Migrated several tests from blink to V8 repository.

test/webkit/reentrant-caching.js

+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  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.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+
+if (this.description)
+    description("Test caching with re-entrancy.");
+
+function test1() {
+    var objects = [{prop:1}, {get prop(){return 2}}];
+
+    function g(o) {
+        return o.prop;
+    }
+
+    for (var i = 0; i < 10000; i++) {
+        var o = {
+            get prop() {
+                try {
+                    g(objects[++j]);
+                }catch(e){
+                }
+                return 1;
+            }
+        };
+        o[i] = i;
+        objects.push(o);
+    }
+    var j=0;
+    g(objects[0]);
+    g(objects[1]);
+    g(objects[2]);
+    g(objects[3]);
+}
+
+
+function test2() {
+    var objects = [Object.create({prop:1}), Object.create({get prop(){return 2}})];
+
+    function g(o) {
+        return o.prop;
+    }
+    var proto = {
+        get prop() {
+            try {
+                g(objects[++j]);
+            }catch(e){
+            }
+            return 1;
+        }
+    };
+    for (var i = 0; i < 10000; i++) {
+        var o = Object.create(proto);
+        o[i] = i;
+        objects.push(o);
+    }
+    var j=0;
+    g(objects[0]);
+    g(objects[1]);
+    g(objects[2]);
+    g(objects[3]);
+}
+
+
+function test3() {
+    var objects = [Object.create(Object.create({prop:1})), Object.create(Object.create({get prop(){return 2}}))];
+
+    function g(o) {
+        return o.prop;
+    }
+    var proto = {
+        get prop() {
+            try {
+                g(objects[++j]);
+            }catch(e){
+            }
+            return 1;
+        }
+    };
+    for (var i = 0; i < 10000; i++) {
+        var o = Object.create(Object.create(proto));
+        o[i] = i;
+        objects.push(o);
+    }
+    var j=0;
+    g(objects[0]);
+    g(objects[1]);
+    g(objects[2]);
+    g(objects[3]);
+}
+
+test1();
+test2();
+test3();