This is for my talk A beginner's guide to ASTs for JS Remote Conf 2016.
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A beginner's guide to ASTs files
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| const getRandomStarWarsName = uniqueRandomArray(getStarWarsNames()); | |
| const globals = myGlobals() | |
| export default function ({types: t}) { | |
| return { | |
| visitor: { | |
| Identifier(path) { | |
| if (globals.indexOf(path.node.name) !== -1) { | |
| return; | |
| } | |
| const starWarsName = getRandomStarWarsName(); | |
| const originalName = path.node.name; | |
| path.scope.rename(originalName, starWarsName) | |
| } | |
| } | |
| }; | |
| } | |
| function myGlobals() { | |
| return [ | |
| 'require', 'module', 'exports' | |
| ]; | |
| } | |
| function uniqueRandomArray(arr) { | |
| var rand = uniqueRandom(0, arr.length - 1); | |
| return function () { | |
| return arr[rand()]; | |
| }; | |
| } | |
| function uniqueRandom(min, max) { | |
| var prev = []; | |
| return function rand() { | |
| var num = Math.floor(Math.random() * (max - min + 1) + min); | |
| if (prev.indexOf(num) !== -1) { | |
| return rand(); | |
| } | |
| prev.push(num); | |
| return num; | |
| }; | |
| }; | |
| function getStarWarsNames() { | |
| return [ | |
| "4-LOM", | |
| "Aayla Secura", | |
| "Admiral Ackbar", | |
| "Admiral Thrawn", | |
| "Ahsoka Tano", | |
| "Anakin Solo", | |
| "Asajj Ventress", | |
| "Aurra Sing", | |
| "Senator Bail Organa", | |
| "Barriss Offee", | |
| "Bastila Shan", | |
| "Ben Skywalker", | |
| "Bib Fortuna", | |
| "Biggs Darklighter", | |
| "Boba Fett", | |
| "Bossk", | |
| "Brakiss", | |
| "C-3PO", | |
| "Cad Bane", | |
| "Cade Skywalker", | |
| "Callista Ming", | |
| "Captain Rex", | |
| "Carnor Jax", | |
| "Chewbacca", | |
| "Clone Commander Cody", | |
| "Count Dooku", | |
| "Darth Bane", | |
| "Darth Krayt", | |
| "Darth Maul", | |
| "Darth Nihilus", | |
| "Darth Vader", | |
| "Dash Rendar", | |
| "Dengar", | |
| "Durge", | |
| "Emperor Palpatine", | |
| "Exar Kun", | |
| "Galen Marek", | |
| "General Crix Madine", | |
| "General Dodonna", | |
| "General Grievous", | |
| "General Veers", | |
| "Gilad Pellaeon", | |
| "Grand Moff Tarkin", | |
| "Greedo", | |
| "Han Solo", | |
| "IG 88", | |
| "Jabba The Hutt", | |
| "Jacen Solo", | |
| "Jaina Solo", | |
| "Jango Fett", | |
| "Jarael", | |
| "Jerec", | |
| "Joruus C'Baoth", | |
| "Ki-Adi-Mundi", | |
| "Kir Kanos", | |
| "Kit Fisto", | |
| "Kyle Katarn", | |
| "Kyp Durron", | |
| "Lando Calrissian", | |
| "Luke Skywalker", | |
| "Luminara Unduli", | |
| "Lumiya", | |
| "Mace Windu", | |
| "Mara Jade", | |
| "Mission Vao", | |
| "Natasi Daala", | |
| "Nom Anor", | |
| "Obi-Wan Kenobi", | |
| "Padmé Amidala", | |
| "Plo Koon", | |
| "Pre Vizsla", | |
| "Prince Xizor", | |
| "Princess Leia", | |
| "PROXY", | |
| "Qui-Gon Jinn", | |
| "Quinlan Vos", | |
| "R2-D2", | |
| "Rahm Kota", | |
| "Revan", | |
| "Satele Shan", | |
| "Savage Opress", | |
| "Sebulba", | |
| "Shaak Ti", | |
| "Shmi Skywalker", | |
| "Talon Karrde", | |
| "Ulic Qel-Droma", | |
| "Visas Marr", | |
| "Watto", | |
| "Wedge Antilles", | |
| "Yoda", | |
| "Zam Wesell", | |
| "Zayne Carrick", | |
| "Zuckuss" | |
| ].map(name => { | |
| const letterOnlyName = name | |
| .replace(/[^a-z]/ig, '') | |
| return letterOnlyName.substr(0, 1).toLowerCase() + letterOnlyName.substring(1) | |
| }); | |
| } |
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| const getRandomStarWarsName = uniqueRandomArray(getStarWarsNames()); | |
| export default function ({types: t}) { | |
| return { | |
| visitor: { | |
| } | |
| }; | |
| } | |
| function uniqueRandomArray(arr) { | |
