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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
101 lines
3.0 KiB
JavaScript
101 lines
3.0 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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// This test fails because we copy the arguments array on indirect
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// access
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function g(f) {
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assertEquals(100, f.arguments = 100); // read-only
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assertEquals(3, f.arguments.length);
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assertEquals(1, f.arguments[0]);
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assertEquals(2, f.arguments[1]);
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assertEquals(3, f.arguments[2]);
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f.arguments[0] = 999;
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f.arguments.extra = 'kallevip';
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}
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function h(f) {
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assertEquals('kallevip', f.arguments.extra);
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return f.arguments;
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}
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// Test function with a materialized arguments array.
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function f0() {
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g(f0);
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var result = h(f0);
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var a = arguments;
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assertEquals(999, a[0]);
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return result;
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}
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// Test function without a materialized arguments array.
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function f1(x) {
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g(f1);
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var result = h(f1);
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assertEquals(999, x);
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return result;
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}
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function test(f) {
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assertTrue(null === f.arguments);
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var args = f(1,2,3);
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assertTrue(null === f.arguments);
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assertEquals(3, args.length);
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assertEquals(999, args[0]);
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assertEquals(2, args[1]);
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assertEquals(3, args[2]);
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assertEquals('kallevip', args.extra);
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}
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test(f0);
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test(f1);
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function w() {
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return q.arguments;
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}
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function q(x, y) {
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x = 2;
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var result = w();
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y = 3;
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return result;
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}
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var a = q(0, 1);
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// x is set locally *before* the last use of arguments before the
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// activation of q is popped from the stack.
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assertEquals(2, a[0]);
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// y is set locally *after* the last use of arguments before the
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// activation of q is popped from the stack.
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assertEquals(1, a[1]);
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