Fix props that where not assigned to the right component (fixes #591)

lib/util/Components.js

@@ -90,6 +90,10 @@ Components.prototype.list = function() {
     node = this._list[i].node;
     while (!component && node.parent) {
       node = node.parent;
+      // Stop moving up if we reach a decorator
+      if (node.type === 'Decorator') {
+        break;
+      }
       component = this.get(node);
     }
     if (component) {
@@ -270,9 +274,15 @@ function componentRule(rule, context) {
       var scope = context.getScope();
       while (scope) {
         var node = scope.block;
+        var isClass = node.type === 'ClassExpression';
         var isFunction = /Function/.test(node.type); // Ignore non functions
         var isNotMethod = !node.parent || node.parent.type !== 'MethodDefinition'; // Ignore classes methods
         var isNotArgument = !node.parent || node.parent.type !== 'CallExpression'; // Ignore arguments (callback, etc.)
+        // Stop moving up if we reach a class
+        if (isClass) {
+          return null;
+        }
+        // Return the node if it is a function that is not a class method or an argument (like a callback)
         if (isFunction && isNotMethod && isNotArgument) {
           return node;
         }

tests/lib/rules/prop-types.js

@@ -1206,6 +1206,23 @@ ruleTester.run('prop-types', rule, {
         '}'
       ].join('\n'),
       parser: 'babel-eslint'
+    }, {
+      // Should stop at the class when searching for a parent component
+      code: [
+        'export default (ComposedComponent) => class Something extends SomeOtherComponent {',
+        '  someMethod = ({width}) => {}',
+        '}'
+      ].join('\n'),
+      parser: 'babel-eslint'
+    }, {
+      // Should stop at the decorator when searching for a parent component
+      code: [
+        '@asyncConnect([{',
+        '  promise: ({dispatch}) => {}',
+        '}])',
+        'class Something extends Component {}'
+      ].join('\n'),
+      parser: 'babel-eslint'
     }
   ],