v7.5.1

* chore: update docs babel-preset-stage readme [ci skip]

* fix:  by PR request change [ci skip]

.circleci/config.yml

@@ -34,7 +34,7 @@ jobs:
   build:
     working_directory: ~/babel
     docker:
-      - image: circleci/node:11
+      - image: circleci/node:12
     steps:
       - checkout
       - restore-cache: *restore-yarn-cache
@@ -42,7 +42,7 @@ jobs:
       - run: yarn --version
       - run: make test-ci-coverage
       # Builds babel-standalone with the regular Babel config
-      - run: make build
+      - run: IS_PUBLISH=true make build
       # test-ci-coverage doesn't test babel-standalone, as trying to gather coverage
       # data for a JS file that's several megabytes large is bound to fail. Here,
       # we just run the babel-standalone test separately.

.editorconfig

@@ -10,5 +10,8 @@ end_of_line = lf
 indent_style = space
 indent_size = 2
 
+[Makefile]
+indent_style = tab
+
 [*.{md,markdown}]
 trim_trailing_whitespace = false

.eslintignore

@@ -5,8 +5,8 @@ package.json
 lerna.json
 packages/babel-runtime
 !packages/babel-plugin-transform-runtime/scripts
-!packages/babel-runtime-corejs2/core-js.js
 packages/babel-runtime-corejs2
+packages/babel-runtime-corejs3
 packages/*/node_modules
 packages/*/lib
 packages/*/dist

.eslintrc.json

@@ -1,7 +1,7 @@
 {
   "root": true,
+  "plugins": ["prettier", "@babel/development", "import"],
   "extends": "babel",
-  "plugins": ["local-rules", "prettier"],
   "rules": {
     "prettier/prettier": "error"
   },
@@ -12,8 +12,10 @@
     {
       "files": ["packages/*/src/**/*.js", "codemods/*/src/**/*.js"],
       "rules": {
-        "local-rules/no-undefined-identifier": "error",
-        "local-rules/no-deprecated-clone": "error"
+        "@babel/development/no-undefined-identifier": "error",
+        "@babel/development/no-deprecated-clone": "error",
+        "import/no-extraneous-dependencies": "error",
+        "guard-for-in": "error"
       }
     },
     {
@@ -31,7 +33,8 @@
       "files": ["packages/babel-plugin-*/src/index.js"],
       "excludedFiles": ["packages/babel-plugin-transform-regenerator/**/*.js"],
       "rules": {
-        "local-rules/plugin-name": "error"
+        "@babel/development/plugin-name": "error",
+        "eqeqeq": ["error", "always", { "null": "ignore" }]
       }
     }
   ]

.github/CHANGELOG-6to5.md

@@ -84,7 +84,7 @@
   * More performance improvements.
   * Parsing is now ~30% faster thanks to [marijnh/acorn@7264bc0178e7e6af7cfe02e9e0c6b26ee0e6007f](https://github.com/marijnh/acorn/commit/7264bc0178e7e6af7cfe02e9e0c6b26ee0e6007f).
  * **New Feature**
-  * Optional `es6.blockScopingTDZ` is now completely functional and handles all edgecases.
+  * Optional `es6.blockScopingTDZ` is now completely functional and handles all edge cases.
   * `super` in object literals.
   * Tail call optimisation. Thanks [@RReverser](https://github.com/RReverser)!
 
@@ -474,7 +474,7 @@
  * **Polish**
   * Rest parameters now allocate the array before populating.
  * **Internal**
-  * `for...in` loops have been changed to optimized `for` loops - better performance and no enumeration of protoype keys.
+  * `for...in` loops have been changed to optimized `for` loops - better performance and no enumeration of prototype keys.
   * Parts of the code generator have now been optimized thanks to [gaearon](https://github.com/gaearon).
 
 ## 2.12.3
@@ -643,7 +643,7 @@
 
  * **Bug Fix**
   * Better handling of number literal property keys.
-  * Handle `NewExpression` paren insertion edegcases better.
+  * Handle `NewExpression` paren insertion edge cases better.
  * **Internal**
   * Fix incorrect AST node `identifier("this")`.
   * Better `toIdentifier` method that handles reserved words.
@@ -850,7 +850,7 @@
 
 ## 1.14.10
 
- * Fix let scoping unneccesary override.
+ * Fix let scoping unnecessary override.
 
 ## 1.14.6
 
@@ -973,7 +973,7 @@
 
 ## 1.12.21
 
- * Fix unneccesary let scoping replacement.
+ * Fix unnecessary let scoping replacement.
  * Add `commonInterop` module formatter. Thanks [@Naddiseo](https://github.com/Naddiseo).
  * Fix `return` outside of function body bug. Thanks [@brentburg](https://github.com/brentburg).
  * Add more flexible option types.
@@ -1020,7 +1020,7 @@
 
 ## 1.12.12
 
- * Make scope tracker more reliable to handle all edgecases.
+ * Make scope tracker more reliable to handle all edge cases.
 
 ## 1.12.11
 

.github/CHANGELOG-v4.md

@@ -127,7 +127,7 @@
 ## 4.6.4
 
  * **Bug Fix**
-  * Fix `ForOfStatement` not proplery inheriting labels.
+  * Fix `ForOfStatement` not properly inheriting labels.
   * When in closure mode in block scoping transformer, properly check for variable shadowing.
  * **New Feature**
   * New `utility.inlineEnvironmentVariables` and `utility.inlineExpression` transformers.
@@ -153,7 +153,7 @@
  * **Spec Compliancy**
   * `for...of` now outputs in a lengthy `try...catch` this is to ensure spec compliancy in regards to iterator returns and abrupt completions. See [google/traceur-compiler#1773](https://github.com/google/traceur-compiler/issues/1773) and [babel/babel/#838](https://github.com/babel/babel/issues/838) for more information.
  * **Polish**
-  * Rest parameters that are only refered to via number properties on member expressions are desugared into a direct `arguments` reference. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
+  * Rest parameters that are only referred to via number properties on member expressions are desugared into a direct `arguments` reference. Thanks [@neVERberleRfellerER](https://github.com/neVERberleRfellerER)!
   * `$ babel` no longer exits on syntax errors.
  * **Internal**
   * Upgrade `browserify`.

.github/CHANGELOG-v5.md

@@ -262,8 +262,8 @@ Issues with publish process.
   * Register labels as bindings to fix undeclared variable checks.
  * **Polish**
   * Remove unnecessary string binary expressions when transforming template literals.
-  * Support module live bindings in arbitary positions not in Program statement position.
-  * Throw error when attemping to replace a `Program` root node with another node not of type `Program`.
+  * Support module live bindings in arbitrary positions not in Program statement position.
+  * Throw error when attempting to replace a `Program` root node with another node not of type `Program`.
   * Optimise rest parameters in spread element position and allocate rest array at the earliest common ancestor of all references.
   * Generate original number representation when value was not changed.
   * Check for invalid binding identifiers when generating inferred method names.
@@ -543,12 +543,12 @@ Issues with publish process.
  * **Internal**
   * Removed native inheritance support from classes.
   * Added `replaceWithSourceString` path API.
-  * Split up `es3.propertyLiterals` and `es3.memberExpressionLiterals` transformers to `minfication.propertyLiterals` and `es3.memberExpressionLiterals`.
+  * Split up `es3.propertyLiterals` and `es3.memberExpressionLiterals` transformers to `minification.propertyLiterals` and `es3.memberExpressionLiterals`.
 
 ## 5.2.6
 
  * **Internal**
-  * Fix transformer aliases being accidently set as deprecated ones.
+  * Fix transformer aliases being accidentally set as deprecated ones.
   * Expose `Pipeline` as `TransformerPipeline` instead.
 
 ## 5.2.5
@@ -824,10 +824,10 @@ Issues with publish process.
   * Save register cache on tick instead of `SIGINT`.
   * Enable strict mode on babel-node eval flag.
  * **Bug Fixes**
-  * Add support for live bindings. This change also increases the reliablity of export specifier renaming.
+  * Add support for live bindings. This change also increases the reliability of export specifier renaming.
   * Add support for super update and non equals assignment expressions.
   * Rename shadow constructor binding in classes.
-  * Seed next iteration bindings with previous fresh bindings when reassinging loop block scoped variables.
+  * Seed next iteration bindings with previous fresh bindings when reassigning loop block scoped variables.
   * Fix new expression spread referencing the wrong constructor.
   * Call `resolveModuleSource` on dynamic imports.
   * Added `param` to list of duplicate declaration kinds.
@@ -836,4 +836,3 @@ Issues with publish process.
   * ES7 Abstract References have been removed.
   * Experimental option has been removed in favor of a stage option.
   * Rename `returnUsedHelpers` to `metadataUsedHelpers`.
-  

.github/CHANGELOG-v6.md

@@ -19,7 +19,7 @@
 
 ## 6.26.0 (2017-08-16)
 
-> Backports for some folks (also other's when we accidently merged PRs from both 6.x/master)
+> Backports for some folks (also other's when we accidentally merged PRs from both 6.x/master)
 > Lesson learned: just use `master` and backport on another branch.
 
 #### :eyeglasses: Spec Compliancy
@@ -1767,7 +1767,7 @@ typeof Symbol.prototype === 'object'
   * [#3456](https://github.com/babel/babel/pull/3456) Use the real sourcemap API and handle input sourcemaps - Fixes [#7259](https://github.com/babel/babel/issues/7259). ([@loganfsmyth](https://github.com/loganfsmyth))
   * [#4507](https://github.com/babel/babel/pull/4507) Only set options in cli if different from default. ([@danez](https://github.com/danez))
 
-Fix an issue with defaults not being overidden. This was causing options like `comments: false` not to work correctly.
+Fix an issue with defaults not being overridden. This was causing options like `comments: false` not to work correctly.
 
   * [#4508](https://github.com/babel/babel/pull/4508) Support custom ports for V8 --inspect. ([@andykant](https://github.com/andykant))
   * [#4562](https://github.com/babel/babel/pull/4562) Fixes [#2299](https://github.com/babel/babel/issues/2299): Prevent REPL from printing implicit 'use strict'. ([@hzoo](https://github.com/hzoo))
@@ -2084,7 +2084,7 @@ Also added more tests and will update Babel to use the new preset options after
 
 ## v6.13.1 (2016-08-04)
 
-We had a regression in our new babel-preset-es2015@6.13.0 that made it unexpectedly backward-incompatible. This release introduces a new alternative plugin-options approach that is uglier but supports backward-compatiblity. Ideally new plugins would use the new `module.exports = function(babel, options){ }` approach and simple skip supporting `babel-core@<6.13.x`.
+We had a regression in our new babel-preset-es2015@6.13.0 that made it unexpectedly backward-incompatible. This release introduces a new alternative plugin-options approach that is uglier but supports backward-compatibility. Ideally new plugins would use the new `module.exports = function(babel, options){ }` approach and simple skip supporting `babel-core@<6.13.x`.
 
 #### Bug Fix
 * `babel-core`, `babel-preset-es2015`
@@ -2092,7 +2092,7 @@ We had a regression in our new babel-preset-es2015@6.13.0 that made it unexpecte
 
 ## v6.13.0 (2016-08-04)
 
-> Since the last release we've created https://github.com/babel/notes to track discussions on our slack and high level features/changes that could be added - definetely check it out if you're interested in Babel's development!
+> Since the last release we've created https://github.com/babel/notes to track discussions on our slack and high level features/changes that could be added - definitely check it out if you're interested in Babel's development!
 
 Some small but very important additions in this release:
 
@@ -3817,7 +3817,7 @@ Thanks to @samwgoldman for all the new flow support!
  * **New Feature**
   * Add support for `function.sent`.
  * **Internal**
-  * Bump `invariant` depenency version.
+  * Bump `invariant` dependency version.
  * **Polish**
   * Infer filename from the base directory when resolving plugins and presets.
   * Allow JSX pragma to be specified in line comments.
@@ -3887,7 +3887,7 @@ Thanks to @samwgoldman for all the new flow support!
 ## 6.1.2
 
  * **Bug Fix**
-  * Fix bug where the parser wouldn't allow typed annotated default parametesr in arrow functions.
+  * Fix bug where the parser wouldn't allow typed annotated default parameters in arrow functions.
   * Add existence check to `NodePath#has` to ensure safeness when making comparisons.
   * Protect against replacing a class expression with a name inferred version that would
     result in it never being transformed.
@@ -3976,7 +3976,7 @@ Thanks to @samwgoldman for all the new flow support!
   * Fix SystemJS module formatter exporting function parameters.
   * Ensure that invalid identifier JSX attribute keys are quoted when transforming to calls.
   * Fix ES3 property literal plugin.
-  * Fix parameters after defaults in arrow functions refering to the wrong `arguments`.
+  * Fix parameters after defaults in arrow functions referring to the wrong `arguments`.
 
 ## 6.0.13
 

.github/actions/create-release-tag/Dockerfile

@@ -0,0 +1,16 @@
+FROM debian:stable-slim
+
+LABEL "name"="create-release-tag"
+LABEL "version"="0.0.1"
+
+LABEL "com.github.actions.name"="Create release tag"
+LABEL "com.github.actions.description"="Creates a release tag equal to the last commit message"
+LABEL "com.github.actions.icon"="tag"
+LABEL "com.github.actions.color"="gray-dark"
+
+ADD entrypoint.sh /action/entrypoint.sh
+
+RUN chmod +x /action/entrypoint.sh
+RUN apt-get update && apt-get install -y --no-install-recommends git
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/create-release-tag/entrypoint.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+# GitHub doesn't support running actions on new tags yet: we need to run it on the commit.
+# For this reason, we can't be sure that the tag already exists. We can use the commit
+# message to create the tag. If the tag already exists locally, they won't conflict because
+# they have the same name and are on the same commit.
+
+echo "INFO: Getting release version..."
+tag_name=$(git log --oneline --format=%B -1 $GITHUB_SHA)
+
+echo "INFO: Creating new tag..."
+(git tag $tag_name $GITHUB_SHA) || echo "INFO: Tag already exists"

.github/actions/filter-commit-message/Dockerfile

@@ -0,0 +1,16 @@
+FROM debian:stable-slim
+
+LABEL "name"="filter"
+LABEL "version"="1.1.0"
+
+LABEL "com.github.actions.name"="Filter commit message"
+LABEL "com.github.actions.description"="Stop a workflow if the message of the current commit doesn't match the pattern"
+LABEL "com.github.actions.icon"="filter"
+LABEL "com.github.actions.color"="gray-dark"
+
+ADD entrypoint.sh /action/entrypoint.sh
+
+RUN chmod +x /action/entrypoint.sh
+RUN apt-get update && apt-get install -y --no-install-recommends git
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/filter-commit-message/entrypoint.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -e
+
+pattern=$1
+message=$(git log --oneline --format=%B -1 $GITHUB_SHA)
+
+if echo "$message" | grep -Pq "$pattern"; then
+  echo "INFO: $message matches $pattern"
+  exit 0
+else
+  echo "INFO: $message does not match $pattern"
+  # 78 is the "neutral" exit status
+  exit 78
+fi

.github/actions/trigger-github-release/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:10
+
+LABEL "name" = "trigger-github-release"
+LABEL "version" = "0.0.1"
+
+LABEL "com.github.actions.name" = "Trigger GitHub release"
+LABEL "com.github.actions.description" = "Trigger a new GitHub release and generate the changelog using lerna-changelog."
+LABEL "com.github.actions.icon" = "tag"
+LABEL "com.github.actions.color" = "yellow"
+
+ADD entrypoint.sh /action/entrypoint.sh
+ADD package.json /action/package.json
+ADD package-lock.json /action/package-lock.json
+ADD release.js /action/release.js
+ADD update-changelog.js /action/update-changelog.js
+
+RUN chmod +x /action/entrypoint.sh
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/trigger-github-release/entrypoint.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+echo "INFO: Installing action dependencies..."
+(cd /action; npm ci)
+
+echo "INFO: Getting release version..."
+current_tag=$(git describe --abbrev=0 --tags $GITHUB_SHA)
+
+last_tag=$(git describe --abbrev=0 --tags $current_tag^)
+echo "INFO: New version is $current_tag; last version is $last_tag."
+
+echo "INFO: Generating the changelog..."
+
+# lerna-changelog expects the token to be provided as GITHUB_AUTH,
+# but GitHub actions don't allow to predefine custom env vars prefixed with
+# GITHUB_. We need to define it here.
+changelog=$(
+  GITHUB_AUTH="$GITHUB_TOKEN" \
+  node /action/node_modules/.bin/lerna-changelog --tag-from $last_tag --tag-to $current_tag
+)
+
+echo "INFO: Publishing the new GitHub release..."
+echo "$changelog" | node /action/release $current_tag
+
+echo "INFO: Updating CHANGELOG.md..."
+echo "$changelog" | node /action/update-changelog
+
+echo "INFO: Committing changelog..."
+git add CHANGELOG.md
+git -c user.name="$COMMIT_AUTHOR_NAME" -c user.email="$COMMIT_AUTHOR_EMAIL" \
+  commit -m "Add $current_tag to CHANGELOG.md [skip ci]" --no-verify --quiet
+
+echo "INFO: Pushing updates..."
+git push "https://${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" master
+
+echo "INFO: Done! Don't forget to thank new contributors :)"

.github/actions/trigger-github-release/package.json

@@ -0,0 +1,12 @@
+{
+    "private": true,
+    "name": "@internal/trigger-github-release",
+    "version": "0.0.1",
+    "author": "Nicolò Ribaudo <nicolo.ribaudo@gmail.com>",
+    "license": "MIT",
+    "dependencies": {
+        "@octokit/rest": "^16.3.0",
+        "get-stdin": "^6.0.0",
+        "lerna-changelog": "^0.8.2"
+    }
+}

.github/actions/trigger-github-release/release.js

@@ -0,0 +1,26 @@
+"use strict";
+
+const [ /* node */, /* file */, tag ] = process.argv;
+
+const getStdin = require("get-stdin");
+const octokit = require("@octokit/rest")();
+
+octokit.authenticate({
+  type: "token",
+  token: process.env.GITHUB_TOKEN
+});
+
+const [ repoOwner, repoName ] = process.env.GITHUB_REPOSITORY.split("/");
+
+getStdin()
+  .then(changelog => octokit.repos.createRelease({
+    owner: repoOwner,
+    repo: repoName,
+    tag_name: tag,
+    body: changelog,
+    draft: true,
+  }))
+  .catch(err => {
+    console.error(err);
+    process.exit(1);
+  });

