jdk8-mips64-public/nashorn: test/script/basic/NASHORN-377.js@66685c69bdb3 (annotated)

test/script/basic/NASHORN-377.js@66685c69bdb3 (annotated)

test/script/basic/NASHORN-377.js

Wed, 22 May 2013 19:33:08 +0530

author: sundar
date: Wed, 22 May 2013 19:33:08 +0530
changeset 284: 66685c69bdb3
parent 7: 5a1b0714df0e
child 952: 6d5471a497fb
child 962: ac62e33a99b0
permissions: -rw-r--r--

8014735: Typed Array, BYTES_PER_ELEMENT should be a class property
Reviewed-by: lagergren, jlaskey

 /*
  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /*
  * NASHORN-377: Typed arrays.
  *
  * @test
  * @run
  */
 var types = [Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];
 //---------------------------------------------------------------------------
 // utility functions
 //---------------------------------------------------------------------------
 function tohex(d, w) {
   var hex = Number(d).toString(16);
   var pad = (w ? w : 8) - hex.length;
   hex = "00000000".substr(0, pad) + hex;
   return hex;
 }
 function arrstr(a, n, w) {
   var s = "";
   if (typeof n == "undefined") n = a.length;
   if (typeof w == "undefined") w = a.constructor.BYTES_PER_ELEMENT * 2;
   for (var i = 0; i < n; i++) {
     s += tohex(a[i], w);
   }
   return s;
 }
 function bufstr(b) {
   if (b.buffer !== undefined) {
     b = b.buffer;
   }
   return arrstr(new Uint8Array(b));
 }
 function assertFail(f) {
   try {
     f();
   } catch (e) {
     //print(e);
     return;
   }
   throw "assertion failed: expected exception";
 }
 function assertTrue(f) {
   if (f() !== true) throw "assertion failed: " + f;
 }
 function isUndefined(x) {
   return typeof x === "undefined";
 }
 function fillArray(a, start) {
   if (typeof start == "undefined") start = 1;
   for (var i = 0; i < a.length; i++) {
     a[i] = i + start;
   }
   return a;
 }
 //---------------------------------------------------------------------------
 // tests
 //---------------------------------------------------------------------------
 (function() {
   var b = new ArrayBuffer(8);
   var i8 = new Int8Array(b);
   print(i8.buffer.byteLength, b.byteLength, i8.buffer === b, b.length);
   print(b, i8.buffer, i8);
 })();
 (function test_attributes() {
   var b = new ArrayBuffer(8);
   for (var i in types) {
     var x = new types[i](b);
     print(x.byteOffset, x.byteLength, x.length, x.constructor.BYTES_PER_ELEMENT);
     assertTrue(function(){ return x.constructor === types[i] });
   }
 })();
 (function() {
   var b = new ArrayBuffer(8);
   var i8 = new Int8Array(b);
   fillArray(i8, 0x70);
   var i8_2 = new Int8Array(b, 2);
   var i8_2_4 = new Uint8Array(b, 2, 4);
   i8_2_4[3] = 0x80;
   print(arrstr(i8, 8, 2)  + " " + bufstr(i8));
   print(arrstr(i8_2, 6)   + " " + i8_2.byteOffset   + " " + i8_2.byteLength);
   print(arrstr(i8_2_4, 4) + " " + i8_2_4.byteOffset + " " + i8_2_4.byteLength);
   var i8_1_5 = i8.subarray(1, 5);
   i8_2_4.subarray(1, 5);
   print(arrstr(i8_1_5, 4) + " " + i8_1_5.byteOffset + " " + i8_1_5.byteLength);
   print(bufstr(b.slice(1,7)));
 })();
 (function() {
   var b = new ArrayBuffer(8);
   fillArray(new Int8Array(b), 0x70);
   new Int8Array(b)[5] = 0x80;
   var i32 = new Int32Array(b);
   var u32 = new Uint32Array(b);
   print(arrstr(i32), i32[0], i32[1]);
   i32[1] = 0xfefdfcfb;
   print(arrstr(i32), i32[0], i32[1]);
