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History

Robin Gareus 520dcf8cdf rework lua-bridge C++ variable references Since lua functions are closures, C++ methods that pass arguments by reference cannot be used directly. The previous approach (boost::ref) failed with clang. Assume the following: void foo (float&) { } static inline float& bar () { boost::reference_wrapper<float> r (42); return r.get (); } foo ( bar () ); With gcc, "r" goes out of scope after foo's arguments are processed and all is well. But with clang, "r" already leave scope when inlined bar() returns. Solution: allocate some user-data on the lua-stack to hold the reference. There is no reference to this user-data so lua will eventually garbage collect it. (theoretically, creating the table which holds the return-values could trigger an emergency garbage collection when memory is low and free the reference just while they're being pushed to the table, then gain FuncArgs<Params> already dereferenced them all as variable on the C stack -- probably again compiler specific)		2016-07-18 23:52:40 +02:00
..
detail	rework lua-bridge C++ variable references	2016-07-18 23:52:40 +02:00
LuaBridge.h	rework lua-bridge C++ variable references	2016-07-18 23:52:40 +02:00
README

README

https://github.com/vinniefalco/LuaBridge  --  1.0.2-111-g04b47d7

LuaBridge is published under the terms of the MIT License.

  Copyright 2012, Vinnie Falco (<vinnie.falco@gmail.com>)
	Copyright 2008, Nigel Atkinson
	Copyright 2007, Nathan Reed

	Portions from The Loki Library:
	Copyright (C) 2001 by Andrei Alexandrescu

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