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LuaInterface 2.0.0

Copyright © 2003-2006 Fabio Mascarenhas de Queiroz

Maintainer: Craig Presti, [email protected]

lua51.dll and lua51.exe are Copyright © 2005 Tecgraf, PUC-Rio

Getting started with LuaInterface:

  • Use LuaRunner.exe to run samples/testluaform.lua
  • Run TestLua.exe to see some more test cases
  • Look at src/TestLuaInterface/TestLua to see example usage from C# (optionally run this from inside of the LuaInterface solution in the debugger). Also provides a good example of how to override .net methods from Lua and use LuaInterface from within your .net application.
  • Look at samples/testluaform.lua to see examples of how to use .net from inside Lua
  • More instructions for installing and using in the doc/guide.pdf file.

What's new in LuaInterface 2.0.3

  • Fix: Private methods accessible via LuaInterface
  • Fix: Method overload lookup failures
  • Fix: Lua DoFile memory leaks when file not found (submitted by Paul Moore)
  • Fix: Lua Dispose not freeing memory (submitted by Paul Moore)
  • Fix: Better support for accessing indexers
  • Fix: Parsing error for MBCS characters (qingrui.li)
  • Fix: Dispose errors originating from LuaTable, LuaFunction, LuaUserData
  • Fix: LuaInterface no longer disposes the state when passed one via the overloaded constructor
  • Added: LoadString and LoadFile (submitted by Paul Moore)
  • Added: Overloaded DoString
  • Added: Lua debugging support (rostermeier)

What's new in LuaInterface 2.0.1

  • Apparently the 2.0 built binaries had an issue for some users, this is just a rebuild with the lua sources pulled into the LuaInterface.zip

What's new in LuaInterface 2.0

  • The base lua5.1.2 library is now built as entirely manged code. LuaInterface is now pure CIL
  • Various adapters to connect the older x86 version of lua are no longer needed
  • Performance fixes contributed by Toby Lawrence, Oliver Nemoz and Craig Presti

What's new in LuaInterface 1.5.3

  • Internal lua panics (due to API violations) now throw LuaExceptions into .net
  • If .net code throws an exception into Lua and lua does not handle it, the original exception is forwarded back out to .net land.
  • Fix bug in the Lua 5.1.1 gmatch C code - it was improperly assuming gmatch only works with tables.

What's new in LuaInterface 1.5.2

  • Overriding C# methods from Lua is fixed (broken with .net 2.0!)
  • Registering static C# functions for Lua is fixed (broken with Lua-5.1.1)
  • Rebuilt to fix linking problems with the binaries included in 1.5.1
  • RegisterFunction has been leaking things onto the stack

What's new in LuaInterface 1.5.1

Fix a serious bug w.r.t. garbage collection - made especially apparent with the new lua5.1 switch: If you were very unlucky with timing sometimes Lua would loose track of pointers to CLR functions.

When I added support for static methods, I allowed the user to use either a colon or a dot to separate the method from the class name. This was not correct - it broke disambiguation between overloaded static methods.
Therefore, LuaInterface is now more strict: If you want to call a static method, you must use dot to separate the method name from the class name. Of course you can still use a colon if an instance is being used.

Static method calls are now much faster (due to better caching).

What's new in LuaInterface 1.5

LuaInterface is now updated to be based on Lua5.1.1. You can either use your own build/binaries for Lua5.1.1 or use the version distributed here. (Lots of thanks to Steffen Itterheim for this work!)

LuaInterface.Lua no longer has OpenLibs etc... The base mechanism for library loading for Lua has changed, and we haven't yet broken appart the library loading for LuaInterface. Instead, all standard Lua libraries are automatically loaded at start up.

Fixed a bug where calls of some static methods would reference an invalid pointer.

Fixed a bug when strings with embedded null characters are passed in or out of Lua (Thanks to Daniel Néri for the report & fix!)

The native components in LuaInterface (i.e. Lua51 and the loader) are both built as release builds - to prevent problems loading standard windows libraries.

Note: You do not need to download/build lua-5.1.1.zip unless you want to modify Lua internals (a built version of lua51.dll is included in the regular LuaInterface distribution)

What's New in LuaInterface 1.4

Note: Fabio area of interest has moved off in other directions (hopefully only temporarily). I've talked with Fabio and he's said he's okay with me doing a new release with various fixes I've made over the last few months. Changes since 1.3:

Visual Studio 2005/.Net 2.0 is supported.

Compat-5.1 is modified to expect backslash as the path seperator.

LuaInterface will now work correctly with Generic C# classes.

CLR inner types are now supported.

Fixed a problem where sometimes Lua proxy objects would be associated with the wrong CLR object.

If a CLR class has an array accessor, the elements can be accessed using the regular Lua indexing interface.

Add CLRPackage.lua to the samples directory. This class makes it much easier to automatically load referenced assemblies. In the next release this loading will be automatic.

To see an quick demonstration of LuaInterface, cd into luainterface/samples and then type: ....\Built\debug\LuaRunner.exe testluaform.lua

Various other minor fixes that I've forgotten. I'll keep better track next time.

Note: LuaInterface is still based on Lua 5.0.2. If someone really wants us to upgrade to Lua 5.1 please send me a note. In the mean time, I'm also distributing a version of Lua 5.0.2 with an appropriate VS 2005 project file. You do not need to download this file unless you want to modify Lua internals (a built version of lua50.dll is included in the regular LuaInterface distribution)

What's New in LuaInterface 1.3

LuaInterface now works with LuaBinaries Release 2 (http://luabinaries.luaforge.net) and Compat-5.1 Release 3 (http://luaforge.net/projects/compat). The loader DLL is now called luanet.dll, and does not need a luainterface.lua file anymore (just put LuaInterface.dll in the GAC, luanet.dll in your package.cpath, and do require"luanet").

Fixed a bug in the treatment of the char type (thanks to Ron Scott).

LuaInterface.dll now has a strong name, and can be put in the GAC (thanks to Ivan Voras).

You can now use foreach with instances of LuaTable (thanks to Zachary Landau).

There is an alternate form of loading assemblies and importing types (based on an anonymous contribution in the Lua wiki). Check the _alt files in the samples folder.

What's New in LuaInterface 1.2.1

Now checks if two LuaInterface.Lua instances are trying to share the same Lua state, and throws an exception if this is the case. Also included readonly clauses in public members of the Lua and ObjectTranslator classes.

This version includes the source of LuaInterfaceLoader.dll, with VS.Net 2003 project files.

What's New in LuaInterface 1.2

LuaInterface now can be loaded as a module, so you can use the lua standalone interpreter to run scripts. Thanks to Paul Winwood for this idea and sample code showing how to load the CLR from a C++ program. The module is "luainterface". Make sure Lua can find luainterface.lua, and LuaInterfaceLoader.dll is either in the current directory or the GAC. The samples now load LuaInterface as a module, in its own namespace.

The get_method_bysig, get_constructor_bysig and make_object were changed: now you pass the names of the types to them, instead of the types themselves. E.g:


instead of

String = import_type("System.String") get_method_bysig(obj,"method",String)

Make sure the assemblies of the types you are passing have been loaded, or the call will fail. The test cases in src/TestLuaInterface/TestLua.cs have examples of the new functions.

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