LuaStackSizeChecker Class Reference

Checker class to verify that stack size unchanged. More...

#include <LuaStackSizeChecker.h>

List of all members.

Public Member Functions
	LuaStackSizeChecker (lua_State *lua)
	capture current stack top level
	~LuaStackSizeChecker ()
	do the check upon destruction
void	checkNow () const
	returns true if stack top currently same as at construction

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Detailed Description

Checker class to verify that stack size unchanged.

It tracks the stack top when constructed, and asserts that it is the same when destructed. Use as

        {
            LuaStackSizeChecker checker(L);
            ... use Lua C API that manipulates stack...
        } // checker destroyed, asserts no change in stack size

        // or if you don't want to use C++ block:
        LuaStackSizeChecker checker(L);
        ... use Lua C API that manipulates stack...
        checker.checkNow();

Note that the check only occurs in a Debug build (if NDEBUG not defined.

Definition at line 31 of file LuaStackSizeChecker.h.