v8/test/mjsunit/asm/uint8array-outofbounds.js

31 lines
690 B
JavaScript
Raw Normal View History

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
function Module(stdlib, foreign, heap) {
"use asm";
var MEM8 = new stdlib.Uint8Array(heap);
function load(i) {
i = i|0;
i = MEM8[i] | 0;
return i;
}
function store(i, v) {
i = i|0;
v = v|0;
MEM8[i] = v;
}
return { load: load, store: store };
}
var m = Module(this, {}, new ArrayBuffer(1));
m.store(0, 255);
for (var i = 1; i < 64; ++i) {
m.store(i * 1 * 32 * 1024, i);
}
assertEquals(255, m.load(0));
for (var i = 1; i < 64; ++i) {
assertEquals(0, m.load(i * 1 * 32 * 1024));
}