Re-target for ES.Next (#3901)

A list of changes:
- 'es2015-subset' profile is deprecated, and an 'es.next' profile is added.
- The default profile is changed to 'es.next'
- Renamed the JERRY_ES2015 guard to JERRY_ESNEXT
- Renamed JERRY_ES2015_BUILTIN_* guards to JERRY_BUILTIN_*
- Moved es2015 specific tests to a new 'es.next' subdirectory
- Updated docs, targets, and test runners to reflect these changes

Resolves #3737.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu

tests/jerry/es.next/proxy_own_keys.js

@@ -0,0 +1,225 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// 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.
+
+function array_check(result_array, expected_array) {
+  assert(result_array instanceof Array);
+  assert(result_array.length === expected_array.length);
+  for (var idx = 0; idx < expected_array.length; idx++) {
+    assert(result_array[idx] === expected_array[idx]);
+  }
+}
+
+var target = {};
+var handler = { ownKeys (target) {
+  throw 42;
+}};
+
+var proxy = new Proxy(target, handler);
+
+try {
+  // Array.prototype.sort
+  Array.prototype.sort.call(proxy);
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+try {
+  // 19.1.2.14.4
+  Object.keys(proxy);
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+try {
+  // 19.1.2.7.1
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+try {
+  // 19.1.2.8.1
+  Object.getOwnPropertySymbols(proxy);
+  assert(false);
+} catch (e) {
+  assert(e === 42);
+}
+
+// test basic functionality
+var symA = Symbol("smA");
+var symB = Symbol("smB");
+var target = { prop1: "prop1", prop2: "prop2"};
+target[symB] = "s3";
+var handler = {
+  ownKeys: function(target) {
+    return ["foo", "bar", symA];
+  }
+}
+
+var proxy = new Proxy(target, handler);
+
+array_check(Reflect.ownKeys(proxy), ["foo", "bar", symA]);
+array_check(Object.getOwnPropertyNames(proxy), ["foo", "bar"]);
+array_check(Object.keys(proxy), ["foo", "bar"]);
+array_check(Object.getOwnPropertySymbols(proxy), [symA]);
+
+handler.ownKeys = function(target) {return Object.getOwnPropertyNames(target);};
+
+array_check(Reflect.ownKeys(proxy), ["prop1", "prop2"]);
+array_check(Object.getOwnPropertyNames(proxy), ["prop1", "prop2"]);
+array_check(Object.keys(proxy), ["prop1", "prop2"]);
+array_check(Object.getOwnPropertySymbols(proxy), []);
+
+// test with no trap
+var target = { prop1: "prop1", prop2: "prop2"};
+var handler = {};
+var proxy = new Proxy(target, handler);
+
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === '["prop1","prop2"]');
+
+// test wtih "undefined" trap
+var target = { prop1: "prop1", prop2: "prop2"};
+var handler = {ownKeys: null};
+var proxy = new Proxy(target, handler);
+
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === '["prop1","prop2"]');
+
+// test with invalid trap
+var target = { prop1: "prop1", prop2: "prop2"};
+var handler = {ownKeys: 42};
+var proxy = new Proxy(target, handler);
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+// test when CreateListFromArrayLike called on non-object
+var target = { prop1: "prop1", prop2: "prop2"};
+var handler = {
+	ownKeys: function(target) {
+      return "foo";
+    }
+};
+
+var proxy = new Proxy(target, handler);
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+// test with invalid property key
+var target = {};
+var handler = {
+	ownKeys: function(target) {
+      return [5];
+    }
+};
+
+var proxy = new Proxy(target, handler);
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+// test with duplicated keys
+var target = { prop1: "prop1", prop2: "prop2"};
+var handler = {
+	ownKeys: function(target) {
+      return ["a", "a", "a"];
+    }
+};
+
+var proxy = new Proxy(target, handler);
+
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === '["a","a","a"]');
+
+// test with lots of keys
+var keyslist = [];
+
+var handler = {
+	ownKeys: function(target) {
+      for (var idx = 0; idx < 30; idx++) {
+        keyslist.push("K" + idx);
+      }
+      return keyslist;
+    }
+};
+
+var proxy = new Proxy(target, handler);
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === JSON.stringify(keyslist));
+
+// test when invariants gets violated
+var target = {
+  "target_one": 1
+};
+Object.defineProperty(target, "nonconf", {value: 1, configurable: false});
+
+var keys = ["foo"];
+
+var handler = {
+	ownKeys: function(target) {
+      return keys;
+    }
+};
+
+var proxy = new Proxy(target, handler);
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+keys = ["nonconf"];
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === '["nonconf"]');
+
+Object.preventExtensions(target);
+keys = ["foo", "nonconf"];
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+keys = ["target_one", "nonconf"];
+
+assert(JSON.stringify(Object.getOwnPropertyNames(proxy)) === '["target_one","nonconf"]');
+
+keys = ["target_one", "nonconf", "foo"];
+
+try {
+  Object.getOwnPropertyNames(proxy);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}