"
"template <class T> Fred<T>::Fred() { }\n"
"Fred<float> fred;";
const char expected[] = "class Fred<float> ; "
"Fred<float> fred ; "
"class Fred<float> { } ; "
"Fred<float> :: Fred<float> ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template6() {
const char code[] = "template <class T> class Fred { };\n"
"Fred<float> fred1;\n"
"Fred<float> fred2;";
const char expected[] = "class Fred<float> ; "
"Fred<float> fred1 ; "
"Fred<float> fred2 ; "
"class Fred<float> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template7() {
// A template class that is not used => no simplification
{
const char code[] = "template <class T>\n"
"class ABC\n"
"{\n"
"public:\n"
" typedef ABC<T> m;\n"
"};\n";
const char expected[] = "template < class T > class ABC { public: } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <typename T> class ABC {\n"
"public:\n"
" typedef std::vector<T> type;\n"
"};\n"
"int main() {\n"
" ABC<int>::type v;\n"
" v.push_back(4);\n"
" return 0;\n"
"}\n";
const char wanted[] = "template < typename T > class ABC { public: } ; "
"int main ( ) { "
"std :: vector < int > v ; "
"v . push_back ( 4 ) ; "
"return 0 ; "
"}";
const char current[] = "template < typename T > class ABC { public: } ; "
"int main ( ) { "
"ABC < int > :: type v ; "
"v . push_back ( 4 ) ; "
"return 0 ; "
"}";
TODO_ASSERT_EQUALS(wanted, current, tok(code));
}
{
const char code[] = "template <typename T> class ABC {\n"
"public:\n"
" typedef std::vector<T> type;\n"
" void f()\n"
" {\n"
" ABC<int>::type v;\n"
" v.push_back(4);\n"
" }\n"
"};\n";
const char expected[] = "template < typename T > class ABC { "
"public: void f ( ) { "
"ABC < int > :: type v ; "
"v . push_back ( 4 ) ; "
"} "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
}
// Template definitions but no usage => no expansion
void template8() {
const char code[] = "template<typename T> class A;\n"
"template<typename T> class B;\n"
"\n"
"typedef A<int> x;\n"
"typedef B<int> y;\n"
"\n"
"template<typename T> class A {\n"
" void f() {\n"
" B<T> a = B<T>::g();\n"
" T b = 0;\n"
" if (b)\n"
" b = 0;\n"
" }\n"
"};\n"
"\n"
"template<typename T> inline B<T> h() { return B<T>(); }\n";
ASSERT_EQUALS("template < typename T > class A ; "
"template < typename T > class B ; "
"template < typename T > class A { void f ( ) { B < T > a ; a = B < T > :: g ( ) ; T b ; b = 0 ; } } ; "
"template < typename T > B < T > h ( ) { return B < T > ( ) ; }", tok(code));
ASSERT_EQUALS("class A { template < typename T > int foo ( T d ) ; } ;", tok("class A{ template<typename T> int foo(T d);};"));
}
void template9() {
const char code[] = "template < typename T > class A { } ;\n"
"\n"
"void f ( ) {\n"
" A < int > a ;\n"
"}\n"
"\n"
"template < typename T >\n"
"class B {\n"
" void g ( ) {\n"
" A < T > b = A < T > :: h ( ) ;\n"
" }\n"
"} ;\n";
// The expected result..
const char expected[] = "class A<int> ; "
"void f ( ) { A<int> a ; } "
"template < typename T > class B { void g ( ) { A < T > b ; b = A < T > :: h ( ) ; } } ; "
"class A<int> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template10() {
const char code[] = "template <int ui, typename T> T * foo()\n"
"{ return new T[ui]; }\n"
"\n"
"void f ( )\n"
"{\n"
" foo<3,int>();\n"
"}\n";
// The expected result..
const char expected[] = "int * foo<3,int> ( ) ; "
"void f ( ) "
"{"
" foo<3,int> ( ) ; "
"} "
"int * foo<3,int> ( ) { return new int [ 3 ] ; }";
ASSERT_EQUALS(expected, tok(code));
}
void template11() {
const char code[] = "template <int ui, typename T> T * foo()\n"
"{ return new T[ui]; }\n"
"\n"
"void f ( )\n"
"{\n"
" char * p = foo<3,char>();\n"
"}\n";
// The expected result..
const char expected[] = "char * foo<3,char> ( ) ; "
"void f ( ) "
"{"
" char * p ; p = foo<3,char> ( ) ; "
"} "
"char * foo<3,char> ( ) { return new char [ 3 ] ; }";
ASSERT_EQUALS(expected, tok(code));
}
void template12() {
const char code[] = "template <int x, int y, int z>\n"
"class A : public B<x, y, (x - y) ? ((y < z) ? 1 : -1) : 0>\n"
"{ };\n"
"\n"
"void f()\n"
"{\n"
" A<12,12,11> a;\n"
"}\n";
// The expected result..
const char expected[] = "class A<12,12,11> ; "
"void f ( ) "
"{"
" A<12,12,11> a ; "
"} "
"class A<12,12,11> : public B < 12 , 12 , 0 > "
"{ } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template13() {
const char code[] = "class BB {};\n"
"\n"
"template <class T>\n"
"class AA\n"
"{\n"
"public:\n"
" static AA<T> create(T* newObject);\n"
" static int size();\n"
"};\n"
"\n"
"class CC { public: CC(AA<BB>, int) {} };\n"
"\n"
"class XX {\n"
" AA<CC> y;\n"
"public:\n"
" XX();\n"
"};\n"
"\n"
"XX::XX():\n"
" y(AA<CC>::create(new CC(AA<BB>(), 0)))\n"
" {}\n"
"\n"
"int yy[AA<CC>::size()];";
// Just run it and check that there are not assertions.
tok(code);
}
void template14() {
const char code[] = "template <> void foo<int *>()\n"
"{ x(); }\n"
"\n"
"int main()\n"
"{\n"
"foo<int*>();\n"
"}\n";
// The expected result..
const char expected[] = "void foo<int*> ( ) "
"{ x ( ) ; } "
"int main ( ) "
"{ foo<int*> ( ) ; }";
ASSERT_EQUALS(expected, tok(code));
}
void template15() { // recursive templates #3130 etc
const char code[] = "template <unsigned int i> void a()\n"
"{\n"
" a<i-1>();\n"
"}\n"
"\n"
"template <> void a<0>()\n"
"{ }\n"
"\n"
"int main()\n"
"{\n"
" a<2>();\n"
" return 0;\n"
"}\n";
// The expected result..
const char expected[] = "void a<2> ( ) ; "
"void a<1> ( ) ; "
"void a<0> ( ) { } "
"int main ( ) "
"{ a<2> ( ) ; return 0 ; } "
"void a<2> ( ) { a<1> ( ) ; } "
"void a<1> ( ) { a<0> ( ) ; }";
ASSERT_EQUALS(expected, tok(code));
// #3130
const char code2[] = "template <int n> struct vec {\n"
" vec() {}\n"
" vec(const vec<n-1>& v) {}\n" // <- never used don't instantiate
"};\n"
"\n"
"vec<4> v;";
const char expected2[] = "struct vec<4> ; "
"vec<4> v ; "
"struct vec<4> { "
"vec<4> ( ) { } "
"vec<4> ( const vec < 4 - 1 > & v ) { } "
"} ;";
ASSERT_EQUALS(expected2, tok(code2));
}
void template16() {
const char code[] = "template <unsigned int i> void a()\n"
"{ }\n"
"\n"
"template <unsigned int i> void b()\n"
"{ a<i>(); }\n"
"\n"
"int main()\n"
"{\n"
" b<2>();\n"
" return 0;\n"
"}\n";
const char expected[] = "void a<2> ( ) ; "
"void b<2> ( ) ; "
"int main ( ) { b<2> ( ) ; return 0 ; } "
"void b<2> ( ) { a<2> ( ) ; } "
"void a<2> ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template17() {
const char code[] = "template<class T>\n"
"class Fred\n"
"{\n"
" template<class T>\n"
" static shared_ptr< Fred<T> > CreateFred()\n"
" {\n"
" }\n"
"};\n"
"\n"
"shared_ptr<int> i;\n";
// Assert that there is no segmentation fault..
tok(code);
}
void template18() {
const char code[] = "template <class T> class foo { T a; };\n"
"foo<int> *f;";
const char expected[] = "class foo<int> ; "
"foo<int> * f ; "
"class foo<int> { int a ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template19() {
const char code[] = "template <typename T> T & foo()\n"
"{ static T temp; return temp; }\n"
"\n"
"void f ( )\n"
"{\n"
" char p = foo<char>();\n"
"}\n";
// The expected result..
const char expected[] = "char & foo<char> ( ) ; "
"void f ( ) "
"{"
" char p ; p = foo<char> ( ) ; "
"} "
"char & foo<char> ( ) { static char temp ; return temp ; }";
ASSERT_EQUALS(expected, tok(code));
}
void template20() {
// Ticket #1788 - the destructor implementation is lost
const char code[] = "template <class T> class A { public: ~A(); };\n"
"template <class T> A<T>::~A() {}\n"
"A<int> a;\n";
// The expected result..
