v8/test/mjsunit/array-push.js

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// Copyright 2010 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
// Check pushes with various number of arguments.
(function() {
var a = [];
for (var i = 0; i < 7; i++) {
a = [];
assertEquals(0, a.push());
assertEquals([], a, "after .push()");
assertEquals(1, a.push(1), "length after .push(1)");
assertEquals([1], a, "after .push(1)");
assertEquals(3, a.push(2, 3), "length after .push(2, 3)");
assertEquals([1, 2, 3], a, "after .push(2, 3)");
assertEquals(6, a.push(4, 5, 6),
"length after .push(4, 5, 6)");
assertEquals([1, 2, 3, 4, 5, 6], a,
"after .push(4, 5, 5)");
assertEquals(10, a.push(7, 8, 9, 10),
"length after .push(7, 8, 9, 10)");
assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a,
"after .push(7, 8, 9, 10)");
assertEquals(15, a.push(11, 12, 13, 14, 15),
"length after .push(11, 12, 13, 14, 15)");
assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], a,
"after .push(11, 12, 13, 14, 15)");
assertEquals(21, a.push(16, 17, 18, 19, 20, 21),
"length after .push(16, 17, 18, 19, 20, 21)");
assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21], a,
"after .push(16, 17, 18, 19, 20, 21)");
assertEquals(28, a.push(22, 23, 24, 25, 26, 27, 28),
"length hafter .push(22, 23, 24, 25, 26, 27, 28)");
assertEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28], a,
"after .push(22, 23, 24, 25, 26, 27, 28)");
}
})();
// Excerises various pushes to the array at the end of new space.
(function() {
var a = undefined;
for (var i = 0; i < 7; i++) {
a = [];
assertEquals(1, a.push(1));
assertEquals(2, a.push(2));
assertEquals(3, a.push(3));
assertEquals(4, a.push(4));
assertEquals(5, a.push(5));
assertEquals(6, a.push(6));
assertEquals(7, a.push(7));
assertEquals(8, a.push(8));
assertEquals(9, a.push(9));
assertEquals(10, a.push(10));
assertEquals(11, a.push(11));
assertEquals(12, a.push(12));
assertEquals(13, a.push(13));
assertEquals(14, a.push(14));
assertEquals(15, a.push(15));
assertEquals(16, a.push(16));
assertEquals(17, a.push(17));
assertEquals(18, a.push(18));
assertEquals(19, a.push(19));
assertEquals(20, a.push(20));
assertEquals(21, a.push(21));
assertEquals(22, a.push(22));
assertEquals(23, a.push(23));
assertEquals(24, a.push(24));
assertEquals(25, a.push(25));
assertEquals(26, a.push(26));
assertEquals(27, a.push(27));
assertEquals(28, a.push(28));
assertEquals(29, a.push(29));
}
})();
// Test the case of not JSArray receiver.
// Regression test for custom call generators, see issue 684.
(function() {
var x = {__proto__: []};
for (var i = 0; i < 100; i++) {
x.push("a");
assertEquals(i + 1, x.length, i + 'th iteration');
}
})();
(function() {
function f(a, i) {
a.push(i);
}
var a = [1,2,3];
a.f = function() { return 10; }
f(a, 4);
f(a, 5);
f(a, 6);
f(a, 7);
f(a, {});
assertEquals(10, a.f());
})();
(function() {
function f(a, i) {
a.push(i);
}
%PrepareFunctionForOptimization(f);
var a = [1,2,3];
a.f = function() { return 10; }
f(a, 4);
f(a, 5);
f(a, 6);
%OptimizeFunctionOnNextCall(f);
f(a, 7);
f(a, {});
assertEquals(10, a.f());
})();
(function testDoubleArrayPush() {
var a = [];
var max = 1000;
for (var i = 0; i < max; i++) {
a.push(i + 0.1);
}
assertEquals(max, a.length);
for (var i = 0; i < max; i++) {
assertEquals(i+0.1, a[i]);
}
})();