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7298a38552
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
108 lines
3.0 KiB
JavaScript
108 lines
3.0 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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// Fix some corner cases in skipping native methods using caller.
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var net = [];
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var x = 0;
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function collect () {
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function item(operator) {
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binary(operator, 1, false);
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binary(operator, 1, true);
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binary(operator, '{}', false);
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binary(operator, '{}', true);
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binary(operator, '"x"', false);
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binary(operator, '"x"', true);
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unary(operator, "");
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}
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function unary(op, after) {
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// Capture:
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try {
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eval(op + " custom " + after);
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} catch(e) {
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}
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}
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function binary(op, other_side, inverted) {
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// Capture:
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try {
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if (inverted) {
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eval("custom " + op + " " + other_side);
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} else {
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eval(other_side + " " + op + " custom");
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}
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} catch(e) {
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}
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}
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function catcher() {
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var caller = catcher.caller;
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if (/native/i.test(caller) || /ADD/.test(caller)) {
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net[caller] = 0;
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}
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}
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var custom = Object.create(null, {
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toString: { value: catcher },
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length: { get: catcher }
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});
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item('^');
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item('~');
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item('<<');
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item('<');
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item('==');
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item('>>>');
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item('>>');
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item('|');
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item('-');
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item('*');
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item('&');
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item('%');
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item('+');
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item('in');
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item('instanceof');
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unary('{}[', ']');
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unary('delete {}[', ']');
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unary('(function() {}).apply(null, ', ')');
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}
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collect();
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collect();
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collect();
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var keys = 0;
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for (var key in net) {
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print(key);
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keys++;
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}
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assertTrue(keys == 0);
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