1872574f4d
http://compute1.aar:9013/golem/r4502-v8-podivilov-string-char-at2-x64-vs-4502-v8-x64.html Review URL: http://codereview.chromium.org/1750017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
237 lines
7.7 KiB
JavaScript
237 lines
7.7 KiB
JavaScript
// Copyright 2008 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.
|
|
|
|
/**
|
|
* @fileoverview Test indexing on strings with [].
|
|
*/
|
|
|
|
var foo = "Foo";
|
|
assertEquals("Foo", foo);
|
|
assertEquals("F", foo[0]);
|
|
assertEquals("o", foo[1]);
|
|
assertEquals("o", foo[2]);
|
|
|
|
// Test string keyed load IC.
|
|
for (var i = 0; i < 10; i++) {
|
|
assertEquals("F", foo[0]);
|
|
assertEquals("o", foo[1]);
|
|
assertEquals("o", foo[2]);
|
|
assertEquals("F", (foo[0] + "BarBazQuuxFooBarQuux")[0]);
|
|
}
|
|
|
|
assertEquals("F", foo["0" + ""], "string index");
|
|
assertEquals("o", foo["1"], "string index");
|
|
assertEquals("o", foo["2"], "string index");
|
|
|
|
assertEquals("undefined", typeof(foo[3]), "out of range");
|
|
// SpiderMonkey 1.5 fails this next one. So does FF 2.0.6.
|
|
assertEquals("undefined", typeof(foo[-1]), "known failure in SpiderMonkey 1.5");
|
|
assertEquals("undefined", typeof(foo[-2]), "negative index");
|
|
|
|
foo[0] = "f";
|
|
assertEquals("Foo", foo);
|
|
|
|
foo[3] = "t";
|
|
assertEquals("Foo", foo);
|
|
assertEquals("undefined", typeof(foo[3]), "out of range");
|
|
assertEquals("undefined", typeof(foo[-2]), "negative index");
|
|
|
|
var S = new String("foo");
|
|
assertEquals("foo", S);
|
|
assertEquals("f", S[0], "string object");
|
|
assertEquals("f", S["0"], "string object");
|
|
S[0] = 'bente';
|
|
assertEquals("f", S[0], "string object");
|
|
assertEquals("f", S["0"], "string object");
|
|
S[-2] = 'spider';
|
|
assertEquals('spider', S[-2]);
|
|
S[3] = 'monkey';
|
|
assertEquals('monkey', S[3]);
|
|
S['foo'] = 'Fu';
|
|
assertEquals("Fu", S.foo);
|
|
|
|
// In FF this is ignored I think. In V8 it puts a property on the String object
|
|
// but you won't ever see it because it is hidden by the 0th character in the
|
|
// string. The net effect is pretty much the same.
|
|
S["0"] = 'bente';
|
|
assertEquals("f", S[0], "string object");
|
|
assertEquals("f", S["0"], "string object");
|
|
|
|
assertEquals(true, 0 in S, "0 in");
|
|
assertEquals(false, -1 in S, "-1 in");
|
|
assertEquals(true, 2 in S, "2 in");
|
|
assertEquals(true, 3 in S, "3 in");
|
|
assertEquals(false, 4 in S, "3 in");
|
|
|
|
assertEquals(true, "0" in S, '"0" in');
|
|
assertEquals(false, "-1" in S, '"-1" in');
|
|
assertEquals(true, "2" in S, '"2" in');
|
|
assertEquals(true, "3" in S, '"3" in');
|
|
assertEquals(false, "4" in S, '"3" in');
|
|
|
|
assertEquals(true, S.hasOwnProperty(0), "0 hasOwnProperty");
|
|
assertEquals(false, S.hasOwnProperty(-1), "-1 hasOwnProperty");
|
|
assertEquals(true, S.hasOwnProperty(2), "2 hasOwnProperty");
|
|
assertEquals(true, S.hasOwnProperty(3), "3 hasOwnProperty");
|
|
assertEquals(false, S.hasOwnProperty(4), "3 hasOwnProperty");
|
|
|
|
assertEquals(true, S.hasOwnProperty("0"), '"0" hasOwnProperty');
|
|
assertEquals(false, S.hasOwnProperty("-1"), '"-1" hasOwnProperty');
|
|
assertEquals(true, S.hasOwnProperty("2"), '"2" hasOwnProperty');
|
|
assertEquals(true, S.hasOwnProperty("3"), '"3" hasOwnProperty');
|
|
assertEquals(false, S.hasOwnProperty("4"), '"3" hasOwnProperty');
|
|
|
|
assertEquals(true, "foo".hasOwnProperty(0), "foo 0 hasOwnProperty");
|
|
assertEquals(false, "foo".hasOwnProperty(-1), "foo -1 hasOwnProperty");
|
|
assertEquals(true, "foo".hasOwnProperty(2), "foo 2 hasOwnProperty");
|
|
assertEquals(false, "foo".hasOwnProperty(4), "foo 3 hasOwnProperty");
|
|
|
|
