v7.0.0-beta.55

Remove our own use of stage presets (#8397 )
- also update the stage preset error message/readme's to point to the new blog post
2018-07-28 18:06:42 -04:00 · 2018-07-28 11:24:53 -04:00 · 2018-07-27 16:27:33 -04:00 · 2018-07-27 16:24:57 -04:00 · 2018-07-26 15:22:26 -04:00 · 2018-07-26 10:44:43 -05:00
257 changed files with 3119 additions and 1980 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,68 @@ See [CHANGELOG - v4-v6](/.github/CHANGELOG-v4-v6.md) for the v4.x-v6.x changelog
 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.

+## v7.0.0-beta.54 (2018-07-16)
+
+> Regarding https://github.com/babel/babel/issues/8184, we aren't using `micromatch` for paths, just basic `*/**` substitution now. For anything more complicated we will recommend using a regex/`.js` config.
+> Fixed a bug in the stage presets (https://github.com/babel/babel/issues/8307), so we just removed the requirements for setting options in the meantime for ease of use. We are removing the Stage presets next release. https://github.com/babel/babel/pull/8293
+
+#### :boom: Breaking Change
+* `babel-core`, `babel-register`, `babel-traverse`
+  * [#8327](https://github.com/babel/babel/pull/8327) Treat string ignore/only/test/include/exclude values as paths with only basic pattern matching. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :bug: Bug Fix
+* `babel-core`, `babel-register`, `babel-traverse`
+  * [#8327](https://github.com/babel/babel/pull/8327) Treat string ignore/only/test/include/exclude values as paths with only basic pattern matching. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-preset-stage-0`, `babel-preset-stage-1`
+  * [#8317](https://github.com/babel/babel/pull/8317) Fix stage-0/1 import of pipeline proposals array. ([@mAAdhaTTah](https://github.com/mAAdhaTTah))
+* `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
+  * [#8316](https://github.com/babel/babel/pull/8316) Ensure that the wildcard interop is used with re-export + default.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-core`
+  * [#8315](https://github.com/babel/babel/pull/8315) Remove option-filtering options from the final options results.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :memo: Documentation
+* [#8320](https://github.com/babel/babel/pull/8320) Add link to audio version of song. ([@rugk](https://github.com/rugk))
+
+## 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) 
+
+#### :boom: Breaking Change
+* `babel-*`
+  * [#8274](https://github.com/babel/babel/pull/8274) Remove yearly presets from repo. ([@hzoo](https://github.com/hzoo))
+
+#### :rocket: New Feature
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#7799](https://github.com/babel/babel/pull/7799) TypeScript: Support type arguments on JSX opening and self-closing tags. ([@andy-ms](https://github.com/andy-ms))
+* `babel-parser`
+  * [#8291](https://github.com/babel/babel/pull/8291) Support pipeline proposal flag in  `@babel/parser`. ([@mAAdhaTTah](https://github.com/mAAdhaTTah))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#8264](https://github.com/babel/babel/pull/8264) Remove unused bindings when excluding keys with rest in loose mode. ([@Andarist](https://github.com/Andarist))
+* `babel-helpers`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-destructuring`, `babel-preset-env`
+  * [#8261](https://github.com/babel/babel/pull/8261) Introduce objectWithoutPropertiesLoose helper. ([@Andarist](https://github.com/Andarist))
+
+#### :bug: Bug Fix
+* `babel-core`
+  * [#8281](https://github.com/babel/babel/pull/8281) Revert micromatch upgrade (regression) [skip ci]. ([@hzoo](https://github.com/hzoo))
+* `babel-types`
+  * [#8165](https://github.com/babel/babel/pull/8165) [babel-types] Fix isNodesEquivalent() behavior for TemplateElements. ([@timkendrick](https://github.com/timkendrick))
+
+#### :nail_care: Polish
+* `babel-plugin-syntax-pipeline-operator`, `babel-preset-stage-0`, `babel-preset-stage-1`
+  * [#8279](https://github.com/babel/babel/pull/8279) Improve error messages around pipeline option. ([@mAAdhaTTah](https://github.com/mAAdhaTTah))
+
+#### :memo: Documentation
+* [#8286](https://github.com/babel/babel/pull/8286) Move v4-v6 changelog to another file and all prerelease 7.0 logs [ski…. ([@hzoo](https://github.com/hzoo))
+
+#### :house: Internal
+* `babel-preset-env`
+  * [#8299](https://github.com/babel/babel/pull/8299) Make env preset build-data scripts reproducible. ([@rtsao](https://github.com/rtsao))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#8287](https://github.com/babel/babel/pull/8287) Fixed fixture tests after merge. ([@Andarist](https://github.com/Andarist))
+* Other
+  * [#8187](https://github.com/babel/babel/pull/8187) Invoke Jest main file directly. ([@ishitatsuyuki](https://github.com/ishitatsuyuki))
+
 ## v7.0.0-beta.52 (2018-07-06)

 Deprecating the yearly/stage presets in v7 (will remove next beta). Ran `npm deprecate` on `@babel/preset-es2015`, `@babel/preset-es2016`, `@babel/preset-es2017`, `@babel/preset-stage-0`, `@babel/preset-stage-1`, `@babel/preset-stage-2`, `@babel/preset-stage-3` only for versions `>v7.0.0-beta.52`. This means this will only break your build if you are using `^` in Babel v7 beta (which we have recommended against each release). (It is unfortunate that the default behavior of npm is to use `^` when using `npm install` though; haven't made an RFC for it yet).
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -230,7 +230,7 @@ If the test requires a minimum Node version, you can add `minNodeVersion` (must

 Writing tests for the babel parser is very
 similar to the other packages.
-Inside the `packages/babel-parser/tests/fixtures` folder are categories/groupings of test fixtures (es2015, flow,
+Inside the `packages/babel-parser/test/fixtures` folder are categories/groupings of test fixtures (es2015, flow,
 etc.). To add a test, create a folder under one of these groupings (or create a new one) with a
 descriptive name, and add the following:

--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ For questions and support please visit join our [Slack Community](https://slack.

 ### Is there a Babel song?

-I'm so glad you asked: [Hallelujah —— In Praise of Babel](SONG.md) by [@angus-c](https://github.com/angus-c). Tweet us your recordings!
+I'm so glad you asked: [Hallelujah —— In Praise of Babel](SONG.md) by [@angus-c](https://github.com/angus-c), [audio version](https://youtu.be/40abpedBKK8) by [@swyx](https://twitter.com/@swyx). Tweet us your recordings!

 ### Where are the docs?

--- a/SONG.md
+++ b/SONG.md
@@ -1,5 +1,7 @@
 ## Hallelujah—In Praise of Babel

+➤ [🎶 Audio version here!](https://youtu.be/40abpedBKK8)
+
 I heard there was a clever trick  
 That rewrote all your JavaScript  
 But you don’t really care for magic, do you  
--- a/codemods/babel-plugin-codemod-object-assign-to-object-spread/package.json
+++ b/codemods/babel-plugin-codemod-object-assign-to-object-spread/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/plugin-codemod-object-assign-to-object-spread",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Transforms Object.assign into object spread syntax",
  "repository": "https://github.com/babel/babel/tree/master/codemods/babel-plugin-codemod-object-assign-to-object-spread",
  "license": "MIT",
@@ -10,14 +10,14 @@
    "@babel/plugin"
  ],
  "dependencies": {
-    "@babel/plugin-syntax-object-rest-spread": "7.0.0-beta.53"
+    "@babel/plugin-syntax-object-rest-spread": "7.0.0-beta.55"
  },
  "peerDependencies": {
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  },
  "publishConfig": {
    "access": "public"
--- a/codemods/babel-plugin-codemod-optional-catch-binding/package.json
+++ b/codemods/babel-plugin-codemod-optional-catch-binding/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/plugin-codemod-optional-catch-binding",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Remove unused catch bindings",
  "repository": "https://github.com/babel/babel/tree/master/codemods/babel-plugin-codemod-remove-unused-catch-binding",
  "license": "MIT",
@@ -10,13 +10,13 @@
    "@babel/plugin"
  ],
  "dependencies": {
-    "@babel/plugin-syntax-optional-catch-binding": "7.0.0-beta.53"
+    "@babel/plugin-syntax-optional-catch-binding": "7.0.0-beta.55"
  },
  "peerDependencies": {
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  }
 }
--- a/lerna.json
+++ b/lerna.json
@@ -1,6 +1,6 @@
 {
  "lerna": "2.11.0",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "changelog": {
    "repo": "babel/babel",
    "cacheDir": ".changelog",
--- a/package.json
+++ b/package.json
@@ -12,14 +12,16 @@
  "devDependencies": {
    "@babel/cli": "7.0.0-beta.52",
    "@babel/core": "7.0.0-beta.52",
+    "@babel/plugin-proposal-class-properties": "7.0.0-beta.52",
+    "@babel/plugin-proposal-export-namespace-from": "7.0.0-beta.52",
+    "@babel/plugin-proposal-numeric-separator": "7.0.0-beta.52",
    "@babel/plugin-transform-modules-commonjs": "7.0.0-beta.52",
    "@babel/preset-env": "7.0.0-beta.52",
    "@babel/preset-flow": "7.0.0-beta.52",
-    "@babel/preset-stage-0": "7.0.0-beta.52",
    "@babel/register": "7.0.0-beta.52",
    "babel-core": "^7.0.0-0",
-    "babel-eslint": "^8.2.5",
-    "babel-jest": "^22.4.1",
+    "babel-eslint": "^8.2.6",
+    "babel-jest": "^23.4.0",
    "babel-loader": "8.0.0-beta.0",
    "babel-plugin-transform-charcodes": "^0.1.0",
    "browserify": "^13.1.1",
@@ -28,11 +30,11 @@
    "charcodes": "^0.1.0",
    "derequire": "^2.0.2",
    "enhanced-resolve": "^3.0.0",
-    "eslint": "^5.0.1",
+    "eslint": "^5.1.0",
    "eslint-config-babel": "^7.0.2",
-    "eslint-plugin-flowtype": "^2.49.3",
-    "eslint-plugin-prettier": "^2.6.1",
-    "flow-bin": "^0.75.0",
+    "eslint-plugin-flowtype": "^2.50.0",
+    "eslint-plugin-prettier": "^2.6.2",
+    "flow-bin": "^0.76.0",
    "graceful-fs": "^4.1.11",
    "gulp": "^4.0.0",
    "gulp-babel": "^8.0.0-beta.2",
@@ -44,14 +46,14 @@
    "gulp-util": "^3.0.7",
    "gulp-watch": "^5.0.0",
    "husky": "^0.14.3",
-    "jest": "^22.4.2",
+    "jest": "^23.4.1",
    "lerna": "^2.11.0",
    "lerna-changelog": "^0.5.0",
    "lint-staged": "^6.0.1",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "merge-stream": "^1.0.1",
    "output-file-sync": "^2.0.0",
-    "prettier": "1.13.2",
+    "prettier": "^1.13.7",
    "pump": "^1.0.2",
    "rimraf": "^2.4.3",
    "rollup-plugin-babel": "^4.0.0-beta.0",
--- a/packages/babel-cli/package.json
+++ b/packages/babel-cli/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/cli",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel command line.",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -20,7 +20,7 @@
    "convert-source-map": "^1.1.0",
    "fs-readdir-recursive": "^1.0.0",
    "glob": "^7.0.0",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "mkdirp": "^0.5.1",
    "output-file-sync": "^2.0.0",
    "slash": "^1.0.0",
@@ -33,8 +33,8 @@
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-fixtures": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-fixtures": "7.0.0-beta.55"
  },
  "bin": {
    "babel": "./bin/babel.js",
--- a/packages/babel-cli/test/fixtures/babel/dir
+++ b/packages/babel-cli/test/fixtures/babel/dir
@@ -3,4 +3,4 @@
 arr.map(function (x) {
  return x * MULTIPLIER;
 });
-//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4uL3NyYy9mb28uanMiXSwibmFtZXMiOlsiYXJyIiwibWFwIiwieCIsIk1VTFRJUExJRVIiXSwibWFwcGluZ3MiOiI7O0FBQUFBLElBQUlDLEdBQUosQ0FBUTtBQUFBLFNBQUtDLElBQUlDLFVBQVQ7QUFBQSxDQUFSIiwic291cmNlc0NvbnRlbnQiOlsiYXJyLm1hcCh4ID0+IHggKiBNVUxUSVBMSUVSKTsiXX0=
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIi4uL3NyYy9mb28uanMiXSwibmFtZXMiOlsiYXJyIiwibWFwIiwieCIsIk1VTFRJUExJRVIiXSwibWFwcGluZ3MiOiI7O0FBQUFBLEdBQUcsQ0FBQ0MsR0FBSixDQUFRLFVBQUFDLENBQUM7QUFBQSxTQUFJQSxDQUFDLEdBQUdDLFVBQVI7QUFBQSxDQUFUIiwic291cmNlc0NvbnRlbnQiOlsiYXJyLm1hcCh4ID0+IHggKiBNVUxUSVBMSUVSKTsiXX0=
--- a/packages/babel-cli/test/fixtures/babel/dir
+++ b/packages/babel-cli/test/fixtures/babel/dir
@@ -1 +1 @@
-{"version":3,"sources":["../src/foo.js"],"names":["arr","map","x","MULTIPLIER"],"mappings":";;AAAAA,IAAIC,GAAJ,CAAQ;AAAA,SAAKC,IAAIC,UAAT;AAAA,CAAR","sourcesContent":["arr.map(x => x * MULTIPLIER);"],"file":"foo.js"}
+{"version":3,"sources":["../src/foo.js"],"names":["arr","map","x","MULTIPLIER"],"mappings":";;AAAAA,GAAG,CAACC,GAAJ,CAAQ,UAAAC,CAAC;AAAA,SAAIA,CAAC,GAAGC,UAAR;AAAA,CAAT","sourcesContent":["arr.map(x => x * MULTIPLIER);"],"file":"foo.js"}
--- a/packages/babel-cli/test/fixtures/babel/filename
+++ b/packages/babel-cli/test/fixtures/babel/filename
@@ -4,4 +4,4 @@ arr.map(function (x) {
  return x * MULTIPLIER;
 });

