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Template instantion fixes when template parameter is used twice in type

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For example T in:
Y<T>::YYY<T>::value_type
This commit is contained in:
William S Fulton 2019-02-17 17:10:46 +00:00
commit 629c881de5
4 changed files with 97 additions and 7 deletions
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45
Examples/test-suite/cpp11_alias_nested_template_scoping.i Normal file
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%module cpp11_alias_nested_template_scoping
// Test to check a template parameter type is expanded when the template parameter
// is used twice in a type name. Expansion was
// Y< short >::YYY< T >::value_type >
// instead of
// Y< short >::YYY< short >::value_type >
#if !defined(SWIGCSHARP) && !defined(SWIGJAVA)
%feature("flatnested") ZZZ;
#endif
%inline %{
template<typename T> struct Y {
typedef T value_type;
typedef Y YY;
template<typename T2> using YYY = Y<T2>;
template<typename T2> struct ZZZ {
typedef T2 another_type;
};
value_type create1() const { return T(); }
Y::value_type create2() const { return T(); }
Y<T>::value_type create3() const { return T(); }
YY::value_type create4() const { return T(); }
Y<T>::YY::value_type create5() const { return T(); }
Y<T>::YYY<T>::value_type create6() const { return T(); }
typename Y<T>::template ZZZ<T>::another_type create7() const { return T(); }
// With global scope prefix
::Y<T>::value_type create13() const { return T(); }
::Y<T>::YY::value_type create15() const { return T(); }
::Y<T>::YYY<T>::value_type create16() const { return T(); }
typename ::Y<T>::template ZZZ<T>::another_type create17() const { return T(); }
};
%}
%extend Y {
%template() YYY<short>;
%template() ZZZ<short>;
};
// Use above workaround instead of below (which currently gives syntax error)
// %template() Y<short>::YYY<short>;
%template(Yshort) Y<short>;