assertEquals(true, "foo".hasOwnProperty("0"), 'foo "0" hasOwnProperty');
|
|
assertEquals(false, "foo".hasOwnProperty("-1"), 'foo "-1" hasOwnProperty');
|
|
assertEquals(true, "foo".hasOwnProperty("2"), 'foo "2" hasOwnProperty');
|
|
assertEquals(false, "foo".hasOwnProperty("4"), 'foo "3" hasOwnProperty');
|
|
|
|
//assertEquals(true, 0 in "foo", "0 in");
|
|
//assertEquals(false, -1 in "foo", "-1 in");
|
|
//assertEquals(true, 2 in "foo", "2 in");
|
|
//assertEquals(false, 3 in "foo", "3 in");
|
|
//
|
|
//assertEquals(true, "0" in "foo", '"0" in');
|
|
//assertEquals(false, "-1" in "foo", '"-1" in');
|
|
//assertEquals(true, "2" in "foo", '"2" in');
|
|
//assertEquals(false, "3" in "foo", '"3" in');
|
|
|
|
delete S[3];
|
|
assertEquals("undefined", typeof(S[3]));
|
|
assertEquals(false, 3 in S);
|
|
assertEquals(false, "3" in S);
|
|
|
|
var N = new Number(43);
|
|
assertEquals(43, N);
|
|
N[-2] = "Alpha";
|
|
assertEquals("Alpha", N[-2]);
|
|
N[0] = "Zappa";
|
|
assertEquals("Zappa", N[0]);
|
|
assertEquals("Zappa", N["0"]);
|
|
|
|
var A = ["V", "e", "t", "t", "e", "r"];
|
|
var A2 = (A[0] = "v");
|
|
assertEquals('v', A[0]);
|
|
assertEquals('v', A2);
|
|
|
|
var S = new String("Onkel");
|
|
var S2 = (S[0] = 'o');
|
|
assertEquals('O', S[0]);
|
|
assertEquals('o', S2);
|
|
|
|
var s = "Tante";
|
|
var s2 = (s[0] = 't');
|
|
assertEquals('T', s[0]);
|
|
assertEquals('t', s2);
|
|
|
|
var S2 = (S[-2] = 'o');
|
|
assertEquals('o', S[-2]);
|
|
assertEquals('o', S2);
|
|
|
|
var s2 = (s[-2] = 't');
|
|
assertEquals('undefined', typeof(s[-2]));
|
|
assertEquals('t', s2);
|
|
|
|
// Make sure enough of the one-char string cache is filled.
|
|
var alpha = ['@'];
|
|
for (var i = 1; i < 128; i++) {
|
|
var c = String.fromCharCode(i);
|
|
alpha[i] = c[0];
|
|
}
|
|
var alphaStr = alpha.join("");
|
|
|
|
// Now test chars.
|
|
for (var i = 1; i < 128; i++) {
|
|
assertEquals(alpha[i], alphaStr[i]);
|
|
assertEquals(String.fromCharCode(i), alphaStr[i]);
|
|
}
|
|
|
|
// Test for keyed ic.
|
|
var foo = ['a12', ['a', 2, 'c'], 'a31', 42];
|
|
var results = [1, 2, 3, NaN];
|
|
for (var i = 0; i < 200; ++i) {
|
|
var index = Math.floor(i / 50);
|
|
var receiver = foo[index];
|
|
var expected = results[index];
|
|
var actual = +(receiver[1]);
|
|
assertEquals(expected, actual);
|
|
}
|
|
|
|
var keys = [0, '1', 2, 3.0, -1, 10];
|
|
var str = 'abcd', arr = ['a', 'b', 'c', 'd', undefined, undefined];
|
|
for (var i = 0; i < 300; ++i) {
|
|
var index = Math.floor(i / 50);
|
|
var key = keys[index];
|
|
var expected = arr[index];
|
|
var actual = str[key];
|
|
assertEquals(expected, actual);
|
|
}
|
|
|
|
// Test heap number case.
|
|
var keys = [0, Math.floor(2) * 0.5];
|
|
var str = 'ab', arr = ['a', 'b'];
|
|
for (var i = 0; i < 100; ++i) {
|
|
var index = Math.floor(i / 50);
|
|
var key = keys[index];
|
|
var expected = arr[index];
|
|
var actual = str[key];
|
|
assertEquals(expected, actual);
|
|
}
|
|
|
|
// Test out of range case.
|
|
var keys = [0, -1];
|
|
var str = 'ab', arr = ['a', undefined];
|
|
for (var i = 0; i < 100; ++i) {
|
|
var index = Math.floor(i / 50);
|
|
var key = keys[index];
|
|
var expected = arr[index];
|
|
var actual = str[key];
|
|
assertEquals(expected, actual);
|
|
}
|
|
|
|
var keys = [0, 10];
|
|
var str = 'ab', arr = ['a', undefined];
|
|
for (var i = 0; i < 100; ++i) {
|
|
var index = Math.floor(i / 50);
|
|
var key = keys[index];
|
|
var expected = arr[index];
|
|
var actual = str[key];
|
|
assertEquals(expected, actual);
|
|
}
|
|
|
|
// Test two byte string.
|
|
var str = '\u0427', arr = ['\u0427'];
|
|
for (var i = 0; i < 50; ++i) {
|
|
var expected = arr[0];
|
|
var actual = str[0];
|
|
assertEquals(expected, actual);
|
|
} |