844 lines
22 KiB
JavaScript
844 lines
22 KiB
JavaScript
import * as babel from "../lib/index";
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import buildExternalHelpers from "../lib/tools/build-external-helpers";
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import sourceMap from "source-map";
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import assert from "assert";
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import path from "path";
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import Plugin from "../lib/config/plugin";
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import generator from "babel-generator";
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function assertIgnored(result) {
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assert.ok(!result);
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}
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function assertNotIgnored(result) {
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assert.ok(!result.ignored);
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}
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// shim
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function transformAsync(code, opts) {
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return {
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then: function(resolve) {
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resolve(babel.transform(code, opts));
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},
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};
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}
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describe("parser and generator options", function() {
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const recast = {
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parse: function(code, opts) {
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return opts.parser.parse(code);
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},
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print: function(ast) {
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return generator(ast);
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},
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};
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function newTransform(string) {
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return babel.transform(string, {
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parserOpts: {
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parser: recast.parse,
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plugins: ["flow"],
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allowImportExportEverywhere: true,
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},
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generatorOpts: {
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generator: recast.print,
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},
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});
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}
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it("options", function() {
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const string = "original;";
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assert.deepEqual(newTransform(string).ast, babel.transform(string).ast);
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assert.equal(newTransform(string).code, string);
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});
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it("experimental syntax", function() {
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const experimental = "var a: number = 1;";
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assert.deepEqual(
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newTransform(experimental).ast,
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babel.transform(experimental, {
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parserOpts: {
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plugins: ["flow"],
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},
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}).ast,
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);
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assert.equal(newTransform(experimental).code, experimental);
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function newTransformWithPlugins(string) {
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return babel.transform(string, {
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plugins: [__dirname + "/../../babel-plugin-syntax-flow"],
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parserOpts: {
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parser: recast.parse,
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},
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generatorOpts: {
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generator: recast.print,
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},
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});
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}
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assert.deepEqual(
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newTransformWithPlugins(experimental).ast,
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babel.transform(experimental, {
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parserOpts: {
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plugins: ["flow"],
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},
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}).ast,
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);
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assert.equal(newTransformWithPlugins(experimental).code, experimental);
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});
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it("other options", function() {
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const experimental = "if (true) {\n import a from 'a';\n}";
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assert.notEqual(
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newTransform(experimental).ast,
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babel.transform(experimental, {
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parserOpts: {
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allowImportExportEverywhere: true,
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},
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}).ast,
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);
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assert.equal(newTransform(experimental).code, experimental);
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});
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});
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describe("api", function() {
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it("analyze", function() {
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assert.equal(babel.analyse("foobar;").marked.length, 0);
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assert.equal(
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babel.analyse("foobar;", {
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plugins: [
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new Plugin({
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visitor: {
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Program: function(path) {
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path.mark("category", "foobar");
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},
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},
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}),
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],
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}).marked[0].message,
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"foobar",
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);
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assert.equal(
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babel.analyse(
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"foobar;",
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{},
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{
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Program: function(path) {
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path.mark("category", "foobar");
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},
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},
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).marked[0].message,
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"foobar",
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);
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});
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it("exposes the resolvePlugin method", function() {
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assert.throws(
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() => babel.resolvePlugin("nonexistent-plugin"),
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/Cannot find module 'babel-plugin-nonexistent-plugin'/,
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);
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});
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it("exposes the resolvePreset method", function() {
