Upgrade Babel to self-host with beta.46 (#7784)

.babelignore

@@ -1,5 +0,0 @@
-# Ensure babel-register won't compile fixtures, or try to recompile compiled code.
-packages/*/test/fixtures
-packages/*/lib
-packages/babel-standalone/babel.js
-packages/babel-preset-env-standalone/babel-preset-env.js

Gulpfile.js

@@ -99,8 +99,6 @@ function buildRollup(packages) {
         plugins: [
           rollupBabel({
             envName: "babylon",
-            babelrc: false,
-            extends: "./.babelrc.js",
           }),
           rollupNodeResolve(),
         ],

babel.config.js

@@ -12,12 +12,14 @@ module.exports = function(api) {
   };
 
   let convertESM = true;
+  let ignoreLib = true;
 
   switch (env) {
     // Configs used during bundling builds.
     case "babylon":
     case "standalone":
       convertESM = false;
+      ignoreLib = false;
       break;
     case "production":
       // Config during builds before publish.
@@ -40,6 +42,15 @@ module.exports = function(api) {
 
   const config = {
     comments: false,
+    ignore: [
+      // These may not be strictly necessary with the newly-limited scope of
+      // babelrc searching, but including them for now because we had them
+      // in our .babelignore before.
+      "packages/*/test/fixtures",
+      ignoreLib ? "packages/*/lib" : null,
+      "packages/babel-standalone/babel.js",
+      "packages/babel-preset-env-standalone/babel-preset-env.js",
+    ].filter(Boolean),
     presets: [["@babel/env", envOpts]],
     plugins: [
       // TODO: Use @babel/preset-flow when

package.json

@@ -10,19 +10,19 @@
     "test": "make test"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.44",
-    "@babel/core": "7.0.0-beta.44",
-    "@babel/plugin-transform-modules-commonjs": "7.0.0-beta.44",
-    "@babel/preset-env": "7.0.0-beta.44",
-    "@babel/preset-flow": "7.0.0-beta.44",
-    "@babel/preset-stage-0": "7.0.0-beta.44",
-    "@babel/register": "7.0.0-beta.44",
+    "@babel/cli": "7.0.0-beta.46",
+    "@babel/core": "7.0.0-beta.46",
+    "@babel/plugin-transform-modules-commonjs": "7.0.0-beta.46",
+    "@babel/preset-env": "7.0.0-beta.46",
+    "@babel/preset-flow": "7.0.0-beta.46",
+    "@babel/preset-stage-0": "7.0.0-beta.46",
+    "@babel/register": "7.0.0-beta.46",
     "babel-core": "^7.0.0-0",
     "babel-eslint": "^8.0.1",
     "babel-jest": "^22.4.1",
     "babel-loader": "8.0.0-beta.0",
     "babel-plugin-transform-charcodes": "^0.1.0",
-    "babylon": "7.0.0-beta.44",
+    "babylon": "7.0.0-beta.46",
     "browserify": "^13.1.1",
     "bundle-collapser": "^1.2.1",
     "chalk": "^2.3.2",

packages/babel-core/test/api.js

@@ -12,11 +12,35 @@ function assertNotIgnored(result) {
   expect(result.ignored).toBeFalsy();
 }
 
+function transform(code, opts) {
+  return babel.transform(code, {
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
+function transformFile(filename, opts, cb) {
+  return babel.transformFile(
+    filename,
+    {
+      cwd: __dirname,
+      ...opts,
+    },
+    cb,
+  );
+}
+function transformFileSync(filename, opts) {
+  return babel.transformFileSync(filename, {
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
 // shim
 function transformAsync(code, opts) {
   return {
     then: function(resolve) {
-      resolve(babel.transform(code, opts));
+      resolve(transform(code, opts));
     },
   };
 }
@@ -32,7 +56,7 @@ describe("parser and generator options", function() {
   };
 
   function newTransform(string) {
-    return babel.transform(string, {
+    return transform(string, {
       ast: true,
       parserOpts: {
         parser: recast.parse,
@@ -48,7 +72,7 @@ describe("parser and generator options", function() {
   it("options", function() {
     const string = "original;";
     expect(newTransform(string).ast).toEqual(
-      babel.transform(string, { ast: true }).ast,
+      transform(string, { ast: true }).ast,
     );
     expect(newTransform(string).code).toBe(string);
   });
@@ -57,7 +81,7 @@ describe("parser and generator options", function() {
     const experimental = "var a: number = 1;";
 
