proper feature call isLoose function #9424

packages/babel-helper-create-class-features-plugin/src/index.js

@@ -54,9 +54,7 @@ export function createClassFeaturePlugin({
 
         verifyUsedFeatures(path, this.file);
 
-        // Only fields are currently supported, this needs to be moved somewhere
-        // else when other features are added.
-        const loose = isLoose(this.file, FEATURES.fields);
+        const loose = isLoose(this.file, feature);
 
         let constructor;
         let isDecorated = hasOwnDecorators(path.node);

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-false/input.js

@@ -0,0 +1,5 @@
+class X {
+  #privateMethod() {
+    return 42;
+  }
+}

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-false/options.json

@@ -0,0 +1,5 @@
+{
+  "plugins": [
+    ["proposal-private-methods", { "loose": false }]
+  ]
+}

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-false/output.js

@@ -0,0 +1,12 @@
+class X {
+  constructor() {
+    _privateMethod.add(this);
+  }
+
+}
+
+var _privateMethod = new WeakSet();
+
+var _privateMethod2 = function _privateMethod2() {
+  return 42;
+};

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-true/input.js

@@ -0,0 +1,5 @@
+class X {
+  #privateMethod() {
+    return 42;
+  }
+}

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-true/options.json

@@ -0,0 +1,5 @@
+{
+  "plugins": [
+    ["proposal-private-methods", { "loose": true }]
+  ]
+}

packages/babel-helper-create-class-features-plugin/test/fixtures/plugin-proposal-private-methods/loose-true/output.js

@@ -0,0 +1,18 @@
+var id = 0;
+
+function _classPrivateFieldLooseKey(name) { return "__private_" + id++ + "_" + name; }
+
+class X {
+  constructor() {
+    Object.defineProperty(this, _privateMethod, {
+      value: _privateMethod2
+    });
+  }
+
+}
+
+var _privateMethod = _classPrivateFieldLooseKey("privateMethod");
+
+var _privateMethod2 = function _privateMethod2() {
+  return 42;
+};