LuaRef::StackPop Class Reference

Public Member Functions
	StackPop (lua_State *L, int count)
	~StackPop ()

Private Attributes
lua_State *	m_L
int	m_count

Detailed Description

Pop the Lua stack.

Pops the specified number of stack items on destruction. We use this when returning objects, to avoid an explicit temporary variable, since the destructor executes after the return statement. For example:

template <class U>
U cast (lua_State* L)
{
  StackPop p (L, 1);
  ...
  return U (); // dtor called after this line
}

Note

The StackPop object must always be a named local variable.

Definition at line 77 of file LuaRef.h.

Constructor & Destructor Documentation

StackPop()

LuaRef::StackPop::StackPop ( lua_State *  L, int  count  )

inline

Create a StackPop object.

Parameters

L	the LuaState to modify
count	The number of stack entries to pop on destruction.

Definition at line 85 of file LuaRef.h.

~StackPop()

LuaRef::StackPop::~StackPop ( )

inline

Definition at line 91 of file LuaRef.h.

Member Data Documentation

m_count

int LuaRef::StackPop::m_count

private

Definition at line 98 of file LuaRef.h.

m_L

lua_State* LuaRef::StackPop::m_L

private

Definition at line 97 of file LuaRef.h.

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

• LuaRef.h