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assert.throws(
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() => babel.resolvePreset("nonexistent-preset"),
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/Cannot find module 'babel-preset-nonexistent-preset'/,
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);
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});
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it("transformFile", function(done) {
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babel.transformFile(
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__dirname + "/fixtures/api/file.js",
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{
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babelrc: false,
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},
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function(err, res) {
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if (err) return done(err);
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assert.equal(res.code, "foo();");
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done();
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},
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);
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});
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it("transformFileSync", function() {
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assert.equal(
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babel.transformFileSync(__dirname + "/fixtures/api/file.js", {
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babelrc: false,
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}).code,
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"foo();",
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);
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});
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it("options throw on falsy true", function() {
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return assert.throws(function() {
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babel.transform("", {
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plugins: [__dirname + "/../../babel-plugin-syntax-jsx", false],
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});
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}, /Error: \[BABEL\] unknown: Unexpected falsy value: false/);
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});
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it("options merge backwards", function() {
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return transformAsync("", {
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presets: [__dirname + "/../../babel-preset-es2015"],
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plugins: [__dirname + "/../../babel-plugin-syntax-jsx"],
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}).then(function(result) {
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assert.ok(
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result.options.plugins[0][0].manipulateOptions
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.toString()
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.indexOf("jsx") >= 0,
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);
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});
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});
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it("option wrapPluginVisitorMethod", function() {
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let calledRaw = 0;
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let calledIntercept = 0;
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babel.transform("function foo() { bar(foobar); }", {
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wrapPluginVisitorMethod: function(pluginAlias, visitorType, callback) {
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if (pluginAlias !== "foobar") {
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return callback;
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}
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assert.equal(visitorType, "enter");
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return function() {
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calledIntercept++;
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return callback.apply(this, arguments);
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};
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},
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plugins: [
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new Plugin({
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name: "foobar",
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visitor: {
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"Program|Identifier": function() {
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calledRaw++;
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},
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},
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}),
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],
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});
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assert.equal(calledRaw, 4);
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assert.equal(calledIntercept, 4);
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});
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it("pass per preset", function() {
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let aliasBaseType = null;
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function execTest(passPerPreset) {
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return babel.transform("type Foo = number; let x = (y): Foo => y;", {
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passPerPreset: passPerPreset,
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presets: [
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// First preset with our plugin, "before"
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function() {
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return {
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plugins: [
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new Plugin({
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visitor: {
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Function: function(path) {
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const alias = path.scope
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.getProgramParent()
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.path.get("body")[0].node;
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if (!babel.types.isTypeAlias(alias)) return;
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// In case of `passPerPreset` being `false`, the
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// alias node is already removed by Flow plugin.
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if (!alias) {
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return;
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}
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// In case of `passPerPreset` being `true`, the
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// alias node should still exist.
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aliasBaseType = alias.right.type; // NumberTypeAnnotation
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},
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},
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}),
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],
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};
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},
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// ES2015 preset
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require(__dirname + "/../../babel-preset-es2015"),
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// Third preset for Flow.
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function() {
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return {
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plugins: [
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require(__dirname + "/../../babel-plugin-syntax-flow"),
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require(__dirname +
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"/../../babel-plugin-transform-flow-strip-types"),
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],
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};
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},
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],
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});
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}
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// 1. passPerPreset: true
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let result = execTest(true);
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assert.equal(aliasBaseType, "NumberTypeAnnotation");
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assert.deepEqual(
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[
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'"use strict";',
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"",
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"var x = function x(y) {",
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" return y;",