.github/actions/trigger-github-release/update-changelog.js

@@ -0,0 +1,31 @@
+"use strict";
+
+const getStdin = require("get-stdin");
+const fs = require("fs").promises;
+const path = require("path");
+
+const { GITHUB_WORKSPACE } = process.env;
+
+const INSERTION_POINT = "<!-- insert-new-changelog-here -->";
+const CHANGELOG = path.resolve(GITHUB_WORKSPACE, "CHANGELOG.md");
+
+main();
+async function main() {
+  let [stdin, changelog] = await Promise.all([
+    getStdin(),
+    fs.readFile(CHANGELOG, "utf8"),
+  ]);
+
+  if (!changelog.includes(INSERTION_POINT)) {
+    throw new Error(`Missing "${INSERTION_POINT}" in CHANGELOG.md`);
+  }
+
+  // Remove committers
+  stdin = stdin.split("\n\n#### Committers")[0];
+  changelog = changelog.replace(
+    INSERTION_POINT,
+    INSERTION_POINT + "\n" + stdin
+  );
+
+  await fs.writeFile(CHANGELOG, changelog);
+}

.github/main.workflow

@@ -0,0 +1,53 @@
+workflow "Release" {
+  on = "push"
+  resolves = [
+    "Trigger GitHub release",
+    # GitHub actions are too slow for this, it takes more than 15 mins.
+    # Publishing to npm from GH actions is a cool idea, but it's a lot faster to
+    # publish locally.
+    # "Publish to npm",
+   ]
+}
+
+action "Trigger GitHub release" {
+  uses = "./.github/actions/trigger-github-release/"
+  secrets = ["GITHUB_TOKEN"]
+  env = {
+    COMMIT_AUTHOR_NAME = "Babel Bot"
+    COMMIT_AUTHOR_EMAIL = "babel-bot@users.noreply.github.com"
+  }
+  needs = ["Create release tag"]
+}
+
+action "Publish to npm" {
+  uses = "docker://node:10"
+  secrets = ["NPM_TOKEN"]
+  runs = "make"
+  args = "publish-ci"
+  env = {
+    CI = "true"
+  }
+  needs = ["Create release tag"]
+}
+
+# When GitHub Actions will support the "release" event for public
+# repositories, we won't need this checks anymore.
+action "Create release tag" {
+  uses = "./.github/actions/create-release-tag"
+  needs = [
+    "Is version commit",
+    "On master branch",
+  ]
+}
+
+action "Is version commit" {
+  uses = "./.github/actions/filter-commit-message"
+  # This regex is run using "grep -P".
+  # The (-\\S+) part is for 7.0.0-beta.1 releases.
+  args = "^v(\\d+\\.){2}\\d+(-\\S+)?$"
+}
+
+action "On master branch" {
+  uses = "actions/bin/filter@master"
+  args = "branch master"
+}

.gitignore

@@ -1,5 +1,8 @@
+.npmrc
+
 .DS_Store
 /node_modules
+/.github/actions/*/node_modules
 /packages/*/node_modules
 /packages/*/LICENSE
 !/packages/babel-parser/LICENSE
@@ -15,6 +18,7 @@ coverage
 dist
 /.package.json
 package-lock.json
+!/.github/actions/*/package-lock.json
 
 /packages/babel-runtime/helpers/*.js
 !/packages/babel-runtime/helpers/toArray.js
@@ -36,6 +40,11 @@ package-lock.json
 /packages/babel-runtime-corejs2/core-js/**/*.js
 !/packages/babel-runtime-corejs2/core-js/map.js
 
+/packages/babel-runtime-corejs3/helpers/*.js
+/packages/babel-runtime-corejs3/helpers/esm/*.js
+/packages/babel-runtime-corejs3/core-js/**/*.js
+/packages/babel-runtime-corejs3/core-js-stable/**/*.js
+
 /packages/babel-register/test/.babel
 /packages/babel-cli/test/tmp
 /packages/babel-node/test/tmp

.prettierignore

@@ -1,2 +1,5 @@
 package.json
 packages/babel-preset-env/data
+packages/*/test/fixtures/**/input.*
+packages/*/test/fixtures/**/exec.*
+packages/*/test/fixtures/**/output.*

.travis.yml

@@ -5,6 +5,7 @@ cache:
   yarn: true
 node_js:
   # We test the latest version on circleci
+  - '11'
   - '10'
   - '8'
   - '6'

CHANGELOG.md

@@ -15,6 +15,521 @@ See [CHANGELOG - v4](/.github/CHANGELOG-v4.md), [CHANGELOG - v5](/.github/CHANGE
 See [CHANGELOG - 6to5](/.github/CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
 See [Babylon's CHANGELOG](packages/babylon/CHANGELOG.md) for the Babylon pre-7.0.0-beta.29 version changelog.
 
