Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // Fix some corner cases in skipping native methods using caller. |
| 29 | var net = []; |
| 30 | |
| 31 | |
| 32 | var x = 0; |
| 33 | |
| 34 | function collect () { |
| 35 | function item(operator) { |
| 36 | binary(operator, 1, false); |
| 37 | binary(operator, 1, true); |
| 38 | binary(operator, '{}', false); |
| 39 | binary(operator, '{}', true); |
| 40 | binary(operator, '"x"', false); |
| 41 | binary(operator, '"x"', true); |
| 42 | unary(operator, ""); |
| 43 | } |
| 44 | |
| 45 | function unary(op, after) { |
| 46 | // Capture: |
| 47 | try { |
| 48 | eval(op + " custom " + after); |
| 49 | } catch(e) { |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | function binary(op, other_side, inverted) { |
| 54 | // Capture: |
| 55 | try { |
| 56 | if (inverted) { |
| 57 | eval("custom " + op + " " + other_side); |
| 58 | } else { |
| 59 | eval(other_side + " " + op + " custom"); |
| 60 | } |
| 61 | } catch(e) { |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | function catcher() { |
| 66 | var caller = catcher.caller; |
| 67 | if (/native/i.test(caller) || /ADD/.test(caller)) { |
| 68 | net[caller] = 0; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | var custom = Object.create(null, { |
| 73 | toString: { value: catcher }, |
| 74 | length: { get: catcher } |
| 75 | }); |
| 76 | |
| 77 | item('^'); |
| 78 | item('~'); |
| 79 | item('<<'); |
| 80 | item('<'); |
| 81 | item('=='); |
| 82 | item('>>>'); |
| 83 | item('>>'); |
| 84 | item('|'); |
| 85 | item('-'); |
| 86 | item('*'); |
| 87 | item('&'); |
| 88 | item('%'); |
| 89 | item('+'); |
| 90 | item('in'); |
| 91 | item('instanceof'); |
| 92 | unary('{}[', ']'); |
| 93 | unary('delete {}[', ']'); |
| 94 | unary('(function() {}).apply(null, ', ')'); |
| 95 | } |
| 96 | |
| 97 | collect(); |
| 98 | collect(); |
| 99 | collect(); |
| 100 | |
| 101 | var keys = 0; |
| 102 | for (var key in net) { |
| 103 | print(key); |
| 104 | keys++; |
| 105 | } |
| 106 | |
| 107 | assertTrue(keys == 0); |