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-// 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.
-
-// Test proper handling of keywords, future reserved words and
-// future reserved words in strict mode as specific by 7.6.1 and 7.6.2
-// in ECMA-262.
-
-// This code is based on:
-// http://trac.webkit.org/export/89109/trunk/LayoutTests/fast/js/script-tests/keywords-and-reserved_words.js
-
-function isKeyword(x)
-{
- try {
- eval("var " + x + ";");
- } catch(e) {
- return true;
- }
-
- return false;
-}
-
-function isStrictKeyword(x)
-{
- try {
- eval("'use strict'; var "+x+";");
- } catch(e) {
- return true;
- }
-
- return false;
-}
-
-function classifyIdentifier(x)
-{
- if (isKeyword(x)) {
- // All non-strict keywords are also keywords in strict code.
- if (!isStrictKeyword(x)) {
- return "ERROR";
- }
- return "keyword";
- }
-
- // Check for strict mode future reserved words.
- if (isStrictKeyword(x)) {
- return "strict";
- }
-
- return "identifier";
-}
-
-function testKeyword(word) {
- // Classify word
- assertEquals("keyword", classifyIdentifier(word));
-
- // Simple use of a keyword
- assertThrows("var " + word + " = 1;", SyntaxError);
- if (word != "this") {
- assertThrows("typeof (" + word + ");", SyntaxError);
- }
-
- // object literal properties
- eval("var x = { " + word + " : 42 };");
- eval("var x = { get " + word + " () {} };");
- eval("var x = { set " + word + " (value) {} };");
-
- // object literal with string literal property names
- eval("var x = { '" + word + "' : 42 };");
- eval("var x = { get '" + word + "' () { } };");
- eval("var x = { set '" + word + "' (value) { } };");
-
- // Function names and arguments
- assertThrows("function " + word + " () { }", SyntaxError);
- assertThrows("function foo (" + word + ") {}", SyntaxError);
- assertThrows("function foo (a, " + word + ") { }", SyntaxError);
- assertThrows("function foo (" + word + ", a) { }", SyntaxError);
- assertThrows("function foo (a, " + word + ", b) { }", SyntaxError);
- assertThrows("var foo = function (" + word + ") { }", SyntaxError);
-
- // setter parameter
- assertThrows("var x = { set foo(" + word + ") { } };", SyntaxError);
-}
-
-// Not keywords - these are all just identifiers.
-var identifiers = [
- "x", "keyword",
- "id", "strict",
- "identifier", "use",
- // The following are reserved in ES3 but not in ES5.
- "abstract", "int",
- "boolean", "long",
- "byte", "native",
- "char", "short",
- "double", "synchronized",
- "final", "throws",
- "float", "transient",
- "goto", "volatile" ];
-
-for (var i = 0; i < identifiers.length; i++) {
- assertEquals ("identifier", classifyIdentifier(identifiers[i]));
-}
-
-// 7.6.1.1 Keywords
-var keywords = [
- "break", "in",
- "case", "instanceof",
- "catch", "new",
- "continue", "return",
- "debugger", "switch",
- "default", "this",
- "delete", "throw",
- "do", "try",
- "else", "typeof",
- "finally", "var",
- "for", "void",
- "function", "while",
- "if", "with",
- // In ES5 "const" is a "future reserved word" but we treat it as a keyword.
- "const" ];
-
-for (var i = 0; i < keywords.length; i++) {
- testKeyword(keywords[i]);
-}
-
-// 7.6.1.2 Future Reserved Words (without "const")
-var future_reserved_words = [
- "class",
- "enum",
- "export",
- "extends",
- "import",
- "super" ];
-
-for (var i = 0; i < future_reserved_words.length; i++) {
- testKeyword(future_reserved_words[i]);
-}
-
-// 7.6.1.2 Future Reserved Words, in strict mode only.
-var future_strict_reserved_words = [
- "implements",
- "interface",
- "let",
- "package",
- "private",
- "protected",
- "public",
- "static",
- "yield" ];
-
-for (var i = 0; i < future_strict_reserved_words.length; i++) {
- assertEquals ("strict", classifyIdentifier(future_strict_reserved_words[i]));
-}
-
-// More strict mode specific tests can be found in mjsunit/strict-mode.js.