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"};",
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].join("\n"),
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result.code,
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);
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// 2. passPerPreset: false
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aliasBaseType = null;
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result = execTest(false);
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assert.equal(aliasBaseType, null);
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assert.deepEqual(
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[
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'"use strict";',
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"",
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"var x = function x(y) {",
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" return y;",
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"};",
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].join("\n"),
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result.code,
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);
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});
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it("complex plugin and preset ordering", function() {
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function pushPlugin(str) {
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return {
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visitor: {
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Program(path) {
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path.pushContainer(
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"body",
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babel.types.expressionStatement(babel.types.identifier(str)),
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);
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},
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},
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};
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}
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function pushPreset(str) {
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return { plugins: [pushPlugin(str)] };
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}
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const result = babel.transform("", {
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filename: path.join(
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__dirname,
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"fixtures",
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"config",
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"complex-plugin-config",
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"file.js",
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),
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presets: [pushPreset("argone"), pushPreset("argtwo")],
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env: {
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development: {
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passPerPreset: true,
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presets: [pushPreset("argthree"), pushPreset("argfour")],
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env: {
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development: {
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passPerPreset: true,
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presets: [pushPreset("argfive"), pushPreset("argsix")],
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},
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},
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},
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},
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});
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assert.equal(
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result.code,
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[
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"argtwo;",
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"argone;",
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"eleven;",
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"twelve;",
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"one;",
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"two;",
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"five;",
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"six;",
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"three;",
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"four;",
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"seventeen;",
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"eighteen;",
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"nineteen;",
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"twenty;",
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"thirteen;",
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"fourteen;",
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"fifteen;",
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"sixteen;",
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"argfive;",
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"argsix;",
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"argthree;",
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"argfour;",
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"seven;",
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"eight;",
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"nine;",
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"ten;",
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].join("\n"),
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);
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});
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it("source map merging", function() {
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const result = babel.transform(
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[
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/* eslint-disable max-len */
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'function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }',
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"",
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"let Foo = function Foo() {",
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" _classCallCheck(this, Foo);",
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"};",
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"",
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"//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInN0ZG91dCJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOztJQUFNLEdBQUcsWUFBSCxHQUFHO3dCQUFILEdBQUciLCJmaWxlIjoidW5kZWZpbmVkIiwic291cmNlc0NvbnRlbnQiOlsiY2xhc3MgRm9vIHt9XG4iXX0=",
|
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/* eslint-enable max-len */
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].join("\n"),
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{
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sourceMap: true,
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},
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);
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assert.deepEqual(
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[
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"function _classCallCheck(instance, Constructor) {",
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" if (!(instance instanceof Constructor)) {",
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' throw new TypeError("Cannot call a class as a function");',
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" }",
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"}",
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"",
|
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"let Foo = function Foo() {",
|
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" _classCallCheck(this, Foo);",
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"};",
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].join("\n"),
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result.code,
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);
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const consumer = new sourceMap.SourceMapConsumer(result.map);
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assert.deepEqual(
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consumer.originalPositionFor({
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line: 7,
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column: 4,
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}),
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{
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name: null,
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source: "stdout",
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line: 1,
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column: 6,
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},
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);
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});
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it("code option false", function() {
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return transformAsync("foo('bar');", { code: false }).then(function(
