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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
276 lines
8.7 KiB
JavaScript
276 lines
8.7 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax
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/**
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* @fileoverview Test indexing on strings with [].
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*/
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var foo = "Foo";
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assertEquals("Foo", foo);
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assertEquals("F", foo[0]);
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assertEquals("o", foo[1]);
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assertEquals("o", foo[2]);
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// Test string keyed load IC.
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for (var i = 0; i < 10; i++) {
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assertEquals("F", foo[0]);
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assertEquals("o", foo[1]);
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assertEquals("o", foo[2]);
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assertEquals("F", (foo[0] + "BarBazQuuxFooBarQuux")[0]);
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}
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assertEquals("F", foo["0" + ""], "string index");
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assertEquals("o", foo["1"], "string index");
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assertEquals("o", foo["2"], "string index");
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assertEquals("undefined", typeof(foo[3]), "out of range");
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// SpiderMonkey 1.5 fails this next one. So does FF 2.0.6.
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assertEquals("undefined", typeof(foo[-1]), "known failure in SpiderMonkey 1.5");
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assertEquals("undefined", typeof(foo[-2]), "negative index");
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foo[0] = "f";
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assertEquals("Foo", foo);
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foo[3] = "t";
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assertEquals("Foo", foo);
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assertEquals("undefined", typeof(foo[3]), "out of range");
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assertEquals("undefined", typeof(foo[-2]), "negative index");
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var S = new String("foo");
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assertEquals(Object("foo"), S);
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assertEquals("f", S[0], "string object");
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assertEquals("f", S["0"], "string object");
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S[0] = 'bente';
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assertEquals("f", S[0], "string object");
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assertEquals("f", S["0"], "string object");
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S[-2] = 'spider';
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assertEquals('spider', S[-2]);
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S[3] = 'monkey';
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assertEquals('monkey', S[3]);
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S['foo'] = 'Fu';
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assertEquals("Fu", S.foo);
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// In FF this is ignored I think. In V8 it puts a property on the String object
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// but you won't ever see it because it is hidden by the 0th character in the
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// string. The net effect is pretty much the same.
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S["0"] = 'bente';
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assertEquals("f", S[0], "string object");
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assertEquals("f", S["0"], "string object");
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assertEquals(true, 0 in S, "0 in");
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assertEquals(false, -1 in S, "-1 in");
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assertEquals(true, 2 in S, "2 in");
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assertEquals(true, 3 in S, "3 in");
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assertEquals(false, 4 in S, "3 in");
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assertEquals(true, "0" in S, '"0" in');
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assertEquals(false, "-1" in S, '"-1" in');
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assertEquals(true, "2" in S, '"2" in');
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assertEquals(true, "3" in S, '"3" in');
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assertEquals(false, "4" in S, '"3" in');
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assertEquals(true, S.hasOwnProperty(0), "0 hasOwnProperty");
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assertEquals(false, S.hasOwnProperty(-1), "-1 hasOwnProperty");
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assertEquals(true, S.hasOwnProperty(2), "2 hasOwnProperty");
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assertEquals(true, S.hasOwnProperty(3), "3 hasOwnProperty");
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assertEquals(false, S.hasOwnProperty(4), "3 hasOwnProperty");
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assertEquals(true, S.hasOwnProperty("0"), '"0" hasOwnProperty');
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assertEquals(false, S.hasOwnProperty("-1"), '"-1" hasOwnProperty');
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assertEquals(true, S.hasOwnProperty("2"), '"2" hasOwnProperty');
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assertEquals(true, S.hasOwnProperty("3"), '"3" hasOwnProperty');
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assertEquals(false, S.hasOwnProperty("4"), '"3" hasOwnProperty');
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assertEquals(true, "foo".hasOwnProperty(0), "foo 0 hasOwnProperty");
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assertEquals(false, "foo".hasOwnProperty(-1), "foo -1 hasOwnProperty");
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assertEquals(true, "foo".hasOwnProperty(2), "foo 2 hasOwnProperty");
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assertEquals(false, "foo".hasOwnProperty(4), "foo 3 hasOwnProperty");
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assertEquals(true, "foo".hasOwnProperty("0"), 'foo "0" hasOwnProperty');
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assertEquals(false, "foo".hasOwnProperty("-1"), 'foo "-1" hasOwnProperty');
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assertEquals(true, "foo".hasOwnProperty("2"), 'foo "2" hasOwnProperty');
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assertEquals(false, "foo".hasOwnProperty("4"), 'foo "3" hasOwnProperty');
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//assertEquals(true, 0 in "foo", "0 in");
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//assertEquals(false, -1 in "foo", "-1 in");
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//assertEquals(true, 2 in "foo", "2 in");