   print(arrstr(u32), u32[0], u32[1]);
   var pi = 3.1415926;
   var f32 = new Float32Array(b);
   var f64 = new Float64Array(b);
   f32[0] = pi;
   print(bufstr(b), f32.length);
   f64[0] = pi;
   print(bufstr(b), f64.length);
   print(arrstr(u32), u32[0], u32[1]);
   var d = new Int32Array(3);
   d.set(i32,1);
   print(bufstr(d));
   var s = new Int16Array(b);
   var t = new Uint16Array(b);
   print(arrstr(s), arrstr(t));
   s[0] = -1; s[1] = 0x80;
   print(arrstr(s), arrstr(t));
 })();
 (function enumerate_properties() {
   var i8 = new Int8Array(new ArrayBuffer(8));
   var s = ""; for (var i in i8) { s += i + " "; } print(s.trim());
 })();
 // check that ScriptObject fallback is still working
 // DISABLED because correct behavior is unclear
 (function() {
   // NB: firefox will never set any out-of-bounds or non-array values although it does get both from prototype.
   var z = new Uint8Array(4);
   z["asdf"] = "asdf"; print(z["asdf"]);
   z[0x100000000] = "asdf"; print(z[0x100000000]);
   z[-1] = "asdf"; print(z[-1]);
   // v8 and nashorn disagree on out-of-bounds uint32 indices: v8 won't go to the prototype.
   z[0xf0000000] = "asdf"; print(z[0xf0000000]);
   z[0xffffffff] = "asdf"; print(z[0xffffffff]);
   z[0x70000000] = "asdf"; print(z[0x70000000]);
   // this will work in firefox and nashorn (not in v8).
   Uint8Array.prototype[4] = "asdf"; print(z[4]);
 });
 (function test_exceptions() {
   assertFail(function() { new Int32Array(new ArrayBuffer(7)); });
   assertFail(function() { new Int32Array(new ArrayBuffer(8), 0, 4); });
   assertFail(function() { new Int32Array(new ArrayBuffer(8),-1, 2); });
   assertFail(function() { new Int32Array(new ArrayBuffer(8), 0,-1); });
 })();
 (function test_subarray() {
   var x = fillArray(new Int8Array(8));
   print(arrstr(x));
   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
   print(arrstr(x.subarray(-10, -2))); // negative index clamped to 0
   assertTrue(function(){ return arrstr(x.subarray(6, 4)) === ""; }); // negative length clamped to 0
   print(arrstr(x.subarray(1,-1).subarray(1,-1)), arrstr(x.subarray(1,-1).subarray(1,-1).subarray(1,-1))); // subarray of subarray
 })();
 (function test_slice() {
   var b = ArrayBuffer(16);
   fillArray(new Int8Array(b));
   print(bufstr(b));
   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
   print(bufstr(b.slice(-20, -4))); // negative index clamped to 0
   assertTrue(function(){ return bufstr(b.slice(8, 4)) === ""; }); // negative length clamped to 0
   print(arrstr(new Int16Array(b.slice(1,-1).slice(2,-1).slice(1,-2).slice(1,-1)))); // slice of slice
 })();
 (function test_clamped() {
   var a = new Uint8ClampedArray(10);
   a[0] = -17;       // clamped to 0
   a[1] = 4711;      // clamped to 255
   a[2] = 17.5;      // clamped to 18
   a[3] = 16.5;      // clamped to 16
   a[4] = 255.9;     // clamped to 255
   a[5] = Infinity;  // clamped to 255
   a[6] = -Infinity; // clamped to 0
   a[7] = NaN;       // 0
   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; });
 })();
 (function test_out_of_bounds() {
   var a = new Int32Array(10);
   a[10] = 10;
   a[100] = 100;
   a[1000] = 1000;
   assertTrue(function(){ return isUndefined(a[10]) && isUndefined(a[11]) && isUndefined(a[100]) && isUndefined(a[123]) && isUndefined(a[1000]); });
 })();