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Edit File: literals-optimized.js
// Copyright 2012 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 // Test optimized versions of array and object literals. function TestOptimizedLiteral(create, verify) { verify(create(1, 2, 3), 1, 2, 3); verify(create(3, 5, 7), 3, 5, 7); %OptimizeFunctionOnNextCall(create); verify(create(11, 23, 42), 11, 23, 42); } // Test shallow array literal. function create_arr_shallow(a, b, c) { return [0, a, 0, b, 0, c]; } function verify_arr_shallow(array, a, b, c) { assertSame(6, array.length); assertSame(0, array[0]); assertSame(a, array[1]); assertSame(0, array[2]); assertSame(b, array[3]); assertSame(0, array[4]); assertSame(c, array[5]); } TestOptimizedLiteral(create_arr_shallow, verify_arr_shallow); // Test nested array literal. function create_arr_nested(a, b, c) { return [[0, a], [b, c], [1, 2], 3]; } function verify_arr_nested(array, a, b, c) { assertSame(4, array.length); assertSame(2, array[0].length); assertSame(0, array[0][0]); assertSame(a, array[0][1]); assertSame(2, array[1].length); assertSame(b, array[1][0]); assertSame(c, array[1][1]); assertSame(2, array[2].length); assertSame(1, array[2][0]); assertSame(2, array[2][1]); assertSame(3, array[3]); } TestOptimizedLiteral(create_arr_nested, verify_arr_nested); // Test shallow object literal. function create_obj_shallow(a, b, c) { return { x:a, y:b, z:c, v:'foo', 9:'bar' }; } function verify_obj_shallow(object, a, b, c) { assertSame(a, object.x); assertSame(b, object.y); assertSame(c, object.z); assertSame('foo', object.v); assertSame('bar', object[9]); } TestOptimizedLiteral(create_obj_shallow, verify_obj_shallow); // Test nested object literal. function create_obj_nested(a, b, c) { return { x:{ v:a, w:b }, y:{ v:1, w:2 }, z:c, v:'foo', 9:'bar' }; } function verify_obj_nested(object, a, b, c) { assertSame(a, object.x.v); assertSame(b, object.x.w); assertSame(1, object.y.v); assertSame(2, object.y.w); assertSame(c, object.z); assertSame('foo', object.v); assertSame('bar', object[9]); } TestOptimizedLiteral(create_obj_nested, verify_obj_nested); // Test mixed array and object literal. function create_mixed_nested(a, b, c) { return { x:[1, 2], y:[a, b], z:c, v:{ v:'foo' }, 9:'bar' }; } function verify_mixed_nested(object, a, b, c) { assertSame(2, object.x.length); assertSame(1, object.x[0]); assertSame(2, object.x[1]); assertSame(2, object.y.length); assertSame(a, object.y[0]); assertSame(b, object.y[1]); assertSame(c, object.z); assertSame('foo', object.v.v); assertSame('bar', object[9]); } TestOptimizedLiteral(create_mixed_nested, verify_mixed_nested);