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C++11 using declarations for inheriting implicit base templated constructors 

Testcase - compiles given previous commit, but needs more work!
This commit is contained in:
William S Fulton 2023-07-21 19:28:27 +01:00
parent c9d79386d9
commit 525426911c
3 changed files with 43 additions and 1 deletions
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4
Examples/test-suite/cpp11_director_using_constructor.i
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@ -5,4 +5,8 @@
%feature("director");
%warnfilter(SWIGWARN_LANG_DIRECTOR_ABSTRACT) TemplateConstructor1Derived;
%warnfilter(SWIGWARN_LANG_DIRECTOR_ABSTRACT) TemplateConstructor2Base;
%warnfilter(SWIGWARN_LANG_DIRECTOR_ABSTRACT) TemplateConstructor2Derived;
%include "cpp11_using_constructor.i"

35
Examples/test-suite/cpp11_using_constructor.i
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@ -423,7 +423,6 @@ struct TemplPublicBase6 {
#endif
virtual void meth() {}
};
%}
%template(TemplPublicBase1Int) TemplPublicBase1<int>;
@ -472,3 +471,37 @@ struct TemplPublicDerived6 : TemplPublicBase6<T> {
%template(TemplPublicDerived4Int) TemplPublicDerived4<int>;
%template(TemplPublicDerived5Int) TemplPublicDerived5<int>;
%template(TemplPublicDerived6Int) TemplPublicDerived6<int>;
// Templated constructors
%inline %{
struct TemplateConstructor1Base {
virtual ~TemplateConstructor1Base() {}
// No implicit constructor
template <typename T> TemplateConstructor1Base(const T &t, const char *s) {}
virtual void meth() {}
};
%}
%template(TemplateConstructor1Base) TemplateConstructor1Base::TemplateConstructor1Base<int>;
%inline %{
struct TemplateConstructor1Derived : TemplateConstructor1Base {
using TemplateConstructor1Base::TemplateConstructor1Base;
using TemplateConstructor1Base::meth;
};
%}
// TODO: Missing constructors, below probably ought to work using instantiation as follows:
//%template(TemplateConstructor1Derived) TemplateConstructor1Derived::TemplateConstructor1Derived<int>;
%{
void tester() {
TemplateConstructor1Derived tc = TemplateConstructor1Derived(123, "hi");
tc.meth();
// Note not valid c++:
// TemplateConstructor1Derived tc2 = TemplateConstructor1Derived::TemplateConstructor1Derived<int>(123, "hi");
}
%}
// Note that templated methods also not working with using declarations for inheriting from base templated methods

5
Examples/test-suite/java/cpp11_using_constructor_runme.java
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@ -127,5 +127,10 @@ public class cpp11_using_constructor_runme {
new TemplPublicDerived5Int().meth();
new TemplPublicDerived6Int(0, "hi").meth();
new TemplPublicDerived6Int().meth();
// Templated constructors
new TemplateConstructor1Base(0, "hi").meth();
// TODO: missing constructor...
// new TemplateConstructor1Derived(0, "hi").meth();
}
}