+<!-- DO NOT CHANGE THESE COMMENTS - See .github/actions/trigger-github-release/update-changelog.js -->
+<!-- insert-new-changelog-here -->
+
+## v7.5.0 (2019-07-04)
+
+#### :eyeglasses: Spec Compliance
+* `babel-parser`
+  * [#10099](https://github.com/babel/babel/pull/10099) Disallow "let" as name at lexical bindings ([@g-plane](https://github.com/g-plane))
+
+#### :rocket: New Feature
+* `babel-parser`
+  * [#10091](https://github.com/babel/babel/pull/10091) BigInt type for Flow ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9450](https://github.com/babel/babel/pull/9450) Implement f# pipeline in parser ([@mAAdhaTTah](https://github.com/mAAdhaTTah))
+  * [#9912](https://github.com/babel/babel/pull/9912) [legacy decorators] Allow decorating generator methods ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9864](https://github.com/babel/babel/pull/9864) [@babel/parser] Add "allowUndeclaredExports" option ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-dynamic-import`, `babel-preset-env-standalone`, `babel-preset-env`
+  * [#10109](https://github.com/babel/babel/pull/10109) Add @babel/plugin-proposal-dynamic-import to @babel/preset-env ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-dynamic-import`, `babel-plugin-transform-modules-amd`, `babel-plugin-transform-modules-commonjs`, `babel-plugin-transform-modules-systemjs`
+  * [#9552](https://github.com/babel/babel/pull/9552) Create @babel/plugin-proposal-dynamic-import ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-pipeline-operator`, `babel-plugin-syntax-pipeline-operator`
+  * [#9984](https://github.com/babel/babel/pull/9984) Transform for F# Pipeline ([@thiagoarrais](https://github.com/thiagoarrais))
+* `babel-plugin-transform-typescript`, `babel-types`
+  * [#9785](https://github.com/babel/babel/pull/9785) Implement TypeScript namespace support ([@Wolvereness](https://github.com/Wolvereness))
+
+#### :bug: Bug Fix
+* `babel-plugin-proposal-do-expressions`, `babel-traverse`
+  * [#10072](https://github.com/babel/babel/pull/10072) fix await and yield for do expression ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-helpers`, `babel-plugin-transform-react-constant-elements`
+  * [#10155](https://github.com/babel/babel/pull/10155) Added es3 backward compatibility for react helper code ([@sormy](https://github.com/sormy))
+* `babel-preset-env`
+  * [#10127](https://github.com/babel/babel/pull/10127) Bump compat-table and updating preset-env mappings ([@existentialism](https://github.com/existentialism))
+  * [#8897](https://github.com/babel/babel/pull/8897) Allow `defaults` query in preset-env ([@existentialism](https://github.com/existentialism))
+* `babel-parser`
+  * [#10132](https://github.com/babel/babel/pull/10132) fix import typeof in declare module ([@tanhauhau](https://github.com/tanhauhau))
+  * [#10084](https://github.com/babel/babel/pull/10084) flow - allow type parameter defaults in function declarations ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-types`
+  * [#10126](https://github.com/babel/babel/pull/10126) fix exportKind declaration in babel-types ([@zxbodya](https://github.com/zxbodya))
+* `babel-node`
+  * [#9951](https://github.com/babel/babel/pull/9951) Prevents exception on PnP ([@arcanis](https://github.com/arcanis))
+* `babel-generator`
+  * [#10041](https://github.com/babel/babel/pull/10041) Fix printer for explicitly inexact Flow types ([@mrtnzlml](https://github.com/mrtnzlml))
+* `babel-plugin-transform-typescript`
+  * [#10034](https://github.com/babel/babel/pull/10034) Use scope for typescript export removals ([@Wolvereness](https://github.com/Wolvereness))
+  * [#10019](https://github.com/babel/babel/pull/10019) fix(typescript): erase default export if exporting a TS type ([@airato](https://github.com/airato))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-class-properties`, `babel-traverse`
+  * [#10029](https://github.com/babel/babel/pull/10029) Fixed computed keys for class expression ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-helpers`, `babel-plugin-proposal-object-rest-spread`, `babel-preset-env`
+  * [#9384](https://github.com/babel/babel/pull/9384) Retry to fix object spread helper compatibility ([@saschanaz](https://github.com/saschanaz))
+* `babel-plugin-transform-destructuring`
+  * [#10013](https://github.com/babel/babel/pull/10013) fix destructuring rest with template literal ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-transform-typescript`
+  * [#9610](https://github.com/babel/babel/pull/9610) Use `injectInitialization` to generate ts parameter properties ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :nail_care: Polish
+* `babel-core`
+  * [#10157](https://github.com/babel/babel/pull/10157) Fix incorrect usage of $o instead of %o in debug ([@ChlorideCull](https://github.com/ChlorideCull))
+* `babel-helpers`
+  * [#10117](https://github.com/babel/babel/pull/10117) Simplify the helpers for classPrivateField{Get,Set} ([@arv](https://github.com/arv))
+* `babel-plugin-transform-typescript`
+  * [#10047](https://github.com/babel/babel/pull/10047) Refactor isImportTypeOnly helper function ([@Andarist](https://github.com/Andarist))
+
+#### :memo: Documentation
+* `babel-plugin-proposal-partial-application`, `babel-plugin-syntax-partial-application`
+  * [#10103](https://github.com/babel/babel/pull/10103) docs: update readmes ([@xtuc](https://github.com/xtuc))
+
+## v7.4.5 (2019-05-21)
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9998](https://github.com/babel/babel/pull/9998) Fix location for optional params in arrow functions ([@danez](https://github.com/danez))
+  * [#9982](https://github.com/babel/babel/pull/9982) Avoid unnecessary work during lookahead ([@danez](https://github.com/danez))
+  * [#9922](https://github.com/babel/babel/pull/9922) fix: allow shebang directive ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-preset-env`
+  * [#10002](https://github.com/babel/babel/pull/10002) Update preset-env dependencies and fix fixtures ([@danez](https://github.com/danez))
+  * [#9978](https://github.com/babel/babel/pull/9978) Fix mobile browsers support in preset-env ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9902](https://github.com/babel/babel/pull/9902) Fix destructuring assignments being transpiled for edge 15 ([@eps1lon](https://github.com/eps1lon))
+* `babel-plugin-transform-typescript`
+  * [#9944](https://github.com/babel/babel/pull/9944) fix(typescript): erase type exports ([@airato](https://github.com/airato))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9995](https://github.com/babel/babel/pull/9995) Do not use lookahead when parsing construct signature declarations in TS ([@danez](https://github.com/danez))
+  * [#9989](https://github.com/babel/babel/pull/9989) Only compute Position if not already in state ([@danez](https://github.com/danez))
+  * [#9988](https://github.com/babel/babel/pull/9988) Do not use lookahead when parsing jsx expression containers ([@danez](https://github.com/danez))
+  * [#9987](https://github.com/babel/babel/pull/9987) Do not use lookahead when parsing imports in declare module in flow ([@danez](https://github.com/danez))
+  * [#9985](https://github.com/babel/babel/pull/9985) Do not use lookahead when parsing declare module or declare module.exports in flow ([@danez](https://github.com/danez))
+  * [#9983](https://github.com/babel/babel/pull/9983) Do not use lookahead when parsing dynamic import or import.meta ([@danez](https://github.com/danez))
+  * [#9979](https://github.com/babel/babel/pull/9979) Remove guardedHandlers from ASTs ([@danez](https://github.com/danez))
+* `babel-preset-env`
+  * [#9992](https://github.com/babel/babel/pull/9992) use console.warn for warning ([@schu34](https://github.com/schu34))
+* `babel-core`
+  * [#9945](https://github.com/babel/babel/pull/9945) Fixed null error in plugin opts and added a test for it ([@divbhasin](https://github.com/divbhasin))
+* `babel-core`, `babel-traverse`
+  * [#9909](https://github.com/babel/babel/pull/9909) Add missing space in error messages ([@pnavarrc](https://github.com/pnavarrc))
+
+#### :house: Internal
+* `babel-node`
+  * [#9914](https://github.com/babel/babel/pull/9914) [babel-node] Do not hardcode node flags ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.4.4 (2019-04-26)
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-flow-comments`
+  * [#9897](https://github.com/babel/babel/pull/9897) fix flow-comments - class type paramters and implements ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9893](https://github.com/babel/babel/pull/9893) fix flow-comment - object destructuring ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-parser`
+  * [#9766](https://github.com/babel/babel/pull/9766) Add TS support to @babel/parser's Scope ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9865](https://github.com/babel/babel/pull/9865) Always register global bindings as exportable ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9887](https://github.com/babel/babel/pull/9887) Fix TypeScript readonly error location ([@existentialism](https://github.com/existentialism))
+  * [#9869](https://github.com/babel/babel/pull/9869) ! remove constant context assertions ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9890](https://github.com/babel/babel/pull/9890) Fix parsing typescript bodiless methods with the estree plugin also enabled ([@devongovett](https://github.com/devongovett))
+* `babel-traverse`
+  * [#9870](https://github.com/babel/babel/pull/9870) Fix flow types in traverse/path/family and enable flow ([@danez](https://github.com/danez))
+* `babel-plugin-proposal-class-properties`, `babel-plugin-transform-modules-commonjs`, `babel-types`
+  * [#9861](https://github.com/babel/babel/pull/9861) Fix: PrivateName Identifier should not be isReferenced. ([@coreyfarrell](https://github.com/coreyfarrell))
+* `babel-types`
+  * [#9832](https://github.com/babel/babel/pull/9832) Fix typo in cloneNode. ([@evandervalk](https://github.com/evandervalk))
+
+
+## v7.4.3 (2019-04-02)
+
+#### :eyeglasses: Spec Compliance
+* `babel-parser`
+  * [#9769](https://github.com/babel/babel/pull/9769) Don't accept '\08' or '\09' in strict mode. ([@danez](https://github.com/danez))
+  * [#9768](https://github.com/babel/babel/pull/9768) Correctly check for-in and for-of loop for invalid left-hand side. ([@danez](https://github.com/danez))
+  * [#9767](https://github.com/babel/babel/pull/9767) Parse right-hand-side of for/of as an assignment expression. ([@danez](https://github.com/danez))
+  * [#9748](https://github.com/babel/babel/pull/9748) [typescript] parsing template literal as type . ([@tanhauhau](https://github.com/tanhauhau))
+
+#### :rocket: New Feature
+* `babel-plugin-transform-runtime`
+  * [#9754](https://github.com/babel/babel/pull/9754) [runtime-corejs3] Only polyfill instance methods when it might be needed. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :bug: Bug Fix
+* `babel-polyfill`
+  * [#9780](https://github.com/babel/babel/pull/9780) Closes [#9232](https://github.com/babel/babel/issues/9232), add some missed modules to `@babel/polyfill/noConflict`. ([@zloirock](https://github.com/zloirock))
+* `babel-cli`
+  * [#9807](https://github.com/babel/babel/pull/9807) Upgrade lodash to 4.17.11. ([@danez](https://github.com/danez))
+* `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
+  * [#9802](https://github.com/babel/babel/pull/9802) Fix lazy option of babel-plugin-transform-modules-commonjs. ([@AndreasCag](https://github.com/AndreasCag))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9801](https://github.com/babel/babel/pull/9801) Fix super method call in private instance method calling overridden method. ([@MattiasBuelens](https://github.com/MattiasBuelens))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-destructuring`
+  * [#9416](https://github.com/babel/babel/pull/9416) Destructuring: Fix handling of impure computed keys with object rest. ([@motiz88](https://github.com/motiz88))
+* `babel-plugin-transform-destructuring`
+  * [#9412](https://github.com/babel/babel/pull/9412) Destructuring: Fix array unpacking assignments with holes on RHS. ([@motiz88](https://github.com/motiz88))
+* `babel-traverse`
+  * [#9415](https://github.com/babel/babel/pull/9415) @babel/traverse: Fix NodePath.getData. ([@71](https://github.com/71))
+* `babel-parser`
+  * [#9760](https://github.com/babel/babel/pull/9760) Allow HTML comments on first line. ([@danez](https://github.com/danez))
+  * [#9700](https://github.com/babel/babel/pull/9700) Fix compatibility between estree and TS plugin. ([@danez](https://github.com/danez))
+* `babel-helpers`
+  * [#9756](https://github.com/babel/babel/pull/9756) Allow coreJS Symbol to be type object. ([@conartist6](https://github.com/conartist6))
+* `babel-preset-env`
+  * [#9752](https://github.com/babel/babel/pull/9752) Normalize `core-js` entry points. ([@zloirock](https://github.com/zloirock))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9762](https://github.com/babel/babel/pull/9762) Optimize parseBindingAtom code to get better error messages. ([@danez](https://github.com/danez))
+* `babel-core`, `babel-plugin-transform-for-of`
+  * [#9698](https://github.com/babel/babel/pull/9698) Move array reference into `for` head initializer. ([@danez](https://github.com/danez))
+
+#### :house: Internal
+* Other
+  * [#9806](https://github.com/babel/babel/pull/9806) Update test262. ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-preset-typescript`
+  * [#9761](https://github.com/babel/babel/pull/9761) Explicit labels for tokenTypes. ([@danez](https://github.com/danez))
+
+
+## v7.4.2 (2019-03-21)
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9725](https://github.com/babel/babel/pull/9725) Modules might be in loose mode when checking for undecl exports ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9719](https://github.com/babel/babel/pull/9719) Fix scope checks with enabled flow plugin ([@danez](https://github.com/danez))
+* `babel-helpers`, `babel-plugin-transform-named-capturing-groups-regex`
+  * [#9726](https://github.com/babel/babel/pull/9726) Fix typo in wrapRegExp helper ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9724](https://github.com/babel/babel/pull/9724) Closes [#9713](https://github.com/babel/babel/issues/9713) ([@zloirock](https://github.com/zloirock))
+
+#### :nail_care: Polish
+* `babel-preset-env`
+  * [#9732](https://github.com/babel/babel/pull/9732) Mark the core-js warning as such ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9716](https://github.com/babel/babel/pull/9716) Tweak preset-env corejs/useBuiltIns warning and error messages ([@existentialism](https://github.com/existentialism))
+
+#### :house: Internal
+* [#9718](https://github.com/babel/babel/pull/9718) Bump Babel deps ([@existentialism](https://github.com/existentialism))
+
+## v7.4.1 (2019-03-20)
+
+#### :bug: Bug Fix
+* `babel-preset-env`
+  * [#9711](https://github.com/babel/babel/pull/9711) Alias @babel/preset-env/data/built-ins.json.js ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9709](https://github.com/babel/babel/pull/9709) Bring back isPluginRequired ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.4.0 (2019-03-19)
+
+#### :eyeglasses: Spec Compliance
+* `babel-parser`
+  * [#9529](https://github.com/babel/babel/pull/9529) Add `readonly` to TypeScript type modifier ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9534](https://github.com/babel/babel/pull/9534) TypeScript Constant contexts ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9637](https://github.com/babel/babel/pull/9637) Update identifier parsing per Unicode v12 ([@mathiasbynens](https://github.com/mathiasbynens))
+  * [#9616](https://github.com/babel/babel/pull/9616) Allow any reserved word in `export {} from` specifiers ([@danez](https://github.com/danez))
+  * [#9612](https://github.com/babel/babel/pull/9612) [TS] Disallow type casts in arrow parameters ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9607](https://github.com/babel/babel/pull/9607) Refactor parsing object members ([@danez](https://github.com/danez))
+  * [#9599](https://github.com/babel/babel/pull/9599) Disallow duplicate params in methods ([@danez](https://github.com/danez))
+  * [#9586](https://github.com/babel/babel/pull/9586) Treat for loop body as part of loop scope ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-plugin-transform-typescript`
+  * [#9641](https://github.com/babel/babel/pull/9641) Allow context type annotation on getters/setters ([@matt-tingen](https://github.com/matt-tingen))
+* `babel-plugin-proposal-unicode-property-regex`, `babel-plugin-transform-dotall-regex`, `babel-plugin-transform-unicode-regex`
+  * [#9636](https://github.com/babel/babel/pull/9636) Update babel-plugin-proposal-unicode-property-regex for Unicode v12 ([@mathiasbynens](https://github.com/mathiasbynens))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-flow-strip-types`, `babel-plugin-transform-modules-systemjs`
+  * [#9589](https://github.com/babel/babel/pull/9589) Check exported bindings are defined ([@danez](https://github.com/danez))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-classes`, `babel-plugin-transform-flow-comments`, `babel-plugin-transform-flow-strip-types`, `babel-plugin-transform-new-target`
+  * [#9493](https://github.com/babel/babel/pull/9493) Introduce scope tracking in the parser ([@danez](https://github.com/danez))
+
+#### :rocket: New Feature
+* `babel-helpers`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-runtime`, `babel-plugin-transform-typescript`, `babel-polyfill`, `babel-preset-env`, `babel-register`, `babel-runtime-corejs2`, `babel-runtime-corejs3`
+  * [#7646](https://github.com/babel/babel/pull/7646) Update to `core-js@3` ([@zloirock](https://github.com/zloirock))
+* `babel-template`
+  * [#9648](https://github.com/babel/babel/pull/9648) Add %%placeholders%% support to @babel/template ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`, `babel-plugin-proposal-partial-application`
+  * [#9474](https://github.com/babel/babel/pull/9474) Partial application plugin ([@byara](https://github.com/byara))
+* `babel-generator`, `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-private-methods`
+  * [#9446](https://github.com/babel/babel/pull/9446) Private Static Class Methods (Stage 3) ([@tim-mc](https://github.com/tim-mc))
+* `babel-generator`, `babel-types`
+  * [#9542](https://github.com/babel/babel/pull/9542) Add placeholders support to @babel/types and @babel/generator ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#9364](https://github.com/babel/babel/pull/9364) Add parser support for placeholders ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-generator`, `babel-parser`, `babel-plugin-syntax-partial-application`, `babel-types`
+  * [#9343](https://github.com/babel/babel/pull/9343) Partial Application Syntax: Stage 1 ([@byara](https://github.com/byara))
+
+#### :bug: Bug Fix
+* `babel-helper-create-class-features-plugin`, `babel-helper-replace-supers`, `babel-plugin-proposal-private-methods`
+  * [#9704](https://github.com/babel/babel/pull/9704) Fix `super` Method Calls in Class Private Methods ([@tim-mc](https://github.com/tim-mc))
+* `babel-parser`
+  * [#9699](https://github.com/babel/babel/pull/9699) Correctly parse TS TypeAssertions around arrow functions ([@danez](https://github.com/danez))
+  * [#9600](https://github.com/babel/babel/pull/9600) Fix scope check for 2nd+ lexical bindings ([@danez](https://github.com/danez))
+  * [#9593](https://github.com/babel/babel/pull/9593) [TS] Correctly forget `await`s after parsing async arrows with type args ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9585](https://github.com/babel/babel/pull/9585) Fix strict mode prescanning with EmptyStatement ([@danez](https://github.com/danez))
+* `babel-core`, `babel-plugin-transform-for-of`
+  * [#9697](https://github.com/babel/babel/pull/9697) Correctly preserve reference to array in for-of loop ([@danez](https://github.com/danez))
+* `babel-plugin-transform-typescript`
+  * [#9693](https://github.com/babel/babel/pull/9693) [plugin-transform-typescript] Fix transpiling of TS abstract classes with decorators  ([@agoldis](https://github.com/agoldis))
+* `babel-traverse`, `babel-types`
+  * [#9692](https://github.com/babel/babel/pull/9692) Fix TSFunctionType visitors definition ([@penielse](https://github.com/penielse))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#9628](https://github.com/babel/babel/pull/9628) [proposal-object-rest-spread] fix templateLiteral in extractNormalizedKeys  ([@pnowak](https://github.com/pnowak))
+* `babel-plugin-transform-modules-systemjs`
+  * [#9639](https://github.com/babel/babel/pull/9639) System modules - Hoist classes like other variables ([@guybedford](https://github.com/guybedford))
+* `babel-generator`, `babel-parser`
+  * [#9618](https://github.com/babel/babel/pull/9618) Disallow escape sequences in contextual keywords ([@danez](https://github.com/danez))
+* `babel-helper-split-export-declaration`, `babel-plugin-transform-modules-commonjs`, `babel-traverse`
+  * [#9613](https://github.com/babel/babel/pull/9613) Don't add params of anonymous exported function decls to the outer scope ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-transform-parameters`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#9605](https://github.com/babel/babel/pull/9605) [plugin-transform-typescript] Strip type imports used in Enums and object types ([@echenley](https://github.com/echenley))
+* `babel-helper-call-delegate`, `babel-plugin-transform-parameters`
+  * [#9601](https://github.com/babel/babel/pull/9601) Don't loose "this" in helper-call-delegate ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-modules-commonjs`, `babel-traverse`, `babel-types`
+  * [#9492](https://github.com/babel/babel/pull/9492) Mark FOO in "var { x: FOO }˝ as a binding, not as a reference ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9595](https://github.com/babel/babel/pull/9595) preset-env: Sort versions before determining lowest ([@jridgewell](https://github.com/jridgewell))
+* `babel-helper-define-map`, `babel-helper-hoist-variables`, `babel-parser`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-block-scoping`, `babel-plugin-transform-destructuring`, `babel-plugin-transform-modules-systemjs`, `babel-traverse`, `babel-types`
+  * [#9518](https://github.com/babel/babel/pull/9518) Use `for..of Object.keys` instead of `for..in` ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9646](https://github.com/babel/babel/pull/9646) Remove input and length from state ([@danez](https://github.com/danez))
+  * [#9645](https://github.com/babel/babel/pull/9645) Reorganize token types and use a map for them ([@danez](https://github.com/danez))
+  * [#9591](https://github.com/babel/babel/pull/9591) Remove always false param allowExpressionBody ([@danez](https://github.com/danez))
+* `babel-standalone`, `babel-types`
+  * [#9025](https://github.com/babel/babel/pull/9025) Make babel-standalone an ESModule and enable flow ([@danez](https://github.com/danez))
+* `babel-generator`
+  * [#9579](https://github.com/babel/babel/pull/9579) change var name for coherence ([@tanohzana](https://github.com/tanohzana))
+
+#### :house: Internal
+* Other
+  * [#9588](https://github.com/babel/babel/pull/9588) Publish to npm using a GitHub action ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9640](https://github.com/babel/babel/pull/9640) Switch from rollup-stream to rollup ([@danez](https://github.com/danez))
+  * [#9647](https://github.com/babel/babel/pull/9647) Add WarningsToErrorsPlugin to webpack to avoid missing build problems on CI ([@danez](https://github.com/danez))
+  * [#9624](https://github.com/babel/babel/pull/9624) Update dependencies ([@danez](https://github.com/danez))
+  * [#9623](https://github.com/babel/babel/pull/9623) Add editorconfig for Makefile ([@danez](https://github.com/danez))
+  * [#9587](https://github.com/babel/babel/pull/9587) Update test262 ([@danez](https://github.com/danez))
+  * [#9582](https://github.com/babel/babel/pull/9582) Minify bundles on circle for repl ([@danez](https://github.com/danez))
+* `babel-register`
+  * [#9678](https://github.com/babel/babel/pull/9678) Remove dependency on home-or-tmp package ([@AmirS](https://github.com/AmirS))
+
+## v7.3.4 (2019-02-25)
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9572](https://github.com/babel/babel/pull/9572) Fix TypeScript parsers missing token check (#9571) ([@elevatebart](https://github.com/elevatebart))
+  * [#9521](https://github.com/babel/babel/pull/9521) Also check AssignmentPatterns for duplicate export name ([@danez](https://github.com/danez))
+* `babel-helper-create-class-features-plugin`, `babel-helper-replace-supers`, `babel-plugin-proposal-class-properties`, `babel-traverse`
+  * [#9508](https://github.com/babel/babel/pull/9508) Use correct "this" in static fields ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9566](https://github.com/babel/babel/pull/9566) Closes [#9465](https://github.com/babel/babel/issues/9465) ([@zloirock](https://github.com/zloirock))
+* `babel-types`
+  * [#9539](https://github.com/babel/babel/pull/9539) babel-types is* type checks accept null | undefiend as value TS type ([@ian-craig](https://github.com/ian-craig))
+* `babel-plugin-transform-block-scoping`, `babel-traverse`
+  * [#9532](https://github.com/babel/babel/pull/9532) Migrate some duplicate binding tests to traverse ([@danez](https://github.com/danez))
+* `babel-generator`
+  * [#9524](https://github.com/babel/babel/pull/9524) Fix typescript generator params ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9523](https://github.com/babel/babel/pull/9523) Fix flow babel-generator function parantheses ([@tanhauhau](https://github.com/tanhauhau))
+
+#### :house: Internal
+* Other
+  * [#9561](https://github.com/babel/babel/pull/9561) Update CHANGELOG.md using the "Trigger GitHub release" action ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-modules-systemjs`
+  * [#9541](https://github.com/babel/babel/pull/9541) Enable eqeqeq rule in eslint ([@danez](https://github.com/danez))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-flow-strip-types`, `babel-traverse`
+  * [#9522](https://github.com/babel/babel/pull/9522) Make tests spec compliant by avoiding duplicate declarations in input files ([@danez](https://github.com/danez))
+* `babel-plugin-transform-proto-to-assign`
+  * [#9533](https://github.com/babel/babel/pull/9533) Add import/no-extraneous-dependencies to ESLint ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.3.3 (2019-02-15)
+
+#### :eyeglasses: Spec Compliancy
+* `babel-generator`
+  * [#9501](https://github.com/babel/babel/pull/9501) Correctly output escapes in directives ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9477](https://github.com/babel/babel/pull/9477) Fix regression with let ([@danez](https://github.com/danez))
+  * [#9431](https://github.com/babel/babel/pull/9431) Typescript function destructured params ([@mhcgrq](https://github.com/mhcgrq))
+  * [#9463](https://github.com/babel/babel/pull/9463) Fix range for TypeScript optional parameter in arrow function ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-plugin-proposal-class-properties`, `babel-plugin-transform-classes`, `babel-plugin-transform-parameters`
+  * [#9458](https://github.com/babel/babel/pull/9458) Fix duplicated assertThisInitialized calls in constructors ([@rubennorte](https://github.com/rubennorte))
+
+#### :house: Internal
+* Other
+  * [#9517](https://github.com/babel/babel/pull/9517) Add duplicate-package-checker-webpack-plugin ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9469](https://github.com/babel/babel/pull/9469) Exclude generate @babel/types files from coverage report ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#9491](https://github.com/babel/babel/pull/9491) Better error output in parser tests ([@danez](https://github.com/danez))
+## v7.3.2 (2019-02-04)
+
+Various spec compliancy fixes and better support for smart pipelines and private methods.
+
+Thanks @gverni, @naffiq, @spondbob and @dstaley for their first PRs!
+
+#### :eyeglasses: Spec Compliancy
+* `babel-parser`
+  * [#9403](https://github.com/babel/babel/pull/9403) Fix line continuation with Unicode line terminators. ([@danez](https://github.com/danez))
+  * [#9400](https://github.com/babel/babel/pull/9400) Make yield a contextual keyword. ([@danez](https://github.com/danez))
+  * [#9398](https://github.com/babel/babel/pull/9398) Correctly fail for invalid yield in for. ([@danez](https://github.com/danez))
+  * [#9375](https://github.com/babel/babel/pull/9375) Make let a contextual keyword. ([@danez](https://github.com/danez))
+
+#### :rocket: New Feature
+* `babel-plugin-proposal-pipeline-operator`
+  * [#9401](https://github.com/babel/babel/pull/9401) Support for await and yield in pipelines. ([@thiagoarrais](https://github.com/thiagoarrais))
+
+#### :bug: Bug Fix
+* `babel-plugin-proposal-private-methods`, `babel-types`
+  * [#9453](https://github.com/babel/babel/pull/9453) Fix duplicate definition error in private class methods. ([@gverni](https://github.com/gverni))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9423](https://github.com/babel/babel/pull/9423) Transform private async and generator functions. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-destructuring`
+  * [#9414](https://github.com/babel/babel/pull/9414) Destructuring: Create assignments from ForX non-declaration patterns. ([@motiz88](https://github.com/motiz88))
+* `babel-plugin-transform-typescript`
+  * [#9095](https://github.com/babel/babel/pull/9095) Retain JSX pragma if defined as a comment. ([@dstaley](https://github.com/dstaley))
+* `babel-parser`
+  * [#9406](https://github.com/babel/babel/pull/9406) Fix location/range on TypeScript ExportNamedDeclarations. ([@existentialism](https://github.com/existentialism))
+  * [#9371](https://github.com/babel/babel/pull/9371) Allow toplevel await with option and correctly mark await keyword as unexpected. ([@danez](https://github.com/danez))
+* `babel-plugin-transform-typescript`, `babel-types`
+  * [#8738](https://github.com/babel/babel/pull/8738) Fix typescript side effects. ([@yuri-karadzhov](https://github.com/yuri-karadzhov))
+* `babel-generator`, `babel-types`
+  * [#9396](https://github.com/babel/babel/pull/9396) Fix support for Flow's QualifiedTypeIdentifier. ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9405](https://github.com/babel/babel/pull/9405) Simplify await and yield tracking in params. ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-preset-typescript`
+  * [#9402](https://github.com/babel/babel/pull/9402) Unify reserved word checking and update error messages. ([@danez](https://github.com/danez))
+
+## v7.3.1 (2019-01-22)
+
+This release fixes some regressions introduced in v7.3.0
+
+#### :bug: Bug Fix
+* `babel-helpers`, `babel-plugin-proposal-object-rest-spread`, `babel-preset-env`
+  * [#9379](https://github.com/babel/babel/pull/9379) Revert "Differentiate object spread and non-spread properties (#9341)". ([@danez](https://github.com/danez))
+* `babel-parser`
+  * [#9377](https://github.com/babel/babel/pull/9377) fix new keyword broken by recent refactoring. ([@danez](https://github.com/danez))
+
+## v7.3.0 (2019-01-21)
+
+Thanks to @jamesgeorge007 and @armano2 for their first PR!
+
+#### :eyeglasses: Spec Compliancy
+* `babel-parser`
+  * [#9314](https://github.com/babel/babel/pull/9314) Disallow async functions as loop body. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9315](https://github.com/babel/babel/pull/9315) Parse class heritage as strict mode code. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9313](https://github.com/babel/babel/pull/9313) Disallow `new import(x)` and `import(x,)`. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9311](https://github.com/babel/babel/pull/9311) Disallow trailing comma after rest. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :rocket: New Feature
+* `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-private-methods`
+  * [#9101](https://github.com/babel/babel/pull/9101) Private Class Methods Stage 3: Private Accessors. ([@tim-mc](https://github.com/tim-mc))
+* `babel-plugin-proposal-pipeline-operator`, `babel-plugin-syntax-pipeline-operator`
+  * [#9179](https://github.com/babel/babel/pull/9179) Transform for the smart pipeline operator proposal. ([@thiagoarrais](https://github.com/thiagoarrais))
+* `babel-preset-env-standalone`, `babel-preset-env`
+  * [#9345](https://github.com/babel/babel/pull/9345) Add support for transform-named-capturing-groups-regex in preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-helpers`, `babel-plugin-transform-named-capturing-groups-regex`
+  * [#7105](https://github.com/babel/babel/pull/7105) Add @babel/plugin-transform-named-capturing-groups-regex. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9323](https://github.com/babel/babel/pull/9323) Add support for proposal-json-strings in preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-generator`, `babel-types`
+  * [#9309](https://github.com/babel/babel/pull/9309) Add emit and builder for TSImportType. ([@hzoo](https://github.com/hzoo))
+* `babel-parser`
+  * [#9302](https://github.com/babel/babel/pull/9302) @babel/parser(ts): Add parsing of type import. ([@armano2](https://github.com/armano2))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9336](https://github.com/babel/babel/pull/9336) Disallow usage of invalid keyword after export abstract statement in Typescript. ([@armano2](https://github.com/armano2))
+  * [#9328](https://github.com/babel/babel/pull/9328) Fix handling newline with TypeScript declare and abstract classes. ([@existentialism](https://github.com/existentialism))
+  * [#9335](https://github.com/babel/babel/pull/9335) Fix range on TypeScript index signature parameters. ([@existentialism](https://github.com/existentialism))
+  * [#9292](https://github.com/babel/babel/pull/9292) Throw error if TypeScript class has empty implements. ([@existentialism](https://github.com/existentialism))
+  * [#9284](https://github.com/babel/babel/pull/9284) Fix location for typescript type assertions in AST. ([@danez](https://github.com/danez))
+  * [#9276](https://github.com/babel/babel/pull/9276) Ensure modifiers are included in TSParameterProperty ranges. ([@existentialism](https://github.com/existentialism))
+  * [#9230](https://github.com/babel/babel/pull/9230) babel-parser: typescript: add missing bigint keyword. ([@armano2](https://github.com/armano2))
+* `babel-types`
+  * [#9333](https://github.com/babel/babel/pull/9333) Copy "optional" property when cloning Identifier node. ([@unconfident](https://github.com/unconfident))
+* `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-decorators`
+  * [#9244](https://github.com/babel/babel/pull/9244) [decorators] Set method names at compile time instead of at runtime. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helper-builder-react-jsx`, `babel-plugin-transform-react-jsx`
+  * [#9119](https://github.com/babel/babel/pull/9119) Revert "Revert babel-helper-builder-react-jsx change from #4988". ([@danez](https://github.com/danez))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9248](https://github.com/babel/babel/pull/9248) [private methods] Define private methods before executing initializers. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9219](https://github.com/babel/babel/pull/9219) Fix handling scoped packages in preset-env include/exclude options. ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9348](https://github.com/babel/babel/pull/9348) Parser Performance Collection. ([@danez](https://github.com/danez))
+
+#### :memo: Documentation
+* [#9370](https://github.com/babel/babel/pull/9370) add v7 downloads [skip ci]. ([@hzoo](https://github.com/hzoo))
+
+#### :house: Internal
+* `babel-parser`
+  * [#9312](https://github.com/babel/babel/pull/9312) Merge declaration and init of props in parser's state. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-types`
+  * [#9245](https://github.com/babel/babel/pull/9245) [@babel/types] Moved generators related to babel-types into the babel-types package directory.. ([@cameron-martin](https://github.com/cameron-martin))
+* Other
+  * [#9288](https://github.com/babel/babel/pull/9288) Test262 update. ([@existentialism](https://github.com/existentialism))
+  * [#9290](https://github.com/babel/babel/pull/9290) Use 2014-present in license. ([@xtuc](https://github.com/xtuc))
+  * [#9271](https://github.com/babel/babel/pull/9271) Bump license years for 2019. ([@berlamhenderson](https://github.com/berlamhenderson))
+* `babel-helpers`
+  * [#9166](https://github.com/babel/babel/pull/9166) Add mixins support to the _decorate helper. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.2.5 (2018-12-21)
+
+`@babel/polyfill` didn't get published correctly in v7.2.3 (#9227).
+
+## v7.2.4 (2018-12-20)
+
+Minify `@babel/standalone` and `@babel/preset-env-standalone`.
+
+## v7.2.3 (2018-12-20)
+
+This is a small release, mainly to test Lerna 3.
+We force-published `@babel/polyfill` and `@babel/preset-env`, since they should have been released respectively in v7.1.0 and v7.2.2 but for different reasons they didn't get updated.
+
+Half of the commits in this release are made by first time contributors! Thanks to @cameron-martin, @cphamlet, @tanhauhau and @jedwards1211. :tada:
+
+#### :rocket: New Feature
+* [#9110](https://github.com/babel/babel/pull/9110) Added type-level mapping between aliases and nodes that have that alias. ([@cameron-martin](https://github.com/cameron-martin))
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-flow-strip-types`
+  * [#9197](https://github.com/babel/babel/pull/9197) Strips flow directive fully. ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-parser`
+  * [#9184](https://github.com/babel/babel/pull/9184) Allow keywords to be used in type annotations. ([@danez](https://github.com/danez))
+
+#### :house: Internal
+* `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-proposal-private-methods`, `babel-traverse`
+  * [#9206](https://github.com/babel/babel/pull/9206) Use @babel/eslint-plugin-developement. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.2.2 (2018-12-15)
+
+Mostly bug fixes and internal changes.
+Thanks to @paleite, @saschanaz and @joeldenning for their first PRs!
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-destructuring`, `babel-plugin-transform-spread`
+  * [#9108](https://github.com/babel/babel/pull/9108) Correctly transform spreads to use proper concat method. ([@danez](https://github.com/danez))
+* `babel-parser`
+  * [#9168](https://github.com/babel/babel/pull/9168) [parser] Handle flow comments with leading spaces. ([@vikr01](https://github.com/vikr01))
+* `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
+  * [#9171](https://github.com/babel/babel/pull/9171) Fix transforming empty export statement. ([@danez](https://github.com/danez))
+* `babel-node`
+  * [#9148](https://github.com/babel/babel/pull/9148) Fix --root-mode option in babel-node. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-transform-classes`
+  * [#9135](https://github.com/babel/babel/pull/9135) Inherit properties in function from method in loose mode. ([@rubennorte](https://github.com/rubennorte))
+* `babel-preset-env`
+  * [#9140](https://github.com/babel/babel/pull/9140) Disable parameter-destructuring in Edge 18. ([@saschanaz](https://github.com/saschanaz))
+* `babel-plugin-transform-arrow-functions`, `babel-traverse`
+  * [#9060](https://github.com/babel/babel/pull/9060) Not depending on return value of super(). Closes [#9020](https://github.com/babel/babel/issues/9020).. ([@joeldenning](https://github.com/joeldenning))
+
+#### :house: Internal
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-nullish-coalescing-operator`, `babel-plugin-syntax-bigint`, `babel-plugin-transform-dotall-regex`
+  * [#9176](https://github.com/babel/babel/pull/9176) Fix package.json repository URLs. ([@paleite](https://github.com/paleite))
+* Other
+  * [#9158](https://github.com/babel/babel/pull/9158) add triage label to new issues [skip ci]. ([@danez](https://github.com/danez))
+  * [#9143](https://github.com/babel/babel/pull/9143) Fix a typo from the issue template for bugs. ([@saschanaz](https://github.com/saschanaz))
+  * [#9133](https://github.com/babel/babel/pull/9133) Move to travis vm based builds. ([@danez](https://github.com/danez))
+  * [#9132](https://github.com/babel/babel/pull/9132) Ensure we always use repository versions of babel dependencies in tests. ([@danez](https://github.com/danez))
+  * [#9131](https://github.com/babel/babel/pull/9131) Update issue templates [skip ci]. ([@hzoo](https://github.com/hzoo))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`
+  * [#9059](https://github.com/babel/babel/pull/9059) Move decorators transform to @babel/helper-create-class-features-plugin. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`, `babel-parser`, `babel-template`
+  * [#9128](https://github.com/babel/babel/pull/9128) Fix running flow on travis and update flow. ([@danez](https://github.com/danez))
+
 ## v7.2.1 (2018-12-04)
 