| var rand = uniqueRandom(0, arr.length - 1); | |
| return function () { | |
| return arr[rand()]; | |
| }; | |
| } | |
| function uniqueRandom(min, max) { | |
| var prev = []; | |
| return function rand() { | |
| var num = Math.floor(Math.random() * (max - min + 1) + min); | |
| if (prev.indexOf(num) !== -1) { | |
| return rand(); | |
| } | |
| prev.push(num); | |
| return num; | |
| }; | |
| }; | |
| function getStarWarsNames() { | |
| return [ | |
| "4-LOM", | |
| "Aayla Secura", | |
| "Admiral Ackbar", | |
| "Admiral Thrawn", | |
| "Ahsoka Tano", | |
| "Anakin Solo", | |
| "Asajj Ventress", | |
| "Aurra Sing", | |
| "Senator Bail Organa", | |
| "Barriss Offee", | |
| "Bastila Shan", | |
| "Ben Skywalker", | |
| "Bib Fortuna", | |
| "Biggs Darklighter", | |
| "Boba Fett", | |
| "Bossk", | |
| "Brakiss", | |
| "C-3PO", | |
| "Cad Bane", | |
| "Cade Skywalker", | |
| "Callista Ming", | |
| "Captain Rex", | |
| "Carnor Jax", | |
| "Chewbacca", | |
| "Clone Commander Cody", | |
| "Count Dooku", | |
| "Darth Bane", | |
| "Darth Krayt", | |
| "Darth Maul", | |
| "Darth Nihilus", | |
| "Darth Vader", | |
| "Dash Rendar", | |
| "Dengar", | |
| "Durge", | |
| "Emperor Palpatine", | |
| "Exar Kun", | |
| "Galen Marek", | |
| "General Crix Madine", | |
| "General Dodonna", | |
| "General Grievous", | |
| "General Veers", | |
| "Gilad Pellaeon", | |
| "Grand Moff Tarkin", | |
| "Greedo", | |
| "Han Solo", | |
| "IG 88", | |
| "Jabba The Hutt", | |
| "Jacen Solo", | |
| "Jaina Solo", | |
| "Jango Fett", | |
| "Jarael", | |
| "Jerec", | |
| "Joruus C'Baoth", | |
| "Ki-Adi-Mundi", | |
| "Kir Kanos", | |
| "Kit Fisto", | |
| "Kyle Katarn", | |
| "Kyp Durron", | |
| "Lando Calrissian", | |
| "Luke Skywalker", | |
| "Luminara Unduli", | |
| "Lumiya", | |
| "Mace Windu", | |
| "Mara Jade", | |
| "Mission Vao", | |
| "Natasi Daala", | |
| "Nom Anor", | |
| "Obi-Wan Kenobi", | |
| "Padmé Amidala", | |
| "Plo Koon", | |
| "Pre Vizsla", | |
| "Prince Xizor", | |
| "Princess Leia", | |
| "PROXY", | |
| "Qui-Gon Jinn", | |
| "Quinlan Vos", | |
| "R2-D2", | |
| "Rahm Kota", | |
| "Revan", | |
| "Satele Shan", | |
| "Savage Opress", | |
| "Sebulba", | |
| "Shaak Ti", | |
| "Shmi Skywalker", | |
| "Talon Karrde", | |
| "Ulic Qel-Droma", | |
| "Visas Marr", | |
| "Watto", | |
| "Wedge Antilles", | |
| "Yoda", | |
| "Zam Wesell", | |
| "Zayne Carrick", | |
| "Zuckuss" | |
| ].map(name => { | |
| const letterOnlyName = name | |
| .replace(/[^a-z]/ig, '') | |
| return letterOnlyName.substr(0, 1).toLowerCase() + letterOnlyName.substring(1) | |
| }); | |
| } |
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| module.exports = function(context) { | |
| return { | |
| IfStatement(node) { | |
| if (isBlock(node.consequent) && isBlock(node.alternate)) { | |
| return | |
| } | |
| context.report({ | |
| node: node, | |
| message: 'yo, y u no block?', | |
| fix: function(fixer) { | |
| // fix the codez | |
| } | |
| }) | |
| function isBlock(n) { | |
| return !n || n.type === 'BlockStatement'; | |
| } | |
| } | |
| } | |
| }; |
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| const uniqueRandomArray = require('unique-random-array') | |
| const starWarsNames = require('./starwars-names.json') | |
| const getRandomItem = uniqueRandomArray(starWarsNames) | |
| module.exports = { | |
| all: starWarsNames, | |
| random: random, | |
| } | |
| function random(number) { | |
| if (number === undefined) { | |
| return getRandomItem() | |
| } else { | |
| var randomItems = [] | |
| for (var i = 0; i < number; i++) { | |
| randomItems.push(getRandomItem()) | |
| } | |
| return randomItems | |
| } | |
| } |
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