WebAssembly Lua

[{"_1":2,"_161":-5,"_162":-5},"loaderData",{"_3":4,"_17":18,"_25":26,"_140":141},"root",{"_5":-5,"_6":-7,"_7":8,"_9":-7,"_10":11,"_12":-7,"_13":14,"_15":16},"currentUser","primaryEmail","siteVerification","6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI","toast","enableDev",false,"incidentStatus","theme","system","contrast","normal","routes/_layout",{"_19":-5,"_20":21,"_22":21,"_23":11,"_24":21},"username","isAskGordonEnabled",true,"isUsingNewTemplate","showMinimalLanding","showHoneypotTrap","routes/_layout.r.$namespace.$reponame",{"_27":28,"_29":-5,"_30":11,"_31":11,"_32":33,"_34":35,"_36":-5,"_37":11,"_38":39,"_88":-5,"_89":90,"_129":-5,"_130":11,"_131":21,"_132":11,"_133":-5,"_134":11,"_135":-5,"_136":137,"_138":91,"_139":-7},"canonicalUrl","https://hub.docker.com/r/ysugimoto/webassembly-lua/tags","mcpServer","canSeeDockerfile","canSeeAutobuilds","namespace","ysugimoto","reponame","webassembly-lua","cloudBuildSource","isAutobuildsAvailable","repo",{"_40":41,"_42":43,"_45":46,"_47":48,"_49":11,"_50":51,"_52":53,"_54":55,"_57":35,"_32":33,"_58":59,"_60":44,"_61":62,"_63":64,"_65":66,"_67":-5,"_68":62,"_69":70,"_71":11,"_72":33,"_73":74,"_79":11,"_80":81,"_85":33,"_86":87},"categories",[],"content_types",[44],"image","date_registered","2018-10-11T09:32:45.25814Z","description"," Write and compile as WebAssembly program by lua script.","is_private","last_updated","2022-06-27T19:16:37.421288Z","last_modified","2024-10-16T13:48:34.145251Z","media_types",[56],"application/vnd.docker.container.image.v1+json","name","pull_count",1627,"repository_type","star_count",0,"status",1,"status_description","active","source","collaborator_count","full_description","# webassembly-lua\n\nWrite and compile as WebAssembly program by lua script.\n\n**Note: this project is still under development. We have to do more improvement**\n\n## Requirements\n\n- [emscripten](https://github.com/kripken/emscripten)\n- [lua](https://www.lua.org/) (prefer to use latest version)\n- Python 3.6.5+\n\nTo avoid to polute your environment, we prefer to use prebuilt docker image on [docker image](https://hub.docker.com/r/ysugimoto/webassembly-lua/).\n\n## How to use\n\n### Write lua script\n\nHere is example `Hello World` script:\n\n```lua\nfunction hello_world()\n return 'Hello, WebAssembly Lua!'\nend\n```\n\nMake sure the function declares as *global* in order to access from C program.\nAnd, also you can spcify some function arguments like:\n\n```lua\nfunction hell_something(something):\n return ('Hello, %s!'):format(something)\nend\n```\n\nThen, you need to rememeber what `type` of argument should be supplied and what `type` of value will return (supports `string` or `int` for now).\n\n### Write definitions in `definition.yml`\n\nThe `definition.yml` is configuration for generate / compile WebAssembly binary. Format is following:\n\n```yaml\ndependencies:\n - luaposix\n\nfunctions:\n hello_something:\n return : string\n args:\n - string\n\nentry_file: hello_world.lua\n```\n\nDescribes each fields:\n\n| Field | Type | Default | description |\n|:----------------------:|:-------:|:--------:|:-------------------------------------------------------------------------------|\n| dependencies | array | - | program dependencies. the list of modules will be installed via `luarocks`. |\n| functions | object | - | Function definitions. The key is function name which will be exported on WASM. |\n| functions[name].return | string | - | Define function return type. |\n| functions[name].args | array | - | Defined function argument type list. |\n| entry_file | strring | main.lua | the file name of program entry. |\n\n### Compile as WebAssembly program\n\nOn docker image, the image has `emcc-lua` command:\n\n```shell\n$ docker pull ysugimoto/webassembly-lua\n$ docker run --rm -v $PWD:/src ysugimoto/webassembly-lua emcc-lua\n```\n\nThe `emcc-lua` finds `definition.yml in current working directory (in this case, `$PWD`) and start to build.