Replace i18n generation script with something matching our project
We've been relying on flow being close enough to TypeScript for so long that it is starting to run into issues. Here we switch to babel's parser given we already use babel in the project. Babel's parser is also *slightly* faster, allowing us to generate strings 0.1s faster.
This commit is contained in:
Travis Ralston
parent
e9fcbfe3c8
commit
fed20d46c5
3 changed files with 148 additions and 90 deletions
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@ -105,6 +105,7 @@
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"devDependencies": {
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"@babel/cli": "^7.10.5",
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"@babel/core": "^7.10.5",
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"@babel/parser": "^7.11.0",
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"@babel/plugin-proposal-class-properties": "^7.10.4",
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"@babel/plugin-proposal-decorators": "^7.10.5",
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"@babel/plugin-proposal-export-default-from": "^7.10.4",
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@ -117,6 +118,7 @@
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"@babel/preset-react": "^7.10.4",
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"@babel/preset-typescript": "^7.10.4",
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"@babel/register": "^7.10.5",
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"@babel/traverse": "^7.11.0",
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"@peculiar/webcrypto": "^1.1.2",
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"@types/classnames": "^2.2.10",
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"@types/counterpart": "^0.18.1",
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@ -145,9 +147,7 @@
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"eslint-plugin-flowtype": "^2.50.3",
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"eslint-plugin-react": "^7.20.3",
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"eslint-plugin-react-hooks": "^2.5.1",
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"estree-walker": "^0.9.0",
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"file-loader": "^3.0.1",
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"flow-parser": "0.57.3",
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"glob": "^5.0.15",
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"jest": "^24.9.0",
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"jest-canvas-mock": "^2.2.0",
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@ -18,7 +18,7 @@ limitations under the License.
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/**
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* Regenerates the translations en_EN file by walking the source tree and
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* parsing each file with flow-parser. Emits a JSON file with the
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* parsing each file with the appropriate parser. Emits a JSON file with the
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* translatable strings mapped to themselves in the order they appeared
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* in the files and grouped by the file they appeared in.
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*
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@ -29,8 +29,8 @@ const path = require('path');
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const walk = require('walk');
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const flowParser = require('flow-parser');
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const estreeWalker = require('estree-walker');
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const parser = require("@babel/parser");
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const traverse = require("@babel/traverse");
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const TRANSLATIONS_FUNCS = ['_t', '_td'];
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@ -44,17 +44,9 @@ const OUTPUT_FILE = 'src/i18n/strings/en_EN.json';
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// to a project that's actively maintained.
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const SEARCH_PATHS = ['src', 'res'];
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const FLOW_PARSER_OPTS = {
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esproposal_class_instance_fields: true,
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esproposal_class_static_fields: true,
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esproposal_decorators: true,
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esproposal_export_star_as: true,
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types: true,
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};
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function getObjectValue(obj, key) {
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for (const prop of obj.properties) {
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if (prop.key.type == 'Identifier' && prop.key.name == key) {
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if (prop.key.type === 'Identifier' && prop.key.name === key) {
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return prop.value;
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}
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}
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@ -62,11 +54,11 @@ function getObjectValue(obj, key) {
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}
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function getTKey(arg) {
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if (arg.type == 'Literal') {
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if (arg.type === 'Literal' || arg.type === "StringLiteral") {
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return arg.value;
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} else if (arg.type == 'BinaryExpression' && arg.operator == '+') {
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} else if (arg.type === 'BinaryExpression' && arg.operator === '+') {
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return getTKey(arg.left) + getTKey(arg.right);
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} else if (arg.type == 'TemplateLiteral') {
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} else if (arg.type === 'TemplateLiteral') {
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return arg.quasis.map((q) => {
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return q.value.raw;
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}).join('');
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@ -110,17 +102,44 @@ function getFormatStrings(str) {
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}
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function getTranslationsJs(file) {
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const tree = flowParser.parse(fs.readFileSync(file, { encoding: 'utf8' }), FLOW_PARSER_OPTS);
