X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Floader.h;h=926a2a16a4adbf2d542701867a47358ad09a3467;hb=7e81da8d9a6e689e271f4f0450a69d8a14f515bb;hp=02caaaf9ee75dce3ca573cf929611124e551053f;hpb=c308213edfde6e137fde273678c4af2520566826;p=libs%2Fdatafile.git

diff --git a/source/loader.h b/source/loader.h
index 02caaaf..926a2a1 100644
--- a/source/loader.h
+++ b/source/loader.h
@@ -1,6 +1,7 @@
 #ifndef MSP_DATAFILE_LOADER_H_
 #define MSP_DATAFILE_LOADER_H_
 
+#include <type_traits>
 #include <map>
 #include <msp/io/file.h>
 #include "loaderaction.h"
@@ -33,12 +34,18 @@ destructor.
 
 See also classes ObjectLoader and CollectionObjectLoader in objectloader.h.
 */
-class Loader
+class Loader: private NonCopyable
 {
-private:
-	typedef std::map<StatementKey, LoaderAction *> ActionMap;
+protected:
+	class ActionMap: public std::map<StatementKey, LoaderAction *>, private NonCopyable
+	{
+	public:
+		~ActionMap();
+	};
 
-	ActionMap actions;
+private:
+	ActionMap local_actions;
+	ActionMap *actions;
 	Parser *cur_parser;
 	unsigned cur_level;
 	const Statement *cur_st;
@@ -50,7 +57,7 @@ protected:
 
 	Loader();
 public:
-	virtual ~Loader();
+	virtual ~Loader() { }
 
 	/** Loads statements from a parser. */
 	void load(Parser &p);
@@ -88,6 +95,11 @@ protected:
 	/** Processes the current statement's substatements with another Loader. */
 	void load_sub_with(Loader &);
 
+	/** Sets the actions to be used when loading.  If the map is empty,
+	init_actions will be called. */
+	void set_actions(ActionMap &);
+	virtual void init_actions() { }
+
 	/** Adds a keyword that is loaded by calling a function. */
 	template<typename L>
 	void add(const std::string &k, void (L::*func)())
@@ -97,28 +109,15 @@ protected:
 	void add(const std::string &k, void (L::*func)(A0))
 	{ add(k, new LoaderFunc1<L, A0>(func)); }
 
-#if __cplusplus>=201103L
 	template<typename L, typename... Args>
 	void add(const std::string &k, void (L::*func)(Args...))
 	{ add(k, new LoaderFuncN<L, Args...>(func)); }
 
-#else
-	template<typename L, typename A0, typename A1>
-	void add(const std::string &k, void (L::*func)(A0, A1))
-	{ add(k, new LoaderFunc2<L, A0, A1>(func)); }
-
-	template<typename L, typename A0, typename A1, typename A2>
-	void add(const std::string &k, void (L::*func)(A0, A1, A2))
-	{ add(k, new LoaderFunc3<L, A0, A1, A2>(func)); }
-
-	template<typename L, typename A0, typename A1, typename A2, typename A3>
-	void add(const std::string &k, void (L::*func)(A0, A1, A2, A3))
-	{ add(k, new LoaderFunc4<L, A0, A1, A2, A3>(func)); }
-
-	template<typename L, typename A0, typename A1, typename A2, typename A3, typename A4>
-	void add(const std::string &k, void (L::*func)(A0, A1, A2, A3, A4))
-	{ add(k, new LoaderFunc5<L, A0, A1, A2, A3, A4>(func)); }
-#endif
+	/** Adds a keyword that is loaded by calling a function with a bound
+	first argument. */
+	template<typename L, typename B0, typename... Args>
+	void add(const std::string &k, void (L::*func)(B0, Args...), const typename std::remove_reference<B0>::type &b0)
+	{ add(k, new LoaderFuncNBound1<L, B0, Args...>(func, b0)); }
 
 	/** Adds a keyword that is loaded into a member of the loaded object. */
 	template<typename L, typename T0>
@@ -157,7 +156,6 @@ protected:
 };
 
 
-#if __cplusplus>=201103L
 /**
 Loads an object from a file.  The object must have a public Loader class.  Any
 extra arguments are passed to the Loader constructor.
@@ -173,7 +171,7 @@ void load(T &obj, const std::string &fn, Args &... args)
 }
 
 /**
-Loads an object from a file stored in a collection.  The object must havea
+Loads an object from a file stored in a collection.  The object must have a
 public Loader class.  The collection is passed to the Loader constructor,
 followed by any extra arguments.
 */
@@ -194,7 +192,7 @@ Loads an object from a file stored in a collection.  The object must havea
 public Loader class.  Any extra arguments are passed to the Loader constructor.
 */
 template<typename T, typename C, typename... Args>
-typename EnableIf<NeedsCollection<typename T::Loader>::value, void>::No load(T &obj, C &coll, const std::string &fn, Args &... args)
+typename std::enable_if<!NeedsCollection<typename T::Loader>::value>::type load(T &obj, C &coll, const std::string &fn, Args &... args)
 {
 	RefPtr<IO::Seekable> in = coll.open_raw(fn);
 	if(!in)
@@ -205,36 +203,6 @@ typename EnableIf<NeedsCollection<typename T::Loader>::value, void>::No load(T &
 	loader.load(parser);
 }
 
-#else
-
-/**
-Loads an object from a file.  The object must have a public Loader class.
-*/
-template<typename T>
-void load(T &obj, const std::string &fn)
-{
-	IO::BufferedFile in(fn);
-
-	Parser parser(in, fn);
-	typename T::Loader loader(obj);
-	loader.load(parser);
-}
-
-/**
-Loads an object from a file, passing one extra argument to the Loader
-constructor.  The object must have a public Loader class.
-*/
-template<typename T, typename U>
-void load(T &obj, const std::string &fn, U &arg)
-{
-	IO::BufferedFile in(fn);
-
-	Parser parser(in, fn);
-	typename T::Loader loader(obj, arg);
-	loader.load(parser);
-}
-#endif
-
 } // namespace DataFile
 } // namespace Msp