const char expected[] = "class A<int> ; "
"A<int> a ; "
"class A<int> { public: ~ A<int> ( ) ; } ; "
"A<int> :: ~ A<int> ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template21() {
{
const char code[] = "template <class T> struct Fred { T a; };\n"
"Fred<int> fred;";
const char expected[] = "struct Fred<int> ; "
"Fred<int> fred ; "
"struct Fred<int> { int a ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <class T, int sz> struct Fred { T data[sz]; };\n"
"Fred<float,4> fred;";
const char expected[] = "struct Fred<float,4> ; "
"Fred<float,4> fred ; "
"struct Fred<float,4> { float data [ 4 ] ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <class T> struct Fred { Fred(); };\n"
"Fred<float> fred;";
const char expected[] = "struct Fred<float> ; "
"Fred<float> fred ; "
"struct Fred<float> { Fred<float> ( ) ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <class T> struct Fred { };\n"
"Fred<float> fred1;\n"
"Fred<float> fred2;";
const char expected[] = "struct Fred<float> ; "
"Fred<float> fred1 ; "
"Fred<float> fred2 ; "
"struct Fred<float> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
}
void template22() {
const char code[] = "template <class T> struct Fred { T a; };\n"
"Fred<std::string> fred;";
const char expected[] = "struct Fred<std::string> ; "
"Fred<std::string> fred ; "
"struct Fred<std::string> { std :: string a ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template23() {
const char code[] = "template <class T> void foo() { }\n"
"void bar() {\n"
" std::cout << (foo<double>());\n"
"}";
const char expected[] = "void foo<double> ( ) ; "
"void bar ( ) {"
" std :: cout << ( foo<double> ( ) ) ; "
"} "
"void foo<double> ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template24() {
// #2648
const char code[] = "template<int n> struct B\n"
"{\n"
" int a[n];\n"
"};\n"
"\n"
"template<int x> class bitset: B<sizeof(int)>\n"
"{};\n"
"\n"
"bitset<1> z;";
const char expected[] = "struct B<4> ; "
"class bitset<1> ; "
"bitset<1> z ; "
"class bitset<1> : B<4> { } ; "
"struct B<4> { int a [ 4 ] ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
void template25() {
const char code[] = "template<int n> struct B\n"
"{\n"
" int a[n];\n"
"};\n"
"\n"
"template<int x> class bitset: B<((sizeof(int)) ? : 1)>\n"
"{};\n"
"\n"
"bitset<1> z;";
const char actual[] = "template < int n > struct B { int a [ n ] ; } ; "
"class bitset<1> ; "
"bitset<1> z ; "
"class bitset<1> : B < 4 > { } ;";
const char expected[] = "class bitset<1> ; "
"bitset<1> z ; "
"class bitset<1> : B < 4 > { } ; "
"struct B < 4 > { int a [ 4 ] ; } ;";
TODO_ASSERT_EQUALS(expected, actual, tok(code));
}
void template26() {
// #2721
const char code[] = "template<class T>\n"
"class A { public: T x; };\n"
"\n"
"template<class M>\n"
"class C: public A<char[M]> {};\n"
"\n"
"C<2> a;\n";
// TODO: expand A also
ASSERT_EQUALS("template < class T > class A { public: T x ; } ; class C<2> ; C<2> a ; class C<2> : public A < char [ 2 ] > { } ;", tok(code));
}
void template27() {
// #3350 - template inside macro call
const char code[] = "X(template<class T> class Fred);";
ASSERT_THROW(tok(code), InternalError);
}
void template28() {
// #3226 - inner template
const char code[] = "template<class A, class B> class Fred {};\n"
"Fred<int,Fred<int,int> > x;\n";
ASSERT_EQUALS("class Fred<int,int> ; "
"class Fred<int,Fred<int,int>> ; "
"Fred<int,Fred<int,int>> x ; "
"class Fred<int,int> { } ; "
"class Fred<int,Fred<int,int>> { } ;", tok(code));
}
void template30() {
// #3529 - template < template < ..
const char code[] = "template<template<class> class A, class B> void f(){}";
ASSERT_EQUALS("template < template < class > class A , class B > void f ( ) { }", tok(code));
}
void template31() {
// #4010 - template reference type
const char code[] = "template<class T> struct A{}; A<int&> a;";
ASSERT_EQUALS("struct A<int&> ; "
"A<int&> a ; "
"struct A<int&> { } ;", tok(code));
// #7409 - rvalue
const char code2[] = "template<class T> struct A{}; A<int&&> a;";
ASSERT_EQUALS("struct A<int&&> ; "
"A<int&&> a ; "
"struct A<int&&> { } ;", tok(code2));
}
void template32() {
// #3818 - mismatching template not handled well
const char code[] = "template <class T1, class T2, class T3, class T4 > struct A { };\n"
"\n"
"template <class T>\n"
"struct B\n"
"{\n"
" public:\n"
" A < int, Pair<T, int>, int > a;\n" // mismatching parameters => don't instantiate
"};\n"
"\n"
"B<int> b;\n";
ASSERT_EQUALS("template < class T1 , class T2 , class T3 , class T4 > struct A { } ; "
"struct B<int> ; "
"B<int> b ; "
"struct B<int> { public: A < int , Pair < int , int > , int > a ; } ;", tok(code));
}
void template33() {
{
// #3818 - inner templates in template instantiation not handled well
const char code[] = "template<class T> struct A { };\n"
"template<class T> struct B { };\n"
"template<class T> struct C { A<B<X<T> > > ab; };\n"
"C<int> c;";
ASSERT_EQUALS("struct A<B<X<int>>> ; "
"struct B<X<int>> ; "
"struct C<int> ; "
"C<int> c ; "
"struct C<int> { A<B<X<int>>> ab ; } ; "
"struct B<X<int>> { } ; " // <- redundant.. but nevermind
"struct A<B<X<int>>> { } ;", tok(code));
}
{
// #4544
const char code[] = "struct A { };\n"
"template<class T> struct B { };\n"
"template<class T> struct C { };\n"
"C< B<A> > c;";
ASSERT_EQUALS("struct A { } ; "
"template < class T > struct B { } ; " // <- redundant.. but nevermind
"struct C<B<A>> ; "
"C<B<A>> c ; "
"struct C<B<A>> { } ;",
tok(code));
}
}
void template34() {
// #3706 - namespace => hang
const char code[] = "namespace abc {\n"
"template <typename T> struct X { void f(X<T> &x) {} };\n"
"}\n"
"template <> int X<int>::Y(0);";
tok(code);
}
void template35() { // #4074 - "A<'x'> a;" is not recognized as template instantiation
const char code[] = "template <char c> class A {};\n"
"A <'x'> a;";
ASSERT_EQUALS("class A<'x'> ; "
"A<'x'> a ; "
"class A<'x'> { } ;", tok(code));
}
void template36() { // #4310 - Passing unknown template instantiation as template argument
const char code[] = "template <class T> struct X { T t; };\n"
"template <class C> struct Y { Foo < X< Bar<C> > > _foo; };\n" // <- Bar is unknown
"Y<int> bar;";
ASSERT_EQUALS("struct X<Bar<int>> ; "
"struct Y<int> ; "
"Y<int> bar ; "
"struct Y<int> { Foo < X<Bar<int>> > _foo ; } ; "
"struct X<Bar<int>> { Bar < int > t ; } ;",
tok(code));
}
void template37() { // #4544 - A<class B> a;
{
const char code[] = "class A { };\n"
"template<class T> class B {};\n"
"B<class A> b1;\n"
"B<A> b2;";
ASSERT_EQUALS("class A { } ; class B<A> ; B<A> b1 ; B<A> b2 ; class B<A> { } ;",
tok(code));
}
{
const char code[] = "struct A { };\n"
"template<class T> class B {};\n"
"B<struct A> b1;\n"
"B<A> b2;";
ASSERT_EQUALS("struct A { } ; class B<A> ; B<A> b1 ; B<A> b2 ; class B<A> { } ;",
tok(code));
}
{
const char code[] = "enum A { };\n"
"template<class T> class B {};\n"
"B<enum A> b1;\n"
"B<A> b2;";
ASSERT_EQUALS("enum A { } ; class B<A> ; B<A> b1 ; B<A> b2 ; class B<A> { } ;",
tok(code));
}
}
void template_unhandled() {
// An unhandled template usage should be simplified..
