TestSimplifyTemplate() : TestFixture("TestSimplifyTemplate") {

}

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(template83);

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