-//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNjcmlwdC5qcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOztBQUFBLElBQUksR0FBSixDQUFRO0FBQUEsU0FBSyxJQUFJLFVBQVQ7QUFBQSxDQUFSIiwiZmlsZSI6InNjcmlwdDIuanMiLCJzb3VyY2VzQ29udGVudCI6WyJhcnIubWFwKHggPT4geCAqIE1VTFRJUExJRVIpOyJdfQ==
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--- a/packages/babel-cli/test/fixtures/babel/filename-sourcemap
+++ b/packages/babel-cli/test/fixtures/babel/filename-sourcemap
@@ -4,4 +4,4 @@ arr.map(function (x) {
  return x * MULTIPLIER;
 });

-//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIm9yaWdpbmFsLmpzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiI7O0FBQUEsSUFBQSxHQUFBLENBQUE7QUFBQSxTQUFVLElBQUEsVUFBVjtBQUFBLENBQUEiLCJmaWxlIjoic2NyaXB0Mi5qcyIsInNvdXJjZXNDb250ZW50IjpbInZhciBmb28gPSAoKSA9PiA0OyJdfQ==
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--- a/packages/babel-cli/test/fixtures/babel/filenames
+++ b/packages/babel-cli/test/fixtures/babel/filenames
@@ -9,4 +9,4 @@ arr.map(function (x) {
  return x * MULTIPLIER;
 });

-//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNjcmlwdC5qcyIsInNjcmlwdDIuanMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6Ijs7QUFBQSxDQUFDO0FBQUEsU0FBTSxFQUFOO0FBQUEsQ0FBRDs7O0FDQUEsSUFBSSxHQUFKLENBQVE7QUFBQSxTQUFLLElBQUksVUFBVDtBQUFBLENBQVIiLCJmaWxlIjoic2NyaXB0My5qcyIsInNvdXJjZXNDb250ZW50IjpbIigoKSA9PiA0MikiLCJhcnIubWFwKHggPT4geCAqIE1VTFRJUExJRVIpOyJdfQ==
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--- a/packages/babel-cli/test/fixtures/babel/filenames
+++ b/packages/babel-cli/test/fixtures/babel/filenames
@@ -1 +1 @@
-{"version":3,"sources":["script.js","script2.js"],"names":[],"mappings":";;AAAA,CAAC;AAAA,SAAM,EAAN;AAAA,CAAD;;;ACAA,IAAI,GAAJ,CAAQ;AAAA,SAAK,IAAI,UAAT;AAAA,CAAR","file":"script3.js","sourcesContent":["(() => 42)","arr.map(x => x * MULTIPLIER);"]}
+{"version":3,"sources":["script.js","script2.js"],"names":[],"mappings":";;AAAA,CAAC;AAAA,SAAM,EAAN;AAAA,CAAD;;;ACAA,GAAG,CAAC,GAAJ,CAAQ,UAAA,CAAC;AAAA,SAAI,CAAC,GAAG,UAAR;AAAA,CAAT","file":"script3.js","sourcesContent":["(() => 42)","arr.map(x => x * MULTIPLIER);"]}
--- a/packages/babel-code-frame/package.json
+++ b/packages/babel-code-frame/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/code-frame",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Generate errors that contain a code frame that point to source locations.",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,7 +8,7 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-code-frame",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/highlight": "7.0.0-beta.53"
+    "@babel/highlight": "7.0.0-beta.55"
  },
  "devDependencies": {
    "chalk": "^2.0.0",
--- a/packages/babel-core/package.json
+++ b/packages/babel-core/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/core",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel compiler core.",
  "main": "lib/index.js",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
@@ -30,24 +30,23 @@
    "./lib/transform-file.js": "./lib/transform-file-browser.js"
  },
  "dependencies": {
-    "@babel/code-frame": "7.0.0-beta.53",
-    "@babel/generator": "7.0.0-beta.53",
-    "@babel/helpers": "7.0.0-beta.53",
-    "@babel/parser": "7.0.0-beta.53",
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53",
+    "@babel/code-frame": "7.0.0-beta.55",
+    "@babel/generator": "7.0.0-beta.55",
+    "@babel/helpers": "7.0.0-beta.55",
+    "@babel/parser": "7.0.0-beta.55",
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55",
    "convert-source-map": "^1.1.0",
    "debug": "^3.1.0",
    "json5": "^0.5.0",
-    "lodash": "^4.17.5",
-    "micromatch": "^2.3.11",
+    "lodash": "^4.17.10",
    "resolve": "^1.3.2",
    "semver": "^5.4.1",
    "source-map": "^0.5.0"
  },
  "devDependencies": {
-    "@babel/helper-transform-fixture-test-runner": "7.0.0-beta.53",
-    "@babel/register": "7.0.0-beta.53"
+    "@babel/helper-transform-fixture-test-runner": "7.0.0-beta.55",
+    "@babel/register": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-core/src/config/config-chain.js
+++ b/packages/babel-core/src/config/config-chain.js
@@ -1,7 +1,6 @@
 // @flow

 import path from "path";
-import micromatch from "micromatch";
 import buildDebug from "debug";
 import {
  validate,
@@ -10,6 +9,7 @@ import {
  type ConfigApplicableTest,
  type BabelrcSearch,
 } from "./validation/options";
+import pathPatternToRegex from "./pattern-to-regex";

 const debug = buildDebug("babel:config:config-chain");

@@ -52,11 +52,6 @@ export type ConfigContext = {
  envName: string,
 };

-type ConfigContextNamed = {
-  ...ConfigContext,
-  filename: string,
-};
-
 /**
 * Build a config chain for a given preset.
 */
@@ -217,7 +212,7 @@ function babelrcLoadEnabled(

  const absoluteRoot = context.root;

-  // Fast path to avoid having to load micromatch if the babelrc is just
+  // Fast path to avoid having to match patterns if the babelrc is just
  // loading in the standard root directory.
  if (babelrcRoots === undefined) {
    return pkgData.directories.indexOf(absoluteRoot) !== -1;
@@ -225,15 +220,23 @@ function babelrcLoadEnabled(

  let babelrcPatterns = babelrcRoots;
  if (!Array.isArray(babelrcPatterns)) babelrcPatterns = [babelrcPatterns];
-  babelrcPatterns = babelrcPatterns.map(pat => path.resolve(context.cwd, pat));
+  babelrcPatterns = babelrcPatterns.map(pat => {
+    return typeof pat === "string" ? path.resolve(context.cwd, pat) : pat;
+  });

-  // Fast path to avoid having to load micromatch if the babelrc is just
+  // Fast path to avoid having to match patterns if the babelrc is just
  // loading in the standard root directory.
  if (babelrcPatterns.length === 1 && babelrcPatterns[0] === absoluteRoot) {
    return pkgData.directories.indexOf(absoluteRoot) !== -1;
  }

-  return micromatch(pkgData.directories, babelrcPatterns).length > 0;
+  return babelrcPatterns.some(pat => {
+    if (typeof pat === "string") pat = pathPatternToRegex(pat, context.cwd);
+
+    return pkgData.directories.some(directory => {
+      return matchPattern(pat, context.cwd, directory);
+    });
+  });
 }

 const validateConfigFile = makeWeakCache(
@@ -500,11 +503,15 @@ function normalizeOptions(opts: ValidatedOptions): ValidatedOptions {
  };
  delete options.extends;
  delete options.env;
+  delete options.overrides;
  delete options.plugins;
  delete options.presets;
  delete options.passPerPreset;
  delete options.ignore;
  delete options.only;
+  delete options.test;
+  delete options.include;
+  delete options.exclude;

  // "sourceMap" is just aliased to sourceMap, so copy it over as
  // we merge the options together.
@@ -579,20 +586,9 @@ function configFieldIsApplicable(
  test: ConfigApplicableTest,
  dirname: string,
 ): boolean {
-  if (typeof context.filename !== "string") {
-    throw new Error(
-      `Configuration contains explicit test/include/exclude checks, but no filename was passed to Babel`,
-    );
-  }
-  // $FlowIgnore - Flow refinements aren't quite smart enough for this :(
-  const ctx: ConfigContextNamed = context;
-
  const patterns = Array.isArray(test) ? test : [test];

-  // Disabling negation here because it's a bit buggy from
-  // https://github.com/babel/babel/issues/6907 and it's not clear that it is
-  // needed since users can use 'exclude' alongside 'test'/'include'.
-  return matchesPatterns(ctx, patterns, dirname, false /* allowNegation */);
+  return matchesPatterns(context, patterns, dirname);
 }

 /**
@@ -604,43 +600,24 @@ function shouldIgnore(
  only: ?IgnoreList,
  dirname: string,
 ): boolean {
-  if (ignore) {
-    if (typeof context.filename !== "string") {
-      throw new Error(
-        `Configuration contains ignore checks, but no filename was passed to Babel`,
-      );
-    }
-    // $FlowIgnore - Flow refinements aren't quite smart enough for this :(
-    const ctx: ConfigContextNamed = context;
-    if (matchesPatterns(ctx, ignore, dirname)) {
-      debug(
-        "Ignored %o because it matched one of %O from %o",
-        context.filename,
-        ignore,
-        dirname,
-      );
-      return true;
-    }
+  if (ignore && matchesPatterns(context, ignore, dirname)) {
+    debug(
+      "Ignored %o because it matched one of %O from %o",
+      context.filename,
+      ignore,
+      dirname,
+    );
+    return true;
  }

-  if (only) {
-    if (typeof context.filename !== "string") {
-      throw new Error(
-        `Configuration contains ignore checks, but no filename was passed to Babel`,
-      );
-    }
-    // $FlowIgnore - Flow refinements aren't quite smart enough for this :(
-    const ctx: ConfigContextNamed = context;
-
-    if (!matchesPatterns(ctx, only, dirname)) {
-      debug(
-        "Ignored %o because it failed to match one of %O from %o",
-        context.filename,
-        only,
-        dirname,
-      );
-      return true;
-    }
+  if (only && !matchesPatterns(context, only, dirname)) {
+    debug(
+      "Ignored %o because it failed to match one of %O from %o",
+      context.filename,
+      only,
+      dirname,
+    );
+    return true;
  }

  return false;
@@ -651,64 +628,26 @@ function shouldIgnore(
 * Otherwise returns result of matching pattern Regex with filename.
 */
 function matchesPatterns(
-  context: ConfigContextNamed,
+  context: ConfigContext,
  patterns: IgnoreList,
  dirname: string,
-  allowNegation?: boolean = true,
 ): boolean {
-  const res = [];
-  const strings = [];
-  const fns = [];
-
-  patterns.forEach(pattern => {
-    if (typeof pattern === "string") strings.push(pattern);
-    else if (typeof pattern === "function") fns.push(pattern);
-    else res.push(pattern);
-  });
-
-  const filename = context.filename;
-  if (res.some(re => re.test(context.filename))) return true;
-  if (fns.some(fn => fn(filename))) return true;
-
-  if (strings.length > 0) {
-    const possibleDirs = getPossibleDirs(context);
-
-    const absolutePatterns = strings.map(pattern => {
-      // Preserve the "!" prefix so that micromatch can use it for negation.
-      const negate = pattern[0] === "!";
-      if (negate && !allowNegation) {
-        throw new Error(`Negation of file paths is not supported.`);
-      }
-      if (negate) pattern = pattern.slice(1);
-
-      return (negate ? "!" : "") + path.resolve(dirname, pattern);
-    });
-
-    if (
-      micromatch(possibleDirs, absolutePatterns, {
-        nocase: true,
-        nonegate: !allowNegation,
-      }).length > 0
-    ) {
-      return true;
-    }
-  }
-
-  return false;
+  return patterns.some(pattern =>
+    matchPattern(pattern, dirname, context.filename),
+  );
 }

-const getPossibleDirs = makeWeakCache((context: ConfigContextNamed) => {
-  let current = context.filename;
-  if (typeof current !== "string") return [];
+function matchPattern(pattern, dirname, pathToTest): boolean {
+  if (typeof pattern === "function") return !!pattern(pathToTest);

-  const possibleDirs = [current];
-  while (true) {
-    const previous = current;
-    current = path.dirname(current);
-    if (previous === current) break;
-
-    possibleDirs.push(current);
+  if (typeof pathToTest !== "string") {
+    throw new Error(
+      `Configuration contains string/RegExp pattern, but no filename was passed to Babel`,
+    );
  }