ASSERT_EQUALS("x<int> ( ) ;", tok("x<int>();"));
}
void template38() { // #4832 - Crash on C++11 right angle brackets
const char code[] = "template <class T> class A {\n"
" T mT;\n"
"public:\n"
" void foo() {}\n"
"};\n"
"\n"
"int main() {\n"
" A<A<BLA>> gna1;\n"
" A<BLA> gna2;\n"
"}\n";
tok(code); // Don't crash or freeze
}
void template39() { // #4742 - Used to freeze in 1.60
const char code[] = "template<typename T> struct vector {"
" operator T() const;"
"};"
"void f() {"
" vector<vector<int>> v;"
" const vector<int> vi = static_cast<vector<int>>(v);"
"}";
tok(code);
}
void template40() { // #5055 - false negatives when there is template specialization outside struct
const char code[] = "struct A {"
" template<typename T> struct X { T t; };"
"};"
"template<> struct A::X<int> { int *t; };";
ASSERT_EQUALS("struct A { template < typename T > struct X { T t ; } ; } ;", tok(code));
}
void template41() { // #4710 - const in template instantiation not handled perfectly
const char code1[] = "template<class T> struct X { };\n"
"void f(const X<int> x) { }";
ASSERT_EQUALS("struct X<int> ; "
"void f ( const X<int> x ) { } "
"struct X<int> { } ;", tok(code1));
const char code2[] = "template<class T> T f(T t) { return t; }\n"
"int x() { return f<int>(123); }";
ASSERT_EQUALS("int f<int> ( int t ) ; "
"int x ( ) { return f<int> ( 123 ) ; } "
"int f<int> ( int t ) { return t ; }", tok(code2));
}
void template42() { // #4878 cpcheck aborts in ext-blocks.cpp (clang testcode)
const char code[] = "template<typename ...Args>\n"
"int f0(Args ...args) {\n"
" return ^ {\n"
" return sizeof...(Args);\n"
" }() + ^ {\n"
" return sizeof...(args);\n"
" }();\n"
"}";
tok(code);
}
void template43() { // #5097 - Assert due to '>>' in 'B<A<C>>' not being treated as end of template instantation
const char code[] = "template <typename T> struct C { };"
"template <typename T> struct D { static int f() { return C<T>::f(); } };"
"template <typename T> inline int f2() { return D<T>::f(); }"
"template <typename T> int f1(int x, T *) { int id = f2<T>(); return id; }"
"template <> struct C < B < A >> {"
" static int f() {"
" return f1 < B < A >> (0, reinterpret_cast< B<A> *>(E<void *>::Int(-1)));"
" }"
"};";
tok(code); // Don't assert
}
void template44() { // #5297
tok("template<class T> struct StackContainer {"
" void foo(int i) {"
" if (0 >= 1 && i<0) {}"
" }"
"};"
"template<class T> class ZContainer : public StackContainer<T> {};"
"struct FGSTensor {};"
"class FoldedZContainer : public ZContainer<FGSTensor> {};");
}
void template45() { // #5814
tok("namespace Constants { const int fourtytwo = 42; } "
"template <class T, int U> struct TypeMath { "
" static const int mult = sizeof(T) * U; "
"}; "
"template <class T> struct FOO { "
" enum { value = TypeMath<T, Constants::fourtytwo>::something }; "
"};");
ASSERT_EQUALS("", errout.str());
}
void template46() { // #5816
tok("template<class T, class U> struct A { static const int value = 0; }; "
"template <class T> struct B { "
" enum { value = A<typename T::type, int>::value }; "
"};");
ASSERT_EQUALS("", errout.str());
tok("template <class T, class U> struct A {}; "
"enum { e = sizeof(A<int, int>) }; "
"template <class T, class U> struct B {};");
ASSERT_EQUALS("", errout.str());
tok("template<class T, class U> struct A { static const int value = 0; }; "
"template<class T> struct B { typedef int type; }; "
"template <class T> struct C { "
" enum { value = A<typename B<T>::type, int>::value }; "
"};");
ASSERT_EQUALS("", errout.str());
}
void template47() { // #6023
tok("template <typename T1, typename T2 = T3<T1> > class C1 {}; "
"class C2 : public C1<C2> {};");
ASSERT_EQUALS("", errout.str());
}
void template48() { // #6134
tok("template <int> int f( { } ); "
"int foo = f<1>(0);");
ASSERT_EQUALS("", errout.str());
}
void template49() { // #6237
const char code[] = "template <class T> class Fred { void f(); void g(); };\n"
"template <class T> void Fred<T>::f() { }\n"
"template <class T> void Fred<T>::g() { }\n"
"template void Fred<float>::f();\n"
"template void Fred<int>::g();\n";
const char expected[] = "class Fred<float> ; "
"class Fred<int> ; "
"template void Fred<float> :: f ( ) ; "
"template void Fred<int> :: g ( ) ; "
"class Fred<float> { void f ( ) ; void g ( ) ; } ; "
"void Fred<float> :: f ( ) { } "
"void Fred<float> :: g ( ) { } "
"class Fred<int> { void f ( ) ; void g ( ) ; } ; "
"void Fred<int> :: f ( ) { } "
"void Fred<int> :: g ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template50() { // #4272
const char code[] = "template <class T> class Fred { void f(); };\n"
"template <class T> void Fred<T>::f() { }\n"
"template<> void Fred<float>::f() { }\n"
"template<> void Fred<int>::g() { }\n";
const char expected[] = "template < class T > class Fred { void f ( ) ; } ; "
"template < class T > void Fred < T > :: f ( ) { } "
"template < > void Fred < float > :: f ( ) { } "
"template < > void Fred < int > :: g ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template51() { // #6172
tok("template<int N, int ... M> struct A { "
" static void foo() { "
" int i = N; "
" } "
"}; "
"void bar() { "
" A<0>::foo(); "
"}");
}
void template52() { // #6437
tok("template <int value> int sum() { "
" return value + sum<value/2>(); "
"} "
"template<int x, int y> int calculate_value() { "
" return sum<x - y>(); "
"} "
"int value = calculate_value<1,1>();");
}
void template53() { // #4335
tok("template<int N> struct Factorial { "
" enum { value = N * Factorial<N - 1>::value }; "
"};"
"template <> struct Factorial<0> { "
" enum { value = 1 }; "
"};"
"const int x = Factorial<4>::value;", /*simplify=*/true, /*debugwarnings=*/true);
ASSERT_EQUALS("", errout.str());
}
void template54() { // #6587
tok("template<typename _Tp> _Tp* fn(); "
"template <class T> struct A { "
" template <class U, class S = decltype(fn<T>())> "
" struct B { }; "
"}; "
"A<int> a;");
}
void template55() { // #6604
// Avoid constconstconst in macro instantiations
ASSERT_EQUALS(
"template < class T > class AtSmartPtr : public ConstCastHelper < AtSmartPtr < const T > , T > { "
"friend struct ConstCastHelper < AtSmartPtr < const T > , T > ; "
"AtSmartPtr ( const AtSmartPtr < T > & r ) ; "
"} ;",
tok("template<class T> class AtSmartPtr : public ConstCastHelper<AtSmartPtr<const T>, T>\n"
"{\n"
" friend struct ConstCastHelper<AtSmartPtr<const T>, T>;\n"
" AtSmartPtr(const AtSmartPtr<T>& r);\n"
"};"));
// Similar problem can also happen with ...
ASSERT_EQUALS(
"struct A<int> ; "
"struct A<int...> ; "
"A<int> a ( 0 ) ; "
"struct A<int> { "
"A<int> ( int * p ) { p ; } "
"} ; "
"struct A<int...> { "
"A<int...> ( int * p ) { "
"p ; "
"} } ;",
tok("template <typename... T> struct A\n"
"{\n"
" A(T* p) {\n"
" (A<T...>*)(p);\n"
" }\n"
"};\n"
"A<int> a(0);"));
}
void template56() { // #7117
tok("template<bool B> struct Foo { "
" std::array<int, B ? 1 : 2> mfoo; "
"}; "
"void foo() { "
" Foo<true> myFoo; "
"}", /*simplify=*/true, /*debugwarnings=*/true);
ASSERT_EQUALS("", errout.str());
}
void template57() { // #7891
const char code[] = "template<class T> struct Test { Test(T); };\n"
"Test<unsigned long> test( 0 );";
const char exp [] = "struct Test<unsignedlong> ; "
"Test<unsignedlong> test ( 0 ) ; "
"struct Test<unsignedlong> { Test<unsignedlong> ( long ) ; } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template58() { // #6021
const char code[] = "template <typename A>\n"
"void TestArithmetic() {\n"
" x(1 * CheckedNumeric<A>());\n"
"}\n"
"void foo() {\n"
" TestArithmetic<int>();\n"
"}";
const char exp[] = "void TestArithmetic<int> ( ) ; "
"void foo ( ) {"
" TestArithmetic<int> ( ) ; "
"} "
"void TestArithmetic<int> ( ) {"
" x ( CheckedNumeric < int > ( ) ) ; "
"}";
ASSERT_EQUALS(exp, tok(code));
}
void template59() { // #8051
const char code[] = "template<int N>\n"
"struct Factorial {\n"
" enum FacHelper { value = N * Factorial<N - 1>::value };\n"
"};\n"
"template <>\n"
"struct Factorial<0> {\n"
" enum FacHelper { value = 1 };\n"
"};\n"
"template<int DiagonalDegree>\n"
"int diagonalGroupTest() {\n"
" return Factorial<DiagonalDegree>::value;\n"
"}\n"
"int main () {\n"
" return diagonalGroupTest<4>();\n"
"}";
const char exp[] = "struct Factorial<4> ; "
"struct Factorial<3> ; "
"struct Factorial<2> ; "
