#ifndef MSP_DATAFILE_LOADERACTION_H_
#define MSP_DATAFILE_LOADERACTION_H_
+#include <msp/core/meta.h>
#include "argumentstore.h"
#include "statement.h"
namespace Msp {
namespace DataFile {
+template<typename T>
+std::string create_signature(const std::string &prefix = std::string())
+{ return prefix+std::string(1, TypeInfo<T>::signature); }
+
+template<typename T0, typename T1, typename... Tail>
+std::string create_signature(const std::string &prefix = std::string())
+{ return create_signature<T1, Tail...>(prefix+std::string(1, TypeInfo<T0>::signature)); }
+
class Loader;
/**
class LoaderAction
{
protected:
- LoaderAction() { }
+ LoaderAction() = default;
public:
- virtual ~LoaderAction() { }
+ virtual ~LoaderAction() = default;
/** Called to process a statement. */
virtual void execute(Loader &, const Statement &) const = 0;
public:
LoaderFunc0(FuncType f): func(f) { }
- virtual void execute(Loader &l, const Statement &) const
+ void execute(Loader &l, const Statement &) const override
{
(dynamic_cast<L &>(l).*func)();
};
- virtual void execute(Loader &l, const ArgumentStore &) const
+ void execute(Loader &l, const ArgumentStore &) const override
{
(dynamic_cast<L &>(l).*func)();
};
- virtual std::string get_signature() const
+ std::string get_signature() const override
{ return std::string(); }
};
public:
LoaderFunc1(FuncType f): func(f) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
(dynamic_cast<L &>(l).*func)(st.args[0].get<A0>());
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
(dynamic_cast<L &>(l).*func)(as.get<A0>(0));
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{ return std::string(1, TypeInfo<A0>::signature); }
};
public:
LoaderFunc1(FuncType f): func(f) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
std::vector<A0> 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<A0>());
+ for(const Value &a: st.args)
+ values.push_back(a.get<A0>());
(dynamic_cast<L &>(l).*func)(values);
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
std::vector<A0> values;
unsigned n_args = as.get_info().key.signature.size();
(dynamic_cast<L &>(l).*func)(values);
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{
std::string result;
result += TypeInfo<A0>::signature;
public:
LoaderFunc1(FuncType f): func(f) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
(dynamic_cast<L &>(l).*func)(st);
}
- virtual void execute(Loader &, const ArgumentStore &) const
+ void execute(Loader &, const ArgumentStore &) const override
{
throw std::logic_error("incompatible format");
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{ return "*"; }
};
-template<typename L, typename A0, typename A1>
-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 &>(l).*func)(st.args[0].get<A0>(), st.args[1].get<A1>());
- }
+template<unsigned I, typename... Args>
+struct Apply;
- virtual void execute(Loader &l, const ArgumentStore &as) const
+template<unsigned I>
+struct Apply<I>
+{
+ template<typename L, typename F, typename... Args>
+ static void apply(L &l, F func, const Statement &, Args &&... args)
{
- (dynamic_cast<L &>(l).*func)(as.get<A0>(0), as.get<A1>(1));
+ (l.*func)(std::forward<Args>(args)...);
}
- virtual std::string get_signature() const
+ template<typename L, typename F, typename... Args>
+ static void apply(L &l, F func, const ArgumentStore &, Args &&... args)
{
- std::string result;
- result += TypeInfo<A0>::signature;
- result += TypeInfo<A1>::signature;
- return result;
+ (l.*func)(std::forward<Args>(args)...);
}
};
-
-template<typename L, typename A0, typename A1, typename A2>
-class LoaderFunc3: public LoaderAction
+template<unsigned I, typename Head, typename... Tail>
+struct Apply<I, Head, Tail...>
{
-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
+ template<typename L, typename F, typename... Args>
+ static void apply(L &l, F func, const Statement &st, Args &&... args)
{
- (dynamic_cast<L &>(l).*func)(st.args[0].get<A0>(), st.args[1].get<A1>(), st.args[2].get<A2>());
+ Apply<I+1, Tail...>::apply(l, func, st, std::forward<Args>(args)..., std::move(st.args[I].get<Head>()));
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ template<typename L, typename F, typename... Args>
+ static void apply(L &l, F func, const ArgumentStore &as, Args &&... args)
{
- (dynamic_cast<L &>(l).*func)(as.get<A0>(0), as.get<A1>(1), as.get<A2>(2));
- }
-
- virtual std::string get_signature() const