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result,
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) {
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assert.ok(!result.code);
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});
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});
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it("ast option false", function() {
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return transformAsync("foo('bar');", { ast: false }).then(function(result) {
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assert.ok(!result.ast);
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});
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});
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it("auxiliaryComment option", function() {
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return transformAsync("class Foo {}", {
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auxiliaryCommentBefore: "before",
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auxiliaryCommentAfter: "after",
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plugins: [
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function(babel) {
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const t = babel.types;
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return {
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visitor: {
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Program: function(path) {
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path.unshiftContainer(
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"body",
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t.expressionStatement(t.identifier("start")),
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);
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path.pushContainer(
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"body",
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t.expressionStatement(t.identifier("end")),
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);
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},
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},
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};
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},
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],
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}).then(function(result) {
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assert.equal(
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result.code,
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"/*before*/start;\n/*after*/class Foo {}\n/*before*/end;\n/*after*/",
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);
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});
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});
|
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|
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it("modules metadata", function() {
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return Promise.all([
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// eslint-disable-next-line max-len
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transformAsync(
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'import { externalName as localName } from "external";',
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).then(function(result) {
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assert.deepEqual(result.metadata.modules.imports[0], {
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source: "external",
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imported: ["externalName"],
|
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specifiers: [
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{
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kind: "named",
|
|
imported: "externalName",
|
|
local: "localName",
|
|
},
|
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],
|
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});
|
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}),
|
|
|
|
transformAsync('import * as localName2 from "external";').then(function(
|
|
result,
|
|
) {
|
|
assert.deepEqual(result.metadata.modules.imports[0], {
|
|
source: "external",
|
|
imported: ["*"],
|
|
specifiers: [
|
|
{
|
|
kind: "namespace",
|
|
local: "localName2",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('import localName3 from "external";').then(function(
|
|
result,
|
|
) {
|
|
assert.deepEqual(result.metadata.modules.imports[0], {
|
|
source: "external",
|
|
imported: ["default"],
|
|
specifiers: [
|
|
{
|
|
kind: "named",
|
|
imported: "default",
|
|
local: "localName3",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('import localName from "./array";', {
|
|
resolveModuleSource: function() {
|
|
return "override-source";
|
|
},
|
|
}).then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.imports, [
|
|
{
|
|
source: "override-source",
|
|
imported: ["default"],
|
|
specifiers: [
|
|
{
|
|
kind: "named",
|
|
imported: "default",
|
|
local: "localName",
|
|
},
|
|
],
|
|
},
|
|
]);
|
|
}),
|
|
|
|
transformAsync('export * as externalName1 from "external";', {
|
|
plugins: [require("../../babel-plugin-syntax-export-extensions")],
|
|
}).then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["externalName1"],
|
|
specifiers: [
|
|
{
|
|
kind: "external-namespace",
|
|
exported: "externalName1",
|
|
source: "external",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('export externalName2 from "external";', {
|
|
plugins: [require("../../babel-plugin-syntax-export-extensions")],
|
|
}).then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["externalName2"],
|
|
specifiers: [
|
|
{
|
|
kind: "external",
|
|
local: "externalName2",
|
|
exported: "externalName2",
|
|
source: "external",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync("export function namedFunction() {}").then(function(
|
|
result,
|
|
) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["namedFunction"],
|
|
specifiers: [
|
|
{
|
|
kind: "local",
|
|
local: "namedFunction",
|
|
exported: "namedFunction",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('export var foo = "bar";').then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["foo"],
|
|
specifiers: [
|
|
{
|
|
kind: "local",
|
|
local: "foo",
|
|
exported: "foo",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync("export { localName as externalName3 };").then(function(
|
|
result,
|
|
) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["externalName3"],
|
|
specifiers: [
|
|
{
|
|
kind: "local",
|
|
local: "localName",
|
|
exported: "externalName3",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('export { externalName4 } from "external";').then(function(
|
|
result,
|
|
) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["externalName4"],
|
|
specifiers: [
|
|
{
|
|
kind: "external",
|
|
local: "externalName4",
|
|
exported: "externalName4",
|
|
source: "external",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync('export * from "external";').then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: [],
|
|
specifiers: [
|
|
{
|
|
kind: "external-all",
|
|
source: "external",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
|
|
transformAsync(
|
|
"export default function defaultFunction() {}",
|
|
).then(function(result) {
|
|
assert.deepEqual(result.metadata.modules.exports, {
|
|
exported: ["defaultFunction"],
|
|
specifiers: [
|
|
{
|
|
kind: "local",
|
|
local: "defaultFunction",
|
|
exported: "default",
|
|
},
|
|
],
|
|
});
|
|
}),
|
|
]);
|
|
});
|
|
|
|
it("ignore option", function() {
|
|
return Promise.all([
|
|
transformAsync("", {
|
|
ignore: ["/foo"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/foo/node_modules"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/foo/node_modules/*"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/foo/**/*"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/foo/node_modules/*.bar"],
|
|
filename: "/foo/node_modules/foo.bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/foo/node_modules/*.foo"],
|
|
filename: "/foo/node_modules/foo.bar",
|
|
}).then(assertNotIgnored),
|
|
|
|
transformAsync("", {
|
|
ignore: ["/bar/**/*"],
|
|
filename: "/foo/node_modules/foo.bar",
|
|
}).then(assertNotIgnored),
|
|
]);
|
|
});
|
|
|
|
it("only option", function() {
|
|
return Promise.all([
|
|
transformAsync("", {
|
|
only: ["/foo"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertNotIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/*"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertNotIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/node_modules"],
|
|
filename: "/foo/node_modules/bar",
|
|
}).then(assertNotIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/node_modules/*.bar"],
|
|
filename: "/foo/node_modules/foo.bar",
|
|
}).then(assertNotIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/node_modules"],
|
|
filename: "/foo/node_module/bar",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/node_modules"],
|
|
filename: "/bar/node_modules/foo",
|
|
}).then(assertIgnored),
|
|
|
|
transformAsync("", {
|
|
only: ["/foo/node_modules/*.bar"],
|
|
filename: "/foo/node_modules/bar.foo",
|
|
}).then(assertIgnored),
|
|
]);
|
|
});
|
|
|
|
describe("env option", function() {
|
|
const oldBabelEnv = process.env.BABEL_ENV;
|
|
const oldNodeEnv = process.env.NODE_ENV;
|
|
|
|
setup(function() {
|
|
// Tests need to run with the default and specific values for these. They
|
|
// need to be cleared for each test.