"struct Factorial<1> ; "
"struct Factorial<0> { enum FacHelper { value = 1 } ; } ; "
"int diagonalGroupTest<4> ( ) ; "
"int main ( ) { return diagonalGroupTest<4> ( ) ; } "
"int diagonalGroupTest<4> ( ) { return Factorial<4> :: value ; } "
"struct Factorial<4> { enum FacHelper { value = 4 * Factorial<3> :: value } ; } ; "
"struct Factorial<3> { enum FacHelper { value = 3 * Factorial<2> :: value } ; } ; "
"struct Factorial<2> { enum FacHelper { value = 2 * Factorial<1> :: value } ; } ; "
"struct Factorial<1> { enum FacHelper { value = Factorial<0> :: value } ; } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template60() { // Extracted from Clang testfile
const char code[] = "template <typename T> struct S { typedef int type; };\n"
"template <typename T> void f() {}\n"
"template <typename T> void h() { f<typename S<T>::type(0)>(); }\n"
"\n"
"void j() { h<int>(); }";
const char exp[] = "struct S<int> ; "
"template < typename T > void f ( ) { } " // <- TODO: This template is not expanded
"void h<int> ( ) ; "
"void j ( ) { h<int> ( ) ; } "
"void h<int> ( ) { f < S<int> :: type ( 0 ) > ( ) ; } "
"struct S<int> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template61() { // hang in daca, code extracted from kodi
const char code[] = "template <typename T> struct Foo {};\n"
"template <typename T> struct Bar {\n"
" void f1(Bar<T> x) {}\n"
" Foo<Bar<T>> f2() { }\n"
"};\n"
"Bar<int> c;";
const char exp[] = "struct Foo<Bar<int>> ; "
"struct Bar<int> ; "
"Bar<int> c ; "
"struct Bar<int> {"
" void f1 ( Bar<int> x ) { }"
" Foo<Bar<int>> f2 ( ) { } "
"} ; "
"struct Foo<Bar<int>> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template62() { // #8314
const char code[] = "template <class T> struct C1 {};\n"
"template <class T> void f() { x = y ? C1<int>::allocate(1) : 0; }\n"
"template <class T, unsigned S> class C3 {};\n"
"template <class T, unsigned S> C3<T, S>::C3(const C3<T, S> &v) { C1<T *> c1; }\n"
"C3<int,6> c3;";
const char exp[] = "struct C1<int*> ; "
"template < class T > void f ( ) { x = y ? ( C1 < int > :: allocate ( 1 ) ) : 0 ; } "
"class C3<int,6> ; "
"C3<int,6> c3 ; "
"class C3<int,6> { } ; "
"C3<int,6> :: C3<int,6> ( const C3<int,6> & v ) { C1<int*> c1 ; } "
"struct C1<int*> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template63() { // #8576
const char code[] = "template<class T> struct TestClass { T m_hi; };"
"TestClass<std::auto_ptr<v>> objTest3;";
const char exp[] = "struct TestClass<std::auto_ptr<v>> ; "
"TestClass<std::auto_ptr<v>> objTest3 ; "
"struct TestClass<std::auto_ptr<v>> { std :: auto_ptr < v > m_hi ; } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template64() { // #8683
const char code[] = "template <typename T>\n"
"bool foo(){return true;}\n"
"struct A {\n"
"template<int n>\n"
"void t_func()\n"
"{\n"
" if( n != 0 || foo<int>());\n"
"}\n"
"void t_caller()\n"
"{\n"
" t_func<0>();\n"
" t_func<1>();\n"
"}\n"
"};";
tok(code); // don't crash
}
void template65() { // #8321
const char code[] = "namespace bpp\n"
"{\n"
"template<class N, class E, class DAGraphImpl>\n"
"class AssociationDAGraphImplObserver :\n"
" public AssociationGraphImplObserver<N, E, DAGraphImpl>\n"
"{};\n"
"template<class N, class E>\n"
"using AssociationDAGlobalGraphObserver = AssociationDAGraphImplObserver<N, E, DAGlobalGraph>;\n"
"}\n"
"using namespace bpp;\n"
"using namespace std;\n"
"int main() {\n"
" AssociationDAGlobalGraphObserver<string,unsigned int> grObs;\n"
" return 1;\n"
"}";
tok(code); // don't crash
}
void template66() { // #8725
const char code[] = "template <class T> struct Fred {\n"
" const int ** foo();\n"
"};\n"
"template <class T> const int ** Fred<T>::foo() { return nullptr; }\n"
"Fred<int> fred;";
const char exp [] = "struct Fred<int> ; "
"Fred<int> fred ; "
"struct Fred<int> { "
"const int * * foo ( ) ; "
"} ; "
"const int * * Fred<int> :: foo ( ) { return nullptr ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template67() { // ticket #8122
const char code[] = "template <class T> struct Containter {\n"
" Containter();\n"
" Containter(const Containter &);\n"
" Containter & operator = (const Containter &);\n"
" ~Containter();\n"
" T* mElements;\n"
" const Containter * c;\n"
"};\n"
"template <class T> Containter<T>::Containter() : mElements(nullptr), c(nullptr) {}\n"
"template <class T> Containter<T>::Containter(const Containter & x) { nElements = x.nElements; c = x.c; }\n"
"template <class T> Containter<T> & Containter<T>::operator = (const Containter & x) { mElements = x.mElements; c = x.c; return *this; }\n"
"template <class T> Containter<T>::~Containter() {}\n"
"Containter<int> intContainer;";
const char expected[] = "struct Containter<int> ; "
"Containter<int> intContainer ; "
"struct Containter<int> { "
"Containter<int> ( ) ; "
"Containter<int> ( const Containter<int> & ) ; "
"Containter<int> & operator= ( const Containter<int> & ) ; "
"~ Containter<int> ( ) ; "
"int * mElements ; "
"const Containter<int> * c ; "
"} ; "
"Containter<int> :: Containter<int> ( ) : mElements ( nullptr ) , c ( nullptr ) { } "
"Containter<int> :: Containter<int> ( const Containter<int> & x ) { nElements = x . nElements ; c = x . c ; } "
"Containter<int> & Containter<int> :: operator= ( const Containter<int> & x ) { mElements = x . mElements ; c = x . c ; return * this ; } "
"Containter<int> :: ~ Containter<int> ( ) { }";
ASSERT_EQUALS(expected, tok(code));
}
void template68() {
const char code[] = "template <class T> union Fred {\n"
" char dummy[sizeof(T)];\n"
" T value;\n"
"};\n"
"Fred<int> fred;";
const char exp [] = "union Fred<int> ; "
"Fred<int> fred ; "
"union Fred<int> { "
"char dummy [ 4 ] ; "
"int value ; "
"} ;";
ASSERT_EQUALS(exp, tok(code));
}
void template69() { // #8791
const char code[] = "class Test {\n"
" int test;\n"
" template <class T> T lookup() { return test; }\n"
" int Fun() { return lookup<int>(); }\n"
"};";
const char exp [] = "class Test { "
"int test ; "
"int lookup<int> ( ) ; "
"int Fun ( ) { return lookup<int> ( ) ; } "
"} ; "
"int Test :: lookup<int> ( ) { return test ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template70() { // #5289
const char code[] = "template<typename T, typename V, int KeySize = 0> class Bar;\n"
"template<>\n"
"class Bar<void, void> {\n"
"};\n"
"template<typename K, typename V, int KeySize>\n"
"class Bar : private Bar<void, void> {\n"
" void foo() { }\n"
"};";
const char exp [] = "template < typename T , typename V , int KeySize = 0 > class Bar ; "
"class Bar<void,void> { "
"} ; "
"template < typename K , typename V , int KeySize = 0 > "
"class Bar : private Bar<void,void> { "
"void foo ( ) { } "
"} ;";
ASSERT_EQUALS(exp, tok(code));
}
void template71() { // #8821
const char code[] = "int f1(int * pInterface, int x) { return 0; }\n"
"\n"
"template< class interface_type > class Reference {\n"
" template< class interface_type > int i();\n"
" int *pInterface;\n"
"};\n"
"\n"
"template< class interface_type > int Reference< interface_type >::i() {\n"
" return f1(pInterface, interface_type::static_type());\n"
"}\n"
"\n"
"Reference< class XPropertyList > dostuff();";
const char exp [] = "int f1 ( int * pInterface , int x ) { return 0 ; } "
"class Reference<XPropertyList> ; "
"Reference<XPropertyList> dostuff ( ) ; "
"class Reference<XPropertyList> { template < class XPropertyList > int i ( ) ; int * pInterface ; } ; "
"int Reference<XPropertyList> :: i ( ) { return f1 ( pInterface , XPropertyList :: static_type ( ) ) ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template72() {
const char code[] = "template <typename N, typename P> class Tokenizer;\n"
"const Tokenizer<Node, Path> *tokenizer() const;\n"
"template <typename N, typename P>\n"
"Tokenizer<N, P>::Tokenizer() { }";
const char exp [] = "template < typename N , typename P > class Tokenizer ; "
"const Tokenizer < Node , Path > * tokenizer ( ) const ; "
"template < typename N , typename P > "
"Tokenizer < N , P > :: Tokenizer ( ) { }";
ASSERT_EQUALS(exp, tok(code));
}
void template73() {
const char code[] = "template<typename T>\n"
"void keep_range(T& value, const T mini, const T maxi){}\n"
"template void keep_range<float>(float& v, const float l, const float u);\n"
"template void keep_range<int>(int& v, const int l, const int u);";
