with nil arguments removed. Also explains why the uselang=qqq hack doesn't work to show the scribunto messages. This can result in slow compilation times, unreadable error messages and some interfaces are not that friendly (e.g. is just another way to write o.foo(o, x), Does this apply if you are accessing the module from another Lua module, and not directly from a wiki page? lua Now you dont need to ship this init.lua with your binary and life becomes easier. Felicia Hagler - via Google, In the middle of a big move and so far Jay Casey has been immensely helpful to us with all the details! A surprisingly simple Lua compilerExtended version There is still lots of work to do of course, But it's a start TheDJ (talk contribs) 22:18, 18 March 2013 (UTC). The first clause supports the case where the module is being invoked from a template as {{#invoke: Navbar | navbar}}. 3 or compute and return values. For example, check Special:WhatLinksHere/3000 United States Census. For example like: frame.args.row1. for example, make this work without copying the args to a new table? WebTo call a Lua funcion, we first push the function onto the stack. Then, executing script.lua would resullt in an error: SomeClass is nil. The message from MediaWiki:Movepagetext-noredirectfixer should warn about this, perhaps a warning like MediaWiki:Moveuserpage-warning. To iterate a table, instead use for k=1, #tbl do local v = tbl [k]; It does exactly the same without the function call overhead (pairs actually returns another function which is then called for And you can do even better, you can hide library details and not expose them to Lua at all which will make switching between lower-level frameworks much easier, for example: If you want to use a C library and youre using LuaJIT, you dont even need to create a binding for it at all. Ginsuloft (talk) 13:39, 30 October 2013 (UTC), currently, in Module:Historical populations, I am using a somewhat convoluted method to access 'formatnum' which involves passing 'frame' and using 'callParserFunction'. Toohool (talk) 18:13, 15 March 2013 (UTC). This bytecode is converted into LLVM IR and then fed into Deegen, which can transform the functions to do tail calls correctly, use the GHC calling conventions, and a The same can be said about making your program expandable with plugins. Johnuniq (talk) 02:22, 25 June 2013 (UTC). Basically, you need to tell Lua explicitly that something youve created in the coroutine needs to outlive this coroutine (and this is done with lua_xmove). However, in the example where SomeClass is returned as a local variable, you wont need to do this - if you just load the script.lua, it would execute some_class.lua when you call require (it would only do this if another script didnt call it, otherwise it would return a cached SomeClass variable). I measured the overhead of direct and virtual C++ function calls on the Xenon PowerPC some time ago. A cross between resources, documentation, and useful links. mw:Extension:Scribunto/Lua reference manual, Getting started ("hello world") portion of the Lua reference documentation, Sumana Harihareswara, Wikimedia Foundation Engineering Community Manager, MediaWiki:Scribunto-doc-page-does-not-exist. as it does in a multiple assignment: Frietjes (talk) 16:17, 30 October 2013 (UTC). ), The disadvantage of course is that bugfixes in modules like Redirect don't get passed on. mw.site.currentVersion, mw.site.scriptPath, etc etc. Affects Lua, templates & parser functions: Again, the time-delay overhead, to pass thousands of parameters, not only affects the Lua #invoke interface, it extends the same exponential time-delay slowdown in passing parameters to templates as well as "|x=" branch-choices in a #switch function (which also runs 27 seconds to process 6,000 branches).
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