NASHORN-377.js revision 877:cf4d2252d444
1/* 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * NASHORN-377: Typed arrays. 26 * 27 * @test 28 * @run 29 */ 30 31var types = [Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array]; 32 33//--------------------------------------------------------------------------- 34// utility functions 35//--------------------------------------------------------------------------- 36function tohex(d, w) { 37 var hex = Number(d).toString(16); 38 var pad = (w ? w : 8) - hex.length; 39 hex = "00000000".substr(0, pad) + hex; 40 return hex; 41} 42 43function arrstr(a, n, w) { 44 var s = ""; 45 if (typeof n == "undefined") n = a.length; 46 if (typeof w == "undefined") w = a.constructor.BYTES_PER_ELEMENT * 2; 47 for (var i = 0; i < n; i++) { 48 s += tohex(a[i], w); 49 } 50 return s; 51} 52function bufstr(b) { 53 if (b.buffer !== undefined) { 54 b = b.buffer; 55 } 56 return arrstr(new Uint8Array(b)); 57} 58 59function assertFail(f) { 60 try { 61 f(); 62 } catch (e) { 63 //print(e); 64 return; 65 } 66 throw "assertion failed: expected exception"; 67} 68 69function assertTrue(f) { 70 if (f() !== true) throw "assertion failed: " + f; 71} 72 73function isUndefined(x) { 74 return typeof x === "undefined"; 75} 76 77function fillArray(a, start) { 78 if (typeof start == "undefined") start = 1; 79 for (var i = 0; i < a.length; i++) { 80 a[i] = i + start; 81 } 82 return a; 83} 84 85//--------------------------------------------------------------------------- 86// tests 87//--------------------------------------------------------------------------- 88(function() { 89 var b = new ArrayBuffer(8); 90 var i8 = new Int8Array(b); 91 print(i8.buffer.byteLength, b.byteLength, i8.buffer === b, b.length); 92 print(b, i8.buffer, i8); 93})(); 94 95(function test_attributes() { 96 var b = new ArrayBuffer(8); 97 for (var i in types) { 98 var x = new types[i](b); 99 print(x.byteOffset, x.byteLength, x.length, x.constructor.BYTES_PER_ELEMENT); 100 assertTrue(function(){ return x.constructor === types[i] }); 101 } 102})(); 103 104(function() { 105 var b = new ArrayBuffer(8); 106 var i8 = new Int8Array(b); 107 fillArray(i8, 0x70); 108 109 var i8_2 = new Int8Array(b, 2); 110 var i8_2_4 = new Uint8Array(b, 2, 4); 111 112 i8_2_4[3] = 0x80; 113 114 print(arrstr(i8, 8, 2) + " " + bufstr(i8)); 115 print(arrstr(i8_2, 6) + " " + i8_2.byteOffset + " " + i8_2.byteLength); 116 print(arrstr(i8_2_4, 4) + " " + i8_2_4.byteOffset + " " + i8_2_4.byteLength); 117 118 var i8_1_5 = i8.subarray(1, 5); 119 i8_2_4.subarray(1, 5); 120 print(arrstr(i8_1_5, 4) + " " + i8_1_5.byteOffset + " " + i8_1_5.byteLength); 121 122 print(bufstr(b.slice(1,7))); 123})(); 124 125(function() { 126 var b = new ArrayBuffer(8); 127 fillArray(new Int8Array(b), 0x70); 128 new Int8Array(b)[5] = 0x80; 129 130 var i32 = new Int32Array(b); 131 var u32 = new Uint32Array(b); 132 print(arrstr(i32), i32[0], i32[1]); 133 i32[1] = 0xfefdfcfb; 134 print(arrstr(i32), i32[0], i32[1]); 135 print(arrstr(u32), u32[0], u32[1]); 136 137 var pi = 3.1415926; 138 var f32 = new Float32Array(b); 139 var f64 = new Float64Array(b); 140 f32[0] = pi; 141 print(bufstr(b), f32.length); 142 f64[0] = pi; 143 print(bufstr(b), f64.length); 144 print(arrstr(u32), u32[0], u32[1]); 145 146 var d = new Int32Array(3); 147 d.set(i32,1); 148 print(bufstr(d)); 149 150 