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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax --smi-only-arrays --packed-arrays
var has_packed_elements = !%HasFastHoleyElements(Array());
function test1() {
var a = Array(8);
assertTrue(%HasFastSmiOrObjectElements(a));
assertTrue(%HasFastHoleyElements(a));
}
function test2() {
var a = Array();
assertTrue(%HasFastSmiOrObjectElements(a));
assertFalse(%HasFastHoleyElements(a));
}
function test3() {
var a = Array(1,2,3,4,5,6,7);
assertTrue(%HasFastSmiOrObjectElements(a));
assertFalse(%HasFastHoleyElements(a));
}
function test4() {
var a = [1, 2, 3, 4];
assertTrue(%HasFastSmiElements(a));
assertFalse(%HasFastHoleyElements(a));
var b = [1, 2,, 4];
assertTrue(%HasFastSmiElements(b));
assertTrue(%HasFastHoleyElements(b));
}
function test5() {
var a = [1, 2, 3, 4.5];
assertTrue(%HasFastDoubleElements(a));
assertFalse(%HasFastHoleyElements(a));
var b = [1,, 3.5, 4];
assertTrue(%HasFastDoubleElements(b));
assertTrue(%HasFastHoleyElements(b));
var c = [1, 3.5,, 4];
assertTrue(%HasFastDoubleElements(c));
assertTrue(%HasFastHoleyElements(c));
}
function test6() {
var x = new Object();
var a = [1, 2, 3.5, x];
assertTrue(%HasFastObjectElements(a));
assertFalse(%HasFastHoleyElements(a));
assertEquals(1, a[0]);
assertEquals(2, a[1]);
assertEquals(3.5, a[2]);
assertEquals(x, a[3]);
var b = [1,, 3.5, x];
assertTrue(%HasFastObjectElements(b));
assertTrue(%HasFastHoleyElements(b));
assertEquals(1, b[0]);
assertEquals(undefined, b[1]);
assertEquals(3.5, b[2]);
assertEquals(x, b[3]);
var c = [1, 3.5, x,,];
assertTrue(%HasFastObjectElements(c));
assertTrue(%HasFastHoleyElements(c));
assertEquals(1, c[0]);
assertEquals(3.5, c[1]);
assertEquals(x, c[2]);
assertEquals(undefined, c[3]);
}
function test_with_optimization(f) {
// Run tests in a loop to make sure that inlined Array() constructor runs out
// of new space memory and must fall back on runtime impl.
for (i = 0; i < 25000; ++i) f();
%OptimizeFunctionOnNextCall(f);
for (i = 0; i < 25000; ++i) f(); // Make sure GC happens
}
if (has_packed_elements) {
test_with_optimization(test1);
test_with_optimization(test2);
test_with_optimization(test3);
test_with_optimization(test4);
test_with_optimization(test5);
test_with_optimization(test6);
}
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