\nIf build successfully, you can see a `hello_world.[html,js,wasm]` in your directory. The output file is named by `entry_file` in definition.yml.\n\n### Run WebAssembly program\n\nOpen created or write HTML to run compiled WebAssembly program like:\n\n```html\n\n\n \n \n WebAssembly Lua\n \n \n \n \n \n\n```\n\nAnd run local server in your favorite way (e.g python -m http.server) and access to `http://localhost:8000/hello_world.html` (port may need), then you can see `Hello, WebAssembly Lua!` message in your browser console.\n\n## Features\n\n- [x] Compile single lua script to WebAssembly binary\n- [x] Support for return type of string and int\n- [x] Support to call function with any arguments\n- [x] Enable to bundle some libraries (e.g. hosted on luarocks, or Independent C libraries)\n\n## TODOs\n\n- [x] Support to require other lua modules which you defined as other file, installed via luarocks\n- [x] Support to apply function arguments as detected types\n- [x] Works with more complicated script. Now we can work on simple script.\n- [ ] Support some structured return type which can use in JavaScript (Array, Object -- especially JSON --)\n- [ ] Try to compile various libraries (Now we tried to bundle `luaposix`, it's fine to work)\n\n## Author\n\nYoshiaki Sugimoto\n\n## License\n\n\nMIT","has_starred","hub_user","immutable_tags_settings",{"_75":11,"_76":77},"enabled","rules",[78],".*","is_automated","permissions",{"_82":21,"_83":11,"_84":11},"read","write","admin","user","storage_size",1977534560,"orgData","recentTags",[91],{"_92":44,"_93":94,"_95":96,"_97":98,"_99":100,"_50":118,"_119":94,"_120":33,"_121":56,"_57":122,"_123":124,"_125":109,"_126":118,"_127":66,"_128":21},"content_type","creator",3018082,"full_size",683191231,"id",37245054,"images",[101],{"_102":103,"_104":105,"_106":107,"_108":109,"_110":111,"_112":113,"_114":107,"_115":-5,"_116":96,"_63":66,"_117":-5},"architecture","amd64","digest","sha256:e454fcc005d94d109cc1171c023c97b06ad0d519a202818666ee2ab675d4f662","features","","last_pulled","2026-09-30T23:47:28.445904401Z","last_pushed","2022-06-27T19:16:38Z","os","linux","os_features","os_version","size","variant","2022-06-27T19:16:37.282774Z","last_updater","last_updater_username","media_type","latest","repository",6135039,"tag_last_pulled","tag_last_pushed","tag_status","v2","sbxKitMetadata","isPotentialSpam","isHubSbxKitsEnabled","showSbxLogoOverride","sbxTrademarkText","displaySecurityMetadata","tagAttestations","tagsHaveAttestations",[],"selectedTag","attestationsUrl","routes/_layout.r.$namespace.$reponame.tags",{"_38":142,"_149":150,"_136":159,"_160":11},{"_40":143,"_42":144,"_45":46,"_47":48,"_49":11,"_50":51,"_52":53,"_54":145,"_57":35,"_32":33,"_58":59,"_60":44,"_61":62,"_63":64,"_65":66,"_67":-5,"_68":62,"_69":70,"_71":11,"_72":33,"_73":146,"_79":11,"_80":148,"_85":33,"_86":87},[],[44],[56],{"_75":11,"_76":147},[78],{"_82":21,"_83":11,"_84":11},"tags",{"_151":64,"_152":-5,"_153":-5,"_154":155},"count","next","previous","results",[156],{"_92":44,"_93":94,"_95":96,"_97":98,"_99":157,"_50":118,"_119":94,"_120":33,"_121":56,"_57":122,"_123":124,"_125":109,"_126":118,"_127":66,"_128":21},[158],{"_102":103,"_104":105,"_106":107,"_108":109,"_110":111,"_112":113,"_114":107,"_115":-5,"_116":96,"_63":66,"_117":-5},[],"canDeleteTags","actionData","errors"]

ysugimoto/webassembly-lua

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