const char exp[] = "void keep_range<float> ( float & v , const float l , const float u ) ; "
"void keep_range<int> ( int & v , const int l , const int u ) ; "
"void keep_range<float> ( float & value , const float mini , const float maxi ) { } "
"void keep_range<int> ( int & value , const int mini , const int maxi ) { }";
ASSERT_EQUALS(exp, tok(code));
}
void template74() {
const char code[] = "template <class T> class BTlist { };\n"
"class PushBackStreamBuf {\n"
"public:\n"
" void pushBack(const BTlist<int> &vec);\n"
"};";
const char exp[] = "class BTlist<int> ; "
"class PushBackStreamBuf { "
"public: "
"void pushBack ( const BTlist<int> & vec ) ; "
"} ; "
"class BTlist<int> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template75() {
const char code[] = "template<typename T>\n"
"T foo(T& value){ return value; }\n"
"template std::vector<std::vector<int>> foo<std::vector<std::vector<int>>>(std::vector<std::vector<int>>& v);";
const char exp[] = "std :: vector < std :: vector < int > > foo<std::vector<std::vector<int>>> ( std :: vector < std :: vector < int > > & v ) ; "
"std :: vector < std :: vector < int > > foo<std::vector<std::vector<int>>> ( std :: vector < std :: vector < int > > & value ) { return value ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template76() {
const char code[] = "namespace NS {\n"
" template<typename T> T foo(T& value) { return value; }\n"
" template std::vector<std::vector<int>> foo<std::vector<std::vector<int>>>(std::vector<std::vector<int>>& v);\n"
"}\n"
"std::vector<std::vector<int>> v;\n"
"v = foo<std::vector<std::vector<int>>>(v);\n";
const char exp[] = "namespace NS { "
"std :: vector < std :: vector < int > > foo<std::vector<std::vector<int>>> ( std :: vector < std :: vector < int > > & v ) ; "
"} "
"std :: vector < std :: vector < int > > v ; "
"v = foo<std::vector<std::vector<int>>> ( v ) ; "
"std :: vector < std :: vector < int > > NS :: foo<std::vector<std::vector<int>>> ( std :: vector < std :: vector < int > > & value ) { return value ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template77() {
const char code[] = "template<typename T>\n"
"struct is_void : std::false_type { };\n"
"template<>\n"
"struct is_void<void> : std::true_type { };\n"
"int main() {\n"
" std::cout << is_void<char>::value << std::endl;\n"
" std::cout << is_void<void>::value << std::endl;\n"
"}";
const char exp[] = "struct is_void<char> ; "
"struct is_void<void> : std :: true_type { } ; "
"int main ( ) { "
"std :: cout << is_void<char> :: value << std :: endl ; "
"std :: cout << is_void<void> :: value << std :: endl ; "
"} "
"struct is_void<char> : std :: false_type { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template78() {
const char code[] = "template <typename>\n"
"struct Base { };\n"
"struct S : Base <void>::Type { };";
const char exp[] = "struct Base<void> ; "
"struct S : Base<void> :: Type { } ; "
"struct Base<void> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template79() { // #5133
const char code[] = "class Foo {\n"
"public:\n"
" template<typename T> void foo() { bar<T>(); }\n"
"private:\n"
" template<typename T> void bar() { bazz(); }\n"
" void bazz() { }\n"
"};\n"
"void some_func() {\n"
" Foo x;\n"
" x.foo<int>();\n"
"}";
const char exp[] = "class Foo { "
"public: "
"void foo<int> ( ) ; "
"private: "
"void bar<int> ( ) ; "
"void bazz ( ) { } "
"} ; "
"void some_func ( ) { "
"Foo x ; "
"x . foo<int> ( ) ; "
"} "
"void Foo :: foo<int> ( ) { bar<int> ( ) ; } "
"void Foo :: bar<int> ( ) { bazz ( ) ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template80() {
const char code[] = "class Fred {\n"
" template <typename T> T foo(T t) const { return t; }\n"
"};\n"
"const void * p = Fred::foo<const void *>(nullptr);";
const char exp[] = "class Fred { "
"const void * foo<constvoid*> ( const void * t ) const ; "
"} ; "
"const void * p ; p = Fred :: foo<constvoid*> ( nullptr ) ; "
"const void * Fred :: foo<constvoid*> ( const void * t ) const { return t ; }";
ASSERT_EQUALS(exp, tok(code));
}
void template81() {
const char code[] = "template <typename Type>\n"
"struct SortWith {\n"
" SortWith(Type);\n"
"};\n"
"template <typename Type>\n"
"SortWith<Type>::SortWith(Type) {}\n"
"int main() {\n"
" SortWith<int>(0);\n"
"}";
const char exp[] = "template < typename Type > "
"struct SortWith { "
"SortWith ( Type ) ; "
"} ; "
"SortWith<int> :: SortWith<int> ( int ) ; "
"int main ( ) { "
"SortWith<int> ( 0 ) ; "
"} "
"SortWith<int> :: SortWith<int> ( int ) { }";
ASSERT_EQUALS(exp, tok(code));
}
void template82() { // 8603
const char code[] = "typedef int comp;\n"
"const int f16=16;\n"
"template<int x>\n"
"class tvec2 {};\n"
"template<int x>\n"
"class tvec3 {};\n"
"namespace swizzle {\n"
"template <comp> void swizzle(tvec2<f16> v) { }\n"
"template <comp x, comp y> void swizzle(tvec3<f16> v) { }\n"
"}\n"
"void foo() {\n"
" using namespace swizzle;\n"
" tvec2<f16> tt2;\n"
" swizzle<1>(tt2);\n"
" tvec3<f16> tt3;\n"
" swizzle<2,3>(tt3);\n"
"}";
const char exp[] = "class tvec2<f16> ; "
"class tvec3<f16> ; "
"namespace swizzle { "
"void swizzle<1> ( tvec2<f16> v ) ; "
"void swizzle<2,3> ( tvec3<f16> v ) ; "
"} "
"void foo ( ) { "
"using namespace swizzle ; "
"tvec2<f16> tt2 ; "
"swizzle<1> ( tt2 ) ; "
"tvec3<f16> tt3 ; "
"swizzle<2,3> ( tt3 ) ; "
"} "
"void swizzle :: swizzle<2,3> ( tvec3<f16> v ) { } "
"void swizzle :: swizzle<1> ( tvec2<f16> v ) { } "
"class tvec3<f16> { } ; "
"class tvec2<f16> { } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template_specialization_1() { // #7868 - template specialization template <typename T> struct S<C<T>> {..};
const char code[] = "template <typename T> struct C {};\n"
"template <typename T> struct S {a};\n"
"template <typename T> struct S<C<T>> {b};\n"
"S<int> s;";
const char exp[] = "template < typename T > struct C { } ; struct S<int> ; template < typename T > struct S < C < T > > { b } ; S<int> s ; struct S<int> { a } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template_specialization_2() { // #7868 - template specialization template <typename T> struct S<C<T>> {..};
const char code[] = "template <typename T> struct C {};\n"
"template <typename T> struct S {a};\n"
"template <typename T> struct S<C<T>> {b};\n"
"S<C<int>> s;";
const char exp[] = "template < typename T > struct C { } ; template < typename T > struct S { a } ; struct S<C<int>> ; S<C<int>> s ; struct S<C<int>> { b } ;";
ASSERT_EQUALS(exp, tok(code));
}
void template_enum() {
const char code1[] = "template <class T>\n"
"struct Unconst {\n"
" typedef T type;\n"
"};\n"
"template <class T>\n"
"struct Unconst<const T> {\n"
" typedef T type;\n"
"};\n"
"template <class T>\n"
"struct Unconst<const T&> {\n"
" typedef T& type;\n"
"};\n"
"template <class T>\n"
"struct Unconst<T* const> {\n"
" typedef T* type;\n"
"};\n"
"template <class T1, class T2>\n"
"struct type_equal {\n"
" enum { value = 0 };\n"
"};\n"
"template <class T>\n"
"struct type_equal<T, T> {\n"
" enum { value = 1 };\n"
"};\n"
"template<class T>\n"
"struct template_is_const\n"
"{\n"
" enum {value = !type_equal<T, typename Unconst<T>::type>::value };\n"
"};";
const char exp1[] = "template < class T > struct Unconst { } ; "
"template < class T > struct Unconst < const T > { } ; "
"template < class T > struct Unconst < const T & > { } ; "
"template < class T > struct Unconst < T * const > { } ; "
"template < class T1 , class T2 > struct type_equal { enum Anonymous0 { value = 0 } ; } ; "
"template < class T > struct type_equal < T , T > { enum Anonymous1 { value = 1 } ; } ; "
"template < class T > struct template_is_const { enum Anonymous2 { value = ! type_equal < T , Unconst < T > :: type > :: value } ; } ;";
ASSERT_EQUALS(exp1, tok(code1));
}
void template_default_parameter() {
{
const char code[] = "template <class T, int n=3>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,2> a1;\n"
" A<int> a2;\n"
"}\n";
// The expected result..
const char expected[] = "class A<int,2> ; "
"class A<int,3> ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } ; "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <class T, int n1=3, int n2=2>\n"
"class A\n"
"{ T ar[n1+n2]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int> a1;\n"
" A<int,3> a2;\n"
"}\n";
// The expected result..