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const contents = fs.readFileSync(file, { encoding: 'utf8' });
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const trs = new Set();
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estreeWalker.walk(tree, {
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enter: function(node, parent) {
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if (
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node.type == 'CallExpression' &&
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TRANSLATIONS_FUNCS.includes(node.callee.name)
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) {
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try {
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const plugins = [
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// https://babeljs.io/docs/en/babel-parser#plugins
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"classProperties",
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"objectRestSpread",
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"throwExpressions",
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"exportDefaultFrom",
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"decorators-legacy",
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];
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if (file.endsWith(".js") || file.endsWith(".jsx")) {
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// all JS is assumed to be flow or react
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plugins.push("flow", "jsx");
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} else if (file.endsWith(".ts")) {
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// TS can't use JSX unless it's a TSX file (otherwise angle casts fail)
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plugins.push("typescript");
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} else if (file.endsWith(".tsx")) {
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// When the file is a TSX file though, enable JSX parsing
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plugins.push("typescript", "jsx");
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}
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const babelParsed = parser.parse(contents, {
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allowImportExportEverywhere: true,
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errorRecovery: true,
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sourceFilename: file,
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tokens: true,
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plugins,
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});
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traverse.default(babelParsed, {
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enter: (p) => {
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const node = p.node;
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if (p.isCallExpression() && node.callee && TRANSLATIONS_FUNCS.includes(node.callee.name)) {
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const tKey = getTKey(node.arguments[0]);
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// This happens whenever we call _t with non-literals (ie. whenever we've
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// had to use a _td to compensate) so is expected.
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if (tKey === null) return;
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@ -164,7 +183,7 @@ function getTranslationsJs(file) {
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}
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let isPlural = false;
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if (node.arguments.length > 1 && node.arguments[1].type == 'ObjectExpression') {
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if (node.arguments.length > 1 && node.arguments[1].type === 'ObjectExpression') {
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const countVal = getObjectValue(node.arguments[1], 'count');
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if (countVal) {
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isPlural = true;
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@ -183,8 +202,12 @@ function getTranslationsJs(file) {
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trs.add(tKey);
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}
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}
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}
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},
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});
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} catch (e) {
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console.error(e);
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process.exit(1);
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}
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return trs;
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}
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55
yarn.lock
55
yarn.lock
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@ -111,6 +111,15 @@
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jsesc "^2.5.1"
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source-map "^0.5.0"
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"@babel/generator@^7.11.0":
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version "7.11.0"
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resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.11.0.tgz#4b90c78d8c12825024568cbe83ee6c9af193585c"
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integrity sha512-fEm3Uzw7Mc9Xi//qU20cBKatTfs2aOtKqmvy/Vm7RkJEGFQ4xc9myCfbXxqK//ZS8MR/ciOHw6meGASJuKmDfQ==
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dependencies:
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"@babel/types" "^7.11.0"
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jsesc "^2.5.1"
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source-map "^0.5.0"
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"@babel/helper-annotate-as-pure@^7.10.1":
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version "7.10.1"
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resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.10.1.tgz#f6d08acc6f70bbd59b436262553fb2e259a1a268"
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@ -400,6 +409,13 @@
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dependencies:
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"@babel/types" "^7.10.4"
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"@babel/helper-split-export-declaration@^7.11.0":
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version "7.11.0"
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resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.11.0.tgz#f8a491244acf6a676158ac42072911ba83ad099f"
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integrity sha512-74Vejvp6mHkGE+m+k5vHY93FX2cAtrw1zXrZXRlG4l410Nm9PxfEiVTn1PjDPV5SnmieiueY4AFg2xqhNFuuZg==