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//assertEquals(false, 3 in "foo", "3 in");
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//
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//assertEquals(true, "0" in "foo", '"0" in');
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//assertEquals(false, "-1" in "foo", '"-1" in');
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//assertEquals(true, "2" in "foo", '"2" in');
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//assertEquals(false, "3" in "foo", '"3" in');
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delete S[3];
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assertEquals("undefined", typeof(S[3]));
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assertEquals(false, 3 in S);
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assertEquals(false, "3" in S);
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var N = new Number(43);
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assertEquals(Object(43), N);
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N[-2] = "Alpha";
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assertEquals("Alpha", N[-2]);
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N[0] = "Zappa";
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assertEquals("Zappa", N[0]);
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assertEquals("Zappa", N["0"]);
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var A = ["V", "e", "t", "t", "e", "r"];
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var A2 = (A[0] = "v");
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assertEquals('v', A[0]);
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assertEquals('v', A2);
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var S = new String("Onkel");
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var S2 = (S[0] = 'o');
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assertEquals('O', S[0]);
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assertEquals('o', S2);
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var s = "Tante";
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var s2 = (s[0] = 't');
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assertEquals('T', s[0]);
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assertEquals('t', s2);
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var S2 = (S[-2] = 'o');
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assertEquals('o', S[-2]);
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assertEquals('o', S2);
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var s2 = (s[-2] = 't');
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assertEquals('undefined', typeof(s[-2]));
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assertEquals('t', s2);
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// Make sure enough of the one-char string cache is filled.
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var alpha = ['@'];
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for (var i = 1; i < 128; i++) {
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var c = String.fromCharCode(i);
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alpha[i] = c[0];
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}
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var alphaStr = alpha.join("");
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// Now test chars.
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for (var i = 1; i < 128; i++) {
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assertEquals(alpha[i], alphaStr[i]);
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assertEquals(String.fromCharCode(i), alphaStr[i]);
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}
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// Test for keyed ic.
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var foo = ['a12', ['a', 2, 'c'], 'a31', 42];
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var results = [1, 2, 3, NaN];
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for (var i = 0; i < 200; ++i) {
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var index = Math.floor(i / 50);
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var receiver = foo[index];
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var expected = results[index];
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var actual = +(receiver[1]);
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assertEquals(expected, actual);
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}
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var keys = [0, '1', 2, 3.0, -1, 10];
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var str = 'abcd', arr = ['a', 'b', 'c', 'd', undefined, undefined];
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for (var i = 0; i < 300; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test heap number case.
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var keys = [0, Math.floor(2) * 0.5];
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var str = 'ab', arr = ['a', 'b'];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test negative zero case.
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var keys = [0, -0.0];
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var str = 'ab', arr = ['a', 'a'];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test "not-an-array-index" case.
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var keys = [0, 0.5];
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var str = 'ab', arr = ['a', undefined];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test out of range case.
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var keys = [0, -1];
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var str = 'ab', arr = ['a', undefined];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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var keys = [0, 10];
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var str = 'ab', arr = ['a', undefined];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test out of range with a heap number case.
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var num = Math.floor(4) * 0.5;
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// TODO(mvstanton): figure out a reliable way to get a heap number every time.
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// assertFalse(!%_IsSmi(num));
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var keys = [0, num];
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var str = 'ab', arr = ['a', undefined];
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for (var i = 0; i < 100; ++i) {
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var index = Math.floor(i / 50);
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var key = keys[index];
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var expected = arr[index];
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var actual = str[key];
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assertEquals(expected, actual);
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}
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// Test two byte string.
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var str = '\u0427', arr = ['\u0427'];
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for (var i = 0; i < 50; ++i) {
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var expected = arr[0];
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var actual = str[0];
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assertEquals(expected, actual);
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}
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