     expect(newTransform(experimental).ast).toEqual(
-      babel.transform(experimental, {
+      transform(experimental, {
         ast: true,
         parserOpts: {
           plugins: ["flow"],
@@ -67,7 +91,7 @@ describe("parser and generator options", function() {
     expect(newTransform(experimental).code).toBe(experimental);
 
     function newTransformWithPlugins(string) {
-      return babel.transform(string, {
+      return transform(string, {
         ast: true,
         plugins: [__dirname + "/../../babel-plugin-syntax-flow"],
         parserOpts: {
@@ -80,7 +104,7 @@ describe("parser and generator options", function() {
     }
 
     expect(newTransformWithPlugins(experimental).ast).toEqual(
-      babel.transform(experimental, {
+      transform(experimental, {
         ast: true,
         parserOpts: {
           plugins: ["flow"],
@@ -94,7 +118,7 @@ describe("parser and generator options", function() {
     const experimental = "if (true) {\n  import a from 'a';\n}";
 
     expect(newTransform(experimental).ast).not.toBe(
-      babel.transform(experimental, {
+      transform(experimental, {
         ast: true,
         parserOpts: {
           allowImportExportEverywhere: true,
@@ -123,7 +147,7 @@ describe("api", function() {
       babelrc: false,
     };
     Object.freeze(options);
-    babel.transformFile(__dirname + "/fixtures/api/file.js", options, function(
+    transformFile(__dirname + "/fixtures/api/file.js", options, function(
       err,
       res,
     ) {
@@ -141,15 +165,14 @@ describe("api", function() {
     };
     Object.freeze(options);
     expect(
-      babel.transformFileSync(__dirname + "/fixtures/api/file.js", options)
-        .code,
+      transformFileSync(__dirname + "/fixtures/api/file.js", options).code,
     ).toBe("foo();");
     expect(options).toEqual({ babelrc: false });
   });
 
   it("options throw on falsy true", function() {
     return expect(function() {
-      babel.transform("", {
+      transform("", {
         plugins: [__dirname + "/../../babel-plugin-syntax-jsx", false],
       });
     }).toThrow(/.plugins\[1\] must be a string, object, function/);
@@ -170,7 +193,7 @@ describe("api", function() {
     let calledRaw = 0;
     let calledIntercept = 0;
 
-    babel.transform("function foo() { bar(foobar); }", {
+    transform("function foo() { bar(foobar); }", {
       wrapPluginVisitorMethod: function(pluginAlias, visitorType, callback) {
         if (pluginAlias !== "foobar") {
           return callback;
@@ -204,7 +227,7 @@ describe("api", function() {
     let aliasBaseType = null;
 
     function execTest(passPerPreset) {
-      return babel.transform("type Foo = number; let x = (y): Foo => y;", {
+      return transform("type Foo = number; let x = (y): Foo => y;", {
         sourceType: "script",
         passPerPreset: passPerPreset,
         presets: [
@@ -293,7 +316,7 @@ describe("api", function() {
     const oldEnv = process.env.BABEL_ENV;
     process.env.BABEL_ENV = "development";
 
-    const result = babel.transform("", {
+    const result = transform("", {
       cwd: path.join(__dirname, "fixtures", "config", "complex-plugin-config"),
       filename: path.join(
         __dirname,
@@ -348,7 +371,7 @@ describe("api", function() {
   });
 
   it("source map merging", function() {
-    const result = babel.transform(
+    const result = transform(
       [
         /* eslint-disable max-len */
         'function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }',
@@ -555,7 +578,7 @@ describe("api", function() {
     });
 
     it("default", function() {
-      const result = babel.transform("foo;", {
+      const result = transform("foo;", {
         env: {
           development: { comments: false },
         },
@@ -566,7 +589,7 @@ describe("api", function() {
 
     it("BABEL_ENV", function() {
       process.env.BABEL_ENV = "foo";
-      const result = babel.transform("foo;", {
+      const result = transform("foo;", {
         env: {
           foo: { comments: false },
         },
@@ -576,7 +599,7 @@ describe("api", function() {
 
     it("NODE_ENV", function() {
       process.env.NODE_ENV = "foo";
-      const result = babel.transform("foo;", {
+      const result = transform("foo;", {
         env: {
           foo: { comments: false },
         },
@@ -634,7 +657,7 @@ describe("api", function() {
     };
 