-  return possibleDirs;
-});
+  if (typeof pattern === "string") {
+    pattern = pathPatternToRegex(pattern, dirname);
+  }
+  return pattern.test(pathToTest);
+}
--- a/packages/babel-core/src/config/files/configuration.js
+++ b/packages/babel-core/src/config/files/configuration.js
@@ -12,6 +12,7 @@ import {
 } from "../caching";
 import makeAPI from "../helpers/config-api";
 import { makeStaticFileCache } from "./utils";
+import pathPatternToRegex from "../pattern-to-regex";
 import type { FilePackageData, RelativeConfig, ConfigFile } from "./types";

 const debug = buildDebug("babel:config:loading:files:configuration");
@@ -240,15 +241,24 @@ const readConfigJSON5 = makeStaticFileCache((filepath, content) => {
 });

 const readIgnoreConfig = makeStaticFileCache((filepath, content) => {
-  const ignore = content
+  const ignoreDir = path.dirname(filepath);
+  const ignorePatterns = content
    .split("\n")
    .map(line => line.replace(/#(.*?)$/, "").trim())
    .filter(line => !!line);

+  for (const pattern of ignorePatterns) {
+    if (pattern[0] === "!") {
+      throw new Error(`Negation of file paths is not supported.`);
+    }
+  }
+
  return {
    filepath,
    dirname: path.dirname(filepath),
-    ignore,
+    ignore: ignorePatterns.map(pattern =>
+      pathPatternToRegex(pattern, ignoreDir),
+    ),
  };
 });

--- a/packages/babel-core/src/config/files/types.js
+++ b/packages/babel-core/src/config/files/types.js
@@ -9,7 +9,7 @@ export type ConfigFile = {
 export type IgnoreFile = {
  filepath: string,
  dirname: string,
-  ignore: Array<string>,
+  ignore: Array<RegExp>,
 };

 export type RelativeConfig = {
--- a/packages/babel-core/src/config/pattern-to-regex.js
+++ b/packages/babel-core/src/config/pattern-to-regex.js
@@ -0,0 +1,51 @@
+// @flow
+import path from "path";
+import escapeRegExp from "lodash/escapeRegExp";
+
+const sep = `\\${path.sep}`;
+const endSep = `(?:${sep}|$)`;
+
+const substitution = `[^${sep}]+`;
+
+const starPat = `(?:${substitution}${sep})`;
+const starPatLast = `(?:${substitution}${endSep})`;
+
+const starStarPat = `${starPat}*?`;
+const starStarPatLast = `${starPat}*?${starPatLast}?`;
+
+/**
+ * Implement basic pattern matching that will allow users to do the simple
+ * tests with * and **. If users want full complex pattern matching, then can
+ * always use regex matching, or function validation.
+ */
+export default function pathToPattern(
+  pattern: string,
+  dirname: string,
+): RegExp {
+  const parts = path.resolve(dirname, pattern).split(path.sep);
+
+  return new RegExp(
+    [
+      "^",
+      ...parts.map((part, i) => {
+        const last = i === parts.length - 1;
+
+        // ** matches 0 or more path parts.
+        if (part === "**") return last ? starStarPatLast : starStarPat;
+
+        // * matches 1 path part.
+        if (part === "*") return last ? starPatLast : starPat;
+
+        // *.ext matches a wildcard with an extension.
+        if (part.indexOf("*.") === 0) {
+          return (
+            substitution + escapeRegExp(part.slice(1)) + (last ? endSep : sep)
+          );
+        }
+
+        // Otherwise match the pattern text.
+        return escapeRegExp(part) + (last ? endSep : sep);
+      }),
+    ].join(""),
+  );
+}
--- a/packages/babel-core/src/config/validation/option-assertions.js
+++ b/packages/babel-core/src/config/validation/option-assertions.js
@@ -192,14 +192,14 @@ export function assertBabelrcSearch(

  if (Array.isArray(value)) {
    value.forEach((item, i) => {
-      if (typeof item !== "string") {
-        throw new Error(`.${key}[${i}] must be a string.`);
+      if (!checkValidTest(item)) {
+        throw new Error(`.${key}[${i}] must be a string/Function/RegExp.`);
      }
    });
-  } else if (typeof value !== "string") {
+  } else if (!checkValidTest(value)) {
    throw new Error(
-      `.${key} must be a undefined, a boolean, a string, ` +
-        `or an array of strings, got ${JSON.stringify(value)}`,
+      `.${key} must be a undefined, a boolean, a string/Function/RegExp ` +
+        `or an array of those, got ${JSON.stringify(value)}`,
    );
  }
  return (value: any);
--- a/packages/babel-core/src/config/validation/options.js
+++ b/packages/babel-core/src/config/validation/options.js
@@ -242,7 +242,7 @@ export type OverridesList = Array<ValidatedOptions>;
 export type ConfigApplicableTest = IgnoreItem | Array<IgnoreItem>;

 export type ConfigFileSearch = string | boolean;
-export type BabelrcSearch = boolean | string | Array<string>;
+export type BabelrcSearch = boolean | IgnoreItem | IgnoreList;
 export type SourceMapsOption = boolean | "inline" | "both";
 export type SourceTypeOption = "module" | "script" | "unambiguous";
 export type CompactOption = boolean | "auto";
--- a/packages/babel-core/src/parse.js
+++ b/packages/babel-core/src/parse.js
@@ -24,8 +24,8 @@ type Parse = {

 export const parse: Parse = (function parse(code, opts, callback) {
  if (typeof opts === "function") {
-    opts = undefined;
    callback = opts;
+    opts = undefined;
  }

  // For backward-compat with Babel 7's early betas, we allow sync parsing when
--- a/packages/babel-core/src/transform-ast.js
+++ b/packages/babel-core/src/transform-ast.js
@@ -31,8 +31,8 @@ export const transformFromAst: TransformFromAst = (function transformFromAst(
  callback,
 ) {
  if (typeof opts === "function") {
-    opts = undefined;
    callback = opts;
+    opts = undefined;
  }

  // For backward-compat with Babel 6, we allow sync transformation when
--- a/packages/babel-core/src/transform.js
+++ b/packages/babel-core/src/transform.js
@@ -18,8 +18,8 @@ type Transform = {

 export const transform: Transform = (function transform(code, opts, callback) {
  if (typeof opts === "function") {
-    opts = undefined;
    callback = opts;
+    opts = undefined;
  }

  // For backward-compat with Babel 6, we allow sync transformation when
--- a/packages/babel-core/src/transformation/normalize-file.js
+++ b/packages/babel-core/src/transformation/normalize-file.js
@@ -2,6 +2,7 @@

 import path from "path";
 import buildDebug from "debug";
+import cloneDeep from "lodash/cloneDeep";
 import * as t from "@babel/types";
 import type { PluginPasses } from "../config";
 import convertSourceMap, { typeof Converter } from "convert-source-map";
@@ -75,6 +76,7 @@ export default function normalizeFile(
    } else if (ast.type !== "File") {
      throw new Error("AST root must be a Program or File node");
    }
+    ast = cloneDeep(ast);
  } else {
    // The parser's AST types aren't fully compatible with the types generated
    // by the logic in babel-types.
--- a/packages/babel-core/test/api.js
+++ b/packages/babel-core/test/api.js
@@ -5,11 +5,18 @@ import Plugin from "../lib/config/plugin";
 import generator from "@babel/generator";

 function assertIgnored(result) {
-  expect(result).toBeFalsy();
+  expect(result).toBeNull();
 }

 function assertNotIgnored(result) {
-  expect(result.ignored).toBeFalsy();
+  expect(result).not.toBeNull();
+}
+
+function parse(code, opts) {
+  return babel.parse(code, {
+    cwd: __dirname,
+    ...opts,
+  });
 }

 function transform(code, opts) {
@@ -36,13 +43,18 @@ function transformFileSync(filename, opts) {
  });
 }

-// shim
 function transformAsync(code, opts) {
-  return {
-    then: function(resolve) {
-      resolve(transform(code, opts));
-    },
-  };
+  return babel.transformAsync(code, {
+    cwd: __dirname,
+    ...opts,
+  });
+}
+
+function transformFromAst(ast, code, opts) {
+  return babel.transformFromAst(ast, code, {
+    cwd: __dirname,
+    ...opts,
+  });
 }

 describe("parser and generator options", function() {
@@ -170,6 +182,30 @@ describe("api", function() {
    expect(options).toEqual({ babelrc: false });
  });

+  it("transformFromAst should not mutate the AST", function() {
+    const program = "const identifier = 1";
+    const node = parse(program);
+    const { code } = transformFromAst(node, program, {
+      plugins: [
+        function() {
+          return {
+            visitor: {
+              Identifier: function(path) {
+                path.node.name = "replaced";
+              },
+            },
+          };
+        },
+      ],
+    });
+
+    expect(code).toBe("const replaced = 1;");
+    expect(node.program.body[0].declarations[0].id.name).toBe(
+      "identifier",
+      "original ast should not have been mutated",
+    );
+  });
+
  it("options throw on falsy true", function() {
    return expect(function() {
      transform("", {
--- a/packages/babel-core/test/config-chain.js
+++ b/packages/babel-core/test/config-chain.js
@@ -899,6 +899,23 @@ describe("buildConfigChain", function() {

      expect(opts.comments).toBe(true);
    });
+
+    it("should remove the overrides and filtering fields from the options", () => {
+      const opts = loadOptions({
+        cwd: fixture("nonexistant-fake"),
+        filename: fixture("nonexistant-fake", "src.js"),
+        babelrc: false,
+        overrides: [],
+        test: /^/,
+        include: /^/,
+        exclude: [],
+      });
+
+      expect(opts.overrides).toBeUndefined();
+      expect(opts.test).toBeUndefined();
+      expect(opts.include).toBeUndefined();
+      expect(opts.exclude).toBeUndefined();
+    });
  });

  describe("config files", () => {
--- a/packages/babel-core/test/fixtures/parse/.babelrc
+++ b/packages/babel-core/test/fixtures/parse/.babelrc
@@ -1,5 +1,5 @@
 {
-  "plugins": [
-    ["@babel/syntax-decorators", { "legacy": true }]
-  ]
+  "parserOpts": {
+  	"plugins": ["decorators-legacy"]
+  }
 }
--- a/packages/babel-core/test/fixtures/transformation/misc/regression-4855/options.json
+++ b/packages/babel-core/test/fixtures/transformation/misc/regression-4855/options.json
@@ -1,7 +1,10 @@
 {
  "compact": false,
  "presets": [
-    "env",
-    ["stage-2", { "decoratorsLegacy": true }]
+    "env"
+  ],
+  "plugins": [
+    "external-helpers",
+    "proposal-object-rest-spread"
  ]
 }
--- a/packages/babel-core/test/fixtures/transformation/source-maps/arrow-function/source-mappings.json
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/arrow-function/source-mappings.json
@@ -1,7 +1,7 @@
 [{
  "original": {
    "line": 1,
-    "column": 13
+    "column": 14
  },
  "generated": {
    "line": 2,
--- a/packages/babel-core/test/fixtures/transformation/source-maps/full/source-map.json
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/full/source-map.json
@@ -6,6 +6,6 @@
    "map",
    "x"
  ],
-  "mappings": "AAAAA,IAAIC,GAAJ,CAAQ;AAAA,SAAKC,IAAIA,CAAT;AAAA,CAAR",
+  "mappings": "AAAAA,GAAG,CAACC,GAAJ,CAAQ,UAAAC,CAAC;AAAA,SAAIA,CAAC,GAAGA,CAAR;AAAA,CAAT",
  "sourcesContent": ["arr.map(x => x * x);"]
 }
--- a/packages/babel-core/test/fixtures/transformation/source-maps/inline/output.js
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/inline/output.js
@@ -1,4 +1,4 @@
 arr.map(function (x) {
  return x * x;
 });
-//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNvdXJjZS1tYXBzL2lubGluZS9pbnB1dC5qcyJdLCJuYW1lcyI6WyJhcnIiLCJtYXAiLCJ4Il0sIm1hcHBpbmdzIjoiQUFBQUEsSUFBSUMsR0FBSixDQUFRO0FBQUEsU0FBS0MsSUFBSUEsQ0FBVDtBQUFBLENBQVIiLCJzb3VyY2VzQ29udGVudCI6WyJhcnIubWFwKHggPT4geCAqIHgpOyJdfQ==
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNvdXJjZS1tYXBzL2lubGluZS9pbnB1dC5qcyJdLCJuYW1lcyI6WyJhcnIiLCJtYXAiLCJ4Il0sIm1hcHBpbmdzIjoiQUFBQUEsR0FBRyxDQUFDQyxHQUFKLENBQVEsVUFBQUMsQ0FBQztBQUFBLFNBQUlBLENBQUMsR0FBR0EsQ0FBUjtBQUFBLENBQVQiLCJzb3VyY2VzQ29udGVudCI6WyJhcnIubWFwKHggPT4geCAqIHgpOyJdfQ==
--- a/packages/babel-core/test/fixtures/transformation/source-maps/input-source-map-complex/source-map.json
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/input-source-map-complex/source-map.json
@@ -4,7 +4,7 @@
    "HelloWorld.vue"
  ],
  "names": [],
-  "mappings": ";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;eAsFA;AACA,QAAA,YADA;;AAEA,SAAA;AACA,WAAA;AACA,WAAA;AADA,KAAA;AAGA;;AANA,C",
+  "mappings": ";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;eAsFA;AACA,EAAA,IAAA,EAAA,YADA;;AAEA,EAAA,IAAA,GAAA;AACA,WAAA;AACA,MAAA,GAAA,EAAA;AADA,KAAA;AAGA;;AANA,C",
  "sourceRoot": "src/components",
  "sourcesContent": [
    "<template>\n  <div class=\"hello\">\n    <h1>{{ msg }}</h1>\n    <h2>Essential Links</h2>\n    <ul>\n      <li>\n        <a\n          href=\"https://vuejs.org\"\n          target=\"_blank\"\n        >\n          Core Docs\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"https://forum.vuejs.org\"\n          target=\"_blank\"\n        >\n          Forum\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"https://chat.vuejs.org\"\n          target=\"_blank\"\n        >\n          Community Chat\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"https://twitter.com/vuejs\"\n          target=\"_blank\"\n        >\n          Twitter\n        </a>\n      </li>\n      <br>\n      <li>\n        <a\n          href=\"http://vuejs-templates.github.io/webpack/\"\n          target=\"_blank\"\n        >\n          Docs for This Template\n        </a>\n      </li>\n    </ul>\n    <h2>Ecosystem</h2>\n    <ul>\n      <li>\n        <a\n          href=\"http://router.vuejs.org/\"\n          target=\"_blank\"\n        >\n          vue-router\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"http://vuex.vuejs.org/\"\n          target=\"_blank\"\n        >\n          vuex\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"http://vue-loader.vuejs.org/\"\n          target=\"_blank\"\n        >\n          vue-loader\n        </a>\n      </li>\n      <li>\n        <a\n          href=\"https://github.com/vuejs/awesome-vue\"\n          target=\"_blank\"\n        >\n          awesome-vue\n        </a>\n      </li>\n    </ul>\n  </div>\n</template>\n\n<script>\nexport default {\n  name: 'HelloWorld',\n  data () {\n    return {\n      msg: 'Welcome to Your Vue.js App'\n    }\n  }\n}\n</script>\n\n<!-- Add \"scoped\" attribute to limit CSS to this component only -->\n<style scoped>\nh1, h2 {\n  font-weight: normal;\n}\nul {\n  list-style-type: none;\n  padding: 0;\n}\nli {\n  display: inline-block;\n  margin: 0 10px;\n}\na {\n  color: #42b983;\n}\n</style>\n"
--- a/packages/babel-core/test/fixtures/transformation/source-maps/input-source-map/source-map.json
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/input-source-map/source-map.json
@@ -1,5 +1,5 @@
 {
-  "mappings": "AAAA,IAAA,MAAU,Y;SAAM,C;AAAC,CAAjB",
+  "mappings": "AAAA,IAAA,GAAA,GAAU,Y;SAAM,C;AAAC,CAAjB",
  "names": [],
  "sources": ["original.js"],
  "sourcesContent": ["var foo = () => 4;"],
--- a/packages/babel-core/test/fixtures/transformation/source-maps/interpreter-directive-prefix/source-map.json
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/interpreter-directive-prefix/source-map.json
@@ -1,5 +1,5 @@
 {
-  "mappings": "AAAA;AAEAA,QAAQC,GAAR,CAAY,eAAZ",
+  "mappings": "AAAA;AAEAA,OAAO,CAACC,GAAR,CAAY,eAAZ",
  "names": [
    "console",
    "log"
--- a/packages/babel-generator/package.json
+++ b/packages/babel-generator/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/generator",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Turns an AST into code.",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -11,14 +11,14 @@
    "lib"
  ],
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53",
+    "@babel/types": "7.0.0-beta.55",
    "jsesc": "^2.5.1",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "source-map": "^0.5.0",
    "trim-right": "^1.0.1"
  },
  "devDependencies": {
-    "@babel/helper-fixtures": "7.0.0-beta.53",
-    "@babel/parser": "7.0.0-beta.53"
+    "@babel/helper-fixtures": "7.0.0-beta.55",
+    "@babel/parser": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-generator/src/buffer.js
+++ b/packages/babel-generator/src/buffer.js
@@ -30,6 +30,7 @@ export default class Buffer {
    column: null,
    filename: null,
  };
+  _disallowedPop: Object | null = null;