const char expected[] = "class A<int,3,2> ; "
"void f ( ) "
"{"
" A<int,3,2> a1 ;"
" A<int,3,2> a2 ; "
"} "
"class A<int,3,2> "
"{ int ar [ 5 ] ; } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <class T, int n=3>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,(int)2> a1;\n"
" A<int> a2;\n"
"}\n";
const char wanted[] = "template < class T , int n >"
" class A"
" { T ar [ n ] ; } ;"
" void f ( )"
" {"
" A<int,(int)2> a1 ;"
" A<int,3> a2 ;"
" }"
" class A<int,2>"
" { int ar [ 2 ] ; }"
" class A<int,3>"
" { int ar [ 3 ] ; }";
const char current[] = "class A<int,3> ; "
"void f ( ) "
"{ "
"A < int , ( int ) 2 > a1 ; "
"A<int,3> a2 ; "
"} "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
TODO_ASSERT_EQUALS(wanted, current, tok(code));
}
{
const char code[] = "class A { }; "
"template<class T> class B { }; "
"template<class T1, class T2 = B<T1>> class C { }; "
"template<class T1 = A, typename T2 = B<A>> class D { };";
ASSERT_EQUALS("class A { } ; "
"template < class T > class B { } ; "
"template < class T1 , class T2 = B < T1 > > class C { } ; "
"template < class T1 = A , typename T2 = B < A > > class D { } ;", tok(code));
}
{
// #7548
const char code[] = "template<class T, class U> class DefaultMemory {}; "
"template<class Key, class Val, class Mem=DefaultMemory<Key,Val> > class thv_table_c {}; "
"thv_table_c<void *,void *> id_table_m;";
const char exp [] = "template < class T , class U > class DefaultMemory { } ; "
"thv_table_c<void * , void * , DefaultMemory < void * , void *>> id_table_m ; "
"class thv_table_c<void * , void * , DefaultMemory < void * , void * >> { } ;";
const char curr[] = "template < class T , class U > class DefaultMemory { } ; "
"class thv_table_c<void*,void*,DefaultMemory<Key,Val>> ; "
"thv_table_c<void*,void*,DefaultMemory<Key,Val>> id_table_m ; "
"class thv_table_c<void*,void*,DefaultMemory<Key,Val>> { } ;";
TODO_ASSERT_EQUALS(exp, curr, tok(code));
}
}
void template_forward_declared_default_parameter() {
{
const char code[] = "template <class T, int n=3> class A;\n"
"template <class T, int n>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,2> a1;\n"
" A<int> a2;\n"
"}\n";
const char wanted[] = "class A<int,2> ; "
"class A<int,3> ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } ; "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
const char current[] = "template < class T , int n = 3 > class A ; "
"class A<int,2> ; "
"class A<int,3> ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } ; "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
TODO_ASSERT_EQUALS(wanted, current, tok(code));
}
{
const char code[] = "template <class, int = 3> class A;\n"
"template <class T, int n>\n"
"class A\n"
"{ T ar[n]; };\n"
"\n"
"void f()\n"
"{\n"
" A<int,2> a1;\n"
" A<int> a2;\n"
"}\n";
const char wanted[] = "class A<int,2> ; "
"class A<int,3> ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } ; "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
const char current[] = "template < class , int = 3 > class A ; "
"class A<int,2> ; "
"class A<int,3> ; "
"void f ( ) "
"{"
" A<int,2> a1 ;"
" A<int,3> a2 ; "
"} "
"class A<int,2> "
"{ int ar [ 2 ] ; } ; "
"class A<int,3> "
"{ int ar [ 3 ] ; } ;";
TODO_ASSERT_EQUALS(wanted, current, tok(code));
}
}
void template_default_type() {
const char code[] = "template <typename T, typename U=T>\n"
"class A\n"
"{\n"
"public:\n"
" void foo() {\n"
" int a;\n"
" a = static_cast<U>(a);\n"
" }\n"
"};\n"
"\n"
"template <typename T>\n"
"class B\n"
"{\n"
"protected:\n"
" A<int> a;\n"
"};\n"
"\n"
"class C\n"
" : public B<int>\n"
"{\n"
"};\n";
tok(code);
//ASSERT_EQUALS("[file1.cpp:15]: (error) Internal error: failed to instantiate template. The checking continues anyway.\n", errout.str());
ASSERT_EQUALS("", errout.str());
}
void template_typename() {
{
const char code[] = "template <class T>\n"
"void foo(typename T::t *)\n"
"{ }";
// The expected result..
const char expected[] = "template < class T > void foo ( T :: t * ) { }";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "void f() {\n"
" x(sizeof typename);\n"
" type = 0;\n"
"}";
ASSERT_EQUALS("void f ( ) { x ( sizeof ( typename ) ) ; type = 0 ; }", tok(code));
}
}
void template_constructor() {
// #3152 - if template constructor is removed then there might be
// "no constructor" false positives
const char code[] = "class Fred {\n"
" template<class T> explicit Fred(T t) { }\n"
"}";
ASSERT_EQUALS("class Fred { template < class T > explicit Fred ( T t ) { } }", tok(code));
// #3532
const char code2[] = "class Fred {\n"
" template<class T> Fred(T t) { }\n"
"}";
ASSERT_EQUALS("class Fred { template < class T > Fred ( T t ) { } }", tok(code2));
}
void syntax_error_templates_1() {
// ok code.. using ">" for a comparison
tok("x<y>z> xyz;\n");
ASSERT_EQUALS("", errout.str());
// ok code
tok("template<class T> operator<(T a, T b) { }\n");
ASSERT_EQUALS("", errout.str());
// ok code (ticket #1984)
tok("void f(a) int a;\n"
"{ ;x<y; }");
ASSERT_EQUALS("", errout.str());
// ok code (ticket #1985)
tok("void f()\n"
"try { ;x<y; }");
ASSERT_EQUALS("", errout.str());
// ok code (ticket #3183)
tok("MACRO(({ i < x }))");
ASSERT_EQUALS("", errout.str());
// bad code.. missing ">"
ASSERT_THROW(tok("x<y<int> xyz;\n"), InternalError);
// bad code
ASSERT_THROW(tok("typedef\n"
" typename boost::mpl::if_c<\n"
" _visitableIndex < boost::mpl::size< typename _Visitables::ConcreteVisitables >::value\n"
" , ConcreteVisitable\n"
" , Dummy< _visitableIndex >\n"
" >::type ConcreteVisitableOrDummy;\n"), InternalError);
// code is ok, don't show syntax error
tok("struct A {int a;int b};\n"
"class Fred {"
"public:\n"
" Fred() : a({1,2}) {\n"
" for (int i=0;i<6;i++);\n" // <- no syntax error
" }\n"
"private:\n"
" A a;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
}
void template_member_ptr() { // Ticket #5786
tok("struct A {}; "
"struct B { "
"template <void (A::*)() const> struct BB {}; "
"template <bool BT> static bool foo(int) { return true; } "
"void bar() { bool b = foo<true>(0); }"
"};");
tok("struct A {}; "
"struct B { "
"template <void (A::*)() volatile> struct BB {}; "
"template <bool BT> static bool foo(int) { return true; } "
"void bar() { bool b = foo<true>(0); }"
"};");
tok("struct A {}; "
"struct B { "
"template <void (A::*)() const volatile> struct BB {}; "
"template <bool BT> static bool foo(int) { return true; } "
"void bar() { bool b = foo<true>(0); }"
"};");
tok("struct A {}; "
"struct B { "
"template <void (A::*)() volatile const> struct BB {}; "
"template <bool BT> static bool foo(int) { return true; } "
"void bar() { bool b = foo<true>(0); }"
"};");
}
void template_namespace_1() {
// #6570
const char code[] = "namespace {\n"
" template<class T> void Fred(T value) { }\n"
"}\n"
"Fred<int>(123);";
ASSERT_EQUALS("namespace { "
"void Fred<int> ( int value ) ; "
"} "
"Fred<int> ( 123 ) ; "
"void Fred<int> ( int value ) { }", tok(code));
}
void template_namespace_2() {
// #8283
const char code[] = "namespace X {\n"
" template<class T> struct S { };\n"
"}\n"
"X::S<int> s;";
ASSERT_EQUALS("namespace X { "
"struct S<int> ; "
"} "
"X :: S<int> s ; "
"struct X :: S<int> { } ;", tok(code));
}
void template_namespace_3() {
const char code[] = "namespace test16 {\n"
" template <class T> struct foo {\n"
" static void *bar();\n"
" };\n"
" void *test() { return foo<int>::bar(); }\n"
"}";
ASSERT_EQUALS("namespace test16 {"
" struct foo<int> ;"
" void * test ( ) {"
" return foo<int> :: bar ( ) ;"
" } "
"} "
"struct test16 :: foo<int> {"
" static void * bar ( ) ; "
"} ;", tok(code));
}
void template_namespace_4() {
const char code[] = "namespace foo {\n"
" template<class T> class A { void dostuff() {} };\n"
" struct S : public A<int> {\n"
" void f() {\n"
" A<int>::dostuff();\n"
" }\n"
" };\n"
"}";
ASSERT_EQUALS("namespace foo {"
" class A<int> ;"
" struct S : public A<int> {"
" void f ( ) {"
" A<int> :: dostuff ( ) ;"
" }"
" } ; "
"} "
"class foo :: A<int> { void dostuff ( ) { } } ;", tok(code));
}
void template_namespace_5() {
const char code[] = "template<class C> struct S {};\n"
"namespace X { S<int> s; }";
ASSERT_EQUALS("struct S<int> ; "
