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. Payload for litte and big endian platforms.
26 *
27 * @subtest
28 * @run
29 */
30
31 var types = [Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];
32
33 //---------------------------------------------------------------------------
34 // utility functions
35 //---------------------------------------------------------------------------
36 function 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
43 function 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 }
52 function bufstr(b) {
53 if (b.buffer !== undefined) {
54 b = b.buffer;
55 }
56 return arrstr(new Uint8Array(b));
57 }
58
59 function assertFail(f) {
60 try {
61 f();
62 } catch (e) {
63 //print(e);
64 return;
65 }
66 throw "assertion failed: expected exception";
67 }
68
69 function assertTrue(f) {
70 if (f() !== true) throw "assertion failed: " + f;
71 }
72
73 function isUndefined(x) {
74 return typeof x === "undefined";
75 }
76
77 function 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