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dependencies:
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"@babel/types" "^7.11.0"
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"@babel/helper-validator-identifier@^7.10.1", "@babel/helper-validator-identifier@^7.10.3":
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version "7.10.3"
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resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.3.tgz#60d9847f98c4cea1b279e005fdb7c28be5412d15"
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@ -466,6 +482,11 @@
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resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.10.5.tgz#e7c6bf5a7deff957cec9f04b551e2762909d826b"
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integrity sha512-wfryxy4bE1UivvQKSQDU4/X6dr+i8bctjUjj8Zyt3DQy7NtPizJXT8M52nqpNKL+nq2PW8lxk4ZqLj0fD4B4hQ==
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"@babel/parser@^7.11.0":
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version "7.11.0"
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resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.11.0.tgz#a9d7e11aead25d3b422d17b2c6502c8dddef6a5d"
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integrity sha512-qvRvi4oI8xii8NllyEc4MDJjuZiNaRzyb7Y7lup1NqJV8TZHF4O27CcP+72WPn/k1zkgJ6WJfnIbk4jTsVAZHw==
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"@babel/plugin-proposal-async-generator-functions@^7.10.4":
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version "7.10.5"
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resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.10.5.tgz#3491cabf2f7c179ab820606cec27fed15e0e8558"
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@ -1213,6 +1234,21 @@
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globals "^11.1.0"
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lodash "^4.17.19"
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"@babel/traverse@^7.11.0":
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version "7.11.0"
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resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.11.0.tgz#9b996ce1b98f53f7c3e4175115605d56ed07dd24"
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integrity sha512-ZB2V+LskoWKNpMq6E5UUCrjtDUh5IOTAyIl0dTjIEoXum/iKWkoIEKIRDnUucO6f+2FzNkE0oD4RLKoPIufDtg==
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dependencies:
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"@babel/code-frame" "^7.10.4"
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"@babel/generator" "^7.11.0"
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"@babel/helper-function-name" "^7.10.4"
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"@babel/helper-split-export-declaration" "^7.11.0"
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"@babel/parser" "^7.11.0"
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"@babel/types" "^7.11.0"
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debug "^4.1.0"
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globals "^11.1.0"
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lodash "^4.17.19"
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"@babel/types@^7.0.0", "@babel/types@^7.10.1", "@babel/types@^7.10.2", "@babel/types@^7.3.0", "@babel/types@^7.4.0", "@babel/types@^7.4.4", "@babel/types@^7.7.0":
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version "7.10.2"
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resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.10.2.tgz#30283be31cad0dbf6fb00bd40641ca0ea675172d"
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@ -1231,6 +1267,15 @@
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lodash "^4.17.19"
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to-fast-properties "^2.0.0"
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"@babel/types@^7.11.0":
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version "7.11.0"
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resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.11.0.tgz#2ae6bf1ba9ae8c3c43824e5861269871b206e90d"
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integrity sha512-O53yME4ZZI0jO1EVGtF1ePGl0LHirG4P1ibcD80XyzZcKhcMFeCXmh4Xb1ifGBIV233Qg12x4rBfQgA+tmOukA==
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dependencies:
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"@babel/helper-validator-identifier" "^7.10.4"
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lodash "^4.17.19"
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to-fast-properties "^2.0.0"
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"@cnakazawa/watch@^1.0.3":
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version "1.0.4"
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resolved "https://registry.yarnpkg.com/@cnakazawa/watch/-/watch-1.0.4.tgz#f864ae85004d0fcab6f50be9141c4da368d1656a"
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@ -4178,11 +4223,6 @@ estree-walker@^0.6.1:
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resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.6.1.tgz#53049143f40c6eb918b23671d1fe3219f3a1b362"
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integrity sha512-SqmZANLWS0mnatqbSfRP5g8OXZC12Fgg1IwNtLsyHDzJizORW4khDfjPqJZsemPWBB2uqykUah5YpQ6epsqC/w==
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estree-walker@^0.9.0:
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version "0.9.0"
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resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.9.0.tgz#9116372f09c02fd88fcafb0c04343631012a0aa6"
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integrity sha512-12U47o7XHUX329+x3FzNVjCx3SHEzMF0nkDv7r/HnBzX/xNTKxajBk6gyygaxrAFtLj39219oMfbtxv4KpaOiA==
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esutils@^2.0.2:
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version "2.0.3"
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resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
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@ -4525,11 +4565,6 @@ flatted@^2.0.0:
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resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.2.tgz#4575b21e2bcee7434aa9be662f4b7b5f9c2b5138"
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integrity sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==
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flow-parser@0.57.3:
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version "0.57.3"
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resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.57.3.tgz#b8d241a1b1cbae043afa7976e39f269988d8fe34"
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integrity sha1-uNJBobHLrgQ6+nl2458mmYjY/jQ=
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flush-write-stream@^1.0.0:
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version "1.1.1"
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resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.1.1.tgz#8dd7d873a1babc207d94ead0c2e0e44276ebf2e8"
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