 This release fixes a regression introduced in v7.2.0 (https://github.com/babel/babel/issues/9120)
@@ -324,7 +839,7 @@ No change from rc.4. Finally released as https://babeljs.io/blog/2018/08/27/7.0.
 
 ## v7.0.0-rc.2 (2018-08-21)
 
-A notable change is the addition of https://github.com/babel/babel/pull/8485 which enables https://github.com/babel/babel-loader/pull/660 (automatically doing `modules: false` for `@babel/preset-env` when using `babel-loader`. 
+A notable change is the addition of https://github.com/babel/babel/pull/8485 which enables https://github.com/babel/babel-loader/pull/660 (automatically doing `modules: false` for `@babel/preset-env` when using `babel-loader`.
 
 #### :boom: Breaking Change
 * `babel-core`
@@ -479,7 +994,7 @@ Breaking Change in beta:
 ## v7.0.0-beta.53 (2018-07-11)
 
 - Fix for regression with paths on windows due to micromatch upgrade, remove yearly presets (not published)
-- (There was an issue with the Stage presets in this release, but it is also deprecated) 
+- (There was an issue with the Stage presets in this release, but it is also deprecated)
 
 #### :boom: Breaking Change
 * `babel-*`
@@ -2133,7 +2648,7 @@ Initial release of typescript equivalent of how Babel handles flow with a new `b
 * `babel-plugin-check-es2015-constants`
   * [#5930](https://github.com/babel/babel/pull/5930) Spec compliancy of check-es2015-constants plugin. ([@maurobringolf](https://github.com/maurobringolf))
 
-> Instead of throwing a compile time error when const is violated, Babel should insert a throw statement before the violation. 
+> Instead of throwing a compile time error when const is violated, Babel should insert a throw statement before the violation.
 
 #### :boom: Breaking Change
 * `babel-plugin-transform-flow-comments`

Gulpfile.js

@@ -6,19 +6,17 @@ const chalk = require("chalk");
 const newer = require("gulp-newer");
 const babel = require("gulp-babel");
 const gulpWatch = require("gulp-watch");
-const gutil = require("gulp-util");
+const fancyLog = require("fancy-log");
 const filter = require("gulp-filter");
 const gulp = require("gulp");
 const path = require("path");
 const webpack = require("webpack");
 const merge = require("merge-stream");
-const rollup = require("rollup-stream");
-const source = require("vinyl-source-stream");
-const buffer = require("vinyl-buffer");
+const rollup = require("rollup");
 const rollupBabel = require("rollup-plugin-babel");
 const rollupNodeResolve = require("rollup-plugin-node-resolve");
-const registerStandalonePackageTask = require("./scripts/gulp-tasks")
-  .registerStandalonePackageTask;
+const rollupReplace = require("rollup-plugin-replace");
+const { registerStandalonePackageTask } = require("./scripts/gulp-tasks");
 
 const sources = ["codemods", "packages"];
 
@@ -36,13 +34,9 @@ function getIndexFromPackage(name) {
   return `${name}/src/index.js`;
 }
 
-function compilationLogger(rollup) {
+function compilationLogger() {
   return through.obj(function(file, enc, callback) {
-    gutil.log(
-      `Compiling '${chalk.cyan(file.relative)}'${
-        rollup ? " with rollup " : ""
-      }...`
-    );
+    fancyLog(`Compiling '${chalk.cyan(file.relative)}'...`);
     callback(null, file);
   });
 }
@@ -50,7 +44,7 @@ function compilationLogger(rollup) {
 function errorsLogger() {
   return plumber({
     errorHandler(err) {
-      gutil.log(err.stack);
+      fancyLog(err.stack);
     },
   });
 }
@@ -91,32 +85,40 @@ function buildBabel(exclude) {
 }
 
 function buildRollup(packages) {
-  return merge(
+  return Promise.all(
     packages.map(pkg => {
-      return rollup({
-        input: getIndexFromPackage(pkg),
-        format: "cjs",
-        plugins: [
-          rollupBabel({
-            envName: "babel-parser",
-          }),
-          rollupNodeResolve(),
-        ],
-      })
-        .pipe(source("index.js"))
-        .pipe(buffer())
-        .pipe(errorsLogger())
-        .pipe(compilationLogger(/* rollup */ true))
-        .pipe(gulp.dest(path.join(pkg, "lib")));
+      const input = getIndexFromPackage(pkg);
+      fancyLog(`Compiling '${chalk.cyan(input)}' with rollup ...`);
+      return rollup
+        .rollup({
+          input,
+          plugins: [
+            rollupReplace({
+              "process.env.NODE_ENV": JSON.stringify(process.env.NODE_ENV),
+            }),
+            rollupBabel({
+              envName: "babel-parser",
+            }),
+            rollupNodeResolve(),
+          ],
+        })
+        .then(bundle => {
+          return bundle.write({
+            file: path.join(pkg, "lib/index.js"),
+            format: "cjs",
+            name: "babel-parser",
+            sourcemap: process.env.NODE_ENV !== "production",
+          });
+        });
     })
   );
 }
 
-gulp.task("build", function() {
-  const bundles = ["packages/babel-parser"];
+const bundles = ["packages/babel-parser"];
 
-  return merge([buildBabel(/* exclude */ bundles), buildRollup(bundles)]);
-});
+gulp.task("build-rollup", () => buildRollup(bundles));
+gulp.task("build-babel", () => buildBabel(/* exclude */ bundles));
+gulp.task("build", gulp.parallel("build-rollup", "build-babel"));
 
 gulp.task("default", gulp.series("build"));
 
@@ -138,7 +140,7 @@ registerStandalonePackageTask(
   "babel",
   "Babel",
   path.join(__dirname, "packages"),
-  require("./packages/babel-core/package.json").version
+  require("./packages/babel-standalone/package.json").version
 );
 
 const presetEnvWebpackPlugins = [
@@ -167,6 +169,6 @@ registerStandalonePackageTask(
   "babel-preset-env",
   "babelPresetEnv",
   path.join(__dirname, "packages"),
-  require("./packages/babel-preset-env/package.json").version,
+  require("./packages/babel-preset-env-standalone/package.json").version,
   presetEnvWebpackPlugins
 );

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2014-2018 Sebastian McKenzie and other contributors
+Copyright (c) 2014-present Sebastian McKenzie and other contributors
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

Makefile

@@ -1,6 +1,6 @@
 MAKEFLAGS = -j1
-FLOW_COMMIT = e192e1a4793dd8e43415fbfe8046d832cb513c8b
-TEST262_COMMIT = 238c88d4a084d9928372954e2fec54af2c951281
+FLOW_COMMIT = 09669846b7a7ca5a6c23c12d56bb3bebdafd67e9
+TEST262_COMMIT = de567d3aa5de4eaa11e00131d26b9fe77997dfb0
 
 # Fix color output until TravisCI fixes https://github.com/travis-ci/travis-ci/issues/7967
 export FORCE_COLOR = true
@@ -11,12 +11,13 @@ SOURCES = packages codemods
 
 build: clean clean-lib
 	./node_modules/.bin/gulp build
+	node ./packages/babel-standalone/scripts/generate.js
 	node ./packages/babel-types/scripts/generateTypeHelpers.js
 	# call build again as the generated files might need to be compiled again.
 	./node_modules/.bin/gulp build
 	# generate flow and typescript typings
-	node scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
-	node scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
+	node packages/babel-types/scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
 ifneq ("$(BABEL_COVERAGE)", "true")
 	make build-standalone
 	make build-preset-env-standalone
@@ -46,7 +47,8 @@ watch: clean clean-lib
 	# development too.
 	BABEL_ENV=development ./node_modules/.bin/gulp build-no-bundle
 	node ./packages/babel-types/scripts/generateTypeHelpers.js
-	node scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
 	BABEL_ENV=development ./node_modules/.bin/gulp watch
 
 flow:
@@ -62,6 +64,7 @@ fix-json:
 	./node_modules/.bin/prettier "{packages,codemod}/*/test/fixtures/**/options.json" --write --loglevel warn
 
 clean: test-clean
+	rm -f .npmrc
 	rm -rf packages/babel-polyfill/browser*
 	rm -rf packages/babel-polyfill/dist
 	rm -rf coverage
@@ -102,7 +105,7 @@ test-flow-update-whitelist:
 bootstrap-test262:
 	rm -rf ./build/test262
 	mkdir -p ./build
-	git clone --branch=master --single-branch --shallow-since=2018-11-01 https://github.com/tc39/test262.git ./build/test262
+	git clone --branch=master --single-branch --shallow-since=2019-01-01 https://github.com/tc39/test262.git ./build/test262
 	cd build/test262 && git checkout $(TEST262_COMMIT)
 
 test-test262:
@@ -121,22 +124,39 @@ prepublish-build:
 	rm -rf packages/babel-runtime/helpers
 	rm -rf packages/babel-runtime-corejs2/helpers
 	rm -rf packages/babel-runtime-corejs2/core-js
-	BABEL_ENV=production make build-dist
+	NODE_ENV=production BABEL_ENV=production make build-dist
 	make clone-license
 
 prepublish:
-	git pull --rebase
+	make bootstrap-only
 	make prepublish-build
 	make test
 
+new-version:
+	git pull --rebase
+	./node_modules/.bin/lerna version --force-publish="@babel/runtime,@babel/runtime-corejs2,@babel/runtime-corejs3,@babel/standalone,@babel/preset-env-standalone"
+
+# NOTE: Run make new-version first
 publish: prepublish
-	# --only-explicit-updates
-	./node_modules/.bin/lerna publish --force-publish="@babel/runtime,@babel/runtime-corejs2" --dangerously-only-publish-explicit-updates-this-is-a-custom-flag-for-babel-and-you-should-not-be-using-it-just-deal-with-more-packages-being-published-it-is-not-a-big-deal
+	./node_modules/.bin/lerna publish from-git --require-scripts
 	make clean
 
-bootstrap: clean-all
+publish-ci: prepublish
+ifneq ("$(NPM_TOKEN)", "")
+	echo "//registry.npmjs.org/:_authToken=${NPM_TOKEN}" > .npmrc
+else
+	echo "Missing NPM_TOKEN env var"
+	exit 1
+endif
+	./node_modules/.bin/lerna publish from-git --require-scripts --yes
+	rm -f .npmrc
+	make clean
+
+bootstrap-only: clean-all
 	yarn --ignore-engines
 	./node_modules/.bin/lerna bootstrap -- --ignore-engines
+
+bootstrap: bootstrap-only
 	make build
 	cd packages/babel-plugin-transform-runtime; \
 	node scripts/build-dist.js

README.md

@@ -8,12 +8,16 @@
   The compiler for writing next generation JavaScript.
 </p>
 
+<p align="center">
+    <a href="https://www.npmjs.com/package/@babel/core"><img alt="v7 npm Downloads" src="https://img.shields.io/npm/dm/@babel/core.svg?maxAge=43200&label=v7%20downloads"></a>
+  <a href="https://www.npmjs.com/package/babel-core"><img alt="v6 npm Downloads" src="https://img.shields.io/npm/dm/babel-core.svg?maxAge=43200&label=v6%20downloads"></a>
+</p>
 <p align="center">
   <a href="https://travis-ci.org/babel/babel"><img alt="Travis Status" src="https://img.shields.io/travis/babel/babel/master.svg?label=travis&maxAge=43200"></a>
   <a href="https://circleci.com/gh/babel/babel"><img alt="CircleCI Status" src="https://img.shields.io/circleci/project/github/babel/babel/master.svg?label=circle&maxAge=43200"></a>
   <a href="https://codecov.io/github/babel/babel"><img alt="Coverage Status" src="https://img.shields.io/codecov/c/github/babel/babel/master.svg?maxAge=43200"></a>
   <a href="https://slack.babeljs.io/"><img alt="Slack Status" src="https://slack.babeljs.io/badge.svg"></a>
-  <a href="https://www.npmjs.com/package/babel-core"><img alt="npm Downloads" src="https://img.shields.io/npm/dm/babel-core.svg?maxAge=43200"></a>
+  <a href="https://twitter.com/intent/follow?screen_name=babeljs"><img alt="Follow on Twitter" src="https://img.shields.io/twitter/follow/babeljs.svg?style=social&label=Follow"></a>
 </p>
 
 <h2 align="center">Supporting Babel</h2>
@@ -27,11 +31,11 @@
 Babel (pronounced ["babble"](https://soundcloud.com/sebmck/how-to-pronounce-babel))  is a community-driven project used by many companies and projects, and is maintained by a group of [volunteers](https://babeljs.io/team). If you'd like to help support the future of the project, please consider:
 
 - Giving developer time on the project. (Message us on [Twitter](https://twitter.com/babeljs) or [Slack](https://slack.babeljs.io/) for guidance!)
-- Giving funds by becoming a sponsor (see below)!
+- Giving funds by becoming a sponsor on [Open Collective](https://opencollective.com/babel) or [Patreon](https://www.patreon.com/henryzhu)!
 
