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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
72 lines
2.6 KiB
JavaScript
72 lines
2.6 KiB
JavaScript
// Copyright 2012 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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// Ensure extending an empty packed smi array with a double initializes the
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// array with holes.
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var a = [1,2,3];
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a.length = 0;
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a[0] = 1.4;
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assertEquals(1.4, a[0]);
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assertEquals(undefined, a[1]);
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assertEquals(undefined, a[2]);
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assertEquals(undefined, a[3]);
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// Ensure the double array growstub initializes the array with holes.
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function grow_store(a,i,v) {
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a[i] = v;
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}
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var a2 = [1.3];
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grow_store(a2,1,1.4);
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a2.length = 0;
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grow_store(a2,0,1.5);
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assertEquals(1.5, a2[0]);
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assertEquals(undefined, a2[1]);
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assertEquals(undefined, a2[2]);
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assertEquals(undefined, a2[3]);
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// Check storing objects using the double grow stub.
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var a3 = [1.3];
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var o = {};
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grow_store(a3, 1, o);
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assertEquals(1.3, a3[0]);
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assertEquals(o, a3[1]);
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// Ensure the double array growstub initializes the array with holes.
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function grow_store2(a,i,v) {
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a[i] = v;
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}
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var a4 = [1.3];
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grow_store2(a4,1,1.4);
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a4.length = 0;
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grow_store2(a4,0,1);
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assertEquals(1, a4[0]);
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assertEquals(undefined, a4[1]);
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assertEquals(undefined, a4[2]);
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assertEquals(undefined, a4[3]);
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