Support destructuring and aliased imports in react builtin call detection

src/utils/__tests__/isReactCloneElementCall-test.js

@@ -0,0 +1,83 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import { parse } from '../../../tests/utils';
+import isReactCloneElementCall from '../isReactCloneElementCall';
+
+describe('isReactCloneElementCall', () => {
+  function parsePath(src) {
+    const root = parse(src);
+    return root.get('body', root.node.body.length - 1, 'expression');
+  }
+
+  describe('built in React.createClass', () => {
+    it('accepts cloneElement called on React', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.cloneElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+
+    it('accepts cloneElement called on aliased React', () => {
+      const def = parsePath(`
+        var other = require("React");
+        other.cloneElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+
+    it('ignores other React calls', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.isValidElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(false);
+    });
+
+    it('ignores non React calls to cloneElement', () => {
+      const def = parsePath(`
+        var React = require("bob");
+        React.cloneElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(false);
+    });
+
+    it('accepts cloneElement called on destructed value', () => {
+      const def = parsePath(`
+        var { cloneElement } = require("react");
+        cloneElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+
+    it('accepts cloneElement called on destructed aliased value', () => {
+      const def = parsePath(`
+        var { cloneElement: foo } = require("react");
+        foo({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+
+    it('accepts cloneElement called on imported value', () => {
+      const def = parsePath(`
+        import { cloneElement } from "react";
+        cloneElement({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+
+    it('accepts cloneElement called on imported aliased value', () => {
+      const def = parsePath(`
+        import { cloneElement as foo } from "react";
+        foo({});
+      `);
+      expect(isReactCloneElementCall(def)).toBe(true);
+    });
+  });
+});

src/utils/__tests__/isReactCreateClassCall-test.js

@@ -53,6 +53,38 @@ describe('isReactCreateClassCall', () => {
       `);
       expect(isReactCreateClassCall(def)).toBe(false);
     });
+
+    it('accepts createClass called on destructed value', () => {
+      const def = parsePath(`
+        var { createClass } = require("react");
+        createClass({});
+      `);
+      expect(isReactCreateClassCall(def)).toBe(true);
+    });
+
+    it('accepts createClass called on destructed aliased value', () => {
+      const def = parsePath(`
+        var { createClass: foo } = require("react");
+        foo({});
+      `);
+      expect(isReactCreateClassCall(def)).toBe(true);
+    });
+
+    it('accepts createClass called on imported value', () => {
+      const def = parsePath(`
+        import { createClass } from "react";
+        createClass({});
+      `);
+      expect(isReactCreateClassCall(def)).toBe(true);
+    });
+
+    it('accepts createClass called on imported aliased value', () => {
+      const def = parsePath(`
+        import { createClass as foo } from "react";
+        foo({});
+      `);
+      expect(isReactCreateClassCall(def)).toBe(true);
+    });
   });
 
   describe('modular in create-react-class', () => {

src/utils/__tests__/isReactCreateElementCall-test.js

@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import { parse } from '../../../tests/utils';
+import isReactCreateElementCall from '../isReactCreateElementCall';
+
+describe('isReactCreateElementCall', () => {
+  function parsePath(src) {
+    const root = parse(src);
+    return root.get('body', root.node.body.length - 1, 'expression');
+  }
+
+  describe('built in React.createElement', () => {
+    it('accepts createElement called on React', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.createElement({
+          render() {}
+        });
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+
+    it('accepts createElement called on aliased React', () => {
+      const def = parsePath(`
+        var other = require("React");
+        other.createElement({
+          render() {}
+        });
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+
+    it('ignores other React calls', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.isValidElement({});
+      `);
+      expect(isReactCreateElementCall(def)).toBe(false);
+    });
+
+    it('ignores non React calls to createElement', () => {
+      const def = parsePath(`
+        var React = require("bob");
+        React.createElement({
+          render() {}
+        });
+      `);
+      expect(isReactCreateElementCall(def)).toBe(false);
+    });
+
+    it('accepts createElement called on destructed value', () => {
+      const def = parsePath(`
+        var { createElement } = require("react");
+        createElement({});
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+
+    it('accepts createElement called on destructed aliased value', () => {
+      const def = parsePath(`
+        var { createElement: foo } = require("react");
+        foo({});
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+
+    it('accepts createElement called on imported value', () => {
+      const def = parsePath(`
+        import { createElement } from "react";
+        createElement({});
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+
+    it('accepts createElement called on imported aliased value', () => {
+      const def = parsePath(`
+        import { createElement as foo } from "react";
+        foo({});
+      `);
+      expect(isReactCreateElementCall(def)).toBe(true);
+    });
+  });
+});