-## Open Collective Sponsors
+## Sponsors
 
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/babel#sponsor)]
+Our top sponsors are shown below! [[Become a sponsor](https://opencollective.com/babel#sponsor)]
 
 <a href="https://opencollective.com/babel/sponsor/0/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/babel/sponsor/1/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/1/avatar.svg"></a>
@@ -49,15 +53,6 @@ Become a sponsor and get your logo on our README on Github with a link to your s
   <a href="https://opencollective.com/babel/sponsor/13/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/13/avatar.svg"></a>
   <a href="https://opencollective.com/babel/sponsor/14/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/14/avatar.svg"></a>
 
-## Patreon Sponsors
-
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://www.patreon.com/henryzhu)]
-
-## Bronze
-
-<a href="http://teamextension.io/" target="_blank"><img src="https://teamextension.io/dist/img/logo/te-logo-compact.png" height="64"></a>
-<a href="https://webflow.com/" target="_blank"><img src="https://opencollective.com/proxy/images/?src=https%3A%2F%2Fopencollective-production.s3-us-west-1.amazonaws.com%2F4a5024b0-8cf2-11e7-b1a2-b30b1de1463c.png&height=64"></a>
-
 ## Intro
 
 Babel is a tool that helps you write code in the latest version of JavaScript. When your supported environments don't support certain features natively, Babel will help you compile those features down to a supported version.
@@ -83,7 +78,7 @@ Try it out at our [REPL](https://babeljs.io/repl/build/master#?code_lz=NoRgNATGD
 
 ### Who maintains Babel?
 
-Mostly a handful of volunteers! Please check out our [team page](https://babeljs.io/team)!
+Mostly a handful of volunteers, funded by you! Please check out our [team page](https://babeljs.io/team)!
 
 ### Looking for support?
 

SECURITY.md

@@ -0,0 +1,19 @@
+# Security Policy
+
+## Supported Versions
+
+This is the list of versions of `babel` which are
+currently being supported with security updates.
+
+| Version  | Supported          |
+| -------- | ------------------ |
+| 7.x      | :white_check_mark: |
+| 6.26.x   | :white_check_mark: |
+| < 6.26.0 | :x:                |
+
+## Reporting a Vulnerability
+
+To report a vulnerability please send an email with the details to security@babeljs.io. 
+This will help us to assess the risk and start the necessary steps.
+
+Thanks for helping to keep babel secure.

SONG.md

@@ -19,7 +19,8 @@ Generators, const and let
 I used them all without regret  
 And it’s a terse and a destructured Hallelujah  
 
-Hallelujah etc.
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Well my faith was strong but I needed proof  
 The standard was my source of truth  
@@ -28,7 +29,9 @@ So even though you weren’t impressed
 I checked the build against the spec  
 And it’s a more-or-less compliant Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Now you say the build step’s too complex  
 And you claim no need for ES Next  
@@ -37,7 +40,9 @@ But your code grows older with each line
 It’s a joyless dirge on a withered vine  
 It’s a threnody for a bygone Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Yes I learned about the danger signs  
 How they’d polyfilled a thousand lines  
@@ -46,7 +51,9 @@ Still I disregarded common sense
 Now my source is small but the build’s immense  
 And it’s a slow and unresponsive Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 There was a time when they let me know  
 What’s really going on below  
@@ -55,7 +62,9 @@ And debugging’s not a progress march
 It’s a frenzied fumble in the dark  
 It’s a labyrinthine search for Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Well, maybe there’s a god up there  
 But all I ever got from prayers  
@@ -64,6 +73,8 @@ And that anguished cry you hear at night
 Is the plugin I forgot to write  
 It’s a cold and it’s a broken Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 [Angus Croll](https://github.com/angus-c)  

babel.config.js

@@ -5,21 +5,26 @@ module.exports = function(api) {
 
   const includeCoverage = process.env.BABEL_COVERAGE === "true";
 
-  const envOpts = {
+  const envOptsNoTargets = {
     loose: true,
     modules: false,
     exclude: ["transform-typeof-symbol"],
   };
+  const envOpts = Object.assign({}, envOptsNoTargets);
 
   let convertESM = true;
   let ignoreLib = true;
   let includeRuntime = false;
+  const nodeVersion = "6.9";
 
   switch (env) {
     // Configs used during bundling builds.
     case "babel-parser":
       convertESM = false;
       ignoreLib = false;
+      envOpts.targets = {
+        node: nodeVersion,
+      };
       break;
     case "standalone":
       convertESM = false;
@@ -29,7 +34,7 @@ module.exports = function(api) {
     case "production":
       // Config during builds before publish.
       envOpts.targets = {
-        node: "6.9",
+        node: nodeVersion,
       };
       break;
     case "development":
@@ -93,6 +98,11 @@ module.exports = function(api) {
           convertESM ? "@babel/transform-modules-commonjs" : null,
         ].filter(Boolean),
       },
+      {
+        test: "./packages/babel-polyfill",
+        presets: [["@babel/env", envOptsNoTargets]],
+        plugins: [["@babel/transform-modules-commonjs", { lazy: false }]],
+      },
       {
         // The vast majority of our src files are modules, but we use
         // unambiguous to keep things simple until we get around to renaming
@@ -111,9 +121,11 @@ module.exports = function(api) {
           "packages/babel-runtime",
           /[\\/]node_modules[\\/](?:@babel\/runtime|babel-runtime|core-js)[\\/]/,
         ],
-        plugins: [includeRuntime ? "@babel/transform-runtime" : null].filter(
-          Boolean
-        ),
+        plugins: [
+          includeRuntime
+            ? ["@babel/transform-runtime", { version: "7.4.4" }]
+            : null,
+        ].filter(Boolean),
       },
     ].filter(Boolean),
   };

codecov.yml

@@ -8,3 +8,5 @@ coverage:
         target: "80%"
     patch:
       enabled: false
+ignore:
+  - packages/babel-types/src/*/generated/index.js

codemods/babel-plugin-codemod-optional-catch-binding/test/fixtures/codemod-optional-catch-binding/try-catch-block-duplicate-variable-declaration/input.js

@@ -1,5 +0,0 @@
-try {
-  throw 0;
-} catch (e) {
-  let e = new TypeError('Duplicate variable declaration; will throw an error.');
-}

codemods/babel-plugin-codemod-optional-catch-binding/test/fixtures/codemod-optional-catch-binding/try-catch-block-duplicate-variable-declaration/options.json

@@ -1,4 +0,0 @@
-{
-  "plugins": ["../../../../lib"],
-  "throws": "Duplicate declaration \"e\""
-}

eslint-local-rules.js

@@ -1,11 +0,0 @@
-"use strict";
-
-const noDeprecatedClone = require("./scripts/eslint_rules/no-deprecated-clone");
-const noUndefinedIdentifier = require("./scripts/eslint_rules/no-undefined-identifier");
-const pluginName = require("./scripts/eslint_rules/plugin-name");
-
-module.exports = {
-  "no-deprecated-clone": noDeprecatedClone,
-  "no-undefined-identifier": noUndefinedIdentifier,
-  "plugin-name": pluginName,
-};

lerna.json

@@ -1,34 +1,34 @@
 {
-  "lerna": "2.11.0",
-  "version": "7.2.2",
+  "version": "7.5.1",
   "changelog": {
     "repo": "babel/babel",
     "cacheDir": ".changelog",
     "labels": {
-      "PR: Spec Compliancy :eyeglasses:": ":eyeglasses: Spec Compliancy",
+      "PR: Spec Compliance :eyeglasses:": ":eyeglasses: Spec Compliance",
       "PR: Breaking Change :boom:": ":boom: Breaking Change",
       "PR: New Feature :rocket:": ":rocket: New Feature",
       "PR: Bug Fix :bug:": ":bug: Bug Fix",
       "PR: Polish :nail_care:": ":nail_care: Polish",
       "PR: Docs :memo:": ":memo: Documentation",
-      "PR: Internal :house:": ":house: Internal"
+      "PR: Internal :house:": ":house: Internal",
+      "PR: Performance :running_woman:": ":running_woman: Performance"
     }
   },
-  "commands": {
+  "command": {
     "publish": {
-      "ignore": [
+      "ignoreChanges": [
         "*.md",
-        "*.json",
         "*.txt",
         "test/**",
         "codemods/**",
-        "package.json"
+        "# We ignore every JSON file, except for built-in-modules, built-ins and plugins defined in babel-preset-env/data.",
+        "@(!(built-in-modules|built-ins|plugins|package)).json"
       ]
     }
   },
   "packages": [
-    "packages/*",
-    "codemods/*"
+    "codemods/*",
+    "packages/*"
   ],
   "npmClient": "yarn",
   "npmClientArgs": [

lib/third-party-libs.js.flow

@@ -27,16 +27,31 @@ declare module "lodash/merge" {
 }
 
 declare module "semver" {
+  declare class SemVer {
+    build: Array<string>;
+    loose: ?boolean;
+    major: number;
+    minor: number;
+    patch: number;
+    prerelease: Array<string | number>;
+    raw: string;
+    version: string;
+
+    constructor(version: string | SemVer): SemVer;
+  }
+
   declare module.exports: {
-    valid(v: string): boolean;
+    SemVer: SemVer;
+
+    coerce(version: string | SemVer): SemVer | null;
     gt(v1: string, v2: string): boolean;
+    intersects(r1: string, r2: string): boolean;
     lt(v1: string, v2: string): boolean;
     major(v: string): number;
     minor(v: string): number;
     patch(v: string): number;
     satisfies(v1: string, r1: string): boolean;
-
-    intersects(r1: string, r2: string): boolean;
+    valid(v: string): boolean;
   }
 }
 
@@ -180,3 +195,13 @@ declare module "js-levenshtein" {
     (string, string): number,
   };
 }
+
+declare module "core-js-compat/data" {
+  declare type Target = "node" | "chrome" | "opera" | "edge" | "firefox" | "safari" | "ie" | "ios" | "android" | "electron" | "samsung";
+
+  declare module.exports: {
+    [key: string]: {
+      [target: Target]: string;
+    }
+  }
+}

package.json

@@ -9,68 +9,72 @@
     "test": "make test"
   },
   "devDependencies": {
-    "@babel/cli": "^7.2.0",
-    "@babel/core": "^7.2.0",
-    "@babel/plugin-proposal-class-properties": "^7.2.1",
+    "@babel/cli": "^7.4.4",
+    "@babel/core": "^7.4.5",
+    "@babel/eslint-plugin-development": "^1.0.1",
+    "@babel/plugin-proposal-class-properties": "^7.4.4",
     "@babel/plugin-proposal-export-namespace-from": "^7.2.0",
     "@babel/plugin-proposal-numeric-separator": "^7.2.0",
-    "@babel/plugin-transform-modules-commonjs": "^7.2.0",
-    "@babel/plugin-transform-runtime": "^7.2.0",
-    "@babel/preset-env": "^7.2.0",
+    "@babel/plugin-transform-modules-commonjs": "^7.4.4",
+    "@babel/plugin-transform-runtime": "^7.4.4",
+    "@babel/preset-env": "^7.4.5",
     "@babel/preset-flow": "^7.0.0",
-    "@babel/register": "^7.0.0",
-    "@babel/runtime": "^7.2.0",
-    "babel-core": "^7.0.0-0",
-    "babel-eslint": "^10.0.1",
-    "babel-jest": "^23.6.0",
-    "babel-loader": "^8.0.4",
-    "babel-plugin-transform-charcodes": "^0.1.1",
-    "browserify": "^16.2.2",
+    "@babel/register": "^7.4.4",
+    "@babel/runtime": "^7.4.5",
+    "babel-eslint": "^11.0.0-beta.0",
+    "babel-jest": "^24.8.0",
+    "babel-loader": "^8.0.6",
+    "babel-plugin-transform-charcodes": "^0.2.0",
+    "browserify": "^16.2.3",
     "bundle-collapser": "^1.2.1",
-    "chalk": "^2.3.2",
-    "charcodes": "^0.1.1",
+    "chalk": "^2.4.2",
+    "charcodes": "^0.2.0",
     "derequire": "^2.0.2",
+    "duplicate-package-checker-webpack-plugin": "^2.1.0",
     "enhanced-resolve": "^3.0.0",
-    "eslint": "^5.9.0",
-    "eslint-config-babel": "^8.0.2",
-    "eslint-plugin-flowtype": "^3.2.0",
-    "eslint-plugin-local-rules": "0.1.0",
-    "eslint-plugin-prettier": "^3.0.0",
-    "flow-bin": "^0.87.0",
-    "graceful-fs": "^4.1.11",
-    "gulp": "^4.0.0",
+    "eslint": "^5.16.0",
+    "eslint-config-babel": "^9.0.0",
+    "eslint-plugin-flowtype": "^3.8.2",
+    "eslint-plugin-import": "^2.17.2",
+    "eslint-plugin-prettier": "^3.1.0",
+    "fancy-log": "^1.3.3",
+    "flow-bin": "^0.94.0",
+    "graceful-fs": "^4.1.15",
+    "gulp": "^4.0.2",
     "gulp-babel": "^8.0.0",
     "gulp-filter": "^5.1.0",
     "gulp-newer": "^1.0.0",
-    "gulp-plumber": "^1.2.0",
+    "gulp-plumber": "^1.2.1",
     "gulp-rename": "^1.4.0",
-    "gulp-uglify": "^3.0.1",
-    "gulp-util": "^3.0.7",
+    "gulp-uglify": "^3.0.2",
     "gulp-watch": "^5.0.1",
-    "husky": "^1.2.0",
-    "jest": "^23.6.0",
-    "lerna": "^2.11.0",
+    "husky": "^2.3.0",
+    "jest": "^24.8.0",
+    "lerna": "^3.14.2",
     "lerna-changelog": "^0.5.0",
-    "lint-staged": "^8.1.0",
-    "lodash": "^4.17.10",
+    "lint-staged": "^8.1.7",
+    "lodash": "^4.17.11",
     "merge-stream": "^1.0.1",
     "output-file-sync": "^2.0.0",
-    "prettier": "^1.15.2",
+    "prettier": "^1.17.1",
     "pump": "^3.0.0",
-    "rimraf": "^2.4.3",
-    "rollup-plugin-babel": "^4.0.0-beta.0",
-    "rollup-plugin-node-resolve": "^3.0.2",
-    "rollup-stream": "^1.24.1",
+    "rimraf": "^2.6.3",
+    "rollup": "^1.12.0",
+    "rollup-plugin-babel": "^4.0.0",
+    "rollup-plugin-node-resolve": "^5.0.0",
+    "rollup-plugin-replace": "^2.2.0",
     "test262-stream": "^1.2.0",
     "through2": "^2.0.0",
-    "vinyl-buffer": "^1.0.1",
-    "vinyl-source-stream": "^2.0.0",
+    "warnings-to-errors-webpack-plugin": "^2.0.0",
     "webpack": "^3.4.1",
     "webpack-dependency-suite": "^2.4.4",
     "webpack-stream": "^4.0.0"
   },
+  "resolutions": {
+    "@lerna/**/@lerna/collect-updates": "https://github.com/nicolo-ribaudo/lerna.git#babel-collect-updates"
+  },
   "engines": {
-    "node": ">= 6.9.0 < 12.0.0",
+    "node": ">= 6.9.0 < 13.0.0",
     "npm": ">= 3.x <= 6.x",
     "yarn": ">=0.27.5 || >=1.0.0-20170811"
   },
@@ -105,7 +109,9 @@
       "_browser\\.js"
     ],
     "testEnvironment": "node",
-    "setupTestFrameworkScriptFile": "<rootDir>/test/testSetupFile.js",
+    "setupFilesAfterEnv": [
+      "<rootDir>/test/testSetupFile.js"
+    ],
     "transformIgnorePatterns": [
       "/node_modules/",
       "<rootDir>/packages/babel-standalone/babel(\\.min)?\\.js",
@@ -128,5 +134,6 @@
     "moduleNameMapper": {
       "^@babel/([a-zA-Z0-9_-]+)$": "<rootDir>/packages/babel-$1/"
     }
-  }
+  },
+  "dependencies": {}
 }

packages/babel-cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@babel/cli",
-  "version": "7.2.0",
+  "version": "7.5.0",
   "description": "Babel command line.",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
@@ -23,21 +23,21 @@
     "convert-source-map": "^1.1.0",
     "fs-readdir-recursive": "^1.1.0",
     "glob": "^7.0.0",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.11",
     "mkdirp": "^0.5.1",
     "output-file-sync": "^2.0.0",
     "slash": "^2.0.0",
     "source-map": "^0.5.0"
   },
   "optionalDependencies": {
-    "chokidar": "^2.0.3"
+    "chokidar": "^2.0.4"
   },
   "peerDependencies": {
     "@babel/core": "^7.0.0-0"
   },
   "devDependencies": {
-    "@babel/core": "^7.2.0",
-    "@babel/helper-fixtures": "^7.2.0"
+    "@babel/core": "^7.5.0",
+    "@babel/helper-fixtures": "^7.4.4"
   },
   "bin": {
     "babel": "./bin/babel.js",

packages/babel-cli/src/babel/options.js

@@ -22,7 +22,7 @@ commander.option(
   "comma-separated list of plugin names",
   collect,
 );
-commander.option("--config-file [path]", "Path a to .babelrc file to use");
+commander.option("--config-file [path]", "Path to a .babelrc file to use");
 commander.option(
   "--env-name [name]",
   "The name of the 'env' to use when loading configs and plugins. " +

packages/babel-cli/test/index.js

@@ -86,7 +86,7 @@ const assertTest = function(stdout, stderr, opts, cwd) {
   }
 
   if (opts.outFiles) {
-    const actualFiles = readDir(path.join(tmpLoc), fileFilter);
+    const actualFiles = readDir(tmpLoc, fileFilter);
 
