Dev (#425)

.eslintrc

@@ -10,7 +10,8 @@
   "rules": {
     "brace-style": "off",
     "comma-dangle": ["warn", "always-multiline"],
-    "indent": "off"
+    "indent": "off",
+    "require-atomic-updates": "off"
   },
   "settings": {
     "react": {

lint-staged.config.js

@@ -1,7 +1,4 @@
 module.exports = {
-	linters: {
-		'{src,test}/**/*.js': ['eslint --fix', 'git add'],
-		'*.md': ['prettier --write', 'git add'],
-	},
-	ignore: ['**/dist/**/*.js'],
+	'{src,test}/**/*.js': [`eslint --fix`, `git add`],
+	'*.md': ['prettier --write', 'git add'],
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "microbundle",
-  "version": "0.12.0-next.1",
+  "version": "0.12.0-next.3",
   "description": "Zero-configuration bundler for tiny JS libs, powered by Rollup.",
   "main": "dist/microbundle.js",
   "source": "src/index.js",
@@ -42,15 +42,15 @@
   "author": "Jason Miller <jason@developit.ca> (http://jasonformat.com)",
   "license": "MIT",
   "dependencies": {
-    "@babel/core": "^7.4.5",
-    "@babel/plugin-proposal-class-properties": "7.4.4",
+    "@babel/core": "^7.5.4",
+    "@babel/plugin-proposal-class-properties": "7.5.0",
     "@babel/plugin-syntax-jsx": "^7.2.0",
     "@babel/plugin-transform-flow-strip-types": "^7.4.4",
     "@babel/plugin-transform-react-jsx": "^7.3.0",
-    "@babel/polyfill": "^7.4.4",
+    "@babel/preset-env": "^7.5.4",
     "@babel/preset-flow": "^7.0.0",
     "asyncro": "^3.0.0",
-    "autoprefixer": "^9.6.0",
+    "autoprefixer": "^9.6.1",
     "babel-plugin-macros": "^2.4.2",
     "babel-plugin-transform-async-to-promises": "^0.8.12",
     "babel-plugin-transform-replace-expressions": "^0.2.0",
@@ -64,46 +64,43 @@
     "lodash.merge": "^4.6.1",
     "module-details-from-path": "^1.0.3",
     "pretty-bytes": "^5.2.0",
-    "rollup": "^1.15.1",
+    "rollup": "^1.16.7",
     "rollup-plugin-alias": "^1.5.2",
-    "rollup-plugin-babel": "^4.3.2",
+    "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-bundle-size": "^1.0.1",
-    "rollup-plugin-commonjs": "^10.0.0",
+    "rollup-plugin-commonjs": "^10.0.1",
     "rollup-plugin-es3": "^1.1.0",
     "rollup-plugin-json": "^4.0.0",
-    "rollup-plugin-node-resolve": "^5.0.1",
+    "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-postcss": "^2.0.3",
-    "rollup-plugin-terser": "^5.0.0",
-    "rollup-plugin-typescript2": "^0.21.1",
-    "sade": "^1.5.0",
+    "rollup-plugin-terser": "^5.1.1",
+    "rollup-plugin-typescript2": "^0.21.2",
+    "sade": "^1.6.0",
     "tiny-glob": "^0.2.6",
     "tslib": "^1.10.0",
-    "typescript": "^3.5.1"
+    "typescript": "^3.5.3"
   },
   "devDependencies": {
-    "@babel/cli": "^7.4.4",
-    "@babel/node": "^7.4.5",
+    "@babel/cli": "^7.5.0",
+    "@babel/node": "^7.5.0",
     "@babel/plugin-proposal-throw-expressions": "^7.2.0",
-    "@babel/preset-env": "^7.4.5",
-    "babel-core": "^7.0.0-bridge.0",
     "babel-jest": "^24.8.0",
-    "core-js": "3.1.3",
     "cross-env": "^5.2.0",
     "directory-tree": "^2.2.3",
-    "eslint": "^5.16.0",
+    "eslint": "^6.0.1",
     "eslint-config-developit": "^1.1.1",
-    "eslint-config-prettier": "^4.3.0",
+    "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-prettier": "^3.1.0",
     "esm": "^3.2.22",
-    "fs-extra": "^8.0.1",
-    "husky": "^2.4.0",
+    "fs-extra": "^8.1.0",
+    "husky": "^3.0.0",
     "jest": "^24.8.0",
-    "lint-staged": "^8.2.0",
+    "lint-staged": "^9.1.0",
     "prettier": "^1.18.2",
     "regenerator-runtime": "^0.13.2",
     "rimraf": "^2.6.3",
     "shell-quote": "^1.6.1",
     "strip-ansi": "^5.2.0",
-    "travis-size-report": "^1.0.1"
+    "travis-size-report": "^1.1.0"
   }
 }

src/lib/babel-custom.js

@@ -102,6 +102,7 @@ export default babelPlugin.custom(babelCore => {
 							merge(
 								{
 									loose: true,
+									useBuiltIns: false,
 									targets: customOptions.targets,
 								},
 								preset.options,
@@ -129,6 +130,7 @@ export default babelPlugin.custom(babelCore => {
 							: customOptions.targets,
 						modules: false,
 						loose: true,
+						useBuiltIns: false,
 						exclude: ['transform-async-to-generator', 'transform-regenerator'],
 					},
 				]);

test/fixtures/pure/package.json

@@ -0,0 +1,3 @@
+{
+  "name": "pure"
+}

test/fixtures/pure/src/index.js

@@ -0,0 +1,6 @@
+// this is currently broken because of a bug in terser
+// https://github.com/terser-js/terser/issues/353
+/** @__PURE__ */
+export function foo() {
+	return 'hello world';
+}