JezK
Edit File: strict-mode-opt.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. // Flags: --allow-natives-syntax var global = 0; var MAX = 5; // Attempt to inline strcit in non-strict. function strictToBeInlined(n) { "use strict"; global = "strict"; if (n == MAX) { undefined_variable_strict = "value"; } } function nonstrictCallStrict(n) { strictToBeInlined(n); } (function testInlineStrictInNonStrict() { for (var i = 0; i <= MAX; i ++) { try { if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict); nonstrictCallStrict(i); } catch (e) { assertInstanceof(e, ReferenceError); assertEquals(MAX, i); return; } } fail("ReferenceError after MAX iterations", "no exception"); })(); // Attempt to inline non-strict in strict. function nonstrictToBeInlined(n) { global = "nonstrict"; if (n == MAX) { undefined_variable_nonstrict = "The nonstrict value"; } } function strictCallNonStrict(n) { "use strict"; nonstrictToBeInlined(n); } (function testInlineNonStrictInStrict() { for (var i = 0; i <= MAX; i ++) { try { if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict); strictCallNonStrict(i); } catch (e) { fail("no exception", "exception"); } } assertEquals("The nonstrict value", undefined_variable_nonstrict); })(); // Optimize strict function. function strictAssignToUndefined(n) { "use strict"; global = "strict"; if (n == MAX) { undefined_variable_strict_2 = "value"; } } (function testOptimizeStrictAssignToUndefined() { for (var i = 0; i <= MAX; i ++) { try { if (i == MAX - 1) %OptimizeFunctionOnNextCall(nonstrictCallStrict); strictAssignToUndefined(i); } catch (e) { assertInstanceof(e, ReferenceError); assertEquals(MAX, i); return; } } fail("ReferenceError after MAX iterations", "no exception"); })();