Add helpers: false option to babel-plugin-transform-runtime (#3603)

packages/babel-plugin-transform-runtime/src/index.js

@@ -11,11 +11,13 @@ export default function ({ types: t }) {
 
   return {
     pre(file) {
-      file.set("helperGenerator", function (name) {
-        if (HELPER_BLACKLIST.indexOf(name) < 0) {
-          return file.addImport(`${RUNTIME_MODULE_NAME}/helpers/${name}`, "default", name);
-        }
-      });
+      if (this.opts.helpers !== false) {
+        file.set("helperGenerator", function (name) {
+          if (HELPER_BLACKLIST.indexOf(name) < 0) {
+            return file.addImport(`${RUNTIME_MODULE_NAME}/helpers/${name}`, "default", name);
+          }
+        });
+      }
 
       this.setDynamic("regeneratorIdentifier", function () {
         return file.addImport(`${RUNTIME_MODULE_NAME}/regenerator`, "default", "regeneratorRuntime");

packages/babel-plugin-transform-runtime/test/fixtures/runtime/catch-all/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-runtime", "transform-regenerator"]
+}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/full/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-runtime", "transform-regenerator"]
+}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/no-helpers/actual.js

@@ -0,0 +1 @@
+class Foo {}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/no-helpers/expected.js

@@ -0,0 +1,5 @@
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+let Foo = function Foo() {
+  _classCallCheck(this, Foo);
+};

packages/babel-plugin-transform-runtime/test/fixtures/runtime/no-helpers/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": [["transform-runtime", { "helpers": false }], "transform-es2015-classes"]
+}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/regenerator-runtime/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-runtime", "transform-regenerator"]
+}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/symbol-iterator-in/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-runtime", "transform-regenerator"]
+}

packages/babel-plugin-transform-runtime/test/fixtures/runtime/symbol-iterator/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-runtime", "transform-regenerator"]
+}