Calling Lua Functions - Game Dev Geek To simplify comparisons, when comparing metadata the following can always be assumed to be true: From this data or according to any other criteria, the handler function should resolve the conflict by returning the value that should be written to the conflicted key. How much do function calls impact performance? There was a problem preparing your codespace, please try again. lua.LVAsBool(v LValue) - Convert to bool, nil and false becomes false. It would be much faster to pass a single parameter, as a single string of delimited choices, alternating with resultant values, rather than try to pass 3,000 choices as 6,000 parameters, which has been running about 27 seconds in the parser. The advantages are a) edits to Redirect to add irrelevant features don't lead to massive queue usage, b) Redirect doesn't have to be protected, and c) in case a required module isn't protected, you don't get confused and fool around with a module you think is in limited use only to find out that you've created a huge server load. 3 Thank you!--QuimGil (talk) 07:52, 21 June 2013 (UTC). mw.site.currentVersion, mw.site.scriptPath, etc etc. My initial thought is that having a module named after a single string function may be a bit extravagant, so perhaps it would be better grouped with other similar functions, if those exist somewhere. For instance, if we have a function like. Hex (? The fact that even an IP user may edit the module namespace suggests that it must be really stable and secure. Thank you for your attention!--Qgil (talk) 21:16, 2 July 2013 (UTC), I created Module:Testcase table, and it seems to work pretty well (see the current transclusions). Since Lua has lexical scope at the block level rather than the function level, this works similarly to the way Python calls __exit__. The function signature must match what you passed in. You might also find Moonscript interesting. If you used classes as globals (which Ive seen in many tutorials and real code), you might have a script like this: Suppose that you didnt execute some_class.lua first (which defines a global SomeClass). Can Lua scripts access the username of the logged in user? However, I found that returning mw.message.newRawMessage("{{User:Wnt/Templates/Sandbox2}}"):parse() produces a timestamp that never changes when the page invoking the module is reloaded, because the page transcluded is not checked at all. GitHub - Samur3i/direct-loader: Requires all Lua files in a in the second case, we use it as an expression: Lua also offers a special syntax for object-oriented calls, 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 -- Sameboat - (talk) 07:07, 18 March 2013 (UTC), Thank Dragons flight for clearing something for me. lua.LVIsFalse(v LValue) - Returns true if nil or false. What I'm trying to do is much more complicated, see Module:Convert/makeunits, but is the same issue. If you think that your game became slow because of Lua code, profile first before rewriting it in C++. itch.io was written with it and it compiles to vanilla Lua. The parser seems to reject any effort to initialize a table in the return statement if one of the indexes is, or could be, interpreted as a number. Its much easier to test if something is non-nil or has a specific type/fields in Lua than in C++. Dealing with C++ objects in Lua is much harder than dealing with native types. 1 time resty -e 'ngx.re.find ("hello, world. Is there a way to obtain a list (array) of all pages with a prefix (e.g. Currently it is misleading advising to check for double redirects. Immediately afterward it gives you another line of codes which I have absolutely no idea where to insert it to make it functional at all. I was just trying to return those hex tables via loadData and seem to have run into a nasty surprise. It relies on Module:Sandbox/QuimGil/Flagicon, which provides the logics, and Module:Sandbox/QuimGil/FlagTranslations, where the flags data is stored. The approach of Module:Sandbox - having every user put scripts into a common receptacle - seems unworkable. The #invoke speed in March 2013 has been about 180/second, compared to short templates running 350-600 per second, or parser functions >750/second, or character-insertion templates running 2,400/second. Reinterpreting The Lua Interpreter | Hackaday Prompt and friendly service as well! Then we call the function with lua_call (). Thank you. The easy part is 'getting rid of the function name': assuming p is the variable in the last line of the program, just say, However, I see no way to get rid of the pipe - it. Think of Lua scripts as functions - you can call them with require or do_file and they can return variables. (and object-oriented programming) in more detail. It's just that a central repository would be so beneficial for everybody (en.wiki devs/editors included) and en.wiki can't really be (in my honest and personal opinion) that place. Lua is a language with implicitly dynamic data types. The tutorial I actually want is how a template with parser functions translate into a Lua module with explanation of what syntax equal what variable/function or whatever. A tag already exists with the provided branch name. This is not a tutorial or step-by-step guide. Local declaration of (built-in) Lua functions to reduce 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). I think it's worth checking back about how far we can go toward an ideal bare {{#invoke:SomeName}} format, since the extra parameter is only a nuisance/confusion to many non-Lua users. Much better! WebTo call a Lua funcion, we first push the function onto the stack. Are you sure you want to create this branch? by displaying a message box/writing to a log), but if your init.lua is not meant to be modified externally, maybe you can do it like this? how can i do this (on which module, i find this Category for translation). [feature X] (images/feature-x.png) Multi-MC Simulation First lets set up the environment and test that it works, start by install gopher-lua: Secondly lets create a minimal implementation: lua.NewState() creates our Lua VM, and it is though L (*lua.LState) we will interact with Lua in the future. If needed, custom metadata can safely be written to the metadata table; it is unique for each key and will persist for the duration of the load() call. Dont forget that you can do this: Now, when you load/execute this script, you will only get one function as the result: All the internal script state will be hidden and non-modifable and wont overwrite any global state in your current Lua state, which is great. a find-and-replace Macro that lets you write code that acts like a function, without the function overhead running an external image to lua tool, so you can just stick the images in your Project folder, and automatically include them into your lua script every time you hit F7 ! Lua 5.4 There is no reason to do it for functions which are already This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. You're looking for performance in the wrong place. The problem with function calls is not that they cost much. There is another problem. Function c However, after writing up Module:Hex, which hex dumps the contents of strings, I was looking at the talk page when I noticed that the hex-dump of the contents of a strip marker (the example with UNIQ QINU) are changing every single time I hit the Talk tab or browser reload button to reload the page, even when I'm completely logged out with scripts disabled! {\displaystyle d=3^{(n/2000)}.} So the idea is the next one: But lua has a specific way to treat weblink and it is right now impossible to use a web address as a string. Otherwise empty string. The message from MediaWiki:Movepagetext-noredirectfixer should warn about this, perhaps a warning like MediaWiki:Moveuserpage-warning. after imported i find error in article with this Category:Pages with script errors. That way it would be obvious straight away which templates have been converted, and would help advertise the fact that we have this neat new programming language available and that we need people to convert existing templates over.
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