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+// Copyright 2008 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
+
+/**
+ * @fileoverview Check all sorts of borderline cases for charCodeAt.
+ */
+
+function Cons() {
+ return "Te" + "st testing 123";
+}
+
+
+function Deep() {
+ var a = "T";
+ a += "e";
+ a += "s";
+ a += "ting testing 123";
+ return a;
+}
+
+
+function Slice() {
+ return "testing Testing testing 123456789012345".substring(8, 22);
+}
+
+
+function Flat() {
+ return "Testing testing 123";
+}
+
+function Cons16() {
+ return "Te" + "\u1234t testing 123";
+}
+
+
+function Deep16() {
+ var a = "T";
+ a += "e";
+ a += "\u1234";
+ a += "ting testing 123";
+ return a;
+}
+
+
+function Slice16Beginning() {
+ return "Te\u1234t testing testing 123".substring(0, 14);
+}
+
+
+function Slice16Middle() {
+ return "test Te\u1234t testing testing 123".substring(5, 19);
+}
+
+
+function Slice16End() {
+ return "test Te\u1234t".substring(5, 9);
+}
+
+
+function Flat16() {
+ return "Te\u1234ting testing 123";
+}
+
+
+function Thing() {
+}
+
+
+function NotAString() {
+ var n = new Thing();
+ n.toString = function() { return "Test"; };
+ n.charCodeAt = String.prototype.charCodeAt;
+ return n;
+}
+
+
+function NotAString16() {
+ var n = new Thing();
+ n.toString = function() { return "Te\u1234t"; };
+ n.charCodeAt = String.prototype.charCodeAt;
+ return n;
+}
+
+
+function TestStringType(generator, sixteen) {
+ var g = generator;
+ var len = g().toString().length;
+ var t = sixteen ? "t" : "f"
+ t += generator.name;
+ assertTrue(isNaN(g().charCodeAt(-1e19)), 1 + t);
+ assertTrue(isNaN(g().charCodeAt(-0x80000001)), 2 + t);
+ assertTrue(isNaN(g().charCodeAt(-0x80000000)), 3 + t);
+ assertTrue(isNaN(g().charCodeAt(-0x40000000)), 4 + t);
+ assertTrue(isNaN(g().charCodeAt(-1)), 5 + t);
+ assertTrue(isNaN(g().charCodeAt(len)), 6 + t);
+ assertTrue(isNaN(g().charCodeAt(len + 1)), 7 + t);
+ assertTrue(isNaN(g().charCodeAt(0x3fffffff)), 8 + t);
+ assertTrue(isNaN(g().charCodeAt(0x7fffffff)), 9 + t);
+ assertTrue(isNaN(g().charCodeAt(0x80000000)), 10 + t);
+ assertTrue(isNaN(g().charCodeAt(1e9)), 11 + t);
+ assertEquals(84, g().charCodeAt(0), 12 + t);
+ assertEquals(84, g().charCodeAt("test"), 13 + t);
+ assertEquals(84, g().charCodeAt(""), 14 + t);
+ assertEquals(84, g().charCodeAt(null), 15 + t);
+ assertEquals(84, g().charCodeAt(undefined), 16 + t);
+ assertEquals(84, g().charCodeAt(), 17 + t);
+ assertEquals(84, g().charCodeAt(void 0), 18 + t);
+ assertEquals(84, g().charCodeAt(false), 19 + t);
+ assertEquals(101, g().charCodeAt(true), 20 + t);
+ assertEquals(101, g().charCodeAt(1), 21 + t);
+ assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2), 22 + t);
+ assertEquals(116, g().charCodeAt(3), 23 + t);
+ assertEquals(101, g().charCodeAt(1.1), 24 + t);
+ assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2.1718), 25 + t);
+ assertEquals(116, g().charCodeAt(3.14159), 26 + t);
+}
+
+
+TestStringType(Cons, false);
+TestStringType(Deep, false);
+TestStringType(Slice, false);
+TestStringType(Flat, false);
+TestStringType(NotAString, false);
+TestStringType(Cons16, true);
+TestStringType(Deep16, true);
+TestStringType(Slice16Beginning, true);
+TestStringType(Slice16Middle, true);
+TestStringType(Slice16End, true);
+TestStringType(Flat16, true);
+TestStringType(NotAString16, true);
+
+
+function ConsNotSmiIndex() {
+ var str = Cons();
+ assertTrue(isNaN(str.charCodeAt(0x7fffffff)));
+}
+
+for (var i = 0; i < 5; i++) {
+ ConsNotSmiIndex();
+}
+%OptimizeFunctionOnNextCall(ConsNotSmiIndex);
+ConsNotSmiIndex();
+
+
+for (var i = 0; i != 10; i++) {
+ assertEquals(101, Cons16().charCodeAt(1.1));
+ assertEquals('e', Cons16().charAt(1.1));
+}
+
+function StupidThing() {
+ // Doesn't return a string from toString!
+ this.toString = function() { return 42; }
+ this.charCodeAt = String.prototype.charCodeAt;
+}
+
+assertEquals(52, new StupidThing().charCodeAt(0), 27);
+assertEquals(50, new StupidThing().charCodeAt(1), 28);
+assertTrue(isNaN(new StupidThing().charCodeAt(2)), 29);
+assertTrue(isNaN(new StupidThing().charCodeAt(-1)), 30);
+
+
+// Medium (>255) and long (>65535) strings.
+
+var medium = "12345678";
+medium += medium; // 16.
+medium += medium; // 32.
+medium += medium; // 64.
+medium += medium; // 128.
+medium += medium; // 256.
+
+var long = medium;
+long += long + long + long; // 1024.
+long += long + long + long; // 4096.
+long += long + long + long; // 16384.
+long += long + long + long; // 65536.
+
+assertTrue(isNaN(medium.charCodeAt(-1)), 31);
+assertEquals(49, medium.charCodeAt(0), 32);
+assertEquals(56, medium.charCodeAt(255), 33);
+assertTrue(isNaN(medium.charCodeAt(256)), 34);
+
+assertTrue(isNaN(long.charCodeAt(-1)), 35);
+assertEquals(49, long.charCodeAt(0), 36);
+assertEquals(56, long.charCodeAt(65535), 37);
+assertTrue(isNaN(long.charCodeAt(65536)), 38);
+
+
+// Test crankshaft code when the function is set directly on the
+// string prototype object instead of the hidden prototype object.
+// See http://code.google.com/p/v8/issues/detail?id=1070
+
+String.prototype.x = String.prototype.charCodeAt;
+
+function directlyOnPrototype() {
+ assertEquals(97, "a".x(0));
+ assertEquals(98, "b".x(0));
+ assertEquals(99, "c".x(0));
+ assertEquals(97, "a".x(0));
+ assertEquals(98, "b".x(0));
+ assertEquals(99, "c".x(0));
+}
+
+for (var i = 0; i < 5; i++) {
+ directlyOnPrototype();
+}
+%OptimizeFunctionOnNextCall(directlyOnPrototype);
+directlyOnPrototype();