feat(reflect): add polyfill for defineProperty

aurelia · Apr 20, 2016 · c6fbc90 · c6fbc90
1 parent c2c98c0
commit c6fbc90
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/src/reflect.js b/src/reflect.js
@@ -32,6 +32,20 @@ if (typeof Reflect.metadata !== 'function') {
   };
 }
 
+if (typeof Reflect.defineProperty !== 'function') {
+  Reflect.defineProperty = function(target, propertyKey, descriptor) {
+    if (typeof target !== 'object') {
+      throw new TypeError('Reflect.defineProperty called on non-object');
+    }
+    try {
+      Object.defineProperty(target, propertyKey, descriptor);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  };
+}
+
 if (typeof Reflect.construct !== 'function') {
   Reflect.construct = function(Target, args) {
     if (args) {
@@ -48,4 +62,4 @@ if (typeof Reflect.construct !== 'function') {
     a.push.apply(a, args);
     return new (bind.apply(Target, a));
   };
-}
+}