"namespace X { S<int> s ; } "
"struct S<int> { } ;", tok(code));
}
void template_namespace_6() {
const char code[] = "namespace NS {\n"
"template <typename T> union C {\n"
" char dummy[sizeof(T)];\n"
" T value;\n"
" C();\n"
" ~C();\n"
" C(const C &);\n"
" C & operator = (const C &);\n"
"};\n"
"}\n"
"NS::C<int> intC;\n"
"template <typename T> NS::C<T>::C() {}\n"
"template <typename T> NS::C<T>::~C() {}\n"
"template <typename T> NS::C<T>::C(const NS::C<T> &) {}\n"
"template <typename T> NS::C<T> & NS::C<T>::operator=(const NS::C<T> &) {}";
ASSERT_EQUALS("namespace NS { "
"union C<int> ; "
"} "
"NS :: C<int> intC ; union NS :: C<int> { "
"char dummy [ 4 ] ; "
"int value ; "
"C<int> ( ) ; "
"~ C<int> ( ) ; "
"C<int> ( const NS :: C<int> & ) ; "
"NS :: C<int> & operator= ( const NS :: C<int> & ) ; "
"} ; "
"NS :: C<int> :: C<int> ( ) { } "
"NS :: C<int> :: ~ C<int> ( ) { } "
"NS :: C<int> :: C<int> ( const NS :: C<int> & ) { } "
"NS :: C<int> & NS :: C<int> :: operator= ( const NS :: C<int> & ) { }", tok(code));
}
void template_namespace_7() { // #8768
const char code[] = "namespace N1 {\n"
"namespace N2 {\n"
" struct C { };\n"
" template <class T> struct CT { };\n"
" C c1;\n"
" CT<int> ct1;\n"
"}\n"
"N2::C c2;\n"
"N2::CT<int> ct2;\n"
"}\n"
"N1::N2::C c3;\n"
"N1::N2::CT<int> ct3;";
ASSERT_EQUALS("namespace N1 { "
"namespace N2 { "
"struct C { } ; "
"struct CT<int> ; "
"C c1 ; "
"CT<int> ct1 ; "
"} "
"N2 :: C c2 ; "
"N2 :: CT<int> ct2 ; "
"} "
"N1 :: N2 :: C c3 ; "
"N1 :: N2 :: CT<int> ct3 ; struct N1 :: N2 :: CT<int> { } ;", tok(code));
}
void template_namespace_8() { // #8768
const char code[] = "namespace NS1 {\n"
"namespace NS2 {\n"
" template <typename T>\n"
" struct Fred {\n"
" Fred();\n"
" Fred(const Fred &);\n"
" Fred & operator = (const Fred &);\n"
" ~Fred();\n"
" };\n"
" template <typename T>\n"
" Fred<T>::Fred() { }\n"
" template <typename T>\n"
" Fred<T>::Fred(const Fred<T> & f) { }\n"
" template <typename T>\n"
" Fred<T> & Fred<T>::operator = (const Fred<T> & f) { }\n"
" template <typename T>\n"
" Fred<T>::~Fred() { }\n"
"}\n"
"}\n"
"NS1::NS2::Fred<int> fred;";
ASSERT_EQUALS("namespace NS1 { "
"namespace NS2 { "
"struct Fred<int> ; "
"} "
"} "
"NS1 :: NS2 :: Fred<int> fred ; struct NS1 :: NS2 :: Fred<int> { "
"Fred<int> ( ) ; "
"Fred<int> ( const NS1 :: NS2 :: Fred<int> & ) ; "
"NS1 :: NS2 :: Fred<int> & operator= ( const NS1 :: NS2 :: Fred<int> & ) ; "
"~ Fred<int> ( ) ; "
"} ; "
"NS1 :: NS2 :: Fred<int> :: Fred<int> ( ) { } "
"NS1 :: NS2 :: Fred<int> :: Fred<int> ( const NS1 :: NS2 :: Fred<int> & f ) { } "
"NS1 :: NS2 :: Fred<int> & NS1 :: NS2 :: Fred<int> :: operator= ( const NS1 :: NS2 :: Fred<int> & f ) { } "
"NS1 :: NS2 :: Fred<int> :: ~ Fred<int> ( ) { }", tok(code));
}
void template_namespace_9() {
const char code[] = "namespace NS {\n"
"template<int type> struct Barney;\n"
"template<> struct Barney<1> { };\n"
"template<int type>\n"
"class Fred {\n"
"public:\n"
" Fred();\n"
"private:\n"
" Barney<type> m_data;\n"
"};\n"
"template class Fred<1>;\n"
"}\n";
ASSERT_EQUALS("namespace NS { "
"template < int type > struct Barney ; "
"struct Barney<1> { } ; "
"class Fred<1> ; "
"template class Fred<1> ; "
"} "
"class NS :: Fred<1> { "
"public: "
"Fred<1> ( ) ; "
"private: "
"Barney<1> m_data ; "
"} ;", tok(code));
}
void template_namespace_10() {
const char code[] = "namespace NS1 {\n"
"namespace NS2 {\n"
"template<class T>\n"
"class Fred {\n"
" T * t;\n"
"public:\n"
" Fred<T>() : t(nullptr) {}\n"
"};\n"
"}\n"
"}\n"
"NS1::NS2::Fred<int> fred;";
ASSERT_EQUALS("namespace NS1 { "
"namespace NS2 { "
"class Fred<int> ; "
"} "
"} "
"NS1 :: NS2 :: Fred<int> fred ; class NS1 :: NS2 :: Fred<int> "
"{ "
"int * t ; "
"public: "
"Fred<int> ( ) : t ( nullptr ) { } "
"} ;", tok(code));
}
void template_namespace_11() {// #7145
const char code[] = "namespace MyNamespace {\n"
"class TestClass {\n"
"public:\n"
" TestClass() {\n"
" SomeFunction();\n"
" TemplatedMethod< int >();\n"
" }\n"
" void SomeFunction() { }\n"
"private:\n"
" template< typename T > T TemplatedMethod(T);\n"
"};\n"
"template< typename T > T TestClass::TemplatedMethod(T t) { return t; }\n"
"}";
ASSERT_EQUALS("namespace MyNamespace { "
"class TestClass { "
"public: "
"TestClass ( ) { "
"SomeFunction ( ) ; "
"TemplatedMethod<int> ( ) ; "
"} "
"void SomeFunction ( ) { } "
"private: "
"int TemplatedMethod<int> ( int ) ; "
"template < typename T > T TemplatedMethod ( T ) ; " // this should be removed
"} ; "
"} int MyNamespace :: TestClass :: TemplatedMethod<int> ( int t ) { return t ; }", tok(code));
}
unsigned int templateParameters(const char code[]) {
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp", "");
return TemplateSimplifier::templateParameters(tokenizer.tokens()->next());
}
void templateParameters() {
// Test that the function TemplateSimplifier::templateParameters works
ASSERT_EQUALS(1U, templateParameters("X<struct C> x;"));
ASSERT_EQUALS(1U, templateParameters("X<union C> x;"));
ASSERT_EQUALS(1U, templateParameters("X<const int> x;"));
ASSERT_EQUALS(1U, templateParameters("X<int const *> x;"));
ASSERT_EQUALS(1U, templateParameters("X<const struct C> x;"));
ASSERT_EQUALS(0U, templateParameters("X<len>>x;"));
ASSERT_EQUALS(1U, templateParameters("X<typename> x;"));
ASSERT_EQUALS(0U, templateParameters("X<...> x;"));
ASSERT_EQUALS(0U, templateParameters("X<class T...> x;")); // Invalid syntax
ASSERT_EQUALS(1U, templateParameters("X<class... T> x;"));
ASSERT_EQUALS(0U, templateParameters("X<class, typename T...> x;")); // Invalid syntax
ASSERT_EQUALS(2U, templateParameters("X<class, typename... T> x;"));
ASSERT_EQUALS(2U, templateParameters("X<int(&)(), class> x;"));
ASSERT_EQUALS(3U, templateParameters("X<char, int(*)(), bool> x;"));
TODO_ASSERT_EQUALS(1U, 0U, templateParameters("X<int...> x;")); // Mishandled valid syntax
TODO_ASSERT_EQUALS(2U, 0U, templateParameters("X<class, typename...> x;")); // Mishandled valid syntax
ASSERT_EQUALS(2U, templateParameters("X<1, T> x;"));
ASSERT_EQUALS(1U, templateParameters("X<i == 0> x;"));
ASSERT_EQUALS(2U, templateParameters("X<int, i>=0> x;"));
ASSERT_EQUALS(3U, templateParameters("X<int, i>=0, i - 2> x;"));
}
// Helper function to unit test TemplateSimplifier::getTemplateNamePosition
int templateNamePositionHelper(const char code[], unsigned offset = 0, bool onlyCreateTokens = false) {
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
if (onlyCreateTokens)
tokenizer.createTokens(istr, "test.cpp");
else
tokenizer.tokenize(istr, "test.cpp", emptyString);
const Token *_tok = tokenizer.tokens();
for (unsigned i = 0 ; i < offset ; ++i)
_tok = _tok->next();
return TemplateSimplifier::getTemplateNamePosition(_tok);
}
void templateNamePosition() {
// Template class
ASSERT_EQUALS(2, templateNamePositionHelper("template<class T> class A {};", 4));
ASSERT_EQUALS(2, templateNamePositionHelper("template<class T> struct A {};", 4));
ASSERT_EQUALS(2, templateNamePositionHelper("template<class T> class A : B {};", 4));
ASSERT_EQUALS(2, templateNamePositionHelper("template<class T> struct A : B {};", 4));
// Template function definitions
ASSERT_EQUALS(2, templateNamePositionHelper("template<class T> unsigned foo() { return 0; }", 4));
ASSERT_EQUALS(3, templateNamePositionHelper("template<class T> unsigned* foo() { return 0; }", 4));
ASSERT_EQUALS(3, templateNamePositionHelper("template<class T> const unsigned foo() { return 0; }", 4));
ASSERT_EQUALS(4, templateNamePositionHelper("template<class T> const unsigned& foo() { return 0; }", 4));
// Class template members
ASSERT_EQUALS(4, templateNamePositionHelper("class A { template<class T> unsigned foo(); }; "
"template<class T> unsigned A::foo() { return 0; }", 19));
ASSERT_EQUALS(5, templateNamePositionHelper("class A { template<class T> const unsigned foo(); }; "
"template<class T> const unsigned A::foo() { return 0; }", 20));
TODO_ASSERT_EQUALS(7, -1, templateNamePositionHelper("class A { class B { template<class T> const unsigned foo(); }; } ; "
"template<class T> const unsigned A::B::foo() { return 0; }", 25));
// Template class member
ASSERT_EQUALS(6, templateNamePositionHelper("template<class T> class A { A(); }; "
