Fix bind detection in render when assigned to a variable (fixes jsx-eslint#474)

Author: petersendidit

lib/rules/jsx-no-bind.js

@@ -13,6 +13,31 @@ module.exports = function(context) {
   var configuration = context.options[0] || {};
 
   return {
+    CallExpression: function(node) {
+      var callee = node.callee;
+      if (
+        !configuration.allowBind &&
+        callee.type !== 'MemberExpression' ||
+        callee.property.name !== 'bind'
+      ) {
+        return;
+      }
+      var ancestors = context.getAncestors(callee).reverse();
+      for (var i = 0, j = ancestors.length; i < j; i++) {
+        if (
+          !configuration.allowBind &&
+          (ancestors[i].type === 'MethodDefinition' && ancestors[i].key.name === 'render') ||
+          (ancestors[i].type === 'Property' && ancestors[i].key.name === 'render')
+        ) {
+          context.report({
+            node: callee,
+            message: 'JSX props should not use .bind()'
+          });
+          break;
+        }
+      }
+    },
+
     JSXAttribute: function(node) {
       var isRef = configuration.ignoreRefs && node.name.name === 'ref';
       if (isRef || !node.value || !node.value.expression) {

tests/lib/rules/jsx-no-bind.js

@@ -83,6 +83,30 @@ ruleTester.run('jsx-no-bind', rule, {
       errors: [{message: 'JSX props should not use .bind()'}],
       parser: 'babel-eslint'
     },
+    {
+      code: [
+        'var Hello = React.createClass({',
+        '  render: function() {',
+        '    const click = this.someMethod.bind(this);',
+        '    return <div onClick={click}>Hello {this.state.name}</div>;',
+        '  }',
+        '});'
+      ].join('\n'),
+      errors: [{message: 'JSX props should not use .bind()'}],
+      parser: 'babel-eslint'
+    },
+    {
+      code: [
+        'class Hello23 extends React.Component {',
+        '  render() {',
+        '    const click = this.someMethod.bind(this);',
+        '    return <div onClick={click}>Hello {this.state.name}</div>;',
+        '  }',
+        '};'
+      ].join('\n'),
+      errors: [{message: 'JSX props should not use .bind()'}],
+      parser: 'babel-eslint'
+    },
 
     // Arrow functions
     {