  /**
   * Get the final string output from the buffer, along with the sourcemap if one exists.
@@ -71,8 +72,14 @@ export default class Buffer {

  append(str: string): void {
    this._flush();
-    const { line, column, filename, identifierName } = this._sourcePosition;
-    this._append(str, line, column, identifierName, filename);
+    const {
+      line,
+      column,
+      filename,
+      identifierName,
+      force,
+    } = this._sourcePosition;
+    this._append(str, line, column, identifierName, filename, force);
  }

  /**
@@ -87,8 +94,14 @@ export default class Buffer {
      }
    }

-    const { line, column, filename, identifierName } = this._sourcePosition;
-    this._queue.unshift([str, line, column, identifierName, filename]);
+    const {
+      line,
+      column,
+      filename,
+      identifierName,
+      force,
+    } = this._sourcePosition;
+    this._queue.unshift([str, line, column, identifierName, filename, force]);
  }

  _flush(): void {
@@ -102,6 +115,7 @@ export default class Buffer {
    column: number,
    identifierName: ?string,
    filename: ?string,
+    force?: boolean,
  ): void {
    // If there the line is ending, adding a new mapping marker is redundant
    if (this._map && str[0] !== "\n") {
@@ -112,6 +126,7 @@ export default class Buffer {
        column,
        identifierName,
        filename,
+        force,
      );
    }

@@ -169,20 +184,60 @@ export default class Buffer {
    return this._queue.length > 0 || !!this._last;
  }

+  /**
+   * Certain sourcemap usecases expect mappings to be more accurate than
+   * Babel's generic sourcemap handling allows. For now, we special-case
+   * identifiers to allow for the primary cases to work.
+   * The goal of this line is to ensure that the map output from Babel will
+   * have an exact range on identifiers in the output code. Without this
+   * line, Babel would potentially include some number of trailing tokens
+   * that are printed after the identifier, but before another location has
+   * been assigned.
+   * This allows tooling like Rollup and Webpack to more accurately perform
+   * their own transformations. Most importantly, this allows the import/export
+   * transformations performed by those tools to loose less information when
+   * applying their own transformations on top of the code and map results
+   * generated by Babel itself.
+   *
+   * The primary example of this is the snippet:
+   *
+   *   import mod from "mod";
+   *   mod();
+   *
+   * With this line, there will be one mapping range over "mod" and another
+   * over "();", where previously it would have been a single mapping.
+   */
+  exactSource(loc: Object, cb: () => void) {
+    // In cases where parent expressions start at the same locations as the
+    // identifier itself, the current active location could already be the
+    // start of this range. We use 'force' here to explicitly start a new
+    // mapping range for this new token.
+    this.source("start", loc, true /* force */);
+
+    cb();
+
+    // In cases where tokens are printed after this item, we want to
+    // ensure that they get the location of the _end_ of the identifier.
+    // To accomplish this, we assign the location and explicitly disable
+    // the standard Buffer withSource previous-position "reactivation"
+    // logic. This means that if another item calls '.source()' to set
+    // the location after the identifier, it is fine, but the position won't
+    // be automatically replaced with the previous value.
+    this.source("end", loc);
+    this._disallowPop("start", loc);
+  }
+
  /**
   * Sets a given position as the current source location so generated code after this call
   * will be given this position in the sourcemap.
   */

-  source(prop: string, loc: Location): void {
+  source(prop: string, loc: Location, force?: boolean): void {
    if (prop && !loc) return;

-    const pos = loc ? loc[prop] : null;
-
-    this._sourcePosition.identifierName = (loc && loc.identifierName) || null;
-    this._sourcePosition.line = pos ? pos.line : null;
-    this._sourcePosition.column = pos ? pos.column : null;
-    this._sourcePosition.filename = (loc && loc.filename) || null;
+    // Since this is called extremly often, we re-use the same _sourcePosition
+    // object for the whole lifetime of the buffer.
+    this._normalizePosition(prop, loc, this._sourcePosition, force);
  }

  /**
@@ -192,7 +247,9 @@ export default class Buffer {
  withSource(prop: string, loc: Location, cb: () => void): void {
    if (!this._map) return cb();

-    // Use the call stack to manage a stack of "source location" data.
+    // Use the call stack to manage a stack of "source location" data because
+    // the _sourcePosition object is mutated over the course of code generation,
+    // and constantly copying it would be slower.
    const originalLine = this._sourcePosition.line;
    const originalColumn = this._sourcePosition.column;
    const originalFilename = this._sourcePosition.filename;
@@ -202,10 +259,79 @@ export default class Buffer {

    cb();

-    this._sourcePosition.line = originalLine;
-    this._sourcePosition.column = originalColumn;
-    this._sourcePosition.filename = originalFilename;
-    this._sourcePosition.identifierName = originalIdentifierName;
+    if (
+      // If the current active position is forced, we only want to reactivate
+      // the old position if it is different from the newest position.
+      (!this._sourcePosition.force ||
+        this._sourcePosition.line !== originalLine ||
+        this._sourcePosition.column !== originalColumn ||
+        this._sourcePosition.filename !== originalFilename) &&
+      // Verify if reactivating this specific position has been disallowed.
+      (!this._disallowedPop ||
+        this._disallowedPop.line !== originalLine ||
+        this._disallowedPop.column !== originalColumn ||
+        this._disallowedPop.filename !== originalFilename)
+    ) {
+      this._sourcePosition.line = originalLine;
+      this._sourcePosition.column = originalColumn;
+      this._sourcePosition.filename = originalFilename;
+      this._sourcePosition.identifierName = originalIdentifierName;
+      this._sourcePosition.force = false;
+      this._disallowedPop = null;
+    }
+  }
+
+  /**
+   * Allow printers to disable the default location-reset behavior of the
+   * sourcemap output, so that certain printers can be sure that the
+   * "end" location that they set is actually treated as the end position.
+   */
+  _disallowPop(prop: string, loc: Location) {
+    if (prop && !loc) return;
+
+    this._disallowedPop = this._normalizePosition(prop, loc);
+  }
+
+  _normalizePosition(
+    prop: string,
+    loc: Object,
+    targetObj: Object,
+    force?: boolean,
+  ) {
+    const pos = loc ? loc[prop] : null;
+
+    if (targetObj === undefined) {
+      // Initialize with fields so that the object doesn't change shape.
+      targetObj = {
+        identifierName: null,
+        line: null,
+        column: null,
+        filename: null,
+        force: false,
+      };
+    }
+
+    const origLine = targetObj.line;
+    const origColumn = targetObj.column;
+    const origFilename = targetObj.filename;
+
+    targetObj.identifierName =
+      (prop === "start" && loc && loc.identifierName) || null;
+    targetObj.line = pos ? pos.line : null;
+    targetObj.column = pos ? pos.column : null;
+    targetObj.filename = (loc && loc.filename) || null;
+
+    // We want to skip reassigning `force` if we're re-setting the same position.
+    if (
+      force ||
+      targetObj.line !== origLine ||
+      targetObj.column !== origColumn ||
+      targetObj.filename !== origFilename
+    ) {
+      targetObj.force = force;
+    }
+
+    return targetObj;
  }

  getCurrentColumn(): number {
--- a/packages/babel-generator/src/generators/template-literals.js
+++ b/packages/babel-generator/src/generators/template-literals.js
@@ -1,5 +1,6 @@
 export function TaggedTemplateExpression(node: Object) {
  this.print(node.tag, node);
+  this.print(node.typeParameters, node); // TS
  this.print(node.quasi, node);
 }

--- a/packages/babel-generator/src/generators/types.js
+++ b/packages/babel-generator/src/generators/types.js
@@ -2,7 +2,9 @@ import * as t from "@babel/types";
 import jsesc from "jsesc";

 export function Identifier(node: Object) {
-  this.word(node.name);
+  this.exactSource(node.loc, () => {
+    this.word(node.name);
+  });
 }

 export function RestElement(node: Object) {
--- a/packages/babel-generator/src/printer.js
+++ b/packages/babel-generator/src/printer.js
@@ -200,6 +200,12 @@ export default class Printer {
    this._buf.removeTrailingNewline();
  }

+  exactSource(loc: Object, cb: () => void) {
+    this._catchUp("start", loc);
+
+    this._buf.exactSource(loc, cb);
+  }
+
  source(prop: string, loc: Object): void {
    this._catchUp(prop, loc);