- {
- std::string result;
- result += TypeInfo<A0>::signature;
- result += TypeInfo<A1>::signature;
- result += TypeInfo<A2>::signature;
- return result;
+ Apply<I+1, Tail...>::apply(l, func, as, std::forward<Args>(args)..., std::move(as.get<Head>(I)));
}
};
-template<typename L, typename A0, typename A1, typename A2, typename A3>
-class LoaderFunc4: public LoaderAction
+template<typename L, typename... Args>
+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
+ void execute(Loader &l, const Statement &st) const override
{
- (dynamic_cast<L &>(l).*func)(st.args[0].get<A0>(), st.args[1].get<A1>(), st.args[2].get<A2>(), st.args[3].get<A3>());
+ Apply<0, Args...>::apply(dynamic_cast<L &>(l), func, st);
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
- (dynamic_cast<L &>(l).*func)(as.get<A0>(0), as.get<A1>(1), as.get<A2>(2), as.get<A3>(3));
+ Apply<0, Args...>::apply(dynamic_cast<L &>(l), func, as);
}
- virtual std::string get_signature() const
- {
- std::string result;
- result += TypeInfo<A0>::signature;
- result += TypeInfo<A1>::signature;
- result += TypeInfo<A2>::signature;
- result += TypeInfo<A3>::signature;
- return result;
- }
+ std::string get_signature() const override
+ { return create_signature<Args...>(); }
};
-template<typename L, typename A0, typename A1, typename A2, typename A3, typename A4>
-class LoaderFunc5: public LoaderAction
+template<typename L, typename B0, typename... Args>
+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<B0>::type Bound0Type;
FuncType func;
+ Bound0Type bound0;
public:
- LoaderFunc5(FuncType f): func(f) { }
+ LoaderFuncNBound1(FuncType f, const B0 &b0): func(f), bound0(b0) { }
+ LoaderFuncNBound1(FuncType f, B0 &&b0): func(f), bound0(std::move(b0)) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
- (dynamic_cast<L &>(l).*func)(st.args[0].get<A0>(), st.args[1].get<A1>(), st.args[2].get<A2>(), st.args[3].get<A3>(), st.args[4].get<A4>());
+ Apply<0, Args...>::apply(dynamic_cast<L &>(l), func, st, bound0);
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
- (dynamic_cast<L &>(l).*func)(as.get<A0>(0), as.get<A1>(1), as.get<A2>(2), as.get<A3>(3), as.get<A4>(4));
+ Apply<0, Args...>::apply(dynamic_cast<L &>(l), func, as, bound0);
}
- virtual std::string get_signature() const
- {
- std::string result;
- result += TypeInfo<A0>::signature;
- result += TypeInfo<A1>::signature;
- result += TypeInfo<A2>::signature;
- result += TypeInfo<A3>::signature;
- result += TypeInfo<A4>::signature;
- return result;
- }
+ std::string get_signature() const override
+ { return create_signature<Args...>(); }
};
public:
LoadValue1(Pointer0Type p0): ptr0(p0) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
dynamic_cast<typename L::Loader &>(l).get_object().*ptr0 = st.args[0].get<T0>();
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
dynamic_cast<typename L::Loader &>(l).get_object().*ptr0 = as.get<T0>(0);
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{ return std::string(1, TypeInfo<T0>::signature); }
};
public:
LoadValue1(Pointer0Type p0): ptr0(p0) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
typename L::Loader &ldr = dynamic_cast<typename L::Loader &>(l);
ldr.get_object().*ptr0 = &ldr.get_collection().template get<T0>(st.args[0].get<std::string>());
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
typename L::Loader &ldr = dynamic_cast<typename L::Loader &>(l);
ldr.get_object().*ptr0 = &ldr.get_collection().template get<T0>(as.get<std::string>(0));
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{ return std::string(1, TypeInfo<std::string>::signature); }
};
public:
LoadValue2(Pointer0Type p0, Pointer1Type p1): ptr0(p0), ptr1(p1) { }
- virtual void execute(Loader &l, const Statement &st) const
+ void execute(Loader &l, const Statement &st) const override
{
dynamic_cast<typename L::Loader &>(l).get_object().*ptr0 = st.args[0].get<T0>();
dynamic_cast<typename L::Loader &>(l).get_object().*ptr1 = st.args[1].get<T1>();
}
- virtual void execute(Loader &l, const ArgumentStore &as) const
+ void execute(Loader &l, const ArgumentStore &as) const override
{
dynamic_cast<typename L::Loader &>(l).get_object().*ptr0 = as.get<T0>(0);
dynamic_cast<typename L::Loader &>(l).get_object().*ptr1 = as.get<T1>(1);
}
- virtual std::string get_signature() const
+ std::string get_signature() const override
{
std::string result;
result += TypeInfo<T0>::signature;