b3acf9100e
The source repository for regenerator-runtime can now be found at
https://github.com/facebook/regenerator/tree/master/packages/regenerator-runtime
This also removes the babel-regenerator-runtime package, now that the only
difference between it and regenerator-runtime has been resolved:
bc8d2d672c
131 lines
3.7 KiB
JavaScript
131 lines
3.7 KiB
JavaScript
var outputFile = require("output-file-sync");
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var each = require("lodash/each");
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var fs = require("fs");
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var _ = require("lodash");
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var coreDefinitions = require("babel-plugin-transform-runtime").definitions;
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var paths = ["is-iterable", "get-iterator"];
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each(coreDefinitions.builtins, function (path) {
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paths.push(path);
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});
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each(coreDefinitions.methods, function (props) {
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each(props, function (path) {
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paths.push(path);
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});
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});
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each(paths, function (path) {
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writeFile("core-js/" + path + ".js", defaultify('require("core-js/library/fn/' + path + '")'));
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});
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// Should be removed in the next major release:
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var legacy = {
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"string/pad-left": "string/pad-start",
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"string/pad-right": "string/pad-end"
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};
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each(legacy, function (value, key) {
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writeFile("core-js/" + key + ".js", defaultify('require("core-js/library/fn/' + value + '")'));
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});
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var template = require("babel-template");
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var helpers = require("babel-helpers");
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var babel = require("../../babel-core");
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var util = require("../../babel-core/lib/util");
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var t = require("../../babel-types");
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function relative(filename) {
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return __dirname + "/../" + filename;
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}
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function readFile(filename, shouldDefaultify) {
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var file = fs.readFileSync(require.resolve(filename), "utf8");
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if (shouldDefaultify) {
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file += "\n" + defaultify("module.exports") + "\n";
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}
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return file;
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}
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function defaultify(name) {
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return 'module.exports = { "default": ' + name + ', __esModule: true };';
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}
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function writeRootFile(filename, content) {
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filename = relative(filename);
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//console.log(filename);
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outputFile(filename, content);
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}
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function writeFile(filename, content) {
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return writeRootFile(filename, content);
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}
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var transformOpts = {
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presets: [
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require("../../babel-preset-es2015")
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],
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plugins: [
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require("../../babel-plugin-transform-runtime"),
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[require("../../babel-plugin-transform-es2015-modules-commonjs"), {loose: true, strict: false}]
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]
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};
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function buildRuntimeRewritePlugin(relativePath, helperName) {
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return {
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pre: function (file){
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var original = file.get("helperGenerator");
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file.set("helperGenerator", function(name){
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// make sure that helpers won't insert circular references to themselves
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if (name === helperName) return;
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return original(name);
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});
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},
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visitor: {
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CallExpression: function(path){
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if (!path.get("callee").isIdentifier({name: "require"}) ||
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path.get("arguments").length !== 1 ||
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!path.get("arguments")[0].isStringLiteral()) return;
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// replace any reference to babel-runtime with a relative path
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path.get("arguments")[0].node.value = path.get("arguments")[0].node.value
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.replace(/^babel-runtime/, relativePath);
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}
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}
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};
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}
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function selfContainify(path, code) {
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return babel.transform(code, {
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presets: transformOpts.presets,
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plugins: transformOpts.plugins.concat([buildRuntimeRewritePlugin(path, null)])
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}).code;
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}
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function buildHelper(helperName) {
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var tree = t.program([
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t.exportDefaultDeclaration(helpers.get(helperName))
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]);
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return babel.transformFromAst(tree, null, {
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presets: transformOpts.presets,
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plugins: transformOpts.plugins.concat([buildRuntimeRewritePlugin("..", helperName)])
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}).code;
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}
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each(helpers.list, function (helperName) {
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writeFile("helpers/" + helperName + ".js", buildHelper(helperName));
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// compat
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var helperAlias = _.kebabCase(helperName);
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var content = "module.exports = require(\"./" + helperName + ".js\");";
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writeFile("helpers/_" + helperAlias + ".js", content);
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if (helperAlias !== helperName) writeFile("helpers/" + helperAlias + ".js", content);
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});
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