     Object.keys(actualFiles).forEach(function(filename) {
       if (
@@ -171,12 +171,12 @@ const buildTest = function(binName, testName, opts) {
 };
 
 fs.readdirSync(fixtureLoc).forEach(function(binName) {
-  if (binName[0] === ".") return;
+  if (binName.startsWith(".")) return;
 
   const suiteLoc = path.join(fixtureLoc, binName);
   describe("bin/" + binName, function() {
     fs.readdirSync(suiteLoc).forEach(function(testName) {
-      if (testName[0] === ".") return;
+      if (testName.startsWith(".")) return;
 
       const testLoc = path.join(suiteLoc, testName);
 

packages/babel-core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@babel/core",
-  "version": "7.2.2",
+  "version": "7.5.0",
   "description": "Babel compiler core.",
   "main": "lib/index.js",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
@@ -34,22 +34,22 @@
   },
   "dependencies": {
     "@babel/code-frame": "^7.0.0",
-    "@babel/generator": "^7.2.2",
-    "@babel/helpers": "^7.2.0",
-    "@babel/parser": "^7.2.2",
-    "@babel/template": "^7.2.2",
-    "@babel/traverse": "^7.2.2",
-    "@babel/types": "^7.2.2",
+    "@babel/generator": "^7.5.0",
+    "@babel/helpers": "^7.5.0",
+    "@babel/parser": "^7.5.0",
+    "@babel/template": "^7.4.4",
+    "@babel/traverse": "^7.5.0",
+    "@babel/types": "^7.5.0",
     "convert-source-map": "^1.1.0",
     "debug": "^4.1.0",
     "json5": "^2.1.0",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.11",
     "resolve": "^1.3.2",
     "semver": "^5.4.1",
     "source-map": "^0.5.0"
   },
   "devDependencies": {
-    "@babel/helper-transform-fixture-test-runner": "^7.0.0",
-    "@babel/register": "^7.0.0"
+    "@babel/helper-transform-fixture-test-runner": "^7.5.0",
+    "@babel/register": "^7.4.4"
   }
 }

packages/babel-core/src/config/caching.js

@@ -43,7 +43,6 @@ export function makeWeakCache<
 >(
   handler: (ArgT, CacheConfigurator<SideChannel>) => ResultT,
 ): (ArgT, SideChannel) => ResultT {
-  // $FlowIssue https://github.com/facebook/flow/issues/4528
   return makeCachedFunction(new WeakMap(), handler);
 }
 

packages/babel-core/src/config/files/configuration.js

@@ -10,7 +10,7 @@ import {
   makeWeakCache,
   type CacheConfigurator,
 } from "../caching";
-import makeAPI from "../helpers/config-api";
+import makeAPI, { type PluginAPI } from "../helpers/config-api";
 import { makeStaticFileCache } from "./utils";
 import pathPatternToRegex from "../pattern-to-regex";
 import type { FilePackageData, RelativeConfig, ConfigFile } from "./types";
@@ -114,7 +114,7 @@ export function findRootConfig(
 
   const conf = readConfig(filepath, envName, caller);
   if (conf) {
-    debug("Found root config %o in $o.", BABEL_CONFIG_JS_FILENAME, dirname);
+    debug("Found root config %o in %o.", BABEL_CONFIG_JS_FILENAME, dirname);
   }
   return conf;
 }
@@ -132,7 +132,7 @@ export function loadConfig(
     throw new Error(`Config file ${filepath} contains no configuration data`);
   }
 
-  debug("Loaded config %o from $o.", name, dirname);
+  debug("Loaded config %o from %o.", name, dirname);
   return conf;
 }
 
@@ -150,7 +150,7 @@ const LOADING_CONFIGS = new Set();
 
 const readConfigJS = makeStrongCache(
   (
-    filepath,
+    filepath: string,
     cache: CacheConfigurator<{
       envName: string,
       caller: CallerMetadata | void,
@@ -193,7 +193,7 @@ const readConfigJS = makeStrongCache(
     }
 
     if (typeof options === "function") {
-      options = options(makeAPI(cache));
+      options = ((options: any): (api: PluginAPI) => {})(makeAPI(cache));
 
       if (!cache.configured()) throwConfigError();
     }

packages/babel-core/src/config/full.js

@@ -202,7 +202,7 @@ const loadDescriptor = makeWeakCache(
     if (typeof item.then === "function") {
       throw new Error(
         `You appear to be using an async plugin, ` +
-          `which your current version of Babel does not support.` +
+          `which your current version of Babel does not support. ` +
           `If you're using a published plugin, ` +
           `you may need to upgrade your @babel/core version.`,
       );

packages/babel-core/src/config/validation/option-assertions.js

@@ -231,7 +231,7 @@ function assertIgnoreItem(loc: GeneralPath, value: mixed): IgnoreItem {
     throw new Error(
       `${msg(
         loc,
-      )} must be an array of string/Funtion/RegExp values, or undefined`,
+      )} must be an array of string/Function/RegExp values, or undefined`,
     );
   }
   return value;
@@ -337,7 +337,7 @@ function assertPluginItem(loc: GeneralPath, value: mixed): PluginItem {
       if (
         opts !== undefined &&
         opts !== false &&
-        (typeof opts !== "object" || Array.isArray(opts))
+        (typeof opts !== "object" || Array.isArray(opts) || opts === null)
       ) {
         throw new Error(
           `${msg(access(loc, 1))} must be an object, false, or undefined`,

packages/babel-core/src/transformation/file/file.js

@@ -183,7 +183,7 @@ export default class File {
     // and this fails because a prerelease version can only satisfy a range
     // if it is a prerelease within the same major/minor/patch range.
     //
-    // Note: If this is found to have issues, please also revist the logic in
+    // Note: If this is found to have issues, please also revisit the logic in
     // transform-runtime's definitions.js file.
     if (semver.valid(versionRange)) versionRange = `^${versionRange}`;
 

packages/babel-core/src/transformation/index.js

@@ -93,7 +93,7 @@ function transformFile(file: File, pluginPasses: PluginPasses): void {
         if (isThenable(result)) {
           throw new Error(
             `You appear to be using an plugin with an async .pre, ` +
-              `which your current version of Babel does not support.` +
+              `which your current version of Babel does not support. ` +
               `If you're using a published plugin, you may need to upgrade ` +
               `your @babel/core version.`,
           );
@@ -117,7 +117,7 @@ function transformFile(file: File, pluginPasses: PluginPasses): void {
         if (isThenable(result)) {
           throw new Error(
             `You appear to be using an plugin with an async .post, ` +
-              `which your current version of Babel does not support.` +
+              `which your current version of Babel does not support. ` +
               `If you're using a published plugin, you may need to upgrade ` +
               `your @babel/core version.`,
           );
@@ -131,6 +131,7 @@ function isThenable(val: mixed): boolean {
   return (
     !!val &&
     (typeof val === "object" || typeof val === "function") &&
+    !!val.then &&
     typeof val.then === "function"
   );
 }

packages/babel-core/test/fixtures/transformation/misc/regression-1169/output.js

@@ -2,8 +2,8 @@ function foo() {
   var input = ['a', 'b', 'c'];
   var output = {};
 
-  for (var _i = 0; _i < input.length; _i++) {
-    var c = input[_i];
+  for (var _i = 0, _input = input; _i < _input.length; _i++) {
+    var c = _input[_i];
     var name = c;
     output[name] = name;
   }

packages/babel-core/test/fixtures/transformation/misc/regression-2892/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
 
@@ -40,7 +40,7 @@ function () {
                 return _context.stop();
             }
           }
-        }, _callee, this);
+        }, _callee);
       }));
 
       function bar() {
@@ -54,7 +54,7 @@ function () {
   return Foo;
 }();
 
-exports.default = Foo;
+exports["default"] = Foo;
 
 function foo() {
   return _foo.apply(this, arguments);
@@ -86,7 +86,7 @@ function _foo() {
                         return _context2.stop();
                     }
                   }
-                }, _callee2, this);
+                }, _callee2);
               }));
               return _bar2.apply(this, arguments);
             };
@@ -100,7 +100,7 @@ function _foo() {
             return _context3.stop();
         }
       }
-    }, _callee3, this);
+    }, _callee3);
   }));
   return _foo.apply(this, arguments);
 }

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

@@ -38,6 +38,17 @@ describe("option-manager", () => {
       expect(calls).toEqual([]);
     });
 
+    it("throws for null options", () => {
+      const { calls, plugin } = makePlugin();
+      expect(() => {
+        loadOptions({
+          plugins: [[plugin, null]],
+        }).toThrow(/.plugins[0][1] must be an object, false, or undefined/);
+      });
+
+      expect(calls).toEqual([]);
+    });
+
     it("should not throw if a repeated plugin has a different name", () => {
       const { calls: calls1, plugin: plugin1 } = makePlugin();
       const { calls: calls2, plugin: plugin2 } = makePlugin();
@@ -87,7 +98,6 @@ describe("option-manager", () => {
       expect(calls1).toEqual([{ arg: 1 }]);
       expect(calls2).toEqual([{ arg: 2 }]);
     });
-
     it("should merge .env[] presets with parent presets", () => {
       const { calls: calls1, plugin: preset1 } = makePlugin();
       const { calls: calls2, plugin: preset2 } = makePlugin();

packages/babel-generator/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@babel/generator",
-  "version": "7.2.2",
+  "version": "7.5.0",
   "description": "Turns an AST into code.",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
@@ -14,14 +14,14 @@
     "lib"
   ],
   "dependencies": {
-    "@babel/types": "^7.2.2",
+    "@babel/types": "^7.5.0",
     "jsesc": "^2.5.1",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.11",
     "source-map": "^0.5.0",
     "trim-right": "^1.0.1"
   },
   "devDependencies": {
-    "@babel/helper-fixtures": "^7.2.0",
-    "@babel/parser": "^7.2.2"
+    "@babel/helper-fixtures": "^7.4.4",
+    "@babel/parser": "^7.5.0"
   }
 }

packages/babel-generator/src/buffer.js

@@ -235,7 +235,7 @@ export default class Buffer {
   source(prop: string, loc: Location, force?: boolean): void {
     if (prop && !loc) return;
 
-    // Since this is called extremly often, we re-use the same _sourcePosition
+    // Since this is called extremely often, we re-use the same _sourcePosition
     // object for the whole lifetime of the buffer.
     this._normalizePosition(prop, loc, this._sourcePosition, force);
   }

packages/babel-generator/src/generators/base.js

@@ -50,8 +50,45 @@ export function Directive(node: Object) {
   this.semicolon();
 }
 
+// These regexes match an even number of \ followed by a quote
+const unescapedSingleQuoteRE = /(?:^|[^\\])(?:\\\\)*'/;
+const unescapedDoubleQuoteRE = /(?:^|[^\\])(?:\\\\)*"/;
+
+export function DirectiveLiteral(node: Object) {
+  const raw = this.getPossibleRaw(node);
+  if (raw != null) {
+    this.token(raw);
+    return;
+  }
+
+  const { value } = node;
+
+  // NOTE: In directives we can't change escapings,
+  // because they change the behavior.
+  // e.g. "us\x65 string" (\x65 is e) is not a "use strict" directive.
+
+  if (!unescapedDoubleQuoteRE.test(value)) {
+    this.token(`"${value}"`);
+  } else if (!unescapedSingleQuoteRE.test(value)) {
+    this.token(`'${value}'`);
+  } else {
+    throw new Error(
+      "Malformed AST: it is not possible to print a directive containing" +
+        " both unescaped single and double quotes.",
+    );
+  }
+}
+
 export function InterpreterDirective(node: Object) {
   this.token(`#!${node.value}\n`);
 }
 
-export { StringLiteral as DirectiveLiteral } from "./types";
+export function Placeholder(node: Object) {
+  this.token("%%");
+  this.print(node.name);
+  this.token("%%");
+
+  if (node.expectedNode === "Statement") {
+    this.semicolon();
+  }
+}

packages/babel-generator/src/generators/flow.js

@@ -409,7 +409,7 @@ export function ObjectTypeAnnotation(node: Object) {
       indent: true,
       statement: true,
       iterator: () => {
-        if (props.length !== 1) {
+        if (props.length !== 1 || node.inexact) {
           this.token(",");
           this.space();
         }
@@ -419,6 +419,15 @@ export function ObjectTypeAnnotation(node: Object) {
     this.space();
   }
 
+  if (node.inexact) {
+    this.indent();
+    this.token("...");
+    if (props.length) {
+      this.newline();
+    }
+    this.dedent();
+  }
+
   if (node.exact) {
     this.token("|}");
   } else {

packages/babel-generator/src/generators/types.js

@@ -7,6 +7,10 @@ export function Identifier(node: Object) {
   });
 }
 
+export function ArgumentPlaceholder() {
+  this.token("?");
+}
+
 export function RestElement(node: Object) {
   this.token("...");
   this.print(node.argument, node);

packages/babel-generator/src/generators/typescript.js

@@ -231,7 +231,7 @@ export function tsPrintBraced(members, node) {
 }
 
 export function TSArrayType(node) {
-  this.print(node.elementType);
+  this.print(node.elementType, node);
   this.token("[]");
 }
 
@@ -476,6 +476,21 @@ export function TSModuleBlock(node) {
   this.tsPrintBraced(node.body, node);
 }
 
+export function TSImportType(node) {
+  const { argument, qualifier, typeParameters } = node;
+  this.word("import");
+  this.token("(");
+  this.print(argument, node);
+  this.token(")");
+  if (qualifier) {
+    this.token(".");
+    this.print(qualifier, node);
+  }
+  if (typeParameters) {
+    this.print(typeParameters, node);
+  }
+}
+
 export function TSImportEqualsDeclaration(node) {
   const { isExport, id, moduleReference } = node;
   if (isExport) {

packages/babel-generator/src/node/parentheses.js

@@ -35,7 +35,16 @@ export function NullableTypeAnnotation(node: Object, parent: Object): boolean {
   return t.isArrayTypeAnnotation(parent);
 }
 
-export { NullableTypeAnnotation as FunctionTypeAnnotation };
+export function FunctionTypeAnnotation(node: Object, parent: Object): boolean {
+  return (
+    // (() => A) | (() => B)
+    t.isUnionTypeAnnotation(parent) ||
+    // (() => A) & (() => B)
+    t.isIntersectionTypeAnnotation(parent) ||
+    // (() => A)[]
+    t.isArrayTypeAnnotation(parent)
+  );
+}
 
 export function UpdateExpression(node: Object, parent: Object): boolean {
   return (
@@ -127,6 +136,18 @@ export function TSTypeAssertion() {
   return true;
 }
 
+export function TSUnionType(node: Object, parent: Object): boolean {
+  return (
+    t.isTSArrayType(parent) ||
+    t.isTSOptionalType(parent) ||
+    t.isTSIntersectionType(parent) ||
+    t.isTSUnionType(parent) ||
+    t.isTSRestType(parent)
+  );
+}
+
+export { TSUnionType as TSIntersectionType };
+
 export function BinaryExpression(node: Object, parent: Object): boolean {
   // let i = (1 in []);
   // for ((1 in []);;);

packages/babel-generator/src/printer.js

@@ -367,7 +367,7 @@ export default class Printer {
 
     const loc = t.isProgram(node) || t.isFile(node) ? null : node.loc;
     this.withSource("start", loc, () => {
-      this[node.type](node, parent);
+      printMethod.call(this, node, parent);
     });
 
     this._printTrailingComments(node);

packages/babel-generator/test/fixtures/comments/create-parenthesized-expressions/input.js

@@ -0,0 +1,12 @@
+// One
+(1);
+
+/* Two */
+(2);
+
+(
+  // Three
+  3
+);
+
+(/* Four */ 4);

packages/babel-generator/test/fixtures/comments/create-parenthesized-expressions/options.json

@@ -0,0 +1,3 @@
+{
+  "parserOpts": {"createParenthesizedExpressions": true}
+}

packages/babel-generator/test/fixtures/comments/create-parenthesized-expressions/output.js

@@ -0,0 +1,10 @@
+// One
+(1);
+/* Two */
+
+(2);
+( // Three
+3);
+(
+/* Four */
+4);

packages/babel-generator/test/fixtures/edgecase/return-with-retainlines-option/input.js

@@ -4,7 +4,7 @@ function foo(l) {
   );
 }
 
-function foo() {
+function foo2() {
   return (
     1 && 2
   ) || 3;

packages/babel-generator/test/fixtures/edgecase/return-with-retainlines-option/output.js

@@ -4,7 +4,7 @@ function foo(l) {
 
 }
 
-function foo() {
+function foo2() {
   return (
     1 && 2 ||
     3);

packages/babel-generator/test/fixtures/edgecase/single-arg-async-arrow-with-retainlines/input.js