     it("only syntax plugin available", function(done) {
-      babel.transformFile(
+      transformFile(
         __dirname + "/fixtures/api/parsing-errors/only-syntax/file.js",
         options,
         function(err) {
@@ -651,7 +674,7 @@ describe("api", function() {
     });
 
     it("both syntax and transform plugin available", function(done) {
-      babel.transformFile(
+      transformFile(
         __dirname + "/fixtures/api/parsing-errors/syntax-and-transform/file.js",
         options,
         function(err) {

packages/babel-core/test/config-chain.js

@@ -1,11 +1,18 @@
 import fs from "fs";
 import path from "path";
-import { loadOptions } from "../lib";
+import { loadOptions as loadOptionsOrig } from "../lib";
 
 function fixture(...args) {
   return path.join(__dirname, "fixtures", "config", ...args);
 }
 
+function loadOptions(opts) {
+  return loadOptionsOrig({
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
 describe("buildConfigChain", function() {
   describe("test", () => {
     describe("single", () => {

packages/babel-core/test/option-manager.js

@@ -1,6 +1,13 @@
-import { loadOptions } from "../lib";
+import { loadOptions as loadOptionsOrig } from "../lib";
 import path from "path";
 
+function loadOptions(opts) {
+  return loadOptionsOrig({
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
 describe("option-manager", () => {
   it("throws for babel 5 plugin", () => {
     return expect(() => {

packages/babel-core/test/parse.js

@@ -22,7 +22,10 @@ describe("parse", function() {
     const input = fs.readFileSync(fixture("input.js"), "utf8");
     const output = require(fixture("output.json"));
 
-    const result = parse(input, { parserOpts: { plugins: ["decorators"] } });
+    const result = parse(input, {
+      parserOpts: { plugins: ["decorators"] },
+      cwd: fixture(),
+    });
     expect(JSON.parse(JSON.stringify(result))).toEqual(output);
   });
 });

packages/babel-core/test/path.js

@@ -6,6 +6,7 @@ describe("traversal path", function() {
     const expectCode = "function foo() {}";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -24,6 +25,7 @@ describe("traversal path", function() {
     const expectCode = "var fn = () => true;";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -53,6 +55,7 @@ describe("traversal path", function() {
     const expectCode = "var fn = () => { return true; }";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -74,6 +77,7 @@ describe("traversal path", function() {
     const expectCode = "for (KEY in right);";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -104,6 +108,7 @@ describe("traversal path", function() {
     const expectCode = "for (var KEY in right);";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -125,6 +130,7 @@ describe("traversal path", function() {
     const expectCode = "for (KEY;;);";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {
@@ -155,6 +161,7 @@ describe("traversal path", function() {
     const expectCode = "for (var KEY;;);";
 
     const actualCode = transform(expectCode, {
+      cwd: __dirname,
       plugins: [
         new Plugin({
           visitor: {

packages/babel-helper-module-imports/test/index.js

@@ -10,6 +10,7 @@ function test(sourceType, opts, initializer, expectedCode) {
   }
 
   const result = babel.transform("", {
+    cwd: __dirname,
     sourceType,
     filename: "example" + (sourceType === "module" ? ".mjs" : ".js"),
     babelrc: false,

packages/babel-helper-transform-fixture-test-runner/src/index.js

@@ -88,14 +88,21 @@ export function runCodeInTestContext(
     exports: {},
   };
 
-  // Expose the test options as "opts", but otherwise run the test in a CommonJS-like environment.
-  // Note: This isn't doing .call(module.exports, ...) because some of our tests currently
-  // rely on 'this === global'.
-  const src = `(function(exports, require, module, __filename, __dirname, opts) {${code}\n});`;
-  return vm.runInContext(src, testContext, {
-    filename,
-    displayErrors: true,
-  })(module.exports, req, module, filename, dirname, opts);
+  const oldCwd = process.cwd();
+  try {
+    if (opts.filename) process.chdir(path.dirname(opts.filename));
+
+    // Expose the test options as "opts", but otherwise run the test in a CommonJS-like environment.
+    // Note: This isn't doing .call(module.exports, ...) because some of our tests currently
+    // rely on 'this === global'.
+    const src = `(function(exports, require, module, __filename, __dirname, opts) {${code}\n});`;
+    return vm.runInContext(src, testContext, {
+      filename,
+      displayErrors: true,
+    })(module.exports, req, module, filename, dirname, opts);
+  } finally {
+    process.chdir(oldCwd);
+  }
 }
 