src/utils/__tests__/isReactForwardRefCall-test.js

@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import { parse } from '../../../tests/utils';
+import isReactForwardRefCall from '../isReactForwardRefCall';
+
+describe('isReactForwardRefCall', () => {
+  function parsePath(src) {
+    const root = parse(src);
+    return root.get('body', root.node.body.length - 1, 'expression');
+  }
+
+  describe('built in React.forwardRef', () => {
+    it('accepts forwardRef called on React', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.forwardRef({
+          render() {}
+        });
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+
+    it('accepts forwardRef called on aliased React', () => {
+      const def = parsePath(`
+        var other = require("React");
+        other.forwardRef({
+          render() {}
+        });
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+
+    it('ignores other React calls', () => {
+      const def = parsePath(`
+        var React = require("React");
+        React.isValidElement({});
+      `);
+      expect(isReactForwardRefCall(def)).toBe(false);
+    });
+
+    it('ignores non React calls to forwardRef', () => {
+      const def = parsePath(`
+        var React = require("bob");
+        React.forwardRef({
+          render() {}
+        });
+      `);
+      expect(isReactForwardRefCall(def)).toBe(false);
+    });
+
+    it('accepts forwardRef called on destructed value', () => {
+      const def = parsePath(`
+        var { forwardRef } = require("react");
+        forwardRef({});
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+
+    it('accepts forwardRef called on destructed aliased value', () => {
+      const def = parsePath(`
+        var { forwardRef: foo } = require("react");
+        foo({});
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+
+    it('accepts forwardRef called on imported value', () => {
+      const def = parsePath(`
+        import { forwardRef } from "react";
+        forwardRef({});
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+
+    it('accepts forwardRef called on imported aliased value', () => {
+      const def = parsePath(`
+        import { forwardRef as foo } from "react";
+        foo({});
+      `);
+      expect(isReactForwardRefCall(def)).toBe(true);
+    });
+  });
+});

src/utils/isReactBuiltinCall.js

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ */
+
+import types from 'ast-types';
+import isReactModuleName from './isReactModuleName';
+import match from './match';
+import resolveToModule from './resolveToModule';
+import resolveToValue from './resolveToValue';
+
+const { namedTypes: t } = types;
+
+/**
+ * Returns true if the expression is a function call of the form
+ * `React.foo(...)`.
+ */
+export default function isReactBuiltinCall(
+  path: NodePath,
+  name: string,
+): boolean {
+  if (t.ExpressionStatement.check(path.node)) {
+    path = path.get('expression');
+  }
+
+  if (match(path.node, { callee: { property: { name } } })) {
+    const module = resolveToModule(path.get('callee', 'object'));
+    return Boolean(module && isReactModuleName(module));
+  }
+
+  if (t.CallExpression.check(path.node)) {
+    const value = resolveToValue(path.get('callee'));
+    if (value === path.get('callee')) return false;
+
+    if (
+      // `require('react').createElement`
+      (t.MemberExpression.check(value.node) &&
+        t.Identifier.check(value.get('property').node) &&
+        value.get('property').node.name === name) ||
+      // `import { createElement } from 'react'`
+      (t.ImportDeclaration.check(value.node) &&
+        value.node.specifiers.some(
+          specifier => specifier.imported && specifier.imported.name === name,
+        ))
+    ) {
+      const module = resolveToModule(value);
+      return Boolean(module && isReactModuleName(module));
+    }
+  }
+
+  return false;
+}

src/utils/isReactCloneElementCall.js

@@ -7,25 +7,12 @@
  * @flow
  */
 
-import types from 'ast-types';
-import isReactModuleName from './isReactModuleName';
-import match from './match';
-import resolveToModule from './resolveToModule';
-
-const { namedTypes: t } = types;
+import isReactBuiltinCall from './isReactBuiltinCall';
 
 /**
  * Returns true if the expression is a function call of the form
- * `React.createElement(...)`.
+ * `React.cloneElement(...)`.
  */
 export default function isReactCloneElementCall(path: NodePath): boolean {
-  if (t.ExpressionStatement.check(path.node)) {
-    path = path.get('expression');
-  }
-
-  if (!match(path.node, { callee: { property: { name: 'cloneElement' } } })) {
-    return false;
-  }
-  const module = resolveToModule(path.get('callee', 'object'));
-  return Boolean(module && isReactModuleName(module));
+  return isReactBuiltinCall(path, 'cloneElement');
 }