@@ -2,8 +2,8 @@ var fn = async (
     arg
 ) => {}
 
-async (x)
-=> {}
+async (x) =>
+{}
 
 async x => {}
 

packages/babel-generator/test/fixtures/edgecase/unary-op/options.json

@@ -0,0 +1,3 @@
+{
+  "strictMode": false
+}

packages/babel-generator/test/fixtures/escapes/jsonEscape/input.js

@@ -1 +1,2 @@
+0; // Not a directive
 "©";

packages/babel-generator/test/fixtures/escapes/jsonEscape/output.js

@@ -1 +1,2 @@
+0;// Not a directive
 "\u00A9";

packages/babel-generator/test/fixtures/flow/declare-exports/input.js

@@ -17,6 +17,7 @@ declare export * from 'asd';
 declare export { a, b };
 declare export {};
 declare export { c, d } from 'bar';
+var a, b;
 
 declare module B {
   declare export type B = {};
@@ -24,9 +25,9 @@ declare module B {
 }
 
 declare module "foo" { declare export type * from "bar"; }
-declare export opaque type Foo;
+declare export opaque type Foo1;
 declare export opaque type Bar<T>;
 declare export opaque type Baz: Foo;
-declare export opaque type Foo<T>: Bar<T>;
-declare export opaque type Foo<T>: Bar;
-declare export opaque type Foo: Bar<T>;
+declare export opaque type Foo3<T>: Bar<T>;
+declare export opaque type Foo4<T>: Bar;
+declare export opaque type Foo5: Bar<T>;

packages/babel-generator/test/fixtures/flow/declare-exports/output.js

@@ -26,6 +26,7 @@ declare export * from 'asd';
 declare export { a, b };
 declare export {};
 declare export { c, d } from 'bar';
+var a, b;
 declare module B {
   declare export type B = {};
   declare export interface Moon {}
@@ -33,9 +34,9 @@ declare module B {
 declare module "foo" {
   declare export type * from "bar";
 }
-declare export opaque type Foo;
+declare export opaque type Foo1;
 declare export opaque type Bar<T>;
 declare export opaque type Baz: Foo;
-declare export opaque type Foo<T>: Bar<T>;
-declare export opaque type Foo<T>: Bar;
-declare export opaque type Foo: Bar<T>;
+declare export opaque type Foo3<T>: Bar<T>;
+declare export opaque type Foo4<T>: Bar;
+declare export opaque type Foo5: Bar<T>;

packages/babel-generator/test/fixtures/flow/def-site-variance/input.js

@@ -1,10 +1,10 @@
 class C1<+T, -U> {}
 function f<+T, -U>() {}
 type T<+T, -U> = {};
-type T = { +p: T };
-type T = { -p: T };
-type T = { +[k:K]: V };
-type T = { -[k:K]: V };
+type T2 = { +p: T };
+type T3 = { -p: T };
+type T4 = { +[k:K]: V };
+type T5 = { -[k:K]: V };
 interface I { +p: T }
 interface I { -p: T }
 interface I { +[k:K]: V }

packages/babel-generator/test/fixtures/flow/def-site-variance/output.js

@@ -3,16 +3,16 @@ class C1<+T, -U> {}
 function f<+T, -U>() {}
 
 type T<+T, -U> = {};
-type T = {
+type T2 = {
   +p: T
 };
-type T = {
+type T3 = {
   -p: T
 };
-type T = {
+type T4 = {
   +[k: K]: V
 };
-type T = {
+type T5 = {
   -[k: K]: V
 };
 interface I {

packages/babel-generator/test/fixtures/flow/implements/input.js

@@ -1,5 +1,5 @@
-class A implements B {}
-class A implements B, C {}
-declare class A implements B {}
-declare class A mixins B implements C {}
-declare class A implements B, C {}
+class A1 implements B {}
+class A2 implements B, C {}
+declare class A3 implements B {}
+declare class A4 mixins B implements C {}
+declare class A5 implements B, C {}

packages/babel-generator/test/fixtures/flow/implements/output.js

@@ -1,7 +1,7 @@
-class A implements B {}
+class A1 implements B {}
 
-class A implements B, C {}
+class A2 implements B, C {}
 
-declare class A implements B {}
-declare class A mixins B implements C {}
-declare class A implements B, C {}
+declare class A3 implements B {}
+declare class A4 mixins B implements C {}
+declare class A5 implements B, C {}

packages/babel-generator/test/fixtures/flow/interface-types/input.js

@@ -1,3 +1,4 @@
 type A = interface { p: string };
 type B = interface extends X { p: string };
 type C = interface extends X, Y { p: string };
+type D = interface extends X.Y<Z> { p: string };

packages/babel-generator/test/fixtures/flow/interface-types/output.js

@@ -6,4 +6,7 @@ type B = interface extends X {
 };
 type C = interface extends X, Y {
   p: string
-};
+};
+type D = interface extends X.Y<Z> {
+  p: string
+};

packages/babel-generator/test/fixtures/flow/interfaces-module-and-script/input.js

@@ -1,9 +1,9 @@
-interface A {}
-interface A extends B {}
-interface A<T> extends B<T>, C<T> {}
-interface A { foo: () => number; }
+interface A1 {}
+interface A2 extends B {}
+interface A3<T> extends B<T>, C<T> {}
+interface A4 { foo: () => number; }
 interface Dictionary { [index: string]: string; length: number; }
-class Foo implements Bar {}
-class Foo extends Bar implements Bat, Man<number> {}
-class Foo extends class Bar implements Bat {} {}
-class Foo extends class Bar implements Bat {} implements Man {}
+class Foo1 implements Bar {}
+class Foo2 extends Bar implements Bat, Man<number> {}
+class Foo3 extends class Bar implements Bat {} {}
+class Foo4 extends class Bar implements Bat {} implements Man {}

packages/babel-generator/test/fixtures/flow/interfaces-module-and-script/output.js

@@ -1,7 +1,7 @@
-interface A {}
-interface A extends B {}
-interface A<T> extends B<T>, C<T> {}
-interface A {
+interface A1 {}
+interface A2 extends B {}
+interface A3<T> extends B<T>, C<T> {}
+interface A4 {
   foo: () => number
 }
 interface Dictionary {
@@ -9,10 +9,10 @@ interface Dictionary {
   [index: string]: string,
 }
 
-class Foo implements Bar {}
+class Foo1 implements Bar {}
 
-class Foo extends Bar implements Bat, Man<number> {}
+class Foo2 extends Bar implements Bat, Man<number> {}
 
-class Foo extends class Bar implements Bat {} {}
+class Foo3 extends class Bar implements Bat {} {}
 
-class Foo extends class Bar implements Bat {} implements Man {}
+class Foo4 extends class Bar implements Bat {} implements Man {}

packages/babel-generator/test/fixtures/flow/internal-slot/input.js

@@ -1,7 +1,7 @@
 declare class C { static [[foo]]: T }
 declare class C { [[foo]]: T }
-interface T { [[foo]]: X }
-interface T { [[foo]](): X }
-type T = { [[foo]]: X }
-type T = { [[foo]](): X }
-type T = { [[foo]]?: X }
+interface I { [[foo]]: X }
+interface I { [[foo]](): X }
+type T1 = { [[foo]]: X }
+type T2 = { [[foo]](): X }
+type T3 = { [[foo]]?: X }

packages/babel-generator/test/fixtures/flow/internal-slot/output.js

@@ -4,18 +4,18 @@ declare class C {
 declare class C {
   [[foo]]: T
 }
-interface T {
+interface I {
   [[foo]]: X
 }
-interface T {
+interface I {
   [[foo]]() => X
 }
-type T = {
+type T1 = {
   [[foo]]: X
 };
-type T = {
+type T2 = {
   [[foo]]() => X
 };
-type T = {
+type T3 = {
   [[foo]]?: X
-};
+};

packages/babel-generator/test/fixtures/flow/object-literal-types-compact/input.js

@@ -0,0 +1,4 @@
+type T1 = { ... };
+type T2 = { a: { b: { c: {...}, ... }, ... } }
+type T3 = { foo: number, ... };
+type T4 = { foo: number, bar: string, ... };

packages/babel-generator/test/fixtures/flow/object-literal-types-compact/options.json

@@ -0,0 +1,3 @@
+{
+  "compact": true
+}

packages/babel-generator/test/fixtures/flow/object-literal-types-compact/output.js

@@ -0,0 +1 @@
+type T1={...};type T2={a:{b:{c:{...},...},...}};type T3={foo:number,...};type T4={foo:number,bar:string,...};

packages/babel-generator/test/fixtures/flow/object-literal-types/input.js

@@ -1,11 +1,15 @@
 type U = {};
 type V = {};
-type T = { ...U, };
-type T = { ...U, ...V };
-type T = { p: V, ...U };
-type T = { ...U, p: V, };
-type T = { ...{}|{ p: V, }};
-type T = { foo(): number }
-type T = { foo: () => number }
-type T = { [string]: U };
-type T = { [param: string]: U };
+type T1 = { ...U, };
+type T2 = { ...U, ...V };
+type T3 = { p: V, ...U };
+type T4 = { ...U, p: V, };
+type T5 = { ...{}|{ p: V, }};
+type T6 = { foo(): number }
+type T7 = { foo: () => number }
+type T8 = { [string]: U };
+type T9 = { [param: string]: U };
+type T10 = { ... };
+type T11 = { a: { b: { c: {...}, ... }, ... } }
+type T12 = { foo: number, ... };
+type T13 = { foo: number, bar: string, ... };

packages/babel-generator/test/fixtures/flow/object-literal-types/output.js

@@ -1,30 +1,49 @@
 type U = {};
 type V = {};
-type T = { ...U
+type T1 = { ...U
 };
-type T = { ...U,
+type T2 = { ...U,
   ...V,
 };
-type T = {
+type T3 = {
   p: V,
   ...U,
 };
-type T = { ...U,
+type T4 = { ...U,
   p: V,
 };
-type T = { ...{} | {
+type T5 = { ...{} | {
     p: V
   }
 };
-type T = {
+type T6 = {
   foo(): number
 };
-type T = {
+type T7 = {
   foo: () => number
 };
-type T = {
+type T8 = {
   [string]: U
 };
-type T = {
+type T9 = {
   [param: string]: U
-};
+};
+type T10 = {...};
+type T11 = {
+  a: {
+    b: {
+      c: {...},
+      ...
+    },
+    ...
+  }
+};
+type T12 = {
+  foo: number,
+  ...
+};
+type T13 = {
+  foo: number,
+  bar: string,
+  ...
+};

packages/babel-generator/test/fixtures/flow/opaque-type-alias/input.js

@@ -1,7 +1,7 @@
 opaque type ID = string;
 opaque type Foo<T> = Bar<T>;
 opaque type Maybe<T> = _Maybe<T, *>;
-export opaque type Foo = number;
+export opaque type Foo2 = number;
 
 opaque type union =
  | {type: "A"}

packages/babel-generator/test/fixtures/flow/opaque-type-alias/output.js

@@ -1,10 +1,10 @@
 opaque type ID = string;
 opaque type Foo<T> = Bar<T>;
 opaque type Maybe<T> = _Maybe<T, *>;
-export opaque type Foo = number;
+export opaque type Foo2 = number;
 opaque type union = {
   type: "A"
 } | {
   type: "B"
 };
-opaque type overloads = (x: string) => number & (x: number) => string;
+opaque type overloads = ((x: string) => number) & ((x: number) => string);

packages/babel-generator/test/fixtures/flow/parantheses/input.js

@@ -0,0 +1,3 @@
+type A = (<T>(T) => $Foo<T>) & (<T>(T) => $Foo<T>);
+type B = (<T>(T) => $Foo<T>) | (<T>(T) => $Foo<T>);
+type C = (<T>(T) => $Foo<T>)[];

packages/babel-generator/test/fixtures/flow/parantheses/output.js

@@ -0,0 +1,3 @@
+type A = (<T>(T) => $Foo<T>) & (<T>(T) => $Foo<T>);
+type B = (<T>(T) => $Foo<T>) | (<T>(T) => $Foo<T>);
+type C = (<T>(T) => $Foo<T>)[];

packages/babel-generator/test/fixtures/flow/predicates/input.js

@@ -12,6 +12,6 @@ function is_string(x): boolean %checks {
 
 var f = (x: mixed): %checks => typeof x === "string";
 
-const foo = (x: mixed): boolean %checks => typeof x === "string";
+const foo2 = (x: mixed): boolean %checks => typeof x === "string";
 
 (x): %checks => x !== null;

packages/babel-generator/test/fixtures/flow/predicates/output.js

@@ -12,6 +12,6 @@ function is_string(x): boolean %checks {
 
 var f = (x: mixed): %checks => typeof x === "string";
 
-const foo = (x: mixed): boolean %checks => typeof x === "string";
+const foo2 = (x: mixed): boolean %checks => typeof x === "string";
 
 x: %checks => x !== null;

packages/babel-generator/test/fixtures/flow/string-literal-types/input.js

@@ -1,2 +1,2 @@
-function createElement(tagName: "div"): HTMLDivElement {}
-function createElement(tagName: 'div'): HTMLDivElement {}
+function createElement1(tagName: "div"): HTMLDivElement {}
+function createElement2(tagName: 'div'): HTMLDivElement {}

packages/babel-generator/test/fixtures/flow/string-literal-types/output.js

@@ -1,3 +1,3 @@
-function createElement(tagName: "div"): HTMLDivElement {}
+function createElement1(tagName: "div"): HTMLDivElement {}
 
-function createElement(tagName: 'div'): HTMLDivElement {}
+function createElement2(tagName: 'div'): HTMLDivElement {}

packages/babel-generator/test/fixtures/flow/type-alias/input.js

@@ -1,7 +1,7 @@
 type FBID = number;
 type Foo<T> = Bar<T>;
 type Maybe<T> = _Maybe<T, *>;
-export type Foo = number;
+export type Foo2 = number;
 
 type union =
  | {type: "A"}
@@ -14,3 +14,5 @@ type overloads =
 ;
 
 type func = string => string;
+
+type D = X.Y<Z>;

packages/babel-generator/test/fixtures/flow/type-alias/output.js

@@ -1,11 +1,12 @@
 type FBID = number;
 type Foo<T> = Bar<T>;
 type Maybe<T> = _Maybe<T, *>;
-export type Foo = number;
+export type Foo2 = number;
 type union = {
   type: "A"
 } | {
   type: "B"
 };
-type overloads = (x: string) => number & (x: number) => string;
+type overloads = ((x: string) => number) & ((x: number) => string);
 type func = (string) => string;
+type D = X.Y<Z>;

packages/babel-generator/test/fixtures/flow/type-annotations/input.js

@@ -1,130 +1,130 @@
-function foo(numVal: any) {}
-function foo(numVal: number) {}
-function foo(numVal: number, strVal: string) {}
-function foo(numVal: number, untypedVal) {}
-function foo(untypedVal, numVal: number) {}
-function foo(nullableNum: ?number) {}
-function foo(callback: () => void) {}
-function foo(callback: () => number) {}
-function foo(callback: (_: bool) => number) {}
-function foo(callback: (_1: bool, _2: string) => number) {}
-function foo(callback: (_1: bool, ...foo: Array<number>) => number) {}
-function foo(): number{}
-function foo():() => void {}
-function foo():(_:bool) => number{}
-function foo():(_?:bool) => number{}
-function foo(): {} {}
-function foo<T>() {}
-function foo<T,S>() {}
-function foo<T: F>() {}
-a = function<T,S>() {};
-a = { set fooProp(value: number) {} };
-a = { set fooProp(value: number): void {} };
-a = { get fooProp():number{} };
-a = { id<T>(x: T): T {} };
-a = { *id<T>(x: T): T {} };
-a = { async id<T>(x: T): T {} };
-a = { 123<T>(x: T): T {} };
-class Foo {
+function foo1(numVal: any) {}
+function foo2(numVal: number) {}
+function foo3(numVal: number, strVal: string) {}
+function foo4(numVal: number, untypedVal) {}
+function foo5(untypedVal, numVal: number) {}
+function foo6(nullableNum: ?number) {}
+function foo7(callback: () => void) {}
+function foo8(callback: () => number) {}
+function foo9(callback: (_: bool) => number) {}
+function foo10(callback: (_1: bool, _2: string) => number) {}
+function foo11(callback: (_1: bool, ...foo: Array<number>) => number) {}
+function foo12(): number{}
+function foo13():() => void {}
+function foo14():(_:bool) => number{}
+function foo15():(_?:bool) => number{}
+function foo16(): {} {}
+function foo17<T>() {}
+function foo18<T,S>() {}
+function foo19<T: F>() {}
+a1 = function<T,S>() {};
+a2 = { set fooProp(value: number) {} };
+a3 = { set fooProp(value: number): void {} };
+a4 = { get fooProp():number{} };
+a5 = { id<T>(x: T): T {} };
+a6 = { *id<T>(x: T): T {} };
+a7 = { async id<T>(x: T): T {} };
+a8 = { 123<T>(x: T): T {} };
+class Foo1 {
   set fooProp(value: number) {}
 }
-class Foo {
+class Foo2 {
   set fooProp(value: number): void {}
 }
-class Foo {
+class Foo3 {
   get fooProp(): number {}
 }
-var numVal: number;
-var numVal: empty;
-var numVal: mixed;
-var numVal: number = otherNumVal;
-var a: { numVal: number };
-var a: { numVal: number; };
-var a: { numVal: number; [indexer: string]: number };
-var a: ?{ numVal: number };
-var a: { numVal: number; strVal: string }
-var a: { subObj: {strVal: string} }
-var a: { subObj: ?{strVal: string} }
-var a: { param1: number; param2: string }
-var a: { param1: number; param2?: string }
-var a: { [a: number]: string; [b: number]: string; };
-var a: { add(x: number, ...y: Array<string>): void };
-var a: { subtract: (x: number, ...y: Array<string>) => void };
-var a: { id<T>(x: T): T; };
-var a:Array<number> = [1, 2, 3]
-a = class Foo<T> {}
-a = class Foo<T> extends Bar<T> {}
-class Foo<T> {}
-class Foo<T> extends Bar<T> {}
-class Foo<T> extends mixin(Bar) {}
-class Foo<T> {
+var numVal1: number;
+var numVal2: empty;
+var numVal3: mixed;
+var numVal4: number = otherNumVal;
+var a1: { numVal: number };
+var a2: { numVal: number; };
+var a3: { numVal: number; [indexer: string]: number };
+var a4: ?{ numVal: number };
+var a5: { numVal: number; strVal: string }
+var a6: { subObj: {strVal: string} }
+var a7: { subObj: ?{strVal: string} }
+var a8: { param1: number; param2: string }
+var a9: { param1: number; param2?: string }
+var a10: { [a: number]: string; [b: number]: string; };
+var a11: { add(x: number, ...y: Array<string>): void };
+var a12: { subtract: (x: number, ...y: Array<string>) => void };
+var a13: { id<T>(x: T): T; };
+var a14:Array<number> = [1, 2, 3]
+a13 = class Foo<T> {}
+a14 = class Foo<T> extends Bar<T> {}
+class Foo4<T> {}
+class Foo5<T> extends Bar<T> {}
+class Foo6<T> extends mixin(Bar) {}
+class Foo7<T> {
   bar<U>():number { return 42; }
 }
-class Foo {
+class Foo8 {
   "bar"<T>() {}
 }
-function foo(requiredParam, optParam?) {}
-class Foo {
+function foo20(requiredParam, optParam?) {}
+class Foo9 {
   prop1: string;
   prop2: number;
 }
-class Foo {
+class Foo10 {
   static prop1: string;
   prop2: number;
 }
-class Foo {
+class Foo11 {
   #prop1: string;
   prop2: number;
 }
-var x: number | string = 4;
+var x1: number | string = 4;
 class Array { concat(items:number | string) {}; }
-var x: () => number | () => string = fn;
-var x: typeof Y = Y;
-var x: typeof Y | number = Y;
-var {x}: {x: string; } = { x: "hello" };
-var {x}: {x: string } = { x: "hello" };
-var [x]: Array<string> = [ "hello" ];
-function foo({x}: { x: string; }) {}
-function foo([x]: Array<string>) {}
-function foo(...rest: Array<number>) {}
+var x2: () => number | () => string = fn;
+var x3: typeof Y = Y;
+var x4: typeof Y | number = Y;
+var {x5}: {x5: string; } = { x5: "hello" };
+var {x6}: {x6: string } = { x6: "hello" };
+var [x7]: Array<string> = [ "hello" ];
+function foo21({x}: { x: string; }) {}
+function foo22([x]: Array<string>) {}
+function foo23(...rest: Array<number>) {}
 (function (...rest: Array<number>) {});
 ((...rest: Array<number>) => rest);
-var a: Map<string, Array<string> >
-var a: Map<string, Array<string>>
-var a: number[]
-var a: ?string[]
-var a: Promise<bool>[]
-var a:(...rest:Array<number>) => number
-var identity: <T>(x: T) => T
-var identity: <T>(x: T, ...y:T[]) => T
-import type foo from "bar";
-import type { foo, bar } from "baz";
-import type { foo as bar } from "baz";
+var a15: Map<string, Array<string> >
+var a16: Map<string, Array<string>>
+var a17: number[]
+var a18: ?string[]
+var a19: Promise<bool>[]
+var a20:(...rest:Array<number>) => number
+var identity1: <T>(x: T) => T
+var identity2: <T>(x: T, ...y:T[]) => T
+import type foo24 from "bar";
+import type { foo25, bar1 } from "baz";
+import type { foo as bar2 } from "baz";
 import type from "foo";
-import type, { foo } from "bar";
+import type2, { foo26 } from "bar";
 import typeof * as namespace from "bar";
-import { type Foo } from "bar";
-import { typeof Foo } from "bar";
-import { type Foo as Bar } from "bar";
-import { typeof Foo as Bar } from "bar";
-export type { foo };
+import { type Foo12 } from "bar";
+import { typeof Foo13 } from "bar";
+import { type Foo as Bar1 } from "bar";
+import { typeof Foo as Bar2 } from "bar";
+export type { foo1 };
 export type { bar } from "bar";
 export interface baz { p: number }
 export interface qux<T> { p: T }
-var a: ?Array<?string>;
-var a: {| numVal: number |};
-var a: {| numVal: number; |};
-var a: {| numVal: number; [indexer: string]: number |};
-var a: ?{| numVal: number |};
-var a: {| numVal: number; strVal: string |}
-var a: {| subObj: {strVal: string} |}
-var a: {| subObj: ?{strVal: string} |}
-var a: {| param1: number; param2: string |}
-var a: {| param1: number; param2?: string |}
-var a: {| [a: number]: string; [b: number]: string; |};
-var a: {| add(x: number, ...y: Array<string>): void |};
-var a: {| subtract: (x: number, ...y: Array<string>) => void |};
-var a: {| id<T>(x: T): T; |};
-function foo(numVal: number = 2) {}
-function foo(numVal?: number = 2) {}
+var a21: ?Array<?string>;
+var a22: {| numVal: number |};
+var a23: {| numVal: number; |};
+var a24: {| numVal: number; [indexer: string]: number |};
+var a25: ?{| numVal: number |};
+var a26: {| numVal: number; strVal: string |}
+var a27: {| subObj: {strVal: string} |}
+var a28: {| subObj: ?{strVal: string} |}
+var a29: {| param1: number; param2: string |}
+var a30: {| param1: number; param2?: string |}
+var a31: {| [a: number]: string; [b: number]: string; |};
+var a32: {| add(x: number, ...y: Array<string>): void |};
+var a33: {| subtract: (x: number, ...y: Array<string>) => void |};
+var a34: {| id<T>(x: T): T; |};
+function foo27(numVal: number = 2) {}
+function foo28(numVal?: number = 2) {}
 export type * from "foo";

