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/* ----------------------------------------------------------------------------- * _std_common.i * * std::helpers for LUA * ----------------------------------------------------------------------------- */ %include <std_except.i> // the general exceptions /* The basic idea here, is instead of trying to feed SWIG all the horribly templated STL code, to give it a neatened version. These %defines cover some of the more common methods so the class declarations become just a set of %defines */ /* #define for basic container features note: I allow front(), back() & pop_back() to throw exceptions upon empty containers, rather than coredump (as we haven't defined the methods, we can use %extend to add with new features) */ %define %STD_CONTAINER_METHODS(CLASS,T) public: CLASS(); CLASS(const CLASS&); unsigned int size() const; unsigned int max_size() const; bool empty() const; void clear(); %extend { // the extra stuff which must be checked T front()const throw (std::out_of_range){ // only read front & back if (self->empty()) throw std::out_of_range("in "#CLASS"::front()"); return self->front(); } T back()const throw (std::out_of_range){ // not write to them if (self->empty()) throw std::out_of_range("in "#CLASS"::back()"); return self->back(); } } %enddef /* push/pop for front/back also note: front & back are read only methods, not used for writing */ %define %STD_FRONT_ACCESS_METHODS(CLASS,T) public: void push_front(const T& val); %extend { // must check this void pop_front() throw (std::out_of_range){ if (self->empty()) throw std::out_of_range("in "#CLASS"::pop_front()"); self->pop_back(); } } %enddef %define %STD_BACK_ACCESS_METHODS(CLASS,T) public: void push_back(const T& val); %extend { // must check this void pop_back() throw (std::out_of_range){ if (self->empty()) throw std::out_of_range("in "#CLASS"::pop_back()"); self->pop_back(); } } %enddef /* Random access methods */ %define %STD_RANDOM_ACCESS_METHODS(CLASS,T) %extend // this is a extra bit of SWIG code { // [] is replaced by __getitem__ & __setitem__ // simply throws a string, which causes a lua error T __getitem__(unsigned int idx) throw (std::out_of_range){ if (idx>=self->size()) throw std::out_of_range("in "#CLASS"::__getitem__()"); return (*self)[idx]; } void __setitem__(unsigned int idx,const T& val) throw (std::out_of_range){ if (idx>=self->size()) throw std::out_of_range("in "#CLASS"::__setitem__()"); (*self)[idx]=val; } }; %enddef