"template<class T> A<T>::A() {}", 18));
ASSERT_EQUALS(8, templateNamePositionHelper("template<class T, class U> class A { A(); }; "
"template<class T, class U> A<T, U>::A() {}", 24));
ASSERT_EQUALS(7, templateNamePositionHelper("template<class T> class A { unsigned foo(); }; "
"template<class T> unsigned A<T>::foo() { return 0; }", 19));
ASSERT_EQUALS(9, templateNamePositionHelper("template<class T, class U> class A { unsigned foo(); }; "
"template<class T, class U> unsigned A<T, U>::foo() { return 0; }", 25));
ASSERT_EQUALS(9, templateNamePositionHelper("template<class T, class U> class A { unsigned foo(); }; "
"template<class T, class U> unsigned A<T, U>::foo() { return 0; }", 25, /*onlyCreateTokens=*/true));
ASSERT_EQUALS(12, templateNamePositionHelper("template<class T> class v {}; "
"template<class T, class U> class A { unsigned foo(); }; "
"template<> unsigned A<int, v<char> >::foo() { return 0; }", 30, /*onlyCreateTokens=*/true));
}
void expandSpecialized1() {
ASSERT_EQUALS("class A<int> { } ;", tok("template<> class A<int> {};"));
ASSERT_EQUALS("class A<int> : public B { } ;", tok("template<> class A<int> : public B {};"));
ASSERT_EQUALS("class A<int> { A<int> ( ) ; ~ A<int> ( ) ; } ;", tok("template<> class A<int> { A(); ~A(); };"));
ASSERT_EQUALS("class A<int> { A<int> ( ) { } ~ A<int> ( ) { } } ;", tok("template<> class A<int> { A() {} ~A() {} };"));
ASSERT_EQUALS("class A<int> { A<int> ( ) ; ~ A<int> ( ) ; } ; A<int> :: A<int> ( ) { } ~ A<int> :: A<int> ( ) { }",
tok("template<> class A<int> { A(); ~A(); }; A<int>::A() { } ~A<int>::A() {}"));
ASSERT_EQUALS("class A<int> { A<int> ( ) ; A<int> ( const A<int> & ) ; A<int> foo ( ) ; } ; A<int> :: A<int> ( ) { } A<int> :: A<int> ( const A<int> & ) { } A<int> A<int> :: foo ( ) { A<int> a ; return a ; }",
tok("template<> class A<int> { A(); A(const A &) ; A foo(); }; A<int>::A() { } A<int>::A(const A &) { } A<int> A<int>::foo() { A a; return a; }"));
}
void expandSpecialized2() {
{
const char code[] = "template <>\n"
"class C<float> {\n"
"public:\n"
" C() { }\n"
" C(const C &) { }\n"
" ~C() { }\n"
" C & operator=(const C &) { return *this; }\n"
"};\n"
"C<float> b;\n";
const char expected[] = "class C<float> { "
"public: "
"C<float> ( ) { } "
"C<float> ( const C<float> & ) { } "
"~ C<float> ( ) { } "
"C<float> & operator= ( const C<float> & ) { return * this ; } "
"} ; "
"C<float> b ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <>\n"
"class C<float> {\n"
"public:\n"
" C() { }\n"
" C(const C &) { }\n"
" ~C() { }\n"
" C & operator=(const C &) { return *this; }\n"
"};";
const char expected[] = "class C<float> { "
"public: "
"C<float> ( ) { } "
"C<float> ( const C<float> & ) { } "
"~ C<float> ( ) { } "
"C<float> & operator= ( const C<float> & ) { return * this ; } "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <>\n"
"class C<float> {\n"
"public:\n"
" C();\n"
" C(const C &);\n"
" ~C();\n"
" C & operator=(const C &);\n"
"};\n"
"C::C() { }\n"
"C::C(const C &) { }\n"
"C::~C() { }\n"
"C & C::operator=(const C &) { return *this; }\n"
"C<float> b;\n";
const char expected[] = "class C<float> { "
"public: "
"C<float> ( ) ; "
"C<float> ( const C<float> & ) ; "
"~ C<float> ( ) ; "
"C<float> & operator= ( const C<float> & ) ; "
"} ; "
"C<float> :: C<float> ( ) { } "
"C<float> :: C<float> ( const C<float> & ) { } "
"C<float> :: ~ C<float> ( ) { } "
"C<float> & C<float> :: operator= ( const C<float> & ) { return * this ; } "
"C<float> b ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template <>\n"
"class C<float> {\n"
"public:\n"
" C();\n"
" C(const C &);\n"
" ~C();\n"
" C & operator=(const C &);\n"
"};\n"
"C::C() { }\n"
"C::C(const C &) { }\n"
"C::~C() { }\n"
"C & C::operator=(const C &) { return *this; }";
const char expected[] = "class C<float> { "
"public: "
"C<float> ( ) ; "
"C<float> ( const C<float> & ) ; "
"~ C<float> ( ) ; "
"C<float> & operator= ( const C<float> & ) ; "
"} ; "
"C<float> :: C<float> ( ) { } "
"C<float> :: C<float> ( const C<float> & ) { } "
"C<float> :: ~ C<float> ( ) { } "
"C<float> & C<float> :: operator= ( const C<float> & ) { return * this ; }";
ASSERT_EQUALS(expected, tok(code));
}
}
void expandSpecialized3() { // #8671
const char code[] = "template <> struct OutputU16<unsigned char> final {\n"
" explicit OutputU16(std::basic_ostream<unsigned char> &t) : outputStream_(t) {}\n"
" void operator()(unsigned short) const;\n"
"private:\n"
" std::basic_ostream<unsigned char> &outputStream_;\n"
"};";
const char expected[] = "struct OutputU16<unsignedchar> final { "
"explicit OutputU16<unsignedchar> ( std :: basic_ostream < char > & t ) : outputStream_ ( t ) { } "
"void operator() ( short ) const ; "
"private: "
"std :: basic_ostream < char > & outputStream_ ; "
"} ;";
ASSERT_EQUALS(expected, tok(code));
}
void expandSpecialized4() {
{
const char code[] = "template<> class C<char> { };\n"
"map<int> m;";
const char expected[] = "class C<char> { } ; "
"map < int > m ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template<> class C<char> { };\n"
"map<int> m;\n"
"C<char> c;";
const char expected[] = "class C<char> { } ; "
"map < int > m ; "
"C<char> c ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template<typename T> class C { };\n"
"template<> class C<char> { };\n"
"map<int> m;\n";
const char expected[] = "template < typename T > class C { } ; "
"class C<char> { } ; "
"map < int > m ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template<typename T> class C { };\n"
"template<> class C<char> { };\n"
"map<int> m;\n"
"C<int> i;";
const char expected[] = "class C<int> ; "
"class C<char> { } ; "
"map < int > m ; "
"C<int> i ; "
"class C<int> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
{
const char code[] = "template<typename T> class C { };\n"
"template<> class C<char> { };\n"
"map<int> m;\n"
"C<int> i;\n"
"C<char> c;";
const char expected[] = "class C<int> ; "
"class C<char> { } ; "
"map < int > m ; "
"C<int> i ; "
"C<char> c ; "
"class C<int> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
}
void templateAlias1() {
const char code[] = "template<class T, int N> struct Foo {};\n"
"template<class T> using Bar = Foo<T,3>;\n"
"Bar<int> b;\n";
const char expected[] = "struct Foo<int,3> ; "
"Foo<int,3> b ; "
"struct Foo<int,3> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
void templateAlias2() {
const char code[] = "namespace A { template<class T, int N> struct Foo {}; }\n"
"template<class T> using Bar = A::Foo<T,3>;\n"
"Bar<int> b;\n";
const char expected[] = "namespace A { struct Foo<int,3> ; } "
"; "
"A :: Foo<int,3> b ; "
"struct A :: Foo<int,3> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
void templateAlias3() { // #8315
const char code[] = "template <int> struct Tag {};\n"
"template <int ID> using SPtr = std::shared_ptr<void(Tag<ID>)>;\n"
"SPtr<0> s;";
const char expected[] = "struct Tag<0> ; "
"std :: shared_ptr < void ( Tag<0> ) > s ; "
"struct Tag<0> { } ;";
ASSERT_EQUALS(expected, tok(code));
}
unsigned int instantiateMatch(const char code[], const std::size_t numberOfArguments, const char patternAfter[]) {
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp", "");
return TemplateSimplifier::instantiateMatch(tokenizer.tokens(), numberOfArguments, patternAfter);
}
void instantiateMatch() {
// Ticket #8175
ASSERT_EQUALS(false,
instantiateMatch("ConvertHelper < From, To > c ;",
2, ":: %name% ("));
ASSERT_EQUALS(true,
instantiateMatch("ConvertHelper < From, To > :: Create ( ) ;",
2, ":: %name% ("));
ASSERT_EQUALS(false,
instantiateMatch("integral_constant < bool, sizeof ( ConvertHelper < From, To > :: Create ( ) ) > ;",
2, ":: %name% ("));
ASSERT_EQUALS(false,
instantiateMatch("integral_constant < bool, sizeof ( ns :: ConvertHelper < From, To > :: Create ( ) ) > ;",
2, ":: %name% ("));
}
void templateParameterWithoutName() {
ASSERT_EQUALS(1U, templateParameters("template<typename = void> struct s;"));
ASSERT_EQUALS(1U, templateParameters("template<template<typename = float> typename T> struct A {\n"
" void f();n"
" void g();\n"
"};n"));
}
};
REGISTER_TEST(TestSimplifyTemplate)