packages/babel-generator/test/fixtures/flow/type-annotations/output.js

@@ -1,237 +1,237 @@
-function foo(numVal: any) {}
+function foo1(numVal: any) {}
 
-function foo(numVal: number) {}
+function foo2(numVal: number) {}
 
-function foo(numVal: number, strVal: string) {}
+function foo3(numVal: number, strVal: string) {}
 
-function foo(numVal: number, untypedVal) {}
+function foo4(numVal: number, untypedVal) {}
 
-function foo(untypedVal, numVal: number) {}
+function foo5(untypedVal, numVal: number) {}
 
-function foo(nullableNum: ?number) {}
+function foo6(nullableNum: ?number) {}
 
-function foo(callback: () => void) {}
+function foo7(callback: () => void) {}
 
-function foo(callback: () => number) {}
+function foo8(callback: () => number) {}
 
-function foo(callback: (_: boolean) => number) {}
+function foo9(callback: (_: boolean) => number) {}
 
-function foo(callback: (_1: boolean, _2: string) => number) {}
+function foo10(callback: (_1: boolean, _2: string) => number) {}
 
-function foo(callback: (_1: boolean, ...foo: Array<number>) => number) {}
+function foo11(callback: (_1: boolean, ...foo: Array<number>) => number) {}
 
-function foo(): number {}
+function foo12(): number {}
 
-function foo(): () => void {}
+function foo13(): () => void {}
 
-function foo(): (_: boolean) => number {}
+function foo14(): (_: boolean) => number {}
 
-function foo(): (_?: boolean) => number {}
+function foo15(): (_?: boolean) => number {}
 
-function foo(): {} {}
+function foo16(): {} {}
 
-function foo<T>() {}
+function foo17<T>() {}
 
-function foo<T, S>() {}
+function foo18<T, S>() {}
 
-function foo<T: F>() {}
+function foo19<T: F>() {}
 
-a = function <T, S>() {};
+a1 = function <T, S>() {};
 
-a = {
+a2 = {
   set fooProp(value: number) {}
 
 };
-a = {
+a3 = {
   set fooProp(value: number): void {}
 
 };
-a = {
+a4 = {
   get fooProp(): number {}
 
 };
-a = {
+a5 = {
   id<T>(x: T): T {}
 
 };
-a = {
+a6 = {
   *id<T>(x: T): T {}
 
 };
-a = {
+a7 = {
   async id<T>(x: T): T {}
 
 };
-a = {
+a8 = {
   123<T>(x: T): T {}
 
 };
 
-class Foo {
+class Foo1 {
   set fooProp(value: number) {}
 
 }
 
-class Foo {
+class Foo2 {
   set fooProp(value: number): void {}
 
 }
 
-class Foo {
+class Foo3 {
   get fooProp(): number {}
 
 }
 
-var numVal: number;
-var numVal: empty;
-var numVal: mixed;
-var numVal: number = otherNumVal;
-var a: {
+var numVal1: number;
+var numVal2: empty;
+var numVal3: mixed;
+var numVal4: number = otherNumVal;
+var a1: {
   numVal: number
 };
-var a: {
+var a2: {
   numVal: number
 };
-var a: {
+var a3: {
   numVal: number,
   [indexer: string]: number,
 };
-var a: ?{
+var a4: ?{
   numVal: number
 };
-var a: {
+var a5: {
   numVal: number,
   strVal: string,
 };
-var a: {
+var a6: {
   subObj: {
     strVal: string
   }
 };
-var a: {
+var a7: {
   subObj: ?{
     strVal: string
   }
 };
-var a: {
+var a8: {
   param1: number,
   param2: string,
 };
-var a: {
+var a9: {
   param1: number,
   param2?: string,
 };
-var a: {
+var a10: {
   [a: number]: string,
   [b: number]: string,
 };
-var a: {
+var a11: {
   add(x: number, ...y: Array<string>): void
 };
-var a: {
+var a12: {
   subtract: (x: number, ...y: Array<string>) => void
 };
-var a: {
+var a13: {
   id<T>(x: T): T
 };
-var a: Array<number> = [1, 2, 3];
-a = class Foo<T> {};
-a = class Foo<T> extends Bar<T> {};
+var a14: Array<number> = [1, 2, 3];
+a13 = class Foo<T> {};
+a14 = class Foo<T> extends Bar<T> {};
 
-class Foo<T> {}
+class Foo4<T> {}
 
-class Foo<T> extends Bar<T> {}
+class Foo5<T> extends Bar<T> {}
 
-class Foo<T> extends mixin(Bar) {}
+class Foo6<T> extends mixin(Bar) {}
 
-class Foo<T> {
+class Foo7<T> {
   bar<U>(): number {
     return 42;
   }
 
 }
 
-class Foo {
+class Foo8 {
   "bar"<T>() {}
 
 }
 
-function foo(requiredParam, optParam?) {}
+function foo20(requiredParam, optParam?) {}
 
-class Foo {
+class Foo9 {
   prop1: string;
   prop2: number;
 }
 
-class Foo {
+class Foo10 {
   static prop1: string;
   prop2: number;
 }
 
-class Foo {
+class Foo11 {
   #prop1: string;
   prop2: number;
 }
 
-var x: number | string = 4;
+var x1: number | string = 4;
 
 class Array {
   concat(items: number | string) {}
 
 }
 
-var x: () => number | () => string = fn;
-var x: typeof Y = Y;
-var x: typeof Y | number = Y;
+var x2: () => number | (() => string) = fn;
+var x3: typeof Y = Y;
+var x4: typeof Y | number = Y;
 var {
-  x
+  x5
 }: {
-  x: string
+  x5: string
 } = {
-  x: "hello"
+  x5: "hello"
 };
 var {
-  x
+  x6
 }: {
-  x: string
+  x6: string
 } = {
-  x: "hello"
+  x6: "hello"
 };
-var [x]: Array<string> = ["hello"];
+var [x7]: Array<string> = ["hello"];
 
-function foo({
+function foo21({
   x
 }: {
   x: string
 }) {}
 
-function foo([x]: Array<string>) {}
+function foo22([x]: Array<string>) {}
 
-function foo(...rest: Array<number>) {}
+function foo23(...rest: Array<number>) {}
 
 (function (...rest: Array<number>) {});
 
 (...rest: Array<number>) => rest;
 
-var a: Map<string, Array<string>>;
-var a: Map<string, Array<string>>;
-var a: number[];
-var a: ?string[];
-var a: Promise<boolean>[];
-var a: (...rest: Array<number>) => number;
-var identity: <T>(x: T) => T;
-var identity: <T>(x: T, ...y: T[]) => T;
-import type foo from "bar";
-import type { foo, bar } from "baz";
-import type { foo as bar } from "baz";
+var a15: Map<string, Array<string>>;
+var a16: Map<string, Array<string>>;
+var a17: number[];
+var a18: ?string[];
+var a19: Promise<boolean>[];
+var a20: (...rest: Array<number>) => number;
+var identity1: <T>(x: T) => T;
+var identity2: <T>(x: T, ...y: T[]) => T;
+import type foo24 from "bar";
+import type { foo25, bar1 } from "baz";
+import type { foo as bar2 } from "baz";
 import type from "foo";
-import type, { foo } from "bar";
+import type2, { foo26 } from "bar";
 import typeof * as namespace from "bar";
-import { type Foo } from "bar";
-import { typeof Foo } from "bar";
-import { type Foo as Bar } from "bar";
-import { typeof Foo as Bar } from "bar";
-export type { foo };
+import { type Foo12 } from "bar";
+import { typeof Foo13 } from "bar";
+import { type Foo as Bar1 } from "bar";
+import { typeof Foo as Bar2 } from "bar";
+export type { foo1 };
 export type { bar } from "bar";
 export interface baz {
   p: number
@@ -239,58 +239,58 @@ export interface baz {
 export interface qux<T> {
   p: T
 }
-var a: ?Array<?string>;
-var a: {|
+var a21: ?Array<?string>;
+var a22: {|
   numVal: number
 |};
-var a: {|
+var a23: {|
   numVal: number
 |};
-var a: {|
+var a24: {|
   numVal: number,
   [indexer: string]: number,
 |};
-var a: ?{|
+var a25: ?{|
   numVal: number
 |};
-var a: {|
+var a26: {|
   numVal: number,
   strVal: string,
 |};
-var a: {|
+var a27: {|
   subObj: {
     strVal: string
   }
 |};
-var a: {|
+var a28: {|
   subObj: ?{
     strVal: string
   }
 |};
-var a: {|
+var a29: {|
   param1: number,
   param2: string,
 |};
-var a: {|
+var a30: {|
   param1: number,
   param2?: string,
 |};
-var a: {|
+var a31: {|
   [a: number]: string,
   [b: number]: string,
 |};
-var a: {|
+var a32: {|
   add(x: number, ...y: Array<string>): void
 |};
-var a: {|
+var a33: {|
   subtract: (x: number, ...y: Array<string>) => void
 |};
-var a: {|
+var a34: {|
   id<T>(x: T): T
 |};
 
-function foo(numVal: number = 2) {}
+function foo27(numVal: number = 2) {}
 
-function foo(numVal?: number = 2) {}
+function foo28(numVal?: number = 2) {}
 
 export type * from "foo";

packages/babel-generator/test/fixtures/flow/type-parameters/input.js

@@ -1,21 +1,21 @@
-type A<T = string> = T;
-type A<T = *> = T;
-type A<T: ?string = string> = T;
-type A<S, T: ?string = string> = T;
-type A<S = number, T: ?string = string> = T;
-class A<T = string> {}
-class A<T: ?string = string> {}
-class A<S, T: ?string = string> {}
-class A<S = number, T: ?string = string> {}
-(class A<T = string> {});
-(class A<T: ?string = string> {});
-(class A<S, T: ?string = string> {});
-(class A<S = number, T: ?string = string> {});
-declare class A<T = string> {}
-declare class A<T: ?string = string> {}
-declare class A<S, T: ?string = string> {}
-declare class A<S = number, T: ?string = string> {}
-interface A<T = string> {}
-interface A<T: ?string = string> {}
-interface A<S, T: ?string = string> {}
-interface A<S = number, T: ?string = string> {}
+type A1<T = string> = T;
+type A2<T = *> = T;
+type A3<T: ?string = string> = T;
+type A4<S, T: ?string = string> = T;
+type A5<S = number, T: ?string = string> = T;
+class A6<T = string> {}
+class A7<T: ?string = string> {}
+class A8<S, T: ?string = string> {}
+class A9<S = number, T: ?string = string> {}
+(class A10<T = string> {});
+(class A11<T: ?string = string> {});
+(class A12<S, T: ?string = string> {});
+(class A13<S = number, T: ?string = string> {});
+declare class A14<T = string> {}
+declare class A15<T: ?string = string> {}
+declare class A16<S, T: ?string = string> {}
+declare class A17<S = number, T: ?string = string> {}
+interface A18<T = string> {}
+interface A19<T: ?string = string> {}
+interface A20<S, T: ?string = string> {}
+interface A21<S = number, T: ?string = string> {}

packages/babel-generator/test/fixtures/flow/type-parameters/output.js

@@ -1,30 +1,30 @@
-type A<T = string> = T;
-type A<T = *> = T;
-type A<T: ?string = string> = T;
-type A<S, T: ?string = string> = T;
-type A<S = number, T: ?string = string> = T;
+type A1<T = string> = T;
+type A2<T = *> = T;
+type A3<T: ?string = string> = T;
+type A4<S, T: ?string = string> = T;
+type A5<S = number, T: ?string = string> = T;
 
-class A<T = string> {}
+class A6<T = string> {}
 
-class A<T: ?string = string> {}
+class A7<T: ?string = string> {}
 
-class A<S, T: ?string = string> {}
+class A8<S, T: ?string = string> {}
 
-class A<S = number, T: ?string = string> {}
+class A9<S = number, T: ?string = string> {}
 
-(class A<T = string> {});
+(class A10<T = string> {});
 
-(class A<T: ?string = string> {});
+(class A11<T: ?string = string> {});
 
-(class A<S, T: ?string = string> {});
+(class A12<S, T: ?string = string> {});
 
-(class A<S = number, T: ?string = string> {});
+(class A13<S = number, T: ?string = string> {});
 
-declare class A<T = string> {}
-declare class A<T: ?string = string> {}
-declare class A<S, T: ?string = string> {}
-declare class A<S = number, T: ?string = string> {}
-interface A<T = string> {}
-interface A<T: ?string = string> {}
-interface A<S, T: ?string = string> {}
-interface A<S = number, T: ?string = string> {}
+declare class A14<T = string> {}
+declare class A15<T: ?string = string> {}
+declare class A16<S, T: ?string = string> {}
+declare class A17<S = number, T: ?string = string> {}
+interface A18<T = string> {}
+interface A19<T: ?string = string> {}
+interface A20<S, T: ?string = string> {}
+interface A21<S = number, T: ?string = string> {}

packages/babel-generator/test/fixtures/harmony-edgecase/destructuring-assignment/input.js

@@ -4,15 +4,15 @@ function t2({responseText}) {
 }
 function t3([a, b]) {
 }
-var [i, j, k] = array;
+var [i1, j1, k1] = array;
 var {
-  i,
-  j,
-  k
+  i2,
+  j2,
+  k2
 } = obj;
-let {i, j, k} = obj;
-const {i, j, k} = obj;
-var { value } = obj;
+let {i3, j3, k3} = obj;
+const {i4, j4, k4} = obj;
+var { value1 } = obj;
 var {
-  value
+  value2
 } = obj;

packages/babel-generator/test/fixtures/harmony-edgecase/destructuring-assignment/output.js

@@ -8,25 +8,25 @@ function t2({
 
 function t3([a, b]) {}
 
-var [i, j, k] = array;
+var [i1, j1, k1] = array;
 var {
-  i,
-  j,
-  k
+  i2,
+  j2,
+  k2
 } = obj;
 let {
-  i,
-  j,
-  k
+  i3,
+  j3,
+  k3
 } = obj;
 const {
-  i,
-  j,
-  k
+  i4,
+  j4,
+  k4
 } = obj;
 var {
-  value
+  value1
 } = obj;
 var {
-  value
+  value2
 } = obj;