var s = new Int16Array(b); 151 var t = new Uint16Array(b); 152 print(arrstr(s), arrstr(t)); 153 s[0] = -1; s[1] = 0x80; 154 print(arrstr(s), arrstr(t)); 155})(); 156 157(function enumerate_properties() { 158 var i8 = new Int8Array(new ArrayBuffer(8)); 159 var s = ""; for (var i in i8) { s += i + " "; } print(s.trim()); 160})(); 161 162// check that ScriptObject fallback is still working 163// DISABLED because correct behavior is unclear 164(function() { 165 // NB: firefox will never set any out-of-bounds or non-array values although it does get both from prototype. 166 var z = new Uint8Array(4); 167 z["asdf"] = "asdf"; print(z["asdf"]); 168 z[0x100000000] = "asdf"; print(z[0x100000000]); 169 z[-1] = "asdf"; print(z[-1]); 170 171 // v8 and nashorn disagree on out-of-bounds uint32 indices: v8 won't go to the prototype. 172 z[0xf0000000] = "asdf"; print(z[0xf0000000]); 173 z[0xffffffff] = "asdf"; print(z[0xffffffff]); 174 z[0x70000000] = "asdf"; print(z[0x70000000]); 175 176 // this will work in firefox and nashorn (not in v8). 177 Uint8Array.prototype[4] = "asdf"; print(z[4]); 178}); 179 180(function test_exceptions() { 181 assertFail(function() { new Int32Array(new ArrayBuffer(7)); }); 182 assertFail(function() { new Int32Array(new ArrayBuffer(8), 0, 4); }); 183 assertFail(function() { new Int32Array(new ArrayBuffer(8),-1, 2); }); 184 assertFail(function() { new Int32Array(new ArrayBuffer(8), 0,-1); }); 185})(); 186 187(function test_subarray() { 188 var x = fillArray(new Int8Array(8)); 189 print(arrstr(x)); 190 print("subarray(2,4)=" + arrstr(x.subarray(2, 4)), "subarray(-6,-4)=" + arrstr(x.subarray(-6, -4))); // negative index refers from the end of the array 191 print(arrstr(x.subarray(-10, -2))); // negative index clamped to 0 192 assertTrue(function(){ return arrstr(x.subarray(6, 4)) === ""; }); // negative length clamped to 0 193 print(arrstr(x.subarray(1,-1).subarray(1,-1)), arrstr(x.subarray(1,-1).subarray(1,-1).subarray(1,-1))); // subarray of subarray 194})(); 195 196(function test_slice() { 197 var b = new ArrayBuffer(16); 198 fillArray(new Int8Array(b)); 199 print(bufstr(b)); 200 print("slice(4,8)=" + bufstr(b.slice(4, 8)), "slice(-8,-4)=" + bufstr(b.slice(-8, -4))); // negative index refers from the end of the array 201 print(bufstr(b.slice(-20, -4))); // negative index clamped to 0 202 assertTrue(function(){ return bufstr(b.slice(8, 4)) === ""; }); // negative length clamped to 0 203 print(arrstr(new Int16Array(b.slice(1,-1).slice(2,-1).slice(1,-2).slice(1,-1)))); // slice of slice 204})(); 205 206(function test_clamped() { 207 var a = new Uint8ClampedArray(10); 208 a[0] = -17; // clamped to 0 209 a[1] = 4711; // clamped to 255 210 a[2] = 17.5; // clamped to 18 211 a[3] = 16.5; // clamped to 16 212 a[4] = 255.9; // clamped to 255 213 a[5] = Infinity; // clamped to 255 214 a[6] = -Infinity; // clamped to 0 215 a[7] = NaN; // 0 216 assertTrue(function(){ return a[0] === 0 && a[1] === 255 && a[2] === 18 && a[3] === 16 && a[4] === 255 && a[5] === 255 && a[6] === 0 && a[7] === 0; }); 217})(); 218 219(function test_out_of_bounds() { 220 var a = new Int32Array(10); 221 a[10] = 10; 222 a[100] = 100; 223 a[1000] = 1000; 224 assertTrue(function(){ return isUndefined(a[10]) && isUndefined(a[11]) && isUndefined(a[100]) && isUndefined(a[123]) && isUndefined(a[1000]); }); 225})(); 226 227