 function wrapPackagesArray(type, names, optionsDir) {
@@ -320,6 +327,7 @@ function run(task) {
   function getOpts(self) {
     const newOpts = merge(
       {
+        cwd: path.dirname(self.filename),
         filename: self.loc,
         filenameRelative: self.filename,
         sourceFileName: self.filename,

packages/babel-plugin-transform-modules-commonjs/test/copied-nodes.js

@@ -4,6 +4,7 @@ test("Doesn't use the same object for two different nodes in the AST", function(
   const code = 'import Foo from "bar"; Foo; Foo;';
 
   const ast = babel.transform(code, {
+    cwd: __dirname,
     ast: true,
     plugins: [[require("../"), { loose: true }]],
   }).ast;

packages/babel-plugin-transform-modules-commonjs/test/esmodule-flag.js

@@ -19,6 +19,7 @@ test("Re-export doesn't overwrite __esModule flag", function() {
   context.exports = context.module.exports;
 
   code = babel.transform(code, {
+    cwd: __dirname,
     plugins: [[require("../"), { loose: true }]],
     ast: false,
   }).code;

packages/babel-preset-es2015/test/index.js

@@ -1,6 +1,13 @@
 import * as babel from "@babel/core";
 import es2015 from "../lib";
 
+function transform(code, opts) {
+  return babel.transform(code, {
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
 describe("es2015 preset", function() {
   it("does throw clear error when no options passed for Babel 6", () => {
     expect(function() {
@@ -12,7 +19,7 @@ describe("es2015 preset", function() {
     describe("loose", function() {
       it("throws on non-boolean value", function() {
         expect(function() {
-          babel.transform("", { presets: [[es2015, { loose: 1 }]] });
+          transform("", { presets: [[es2015, { loose: 1 }]] });
         }).toThrow(/must be a boolean/);
       });
     });
@@ -20,7 +27,7 @@ describe("es2015 preset", function() {
     describe("spec", function() {
       it("throws on non-boolean value", function() {
         expect(function() {
-          babel.transform("", { presets: [[es2015, { spec: 1 }]] });
+          transform("", { presets: [[es2015, { spec: 1 }]] });
         }).toThrow(/must be a boolean/);
       });
     });
@@ -28,31 +35,31 @@ describe("es2015 preset", function() {
     describe("modules", function() {
       it("doesn't throw when passing one false", function() {
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: false }]] });
+          transform("", { presets: [[es2015, { modules: false }]] });
         }).not.toThrow();
       });
 
       it("doesn't throw when passing one of: 'commonjs', 'amd', 'umd', 'systemjs", function() {
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: "commonjs" }]] });
+          transform("", { presets: [[es2015, { modules: "commonjs" }]] });
         }).not.toThrow();
 
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: "amd" }]] });
+          transform("", { presets: [[es2015, { modules: "amd" }]] });
         }).not.toThrow();
 
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: "umd" }]] });
+          transform("", { presets: [[es2015, { modules: "umd" }]] });
         }).not.toThrow();
 
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: "systemjs" }]] });
+          transform("", { presets: [[es2015, { modules: "systemjs" }]] });
         }).not.toThrow();
       });
 
       it("throws when passing neither false nor one of: 'commonjs', 'amd', 'umd', 'systemjs'", function() {
         expect(function() {
-          babel.transform("", { presets: [[es2015, { modules: 1 }]] });
+          transform("", { presets: [[es2015, { modules: 1 }]] });
         }).toThrow();
       });
     });

scripts/gulp-tasks.js

@@ -42,15 +42,6 @@ function webpackBuild(opts) {
             // Use the bundled config so that module syntax is passed through
             // for Webpack.
             envName: "standalone",
-
-            // Some of the node_modules may have their own "babel" section in
-            // their project.json (or a ".babelrc" file). We need to ignore
-            // those as we're using our own Babel options.
-            babelrc: false,
-
-            // We explicitly load the `.babelrc.js` file since searching is
-            // turned off, but we still want to use the main config.
-            extends: "./.babelrc.js",
           },
         },
       ],