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+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+
+// Check that keyed stores make things go dict mode faster than non-keyed
+// stores.
+
+function AddProps(obj) {
+ for (var i = 0; i < 26; i++) {
+ obj["x" + i] = 0;
+ }
+}
+
+
+function AddPropsNonKeyed(obj) {
+ obj.x0 = 0;
+ obj.x1 = 0;
+ obj.x2 = 0;
+ obj.x3 = 0;
+ obj.x4 = 0;
+ obj.x5 = 0;
+ obj.x6 = 0;
+ obj.x7 = 0;
+ obj.x8 = 0;
+ obj.x9 = 0;
+ obj.x10 = 0;
+ obj.x11 = 0;
+ obj.x12 = 0;
+ obj.x13 = 0;
+ obj.x14 = 0;
+ obj.x15 = 0;
+ obj.x16 = 0;
+ obj.x17 = 0;
+ obj.x18 = 0;
+ obj.x19 = 0;
+ obj.x20 = 0;
+ obj.x21 = 0;
+ obj.x22 = 0;
+ obj.x23 = 0;
+ obj.x24 = 0;
+ obj.x25 = 0;
+}
+
+function AddProps3(obj) {
+ obj["x0"] = 0;
+ obj["x1"] = 0;
+ obj["x2"] = 0;
+ obj["x3"] = 0;
+ obj["x4"] = 0;
+ obj["x5"] = 0;
+ obj["x6"] = 0;
+ obj["x7"] = 0;
+ obj["x8"] = 0;
+ obj["x9"] = 0;
+ obj["x10"] = 0;
+ obj["x11"] = 0;
+ obj["x12"] = 0;
+ obj["x13"] = 0;
+ obj["x14"] = 0;
+ obj["x15"] = 0;
+ obj["x16"] = 0;
+ obj["x17"] = 0;
+ obj["x18"] = 0;
+ obj["x19"] = 0;
+ obj["x20"] = 0;
+ obj["x21"] = 0;
+ obj["x22"] = 0;
+ obj["x23"] = 0;
+ obj["x24"] = 0;
+ obj["x25"] = 0;
+}
+
+
+var keyed = {};
+AddProps(keyed);
+assertFalse(%HasFastProperties(keyed));
+
+var non_keyed = {};
+AddPropsNonKeyed(non_keyed);
+assertTrue(%HasFastProperties(non_keyed));
+
+var obj3 = {};
+AddProps3(obj3);
+assertTrue(%HasFastProperties(obj3));
+
+var bad_name = {};
+bad_name[".foo"] = 0;
+assertFalse(%HasFastProperties(bad_name));