--- a/packages/babel-generator/src/source-map.js
+++ b/packages/babel-generator/src/source-map.js
@@ -53,6 +53,7 @@ export default class SourceMap {
    column: number,
    identifierName: ?string,
    filename: ?string,
+    force?: boolean,
  ) {
    // Adding an empty mapping at the start of a generated line just clutters the map.
    if (this._lastGenLine !== generatedLine && line === null) return;
@@ -60,6 +61,7 @@ export default class SourceMap {
    // If this mapping points to the same source location as the last one, we can ignore it since
    // the previous one covers it.
    if (
+      !force &&
      this._lastGenLine === generatedLine &&
      this._lastSourceLine === line &&
      this._lastSourceColumn === column
--- a/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/input.js
+++ b/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/input.js
@@ -0,0 +1,16 @@
+foo;
+foo();
+foo().bar;
+obj.foo;
+obj.foo();
+obj.foo.bar;
+obj.foo().bar;
+{
+  foo;
+  foo();
+  foo().bar;
+  obj.foo;
+  obj.foo();
+  obj.foo.bar;
+  obj.foo().bar;
+}
--- a/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/output.js
+++ b/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/output.js
@@ -0,0 +1,16 @@
+foo;
+foo();
+foo().bar;
+obj.foo;
+obj.foo();
+obj.foo.bar;
+obj.foo().bar;
+{
+  foo;
+  foo();
+  foo().bar;
+  obj.foo;
+  obj.foo();
+  obj.foo.bar;
+  obj.foo().bar;
+}
--- a/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/source-map.json
+++ b/packages/babel-generator/test/fixtures/sourcemaps/call-identifiers/source-map.json
@@ -0,0 +1,9 @@
+{
+  "mappings": "AAAAA,GAAG;AACHA,GAAG;AACHA,GAAG,GAAGC,GAAN;AACAC,GAAG,CAACF,GAAJ;AACAE,GAAG,CAACF,GAAJ;AACAE,GAAG,CAACF,GAAJ,CAAQC,GAAR;AACAC,GAAG,CAACF,GAAJ,GAAUC,GAAV;AACA;AACED,EAAAA,GAAG;AACHA,EAAAA,GAAG;AACHA,EAAAA,GAAG,GAAGC,GAAN;AACAC,EAAAA,GAAG,CAACF,GAAJ;AACAE,EAAAA,GAAG,CAACF,GAAJ;AACAE,EAAAA,GAAG,CAACF,GAAJ,CAAQC,GAAR;AACAC,EAAAA,GAAG,CAACF,GAAJ,GAAUC,GAAV;AACD",
+  "names": ["foo", "bar", "obj"],
+  "sources": ["fixtures/sourcemaps/call-identifiers/input.js"],
+  "sourcesContent": [
+    "foo;\nfoo();\nfoo().bar;\nobj.foo;\nobj.foo();\nobj.foo.bar;\nobj.foo().bar;\n{\n  foo;\n  foo();\n  foo().bar;\n  obj.foo;\n  obj.foo();\n  obj.foo.bar;\n  obj.foo().bar;\n}"
+  ],
+  "version": 3
+}
--- a/packages/babel-generator/test/fixtures/typescript/type-arguments-tagged-template/input.js
+++ b/packages/babel-generator/test/fixtures/typescript/type-arguments-tagged-template/input.js
@@ -0,0 +1 @@
+f<T>``;
--- a/packages/babel-generator/test/fixtures/typescript/type-arguments-tagged-template/output.js
+++ b/packages/babel-generator/test/fixtures/typescript/type-arguments-tagged-template/output.js
@@ -0,0 +1 @@
+f<T>``;
--- a/packages/babel-generator/test/index.js
+++ b/packages/babel-generator/test/index.js
@@ -49,7 +49,8 @@ describe("generation", function() {
        version: 3,
        sources: ["a.js", "b.js"],
        mappings:
-          "AAAA,SAASA,EAAT,CAAaC,GAAb,EAAkB;AAAEC,UAAQC,GAAR,CAAYF,GAAZ;AAAmB;;ACAvCD,GAAG,OAAH",
+          // eslint-disable-next-line max-len
+          "AAAA,SAASA,EAAT,CAAaC,GAAb,EAAkB;AAAEC,EAAAA,OAAO,CAACC,GAAR,CAAYF,GAAZ;AAAmB;;ACAvCD,EAAE,CAAC,OAAD,CAAF",
        names: ["hi", "msg", "console", "log"],
        sourcesContent: [
          "function hi (msg) { console.log(msg); }\n",
@@ -103,6 +104,18 @@ describe("generation", function() {
          source: "a.js",
          original: { line: 1, column: 20 },
        },
+        {
+          name: "console",
+          generated: { line: 2, column: 2 },
+          source: "a.js",
+          original: { line: 1, column: 20 },
+        },
+        {
+          name: undefined,
+          generated: { line: 2, column: 9 },
+          source: "a.js",
+          original: { line: 1, column: 27 },
+        },
        {
          name: "log",
          generated: { line: 2, column: 10 },
@@ -139,6 +152,12 @@ describe("generation", function() {
          source: "b.js",
          original: { line: 1, column: 0 },
        },
+        {
+          name: undefined,
+          generated: { line: 5, column: 2 },
+          source: "b.js",
+          original: { line: 1, column: 2 },
+        },
        {
          name: undefined,
          generated: { line: 5, column: 3 },
@@ -149,6 +168,12 @@ describe("generation", function() {
          name: undefined,
          generated: { line: 5, column: 10 },
          source: "b.js",
+          original: { line: 1, column: 2 },
+        },
+        {
+          name: undefined,
+          generated: { line: 5, column: 11 },
+          source: "b.js",
          original: { line: 1, column: 0 },
        },
      ],
@@ -189,7 +214,7 @@ describe("generation", function() {
        version: 3,
        sources: ["inline"],
        names: ["foo", "bar"],
-        mappings: "AAAA,SAASA,IAAT,GAAe;AAAEC;AAAM",
+        mappings: "AAAA,SAASA,IAAT,GAAe;AAAEC,EAAAA,IAAG;AAAG",
        sourcesContent: ["function foo() { bar; }\n"],
      },
      "sourcemap was incorrectly generated",
@@ -227,6 +252,18 @@ describe("generation", function() {
          source: "inline",
          original: { line: 1, column: 17 },
        },
+        {
+          name: "bar",
+          generated: { line: 2, column: 2 },
+          source: "inline",
+          original: { line: 1, column: 17 },
+        },
+        {
+          name: undefined,
+          generated: { line: 2, column: 6 },
+          source: "inline",
+          original: { line: 1, column: 20 },
+        },
        {
          name: undefined,
          generated: { line: 3, column: 0 },
@@ -362,36 +399,49 @@ const suites = fixtures(`${__dirname}/fixtures`);
 suites.forEach(function(testSuite) {
  describe("generation/" + testSuite.title, function() {
    testSuite.tests.forEach(function(task) {
-      it(
+      const testFn = task.disabled ? it.skip : it;
+
+      testFn(
        task.title,
-        !task.disabled &&
-          function() {
-            const expected = task.expect;
-            const actual = task.actual;
-            const actualCode = actual.code;

-            if (actualCode) {
-              const actualAst = parse(actualCode, {
-                filename: actual.loc,
-                plugins: task.options.plugins || [],
-                strictMode: false,
-                sourceType: "module",
-              });
-              const result = generate(actualAst, task.options, actualCode);
+        function() {
+          const expected = task.expect;
+          const actual = task.actual;
+          const actualCode = actual.code;

-              if (
-                !expected.code &&
-                result.code &&
-                fs.statSync(path.dirname(expected.loc)).isDirectory() &&
-                !process.env.CI
-              ) {
-                console.log(`New test file created: ${expected.loc}`);
-                fs.writeFileSync(expected.loc, result.code);
-              } else {
-                expect(result.code).toBe(expected.code);
-              }
+          if (actualCode) {
+            const actualAst = parse(actualCode, {
+              filename: actual.loc,
+              plugins: task.options.plugins || [],
+              strictMode: false,
+              sourceType: "module",
+              sourceMaps: !!task.sourceMap,
+            });
+            const options = {
+              sourceFileName: path.relative(__dirname, actual.loc),
+              ...task.options,
+              sourceMaps: task.sourceMap ? true : task.options.sourceMaps,
+            };
+
+            const result = generate(actualAst, options, actualCode);
+
+            if (options.sourceMaps) {
+              expect(result.map).toEqual(task.sourceMap);
            }
-          },
+
+            if (
+              !expected.code &&
+              result.code &&
+              fs.statSync(path.dirname(expected.loc)).isDirectory() &&
+              !process.env.CI
+            ) {
+              console.log(`New test file created: ${expected.loc}`);
+              fs.writeFileSync(expected.loc, result.code);
+            } else {
+              expect(result.code).toBe(expected.code);
+            }
+          }
+        },
      );
    });
  });
--- a/packages/babel-helper-annotate-as-pure/package.json
+++ b/packages/babel-helper-annotate-as-pure/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-annotate-as-pure",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to annotate paths and nodes with #__PURE__ comment",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-annotate-as-pure",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-bindify-decorators/package.json
+++ b/packages/babel-helper-bindify-decorators/package.json
@@ -1,12 +1,12 @@
 {
  "name": "@babel/helper-bindify-decorators",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to bindify decorators",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-bindify-decorators",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-builder-binary-assignment-operator-visitor/package.json
+++ b/packages/babel-helper-builder-binary-assignment-operator-visitor/package.json
@@ -1,12 +1,12 @@
 {
  "name": "@babel/helper-builder-binary-assignment-operator-visitor",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to build binary assignment operator visitors",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-builder-binary-assignment-operator-visitor",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-explode-assignable-expression": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-explode-assignable-expression": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-builder-react-jsx/package.json
+++ b/packages/babel-helper-builder-react-jsx/package.json
@@ -1,12 +1,12 @@
 {
  "name": "@babel/helper-builder-react-jsx",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to build react jsx",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-builder-react-jsx",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53",
+    "@babel/types": "7.0.0-beta.55",
    "esutils": "^2.0.0"
  }
 }
--- a/packages/babel-helper-call-delegate/package.json
+++ b/packages/babel-helper-call-delegate/package.json
@@ -1,13 +1,13 @@
 {
  "name": "@babel/helper-call-delegate",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to call delegate",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-call-delegate",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-hoist-variables": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-hoist-variables": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-define-map/package.json
+++ b/packages/babel-helper-define-map/package.json
@@ -1,13 +1,13 @@
 {
  "name": "@babel/helper-define-map",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to define a map",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-define-map",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-function-name": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53",
-    "lodash": "^4.17.5"
+    "@babel/helper-function-name": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55",
+    "lodash": "^4.17.10"
  }
 }
--- a/packages/babel-helper-explode-assignable-expression/package.json
+++ b/packages/babel-helper-explode-assignable-expression/package.json
@@ -1,12 +1,12 @@
 {
  "name": "@babel/helper-explode-assignable-expression",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to explode an assignable expression",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-explode-assignable-expression",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-explode-class/package.json
+++ b/packages/babel-helper-explode-class/package.json
@@ -1,13 +1,13 @@
 {
  "name": "@babel/helper-explode-class",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to explode class",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-explode-class",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-bindify-decorators": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-bindify-decorators": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-fixtures/package.json
+++ b/packages/babel-helper-fixtures/package.json
@@ -1,13 +1,13 @@
 {
  "name": "@babel/helper-fixtures",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to support fixtures",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "license": "MIT",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-fixtures",
  "main": "lib/index.js",
  "dependencies": {
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "semver": "^5.3.0",
    "try-resolve": "^1.0.0"
  }
--- a/packages/babel-helper-function-name/package.json
+++ b/packages/babel-helper-function-name/package.json
@@ -1,13 +1,13 @@
 {
  "name": "@babel/helper-function-name",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to change the property 'name' of every function",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-function-name",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-get-function-arity": "7.0.0-beta.53",
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-get-function-arity": "7.0.0-beta.55",
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-get-function-arity/package.json
+++ b/packages/babel-helper-get-function-arity/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-get-function-arity",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to get function arity",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-get-function-arity",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-hoist-variables/package.json
+++ b/packages/babel-helper-hoist-variables/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-hoist-variables",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to hoist variables",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-hoist-variables",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-member-expression-to-functions/package.json
+++ b/packages/babel-helper-member-expression-to-functions/package.json
@@ -1,12 +1,12 @@
 {
  "name": "@babel/helper-member-expression-to-functions",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to replace certain member expressions with function calls",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-member-expression-to-functions",
  "license": "MIT",
  "main": "lib/index.js",
  "author": "Justin Ridgewell <justin@ridgewell.name>",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-module-imports/package.json
+++ b/packages/babel-helper-module-imports/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helper-module-imports",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel helper functions for inserting module loads",
  "author": "Logan Smyth <loganfsmyth@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,10 +8,10 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-module-imports",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53",
-    "lodash": "^4.17.5"
+    "@babel/types": "7.0.0-beta.55",
+    "lodash": "^4.17.10"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-module-transforms/package.json
+++ b/packages/babel-helper-module-transforms/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helper-module-transforms",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel helper functions for implementing ES6 module transformations",
  "author": "Logan Smyth <loganfsmyth@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,11 +8,11 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-module-transforms",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-module-imports": "7.0.0-beta.53",
-    "@babel/helper-simple-access": "7.0.0-beta.53",
-    "@babel/helper-split-export-declaration": "7.0.0-beta.53",
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53",
-    "lodash": "^4.17.5"
+    "@babel/helper-module-imports": "7.0.0-beta.55",
+    "@babel/helper-simple-access": "7.0.0-beta.55",
+    "@babel/helper-split-export-declaration": "7.0.0-beta.55",
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55",
+    "lodash": "^4.17.10"
  }
 }
--- a/packages/babel-helper-module-transforms/src/normalize-and-load-metadata.js
+++ b/packages/babel-helper-module-transforms/src/normalize-and-load-metadata.js
@@ -246,12 +246,18 @@ function getModuleMetadata(
  });

