ES6: Add support for super in object literals

test/mjsunit/harmony/object-literals-super.js

+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-classes --allow-natives-syntax
+
+
+(function TestHomeObject() {
+  var object = {
+    method() {
+      return super.method();
+    },
+    get getter() {
+      return super.getter;
+    },
+    set setter(v) {
+      super.setter = v;
+    },
+    get accessor() {
+      return super.accessor;
+    },
+    set accessor(v) {
+      super.accessor = v;
+    },
+    property: function() {
+      super.property();
+    },
+    propertyWithParen: (function() {
+      super.property();
+    }),
+    propertyWithParens: ((function() {
+      super.property();
+    })),
+
+    methodNoSuper() {},
+    get getterNoSuper() {},
+    set setterNoSuper(v) {},
+    get accessorNoSuper() {},
+    set accessorNoSuper(v) {},
+    propertyNoSuper: function() {},
+    propertyWithParenNoSuper: (function() {}),
+    propertyWithParensNoSuper: ((function() {}))
+  };
+
+  assertEquals(object, object.method[%HomeObjectSymbol()]);
+  var desc = Object.getOwnPropertyDescriptor(object, 'getter');
+  assertEquals(object, desc.get[%HomeObjectSymbol()]);
+  desc = Object.getOwnPropertyDescriptor(object, 'setter');
+  assertEquals(object, desc.set[%HomeObjectSymbol()]);
+  desc = Object.getOwnPropertyDescriptor(object, 'accessor');
+  assertEquals(object, desc.get[%HomeObjectSymbol()]);
+  assertEquals(object, desc.set[%HomeObjectSymbol()]);
+  assertEquals(object, object.property[%HomeObjectSymbol()]);
+  assertEquals(object, object.propertyWithParen[%HomeObjectSymbol()]);
+  assertEquals(object, object.propertyWithParens[%HomeObjectSymbol()]);
+
+  assertEquals(undefined, object.methodNoSuper[%HomeObjectSymbol()]);
+  desc = Object.getOwnPropertyDescriptor(object, 'getterNoSuper');
+  assertEquals(undefined, desc.get[%HomeObjectSymbol()]);
+  desc = Object.getOwnPropertyDescriptor(object, 'setterNoSuper');
+  assertEquals(undefined, desc.set[%HomeObjectSymbol()]);
+  desc = Object.getOwnPropertyDescriptor(object, 'accessorNoSuper');
+  assertEquals(undefined, desc.get[%HomeObjectSymbol()]);
+  assertEquals(undefined, desc.set[%HomeObjectSymbol()]);
+  assertEquals(undefined, object.propertyNoSuper[%HomeObjectSymbol()]);
+  assertEquals(undefined, object.propertyWithParenNoSuper[%HomeObjectSymbol()]);
+  assertEquals(undefined,
+               object.propertyWithParensNoSuper[%HomeObjectSymbol()]);
+})();
+
+
+(function TestMethod() {
+  var object = {
+    __proto__: {
+      method(x) {
+        return 'proto' + x;
+      }
+    },
+    method(x) {
+      return super.method(x);
+    }
+  };
+  assertEquals('proto42', object.method(42));
+})();
+
+
+(function TestGetter() {
+  var object = {
+    __proto__: {
+      _x: 42,
+      get x() {
+        return 'proto' + this._x;
+      }
+    },
+    get x() {
+      return super.x;
+    }
+  };
+  assertEquals('proto42', object.x);
+})();
+
+
+(function TestSetter() {
+  var object = {
+    __proto__: {
+      _x: 0,
+      set x(v) {
+        return this._x = v;
+      }
+    },
+    set x(v) {
+      super.x = v;
+    }
+  };
+  assertEquals(1, object.x = 1);
+  assertEquals(1, object._x);
+  assertEquals(0, Object.getPrototypeOf(object)._x);
+})();
+
+
+(function TestMethodAsProperty() {
+  var object = {
+    __proto__: {
+      method: function(x) {
+        return 'proto' + x;
+      }
+    },
+    method: function(x) {
+      return super.method(x);
+    }
+  };
+  assertEquals('proto42', object.method(42));
+})();
+
+
+(function TestOptimized() {
+  // Object literals without any accessors get optimized.
+  var object = {
+    method() {
+      return super.toString;
+    }
+  };
+  assertEquals(Object.prototype.toString, object.method());
+})();
+
+
+(function TestConciseGenerator() {
+  var o = {
+    __proto__: {
+      m() {
+        return 42;
+      }
+    },
+    *g() {
+      yield super.m();
+    },
+    g2: function*() {
+      yield super.m() + 1;
+    },
+    g3: (function*() {
+      yield super.m() + 2;
+    })
+  };
+
+  assertEquals(42, o.g().next().value);
+  assertEquals(43, o.g2().next().value);
+  assertEquals(44, o.g3().next().value);
+})();