[runtime] [proxy] implementing [[Get]] trap.

test/mjsunit/harmony/proxy-get.js

+// Copyright 2015 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-proxies
+
+var target = {
+  "target_one": 1,
+  "property": "value"
+};
+
+var handler = { "handler": 1 };
+
+var proxy = new Proxy(target, handler);
+assertEquals("value", proxy.property);
+assertEquals(undefined, proxy.nothing);
+assertEquals(undefined, proxy.handler);
+
+handler.get = function() { return "value 2" };
+assertEquals("value 2", proxy.property);
+assertEquals("value 2", proxy.nothing);
+assertEquals("value 2", proxy.handler);
+

[Jakob Kummerow, 2015/11/30 12:56:11]

How about test cases for the code paths that throw?

[Camillo Bruni, 2015/11/30 14:57:35]

right, let's add some more detailed tests.

+var handler2 = new Proxy({"get": function() { return "value 3" }},{});
+var proxy2 = new Proxy(target, handler2);
+assertEquals("value 3", proxy2.property);
+assertEquals("value 3", proxy2.nothing);
+assertEquals("value 3", proxy2.handler);