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115aa6885f
Type handling is mainly done using templates. Template Slic3r::ClassTraits is used to store info about exported types (perl class name). Currently only perl class name and refference name is used. Template values are initialized by REGISTER_CLASS macro. This macro is used in .cpp file of class ( it needs to be used exactly for each type). Ref<type> class is used to return value as perl reference. Operator overloading is used to make c++ and XSpp happy, only pointer value should be possible to return. Clone<type> class is used to return copy of value ( using new and copy constructor). Copy is created on assigment, this should be probably improved (memory leak on multiple assignments). It is overloaded to be able to return type, type* and type&. Typechecking in ExtrusionEntityCollection updated to check all passed types.
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#ifndef slic3r_perlglue_hpp_
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#define slic3r_perlglue_hpp_
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namespace Slic3r {
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template<class T>
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struct ClassTraits {
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static const char* name;
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static const char* name_ref;
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};
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#define REGISTER_CLASS(cname,perlname) \
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class cname; \
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template <>const char* ClassTraits<cname>::name = "Slic3r::" perlname; \
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template <>const char* ClassTraits<cname>::name_ref = "Slic3r::" perlname "::Ref";
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template<class T>
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const char* perl_class_name(const T*) { return ClassTraits<T>::name; }
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template<class T>
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const char* perl_class_name_ref(const T*) { return ClassTraits<T>::name_ref; }
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template <class T>
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class Ref {
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T* val;
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public:
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Ref() {}
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Ref(T* t) : val(t) {}
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operator T*() const {return val; }
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static const char* CLASS() { return ClassTraits<T>::name_ref; }
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};
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template <class T>
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class Clone {
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T* val;
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public:
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Clone() {}
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Clone(T* t) : val(new T(*t)) {}
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Clone(const T& t) : val(new T(t)) {}
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operator T*() const {return val; }
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static const char* CLASS() { return ClassTraits<T>::name; }
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};
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};
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#endif
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