X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Floaderaction.h;h=4666687e71534fd15d63499898ce9217250f4ee9;hb=256b44a5009467171af53316141277027bcc0ba4;hp=82fd3b437902a3494167ae295c7f065184424a5b;hpb=3b78eeb8b92dc3524d6a0456b4daf0a0f3dbf813;p=libs%2Fdatafile.git diff --git a/source/loaderaction.h b/source/loaderaction.h index 82fd3b4..4666687 100644 --- a/source/loaderaction.h +++ b/source/loaderaction.h @@ -1,12 +1,21 @@ #ifndef MSP_DATAFILE_LOADERACTION_H_ #define MSP_DATAFILE_LOADERACTION_H_ +#include #include "argumentstore.h" #include "statement.h" namespace Msp { namespace DataFile { +template +std::string create_signature(const std::string &prefix = std::string()) +{ return prefix+std::string(1, TypeInfo::signature); } + +template +std::string create_signature(const std::string &prefix = std::string()) +{ return create_signature(prefix+std::string(1, TypeInfo::signature)); } + class Loader; /** @@ -104,8 +113,8 @@ public: { std::vector values; values.reserve(st.args.size()); - for(Statement::Arguments::const_iterator i=st.args.begin(); i!=st.args.end(); ++i) - values.push_back(i->get()); + for(const Value &a: st.args) + values.push_back(a.get()); (dynamic_cast(l).*func)(values); } @@ -158,133 +167,93 @@ public: }; -template -class LoaderFunc2: public LoaderAction -{ -private: - typedef void (L::*FuncType)(A0, A1); - - FuncType func; - -public: - LoaderFunc2(FuncType f): func(f) { } - - virtual void execute(Loader &l, const Statement &st) const - { - (dynamic_cast(l).*func)(st.args[0].get(), st.args[1].get()); - } +template +struct Apply; - virtual void execute(Loader &l, const ArgumentStore &as) const +template +struct Apply +{ + template + static void apply(L &l, F func, const Statement &, Args... args) { - (dynamic_cast(l).*func)(as.get(0), as.get(1)); + (l.*func)(args...); } - virtual std::string get_signature() const + template + static void apply(L &l, F func, const ArgumentStore &, Args... args) { - std::string result; - result += TypeInfo::signature; - result += TypeInfo::signature; - return result; + (l.*func)(args...); } }; - -template -class LoaderFunc3: public LoaderAction +template +struct Apply { -private: - typedef void (L::*FuncType)(A0, A1, A2); - - FuncType func; - -public: - LoaderFunc3(FuncType f): func(f) { } - - virtual void execute(Loader &l, const Statement &st) const - { - (dynamic_cast(l).*func)(st.args[0].get(), st.args[1].get(), st.args[2].get()); - } - - virtual void execute(Loader &l, const ArgumentStore &as) const + template + static void apply(L &l, F func, const Statement &st, Args... args) { - (dynamic_cast(l).*func)(as.get(0), as.get(1), as.get(2)); + Apply::apply(l, func, st, args..., st.args[I].get()); } - virtual std::string get_signature() const + template + static void apply(L &l, F func, const ArgumentStore &as, Args... args) { - std::string result; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - return result; + Apply::apply(l, func, as, args..., as.get(I)); } }; -template -class LoaderFunc4: public LoaderAction +template +class LoaderFuncN: public LoaderAction { -private: - typedef void (L::*FuncType)(A0, A1, A2, A3); +protected: + typedef void (L::*FuncType)(Args...); FuncType func; public: - LoaderFunc4(FuncType f): func(f) { } + LoaderFuncN(FuncType f): func(f) { } virtual void execute(Loader &l, const Statement &st) const { - (dynamic_cast(l).*func)(st.args[0].get(), st.args[1].get(), st.args[2].get(), st.args[3].get()); + Apply<0, Args...>::apply(dynamic_cast(l), func, st); } virtual void execute(Loader &l, const ArgumentStore &as) const { - (dynamic_cast(l).*func)(as.get(0), as.get(1), as.get(2), as.get(3)); + Apply<0, Args...>::apply(dynamic_cast(l), func, as); } virtual std::string get_signature() const - { - std::string result; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - return result; - } + { return create_signature(); } }; -template -class LoaderFunc5: public LoaderAction +template +class LoaderFuncNBound1: public LoaderAction { -private: - typedef void (L::*FuncType)(A0, A1, A2, A3, A4); +protected: + typedef void (L::*FuncType)(B0, Args...); + typedef typename std::remove_reference::type Bound0Type; FuncType func; + Bound0Type bound0; public: - LoaderFunc5(FuncType f): func(f) { } + LoaderFuncNBound1(FuncType f, const Bound0Type &b0): func(f), bound0(b0) { } virtual void execute(Loader &l, const Statement &st) const { - (dynamic_cast(l).*func)(st.args[0].get(), st.args[1].get(), st.args[2].get(), st.args[3].get(), st.args[4].get()); + Apply<0, Args...>::apply(dynamic_cast(l), func, st, bound0); } virtual void execute(Loader &l, const ArgumentStore &as) const { - (dynamic_cast(l).*func)(as.get(0), as.get(1), as.get(2), as.get(3), as.get(4)); + Apply<0, Args...>::apply(dynamic_cast(l), func, as, bound0); } virtual std::string get_signature() const - { - std::string result; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - result += TypeInfo::signature; - return result; - } + { return create_signature(); } };