1 // Copyright 2011 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --allow-natives-syntax 29 30 // This is a regression test for overlapping key and value registers. 31 32 var types = [Array, Int8Array, Uint8Array, Int16Array, Uint16Array, 33 Int32Array, Uint32Array, Uint8ClampedArray, Float32Array, 34 Float64Array]; 35 36 var results1 = [-2, -2, 254, -2, 65534, -2, 4294967294, 0, -2, -2]; 37 var results2 = [undefined, -1, 255, -1, 65535, -1, 4294967295, 0, -1, -1]; 38 var results3 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; 39 var results4 = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]; 40 41 const kElementCount = 40; 42 43 function do_slice(a) { 44 return Array.prototype.slice.call(a, 4, 8); 45 } 46 47 for (var t = 0; t < types.length; t++) { 48 var type = types[t]; 49 var a = new type(kElementCount); 50 for (var i = 0; i < kElementCount; ++i ) { 51 a[i] = i-6; 52 } 53 delete a[5]; 54 var sliced = do_slice(a); 55 56 %ClearFunctionTypeFeedback(do_slice); 57 assertEquals(results1[t], sliced[0]); 58 assertEquals(results2[t], sliced[1]); 59 assertEquals(results3[t], sliced[2]); 60 assertEquals(results4[t], sliced[3]); 61 } 62