  for (const metadata of sourceData.values()) {
-    if (metadata.importsNamespace.size > 0) {
-      metadata.interop = "namespace";
-      continue;
-    }
    let needsDefault = false;
    let needsNamed = false;
+
+    if (metadata.importsNamespace.size > 0) {
+      needsDefault = true;
+      needsNamed = true;
+    }
+
+    if (metadata.reexportAll) {
+      needsNamed = true;
+    }
+
    for (const importName of metadata.imports.values()) {
      if (importName === "default") needsDefault = true;
      else needsNamed = true;
--- a/packages/babel-helper-optimise-call-expression/package.json
+++ b/packages/babel-helper-optimise-call-expression/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-optimise-call-expression",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to optimise call expression",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-optimise-call-expression",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-plugin-test-runner/package.json
+++ b/packages/babel-helper-plugin-test-runner/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-plugin-test-runner",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to support test runner",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-plugin-test-runner",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-transform-fixture-test-runner": "7.0.0-beta.53"
+    "@babel/helper-transform-fixture-test-runner": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-plugin-utils/package.json
+++ b/packages/babel-helper-plugin-utils/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helper-plugin-utils",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "General utilities for plugins to use",
  "author": "Logan Smyth <loganfsmyth@gmail.com>",
  "homepage": "https://babeljs.io/",
--- a/packages/babel-helper-regex/package.json
+++ b/packages/babel-helper-regex/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-regex",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to check for literal RegEx",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-regex",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "lodash": "^4.17.5"
+    "lodash": "^4.17.10"
  }
 }
--- a/packages/babel-helper-remap-async-to-generator/package.json
+++ b/packages/babel-helper-remap-async-to-generator/package.json
@@ -1,15 +1,15 @@
 {
  "name": "@babel/helper-remap-async-to-generator",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to remap async functions to generators",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-remap-async-to-generator",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-annotate-as-pure": "7.0.0-beta.53",
-    "@babel/helper-wrap-function": "7.0.0-beta.53",
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-annotate-as-pure": "7.0.0-beta.55",
+    "@babel/helper-wrap-function": "7.0.0-beta.55",
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-replace-supers/package.json
+++ b/packages/babel-helper-replace-supers/package.json
@@ -1,14 +1,14 @@
 {
  "name": "@babel/helper-replace-supers",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper function to replace supers",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-replace-supers",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-member-expression-to-functions": "7.0.0-beta.53",
-    "@babel/helper-optimise-call-expression": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-member-expression-to-functions": "7.0.0-beta.55",
+    "@babel/helper-optimise-call-expression": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-simple-access/package.json
+++ b/packages/babel-helper-simple-access/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helper-simple-access",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel helper for ensuring that access to a given value is performed through simple accesses",
  "author": "Logan Smyth <loganfsmyth@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,8 +8,8 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-simple-access",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53",
-    "lodash": "^4.17.5"
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55",
+    "lodash": "^4.17.10"
  }
 }
--- a/packages/babel-helper-split-export-declaration/package.json
+++ b/packages/babel-helper-split-export-declaration/package.json
@@ -1,11 +1,11 @@
 {
  "name": "@babel/helper-split-export-declaration",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-split-export-declaration",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helper-transform-fixture-test-runner/package.json
+++ b/packages/babel-helper-transform-fixture-test-runner/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helper-transform-fixture-test-runner",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Transform test runner for @babel/helper-fixtures module",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,13 +8,13 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-transform-fixture-test-runner",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/code-frame": "7.0.0-beta.53",
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-fixtures": "7.0.0-beta.53",
-    "@babel/polyfill": "7.0.0-beta.53",
+    "@babel/code-frame": "7.0.0-beta.55",
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-fixtures": "7.0.0-beta.55",
+    "@babel/polyfill": "7.0.0-beta.55",
    "jest": "^22.4.2",
    "jest-diff": "^22.4.0",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "resolve": "^1.3.2",
    "source-map": "^0.5.0"
  }
--- a/packages/babel-helper-transform-fixture-test-runner/src/index.js
+++ b/packages/babel-helper-transform-fixture-test-runner/src/index.js
@@ -345,44 +345,44 @@ export default function(
          continue;
        }

-        it(
+        const testFn = task.disabled ? it.skip : it;
+
+        testFn(
          task.title,
-          !task.disabled &&
-            function() {
-              function runTask() {
-                run(task);
-              }

-              defaults(task.options, {
-                sourceMap: !!(task.sourceMappings || task.sourceMap),
+          function() {
+            function runTask() {
+              run(task);
+            }
+
+            defaults(task.options, {
+              sourceMap: !!(task.sourceMappings || task.sourceMap),
+            });
+
+            extend(task.options, taskOpts);
+
+            if (dynamicOpts) dynamicOpts(task.options, task);
+
+            const throwMsg = task.options.throws;
+            if (throwMsg) {
+              // internal api doesn't have this option but it's best not to pollute
+              // the options object with useless options
+              delete task.options.throws;
+
+              assert.throws(runTask, function(err) {
+                return throwMsg === true || err.message.indexOf(throwMsg) >= 0;
              });
-
-              extend(task.options, taskOpts);
-
-              if (dynamicOpts) dynamicOpts(task.options, task);
-
-              const throwMsg = task.options.throws;
-              if (throwMsg) {
-                // internal api doesn't have this option but it's best not to pollute
-                // the options object with useless options
-                delete task.options.throws;
-
-                assert.throws(runTask, function(err) {
-                  return (
-                    throwMsg === true || err.message.indexOf(throwMsg) >= 0
-                  );
-                });
-              } else {
-                if (task.exec.code) {
-                  const result = run(task);
-                  if (result && typeof result.then === "function") {
-                    return result;
-                  }
-                } else {
-                  runTask();
+            } else {
+              if (task.exec.code) {
+                const result = run(task);
+                if (result && typeof result.then === "function") {
+                  return result;
                }
+              } else {
+                runTask();
              }
-            },
+            }
+          },
        );
      }
    });
--- a/packages/babel-helper-wrap-function/package.json
+++ b/packages/babel-helper-wrap-function/package.json
@@ -1,14 +1,14 @@
 {
  "name": "@babel/helper-wrap-function",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Helper to wrap functions inside a function call.",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-wrap-function",
  "license": "MIT",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/helper-function-name": "7.0.0-beta.53",
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/helper-function-name": "7.0.0-beta.55",
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helpers/package.json
+++ b/packages/babel-helpers/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/helpers",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Collection of helper functions used by Babel transforms.",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -8,11 +8,11 @@
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-helpers",
  "main": "lib/index.js",
  "dependencies": {
-    "@babel/template": "7.0.0-beta.53",
-    "@babel/traverse": "7.0.0-beta.53",
-    "@babel/types": "7.0.0-beta.53"
+    "@babel/template": "7.0.0-beta.55",
+    "@babel/traverse": "7.0.0-beta.55",
+    "@babel/types": "7.0.0-beta.55"
  },
  "devDependencies": {
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-helpers/src/helpers.js
+++ b/packages/babel-helpers/src/helpers.js
@@ -1016,7 +1016,7 @@ helpers.classPrivateFieldGet = () => template.program.ast`
    if (!privateMap.has(receiver)) {
      throw new TypeError("attempted to get private field on non-instance");
    }
-    return privateMap.get(receiver);
+    return privateMap.get(receiver).value;
  }
 `;

@@ -1025,7 +1025,14 @@ helpers.classPrivateFieldSet = () => template.program.ast`
    if (!privateMap.has(receiver)) {
      throw new TypeError("attempted to set private field on non-instance");
    }
-    privateMap.set(receiver, value);
+    var descriptor = privateMap.get(receiver);
+    if (!descriptor.writable) {
+      // This should only throw in strict mode, but class bodies are
+      // always strict and private fields can only be used inside
+      // class bodies.
+      throw new TypeError("attempted to set read only private field");
+    }
+    descriptor.value = value;
    return value;
  }
 `;
--- a/packages/babel-highlight/package.json
+++ b/packages/babel-highlight/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/highlight",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Syntax highlight JavaScript strings for output in terminals.",
  "author": "suchipi <me@suchipi.com>",
  "homepage": "https://babeljs.io/",
--- a/packages/babel-node/package.json
+++ b/packages/babel-node/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/node",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Babel command line",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -16,11 +16,11 @@
    "compiler"
  ],
  "dependencies": {
-    "@babel/polyfill": "7.0.0-beta.53",
-    "@babel/register": "7.0.0-beta.53",
+    "@babel/polyfill": "7.0.0-beta.55",
+    "@babel/register": "7.0.0-beta.55",
    "commander": "^2.8.1",
    "fs-readdir-recursive": "^1.0.0",
-    "lodash": "^4.17.5",
+    "lodash": "^4.17.10",
    "output-file-sync": "^2.0.0",
    "v8flags": "^3.1.1"
  },
@@ -28,8 +28,8 @@
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-fixtures": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-fixtures": "7.0.0-beta.55"
  },
  "bin": {
    "babel-node": "./bin/babel-node.js"
--- a/packages/babel-parser/package.json
+++ b/packages/babel-parser/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/parser",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "A JavaScript parser",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://babeljs.io/",
@@ -23,7 +23,7 @@
    "node": ">=6.0.0"
  },
  "devDependencies": {
-    "@babel/helper-fixtures": "7.0.0-beta.53",
+    "@babel/helper-fixtures": "7.0.0-beta.55",
    "charcodes": "0.1.0",
    "unicode-11.0.0": "^0.7.7"
  },
--- a/packages/babel-parser/src/parser/expression.js
+++ b/packages/babel-parser/src/parser/expression.js
@@ -563,22 +563,41 @@ export default class ExpressionParser extends LValParser {
      }
      return node;
    } else if (this.match(tt.backQuote)) {
-      const node = this.startNodeAt(startPos, startLoc);
-      node.tag = base;
-      node.quasi = this.parseTemplate(true);
-      if (state.optionalChainMember) {
-        this.raise(
-          startPos,
-          "Tagged Template Literals are not allowed in optionalChain",
-        );
-      }
-      return this.finishNode(node, "TaggedTemplateExpression");
+      return this.parseTaggedTemplateExpression(
+        startPos,
+        startLoc,
+        base,
+        state,
+      );
    } else {
      state.stop = true;
      return base;
    }
  }

+  parseTaggedTemplateExpression(
+    startPos: number,
+    startLoc: Position,
+    base: N.Expression,
+    state: N.ParseSubscriptState,
+    typeArguments?: ?N.TsTypeParameterInstantiation,
+  ): N.TaggedTemplateExpression {
+    const node: N.TaggedTemplateExpression = this.startNodeAt(
+      startPos,
+      startLoc,
+    );
+    node.tag = base;
+    node.quasi = this.parseTemplate(true);
+    if (typeArguments) node.typeParameters = typeArguments;
+    if (state.optionalChainMember) {
+      this.raise(
+        startPos,
+        "Tagged Template Literals are not allowed in optionalChain",
+      );
+    }
+    return this.finishNode(node, "TaggedTemplateExpression");
+  }
+
  atPossibleAsync(base: N.Expression): boolean {
    return (
      !this.state.containsEsc &&
@@ -964,7 +983,7 @@ export default class ExpressionParser extends LValParser {
      } else if (!this.hasPlugin("importMeta")) {
        this.raise(
          id.start,
-          `Dynamic imports require a parameter: import('a.js').then`,
+          `Dynamic imports require a parameter: import('a.js')`,
        );
      }
    }
--- a/packages/babel-parser/src/plugins/flow.js
+++ b/packages/babel-parser/src/plugins/flow.js
@@ -463,7 +463,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
        } while (this.eat(tt.comma));
      }

-      node.body = this.flowParseObjectType(true, false, false, isClass);
+      node.body = this.flowParseObjectType(isClass, false, false, isClass);
    }

    flowParseInterfaceExtends(): N.FlowInterfaceExtends {
@@ -656,7 +656,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
        } while (this.eat(tt.comma));
      }

-      node.body = this.flowParseObjectType(true, false, false, false);
+      node.body = this.flowParseObjectType(false, false, false, false);

      return this.finishNode(node, "InterfaceTypeAnnotation");
    }
--- a/packages/babel-parser/src/plugins/typescript.js
+++ b/packages/babel-parser/src/plugins/typescript.js
@@ -836,16 +836,6 @@ export default (superClass: Class<Parser>): Class<Parser> =>
      return this.finishNode(node, "TSTypeAssertion");
    }

-    tsTryParseTypeArgumentsInExpression(
-      eatNextToken: boolean,
-    ): ?N.TsTypeParameterInstantiation {
-      return this.tsTryParseAndCatch(() => {
-        const res = this.tsParseTypeArguments();
-        if (eatNextToken) this.expect(tt.parenL);
-        return res;
-      });
-    }
-
    tsParseHeritageClause(): $ReadOnlyArray<N.TsExpressionWithTypeArguments> {
      return this.tsParseDelimitedList(
        "HeritageClauseElement",
@@ -1376,38 +1366,53 @@ export default (superClass: Class<Parser>): Class<Parser> =>
        return this.finishNode(nonNullExpression, "TSNonNullExpression");
      }

-      if (!noCalls && this.isRelational("<")) {
-        if (this.atPossibleAsync(base)) {
-          // Almost certainly this is a generic async function `async <T>() => ...
-          // But it might be a call with a type argument `async<T>();`
-          const asyncArrowFn = this.tsTryParseGenericAsyncArrowFunction(
-            startPos,
-            startLoc,
-          );
-          if (asyncArrowFn) {
-            return asyncArrowFn;
+      // There are number of things we are going to "maybe" parse, like type arguments on
+      // tagged template expressions. If any of them fail, walk it back and continue.
+      const result = this.tsTryParseAndCatch(() => {
+        if (this.isRelational("<")) {
+          if (!noCalls && this.atPossibleAsync(base)) {
+            // Almost certainly this is a generic async function `async <T>() => ...
+            // But it might be a call with a type argument `async<T>();`
+            const asyncArrowFn = this.tsTryParseGenericAsyncArrowFunction(
+              startPos,
+              startLoc,
+            );
+            if (asyncArrowFn) {
+              return asyncArrowFn;
+            }
+          }
+
+          const node: N.CallExpression = this.startNodeAt(startPos, startLoc);
+          node.callee = base;
+
+          const typeArguments = this.tsParseTypeArguments();
+
+          if (typeArguments) {
+            if (!noCalls && this.eat(tt.parenL)) {
+              // possibleAsync always false here, because we would have handled it above.
+              // $FlowIgnore (won't be any undefined arguments)
+              node.arguments = this.parseCallExpressionArguments(
+                tt.parenR,
+                /* possibleAsync */ false,
+              );
+              node.typeParameters = typeArguments;
+              return this.finishCallExpression(node);
+            } else if (this.match(tt.backQuote)) {
+              return this.parseTaggedTemplateExpression(
+                startPos,
+                startLoc,
+                base,
+                state,
+                typeArguments,
+              );
+            }
          }
        }

