JezK
Edit File: regress-1620.js
// Copyright 2011 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. // Don't allow malformed unicode escape sequences in identifiers. // In strings and regexps we currently allow malformed unicode escape // sequences without throwing a SyntaxError. Instead "\u22gk" would // treat the "\u" as an identity escape, and evaluate to "u22gk". // Due to code sharing, we did the same in identifiers. This should // no longer be the case. // See: http://code.google.com/p/v8/issues/detail?id=1620 assertThrows("var \\u\\u\\u = 42;"); assertThrows("var \\u41 = 42;"); assertThrows("var \\u123 = 42;"); eval("var \\u1234 = 42;"); assertEquals(42, eval("\u1234")); assertThrows("var uuu = 42; var x = \\u\\u\\u"); // Regressions introduced and fixed again while fixing the above. // Handle 0xFFFD correctly (it's a valid value, and shouldn't be used // to mark an error). assertEquals(0xFFFD, "\uFFFD".charCodeAt(0)); // Handle unicode escapes in regexp flags correctly. assertThrows("/x/g\\uim", SyntaxError); assertThrows("/x/g\\u2im", SyntaxError); assertThrows("/x/g\\u22im", SyntaxError); assertThrows("/x/g\\u222im", SyntaxError); assertThrows("/x/g\\\\u2222im", SyntaxError);