qlua::LArgConstructor Class Reference

Abstract base class for return constructors which create Lua values from C++ values. More...

#include <LuaArguments.h>

Inheritance diagram for qlua::LArgConstructor:

List of all members.

Public Member Functions
virtual void	Push (lua_State *) const =0
	Push value on Lua stack, invoked when a value must be returned from a method invoked from Lua.
virtual void	Push (lua_State *, void *) const =0
	Push value read from a specific memory location on Lua stack, invoked when calling a method as result of signal emission.
virtual	~LArgConstructor ()
	Virtual destructor.
virtual LArgConstructor *	Clone () const =0
	Return copy of object.
virtual QMetaType::Type	Type () const =0
	Return type of constructed data.
QGenericReturnArgument	Argument () const
	Return QGenericReturnArguments holding a reference to the memory location where the returned value is stored.
virtual bool	IsQObjectPtr () const
	Return true if type is a pointer to a QObject-derived object.
Protected Member Functions
template<typename T >
void	SetArg (T &arg)
	Creates return argument of the proper type.
Protected Attributes
QGenericReturnArgument	ga_
	Placeholder for returned data.

---

Detailed Description

Abstract base class for return constructors which create Lua values from C++ values.

---

Member Function Documentation

virtual bool qlua::LArgConstructor::IsQObjectPtr

(

)

const [inline, virtual]

Return true if type is a pointer to a QObject-derived object.

This is required to have the QLua run-time add the passed QObject into the Lua context. The other option is to have LArgConstructors::Push receive a reference to a LuaContext which introduces a two-way dependency between LArgConstructor and LuaContext.

Reimplemented in qlua::ObjectStarLArgConstructor, and qlua::WidgetStarLArgConstructor.

---

The documentation for this class was generated from the following file:

• LuaArguments.h