-        const node: N.CallExpression = this.startNodeAt(startPos, startLoc);
-        node.callee = base;
+        this.unexpected();
+      });

-        // May be passing type arguments. But may just be the `<` operator.
-        // Note: With `/*eatNextToken*/ true` this also eats the `(` following the type arguments
-        const typeArguments = this.tsTryParseTypeArgumentsInExpression(
-          /*eatNextToken*/ true,
-        );
-        if (typeArguments) {
-          // possibleAsync always false here, because we would have handled it above.
-          // $FlowIgnore (won't be any undefined arguments)
-          node.arguments = this.parseCallExpressionArguments(
-            tt.parenR,
-            /* possibleAsync */ false,
-          );
-          node.typeParameters = typeArguments;
-          return this.finishCallExpression(node);
-        }
-      }
+      if (result) return result;

      return super.parseSubscript(base, startPos, startLoc, noCalls, state);
    }
@@ -2127,8 +2132,8 @@ export default (superClass: Class<Parser>): Class<Parser> =>
    jsxParseOpeningElementAfterName(
      node: N.JSXOpeningElement,
    ): N.JSXOpeningElement {
-      const typeArguments = this.tsTryParseTypeArgumentsInExpression(
-        /*eatNextToken*/ false,
+      const typeArguments = this.tsTryParseAndCatch(() =>
+        this.tsParseTypeArguments(),
      );
      if (typeArguments) node.typeParameters = typeArguments;
      return super.jsxParseOpeningElementAfterName(node);
--- a/packages/babel-parser/src/types.js
+++ b/packages/babel-parser/src/types.js
@@ -577,6 +577,7 @@ export type TaggedTemplateExpression = NodeBase & {
  type: "TaggedTemplateExpression",
  tag: Expression,
  quasi: TemplateLiteral,
+  typeParameters?: ?TypeParameterInstantiationBase, // TODO: Not in spec
 };

 export type TemplateElement = NodeBase & {
--- a/packages/babel-parser/test/fixtures/experimental/dynamic-import/direct-calls-only/options.json
+++ b/packages/babel-parser/test/fixtures/experimental/dynamic-import/direct-calls-only/options.json
@@ -1,3 +1,3 @@
 {
-  "throws": "Dynamic imports require a parameter: import('a.js').then (2:9)"
+  "throws": "Dynamic imports require a parameter: import('a.js') (2:9)"
 }
--- a/packages/babel-parser/test/fixtures/flow/interface-types/identifier-named-static-method/input.js
+++ b/packages/babel-parser/test/fixtures/flow/interface-types/identifier-named-static-method/input.js
@@ -0,0 +1 @@
+type T = interface { static(): number }
--- a/packages/babel-parser/test/fixtures/flow/interface-types/identifier-named-static-method/output.json
+++ b/packages/babel-parser/test/fixtures/flow/interface-types/identifier-named-static-method/output.json
@@ -0,0 +1,175 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 39,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 39
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 39,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 39
+      }
+    },
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "TypeAlias",
+        "start": 0,
+        "end": 39,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 39
+          }
+        },
+        "id": {
+          "type": "Identifier",
+          "start": 5,
+          "end": 6,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 5
+            },
+            "end": {
+              "line": 1,
+              "column": 6
+            },
+            "identifierName": "T"
+          },
+          "name": "T"
+        },
+        "typeParameters": null,
+        "right": {
+          "type": "InterfaceTypeAnnotation",
+          "start": 9,
+          "end": 39,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 9
+            },
+            "end": {
+              "line": 1,
+              "column": 39
+            }
+          },
+          "extends": [],
+          "body": {
+            "type": "ObjectTypeAnnotation",
+            "start": 19,
+            "end": 39,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 19
+              },
+              "end": {
+                "line": 1,
+                "column": 39
+              }
+            },
+            "callProperties": [],
+            "properties": [
+              {
+                "type": "ObjectTypeProperty",
+                "start": 21,
+                "end": 37,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 21
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 37
+                  }
+                },
+                "key": {
+                  "type": "Identifier",
+                  "start": 21,
+                  "end": 27,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 21
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 27
+                    },
+                    "identifierName": "static"
+                  },
+                  "name": "static"
+                },
+                "static": false,
+                "proto": false,
+                "kind": "init",
+                "method": true,
+                "value": {
+                  "type": "FunctionTypeAnnotation",
+                  "start": 21,
+                  "end": 37,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 21
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 37
+                    }
+                  },
+                  "params": [],
+                  "rest": null,
+                  "typeParameters": null,
+                  "returnType": {
+                    "type": "NumberTypeAnnotation",
+                    "start": 31,
+                    "end": 37,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 31
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 37
+                      }
+                    }
+                  }
+                },
+                "optional": false
+              }
+            ],
+            "indexers": [],
+            "internalSlots": [],
+            "exact": false
+          }
+        }
+      }
+    ],
+    "directives": []
+  }
+}
--- a/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/10/input.js
+++ b/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/10/input.js
@@ -1,5 +1,4 @@
 interface IFoo {
  x: boolean;
  static (): void;
-  static y: boolean;
 }
--- a/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/10/output.json
+++ b/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/10/output.json
@@ -1,28 +1,28 @@
 {
  "type": "File",
  "start": 0,
-  "end": 72,
+  "end": 51,
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
-      "line": 5,
+      "line": 4,
      "column": 1
    }
  },
  "program": {
    "type": "Program",
    "start": 0,
-    "end": 72,
+    "end": 51,
    "loc": {
      "start": {
        "line": 1,
        "column": 0
      },
      "end": {
-        "line": 5,
+        "line": 4,
        "column": 1
      }
    },
@@ -32,14 +32,14 @@
      {
        "type": "InterfaceDeclaration",
        "start": 0,
-        "end": 72,
+        "end": 51,
        "loc": {
          "start": {
            "line": 1,
            "column": 0
          },
          "end": {
-            "line": 5,
+            "line": 4,
            "column": 1
          }
        },
@@ -67,68 +67,18 @@
        "body": {
          "type": "ObjectTypeAnnotation",
          "start": 15,
-          "end": 72,
+          "end": 51,
          "loc": {
            "start": {
              "line": 1,
              "column": 15
            },
            "end": {
-              "line": 5,
+              "line": 4,
              "column": 1
            }
          },
-          "callProperties": [
-            {
-              "type": "ObjectTypeCallProperty",
-              "start": 33,
-              "end": 48,
-              "loc": {
-                "start": {
-                  "line": 3,
-                  "column": 2
-                },
-                "end": {
-                  "line": 3,
-                  "column": 17
-                }
-              },
-              "static": true,
-              "value": {
-                "type": "FunctionTypeAnnotation",
-                "start": 40,
-                "end": 48,
-                "loc": {
-                  "start": {
-                    "line": 3,
-                    "column": 9
-                  },
-                  "end": {
-                    "line": 3,
-                    "column": 17
-                  }
-                },
-                "params": [],
-                "rest": null,
-                "typeParameters": null,
-                "returnType": {
-                  "type": "VoidTypeAnnotation",
-                  "start": 44,
-                  "end": 48,
-                  "loc": {
-                    "start": {
-                      "line": 3,
-                      "column": 13
-                    },
-                    "end": {
-                      "line": 3,
-                      "column": 17
-                    }
-                  }
-                }
-              }
-            }
-          ],
+          "callProperties": [],
          "properties": [
            {
              "type": "ObjectTypeProperty",
@@ -185,55 +135,72 @@
            },
            {
              "type": "ObjectTypeProperty",
-              "start": 52,
-              "end": 69,
+              "start": 33,
+              "end": 48,
              "loc": {
                "start": {
-                  "line": 4,
+                  "line": 3,
                  "column": 2
                },
                "end": {
-                  "line": 4,
-                  "column": 19
+                  "line": 3,
+                  "column": 17
                }
              },
              "key": {
                "type": "Identifier",
-                "start": 59,
-                "end": 60,
+                "start": 33,
+                "end": 39,
                "loc": {
                  "start": {
-                    "line": 4,
-                    "column": 9
+                    "line": 3,
+                    "column": 2
                  },
                  "end": {
-                    "line": 4,
-                    "column": 10
+                    "line": 3,
+                    "column": 8
                  },
-                  "identifierName": "y"
+                  "identifierName": "static"
                },
-                "name": "y"
+                "name": "static"
              },
-              "static": true,
+              "static": false,
              "proto": false,
              "kind": "init",
-              "method": false,
+              "method": true,
              "value": {
-                "type": "BooleanTypeAnnotation",
-                "start": 62,
-                "end": 69,
+                "type": "FunctionTypeAnnotation",
+                "start": 33,
+                "end": 48,
                "loc": {
                  "start": {
-                    "line": 4,
-                    "column": 12
+                    "line": 3,
+                    "column": 2
                  },
                  "end": {
-                    "line": 4,
-                    "column": 19
+                    "line": 3,
+                    "column": 17
+                  }
+                },
+                "params": [],
+                "rest": null,
+                "typeParameters": null,
+                "returnType": {
+                  "type": "VoidTypeAnnotation",
+                  "start": 44,
+                  "end": 48,
+                  "loc": {
+                    "start": {
+                      "line": 3,
+                      "column": 13
+                    },
+                    "end": {
+                      "line": 3,
+                      "column": 17
+                    }
                  }
                }
              },
-              "variance": null,
              "optional": false
            }
          ],
--- a/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/identifier-named-static-method/input.js
+++ b/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/identifier-named-static-method/input.js
@@ -0,0 +1 @@
+interface A { static(): number }
--- a/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/identifier-named-static-method/output.json
+++ b/packages/babel-parser/test/fixtures/flow/interfaces-module-and-script/identifier-named-static-method/output.json
@@ -0,0 +1,162 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 32,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 32
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 32,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 32
+      }
+    },
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "InterfaceDeclaration",
+        "start": 0,
+        "end": 32,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 32
+          }
+        },
+        "id": {
+          "type": "Identifier",
+          "start": 10,
+          "end": 11,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 10
+            },
+            "end": {
+              "line": 1,
+              "column": 11
+            },
+            "identifierName": "A"
+          },
+          "name": "A"
+        },
+        "typeParameters": null,
+        "extends": [],
+        "implements": [],
+        "mixins": [],
+        "body": {
+          "type": "ObjectTypeAnnotation",
+          "start": 12,
+          "end": 32,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 12
+            },
+            "end": {
+              "line": 1,
+              "column": 32
+            }
+          },
+          "callProperties": [],
+          "properties": [
+            {
+              "type": "ObjectTypeProperty",
+              "start": 14,
+              "end": 30,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 14
+                },
+                "end": {
+                  "line": 1,
+                  "column": 30
+                }
+              },
+              "key": {
+                "type": "Identifier",
+                "start": 14,
+                "end": 20,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 14
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 20
+                  },
+                  "identifierName": "static"
+                },
+                "name": "static"
+              },
+              "static": false,
+              "proto": false,
+              "kind": "init",
+              "method": true,
+              "value": {
+                "type": "FunctionTypeAnnotation",
+                "start": 14,
+                "end": 30,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 14
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 30
+                  }
+                },
+                "params": [],
+                "rest": null,
+                "typeParameters": null,
+                "returnType": {
+                  "type": "NumberTypeAnnotation",
+                  "start": 24,
+                  "end": 30,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 24
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 30
+                    }
+                  }
+                }
+              },
+              "optional": false
+            }
+          ],
+          "indexers": [],
+          "internalSlots": [],
+          "exact": false
+        }
+      }
+    ],
+    "directives": []
+  }
+}
--- a/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template-no-asi/input.js
+++ b/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template-no-asi/input.js
@@ -0,0 +1,2 @@
+new C<T>
+``
--- a/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template-no-asi/output.json
+++ b/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template-no-asi/output.json
@@ -0,0 +1,185 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 11,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 2,
+      "column": 2
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 11,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 2,
+        "column": 2
+      }
+    },
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start": 0,
+        "end": 11,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 2,
+            "column": 2
+          }
+        },
+        "expression": {
+          "type": "NewExpression",
+          "start": 0,
+          "end": 11,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 0
+            },
+            "end": {
+              "line": 2,
+              "column": 2
+            }
+          },
+          "callee": {
+            "type": "TaggedTemplateExpression",
+            "start": 4,
+            "end": 11,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 4
+              },
+              "end": {
+                "line": 2,
+                "column": 2
+              }
+            },
+            "tag": {
+              "type": "Identifier",
+              "start": 4,
+              "end": 5,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 4
+                },
+                "end": {
+                  "line": 1,
+                  "column": 5
+                },
+                "identifierName": "C"
+              },
+              "name": "C"
+            },
+            "quasi": {
+              "type": "TemplateLiteral",
+              "start": 9,
+              "end": 11,
+              "loc": {
+                "start": {
+                  "line": 2,
+                  "column": 0
+                },
+                "end": {
+                  "line": 2,
+                  "column": 2
+                }
+              },
+              "expressions": [],
+              "quasis": [
+                {
+                  "type": "TemplateElement",
+                  "start": 10,
+                  "end": 10,
+                  "loc": {
+                    "start": {
+                      "line": 2,
+                      "column": 1
+                    },
+                    "end": {
+                      "line": 2,
+                      "column": 1
+                    }
+                  },
+                  "value": {
+                    "raw": "",
+                    "cooked": ""
+                  },
+                  "tail": true
+                }
+              ]
+            },
+            "typeParameters": {
+              "type": "TSTypeParameterInstantiation",
+              "start": 5,
+              "end": 8,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 5
+                },
+                "end": {
+                  "line": 1,
+                  "column": 8
+                }
+              },
+              "params": [
+                {
+                  "type": "TSTypeReference",
+                  "start": 6,
+                  "end": 7,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 6
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 7
+                    }
+                  },
+                  "typeName": {
+                    "type": "Identifier",
+                    "start": 6,
+                    "end": 7,
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 6
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 7
+                      },
+                      "identifierName": "T"
+                    },
+                    "name": "T"
+                  }
+                }
+              ]
+            }
+          },
+          "arguments": []
+        }
+      }
+    ],
+    "directives": []
+  }
+}
--- a/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template/input.js
+++ b/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template/input.js
@@ -0,0 +1 @@
+f<T>``;
--- a/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template/output.json
+++ b/packages/babel-parser/test/fixtures/typescript/type-arguments/tagged-template/output.json
@@ -0,0 +1,169 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 7,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 7
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 7,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 7
+      }
+    },
+    "sourceType": "module",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start": 0,
+        "end": 7,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 7
+          }
+        },
+        "expression": {
+          "type": "TaggedTemplateExpression",
+          "start": 0,
+          "end": 6,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 0
+            },
+            "end": {
+              "line": 1,
+              "column": 6
+            }
+          },
+          "tag": {
+            "type": "Identifier",
+            "start": 0,
+            "end": 1,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 0
+              },
+              "end": {
+                "line": 1,
+                "column": 1
+              },
+              "identifierName": "f"
+            },
+            "name": "f"
+          },
+          "quasi": {
+            "type": "TemplateLiteral",
+            "start": 4,
+            "end": 6,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 4
+              },
+              "end": {
+                "line": 1,
+                "column": 6
+              }
+            },
+            "expressions": [],
+            "quasis": [
+              {
+                "type": "TemplateElement",
+                "start": 5,
+                "end": 5,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 5
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 5
+                  }
+                },
+                "value": {
+                  "raw": "",
+                  "cooked": ""
+                },
+                "tail": true
+              }
+            ]
+          },
+          "typeParameters": {
+            "type": "TSTypeParameterInstantiation",
+            "start": 1,
+            "end": 4,
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 1
+              },
+              "end": {
+                "line": 1,
+                "column": 4
+              }
+            },
+            "params": [
+              {
+                "type": "TSTypeReference",
+                "start": 2,
+                "end": 3,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 2
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 3
+                  }
+                },
+                "typeName": {
+                  "type": "Identifier",
+                  "start": 2,
+                  "end": 3,
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 2
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 3
+                    },
+                    "identifierName": "T"
+                  },
+                  "name": "T"
+                }
+              }
+            ]
+          }
+        }
+      }
+    ],
+    "directives": []
+  }
+}
--- a/packages/babel-plugin-external-helpers/package.json
+++ b/packages/babel-plugin-external-helpers/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/plugin-external-helpers",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "This plugin contains helper functions that’ll be placed at the top of the generated code",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-external-helpers",
  "license": "MIT",
@@ -9,13 +9,13 @@
    "babel-plugin"
  ],
  "dependencies": {
-    "@babel/helper-plugin-utils": "7.0.0-beta.53"
+    "@babel/helper-plugin-utils": "7.0.0-beta.55"
  },
  "peerDependencies": {
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-plugin-proposal-async-generator-functions/package.json
+++ b/packages/babel-plugin-proposal-async-generator-functions/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/plugin-proposal-async-generator-functions",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "Turn async generator functions into ES2015 generators",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-proposal-async-generator-functions",
  "license": "MIT",
@@ -9,15 +9,15 @@
    "babel-plugin"
  ],
  "dependencies": {
-    "@babel/helper-plugin-utils": "7.0.0-beta.53",
-    "@babel/helper-remap-async-to-generator": "7.0.0-beta.53",
-    "@babel/plugin-syntax-async-generators": "7.0.0-beta.53"
+    "@babel/helper-plugin-utils": "7.0.0-beta.55",
+    "@babel/helper-remap-async-to-generator": "7.0.0-beta.55",
+    "@babel/plugin-syntax-async-generators": "7.0.0-beta.55"
  },
  "peerDependencies": {
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-plugin-proposal-class-properties/package.json
+++ b/packages/babel-plugin-proposal-class-properties/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@babel/plugin-proposal-class-properties",
-  "version": "7.0.0-beta.53",
+  "version": "7.0.0-beta.55",
  "description": "This plugin transforms static class properties as well as properties declared with the property initializer syntax",
  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-proposal-class-properties",
  "license": "MIT",
@@ -9,18 +9,18 @@
    "babel-plugin"
  ],
  "dependencies": {
-    "@babel/helper-function-name": "7.0.0-beta.53",
-    "@babel/helper-member-expression-to-functions": "7.0.0-beta.53",
-    "@babel/helper-optimise-call-expression": "7.0.0-beta.53",
-    "@babel/helper-plugin-utils": "7.0.0-beta.53",
-    "@babel/helper-replace-supers": "7.0.0-beta.53",
-    "@babel/plugin-syntax-class-properties": "7.0.0-beta.53"
+    "@babel/helper-function-name": "7.0.0-beta.55",
+    "@babel/helper-member-expression-to-functions": "7.0.0-beta.55",
+    "@babel/helper-optimise-call-expression": "7.0.0-beta.55",
+    "@babel/helper-plugin-utils": "7.0.0-beta.55",
+    "@babel/helper-replace-supers": "7.0.0-beta.55",
+    "@babel/plugin-syntax-class-properties": "7.0.0-beta.55"
  },
  "peerDependencies": {
    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
  },
  "devDependencies": {
-    "@babel/core": "7.0.0-beta.53",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.53"
+    "@babel/core": "7.0.0-beta.55",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.55"
  }
 }
--- a/packages/babel-plugin-proposal-class-properties/src/index.js
+++ b/packages/babel-plugin-proposal-class-properties/src/index.js
@@ -201,7 +201,14 @@ export default declare((api, options) => {