|
|
delete process.env.BABEL_ENV;
|
|
delete process.env.NODE_ENV;
|
|
});
|
|
|
|
suiteTeardown(function() {
|
|
process.env.BABEL_ENV = oldBabelEnv;
|
|
process.env.NODE_ENV = oldNodeEnv;
|
|
});
|
|
|
|
it("default", function() {
|
|
const result = babel.transform("foo;", {
|
|
env: {
|
|
development: { code: false },
|
|
},
|
|
});
|
|
|
|
assert.equal(result.code, undefined);
|
|
});
|
|
|
|
it("BABEL_ENV", function() {
|
|
process.env.BABEL_ENV = "foo";
|
|
const result = babel.transform("foo;", {
|
|
env: {
|
|
foo: { code: false },
|
|
},
|
|
});
|
|
assert.equal(result.code, undefined);
|
|
});
|
|
|
|
it("NODE_ENV", function() {
|
|
process.env.NODE_ENV = "foo";
|
|
const result = babel.transform("foo;", {
|
|
env: {
|
|
foo: { code: false },
|
|
},
|
|
});
|
|
assert.equal(result.code, undefined);
|
|
});
|
|
});
|
|
|
|
it("resolveModuleSource option", function() {
|
|
/* eslint-disable max-len */
|
|
const actual =
|
|
'import foo from "foo-import-default";\nimport "foo-import-bare";\nexport { foo } from "foo-export-named";';
|
|
const expected =
|
|
'import foo from "resolved/foo-import-default";\nimport "resolved/foo-import-bare";\nexport { foo } from "resolved/foo-export-named";';
|
|
/* eslint-enable max-len */
|
|
|
|
return transformAsync(actual, {
|
|
resolveModuleSource: function(originalSource) {
|
|
return "resolved/" + originalSource;
|
|
},
|
|
}).then(function(result) {
|
|
assert.equal(result.code.trim(), expected);
|
|
});
|
|
});
|
|
|
|
describe("buildExternalHelpers", function() {
|
|
it("all", function() {
|
|
const script = buildExternalHelpers();
|
|
assert.ok(script.indexOf("classCallCheck") >= -1);
|
|
assert.ok(script.indexOf("inherits") >= 0);
|
|
});
|
|
|
|
it("whitelist", function() {
|
|
const script = buildExternalHelpers(["inherits"]);
|
|
assert.ok(script.indexOf("classCallCheck") === -1);
|
|
assert.ok(script.indexOf("inherits") >= 0);
|
|
});
|
|
|
|
it("empty whitelist", function() {
|
|
const script = buildExternalHelpers([]);
|
|
assert.ok(script.indexOf("classCallCheck") === -1);
|
|
assert.ok(script.indexOf("inherits") === -1);
|
|
});
|
|
|
|
it("underscored", function() {
|
|
const script = buildExternalHelpers(["typeof"]);
|
|
assert.ok(script.indexOf("typeof") >= 0);
|
|
});
|
|
});
|
|
});
|