    // Must be late evaluated in case it references another private field.
    return () =>
-      template.statement`MAP.set(REF, VALUE);`({
+      template.statement`
+        MAP.set(REF, {
+          // configurable is always false for private elements
+          // enumerable is always false for private elements
+          writable: true,
+          value: VALUE
+        });
+      `({
        MAP: map,
        REF: ref,
        VALUE: path.node.value || scope.buildUndefinedNode(),
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Henry Zhu	adca165ee9	v7.0.0-beta.55	2018-07-28 18:06:42 -04:00
Henry Zhu	fa86b2ddf0	Remove our own use of stage presets (#8397 ) - also update the stage preset error message/readme's to point to the new blog post	2018-07-28 11:24:53 -04:00
Logan Smyth	5eb193c61f	Ensure that Identifier source mappings explicitly start and stop on the generated range (#8380 ) * Add sourcemap examples for identifiers in code generator. * Generate sourcemaps with exact mappings for identifiers, even if leading/trailing tokens also use that location.	2018-07-27 16:27:33 -04:00
Nicolò Ribaudo	ec69b4bb12	Save full descriptor instead of only value for private fields. (#8318 ) * Save full descriptor instead of only value for private fields. Decorators can make private fields non-writable, so we need to store this information somewhere. The descriptor can also be used to implement private accessors.	2018-07-27 16:24:57 -04:00
Brian Ng	5fdcd29ef9	Ensure preset-env doesn't clobber browserslist defaults (#8391 )	2018-07-26 15:22:26 -04:00
Andy	8ee24fdfc0	TypeScript: Support type arguments on tagged templates (#7754 ) \| Q \| A \| ------------------------ \| --- \| Fixed Issues? \| #7747 (partly) \| Patch: Bug Fix? \| \| Major: Breaking Change? \| \| Minor: New Feature? \| Yes \| Tests Added + Pass? \| Yes \| Documentation PR \| \| Any Dependency Changes? \| \| License \| MIT @JamesHenry This changes the AST format. CC @DanielRosenwasser for review. Supports parsing type arguments on tagged template calls. Should wait on Microsoft/TypeScript#23430 to be merged so we're sure we have the final syntax.	2018-07-26 10:44:43 -05:00
Qix	db2a9fc96e	Fix order of optional argument reordering (#8376 ) Previously, if the optional `opts` parameter wasn't passed, the _intent_ was to move the function it held into the `callback` parameter and null out the `opts` param - but instead, it was nulling both.	2018-07-26 11:25:35 -04:00
Sven Sauleau	75767e9273	Merge pull request #8381 from wtgtybhertgeghgtwtg/babelrcroots-array Allow an Array for `babelrcRoots`.	2018-07-25 11:36:57 +02:00
wtgtybhertgeghgtwtg	4346a95b88	Perform check on each member of `babelrcroots`.	2018-07-24 16:57:24 -07:00
Maximilian Berkmann	26cbbb569f	Bumped lodash to 4.17.10 (#8377 )	2018-07-24 12:57:43 -04:00
Kevin Gibbons	a811cf78e1	Correctly parse interface methods named 'static' (#8374 )	2018-07-24 09:25:55 +02:00
Henry Zhu	c70a32ab9d	Throw when using Stage presets (#8293 ) * inline stage presets into standalone, throw error with using Stage presets	2018-07-23 22:22:52 -04:00
Thiago Arrais	6f3a800677	Do not mutate ast (#8342 ) This clones the given ast prior to working on it to avoid mutating the AST given to `transformFromAST`.	2018-07-23 22:20:55 -04:00
Kevin Gibbons	d781e207c8	Docs: fix typo in path (#8372 ) [skip ci]	2018-07-23 20:32:44 -04:00
dnalborczyk	8b10a44fe1	remove .then from dynamic import parser exception message (#8355 )	2018-07-21 08:26:17 +02:00
dnalborczyk	adae1501ac	update jest (major), babel-jest (major) (#8341 ) updated `jest` and `babel-jest` to `v23` fixed breaking change in `jest`: - https://github.com/facebook/jest/blob/master/CHANGELOG.md#2300 - https://github.com/facebook/jest/pull/5558 _edit:_ forgot to mention. test runner fix is based on: https://github.com/babel/babel/blob/master/packages/babel-parser/test/helpers/runFixtureTests.js#L11	2018-07-19 10:43:35 -04:00
dnalborczyk	c8038f69fe	update prettier (#8339 )	2018-07-19 09:08:45 -05:00
dnalborczyk	30ea328e97	bump flow (#8338 )	2018-07-19 09:41:09 -04:00
dnalborczyk	16b1f8c427	updates eslint, babel-eslint, eslint-plugin-flowtype, eslint-plugin-prettier (#8337 )	2018-07-19 09:36:52 -04:00
Henry Zhu	a582cc5bd8	update changelog for .53/.54 [skip ci]	2018-07-18 08:54:05 -04:00
Henry Zhu	84282f199b	v7.0.0-beta.54	2018-07-16 13:59:43 -04:00
Logan Smyth	52a569056c	Merge pull request #8327 from loganfsmyth/drop-pattern-matching Treat string ignore/only/test/include/exclude values as paths with only basic pattern matching	2018-07-16 10:11:23 -07:00
Henry Zhu	7446d06911	also default stage 2 to decoratorsLegacy true [skip ci]	2018-07-16 13:07:17 -04:00
James DiGioia	8817fcf03e	Fix stage-0/1 import of pipeline/decorators proposals (#8317 ) Just default to pipeline "minimal" and true for decorators for ease of use. We are going to remove the stage presets next so it's fine since it will error when using the plugin individually later.	2018-07-16 13:02:54 -04:00
Logan Smyth	6d177ba4c5	Remove micromatch and use a simple pattern matching utility.	2018-07-16 09:57:14 -07:00
Logan Smyth	935533cff3	Ensure that the wildcard interop is used with re-export + default. (#8316 )	2018-07-14 12:49:31 -07:00
Logan Smyth	c4f67bfa57	Leave it to users to clear the require cache if they want to.	2018-07-14 12:48:58 -07:00
Logan Smyth	2854a187be	Remove dependency on barely-used package.	2018-07-14 12:41:36 -07:00
rugk	62ee1adc85	Add link to audio version of song (#8320 )	2018-07-13 15:34:40 -05:00
Logan Smyth	fd9ebf9e1d	Remove option-filtering options from the final options results. (#8315 ) \| Q \| A <!--(Can use an emoji 👍) --> \| ------------------------ \| --- \| Fixed Issues? \| Fixes https://github.com/babel/babel-loader/issues/642 \| Patch: Bug Fix? \| Y \| Major: Breaking Change? \| N \| Minor: New Feature? \| \| Tests Added + Pass? \| Yes \| Documentation PR Link \| <!-- If only readme change, add `[skip ci]` to your commits --> \| Any Dependency Changes? \| \| License \| MIT Since these were getting left in, things that loaded the config, and then passed in back to Babel would get `test` and such _twice_, which could lead to either bad configuration merging, or no configuration at all if the patterns were relative to different directories, as was the case in https://github.com/babel/babel-loader/issues/642.	2018-07-13 07:01:11 -07:00
Daniel Tschinder	dca6125128	Update pirates to 4.0 (#8308 )	2018-07-11 16:04:27 -04:00
Henry Zhu	093483c399	remove yearly preset folders [skip ci]	2018-07-11 11:08:33 -04:00