js/src/tests/js1_8_5/extensions/regress-627859.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 // -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     2 // Any copyright is dedicated to the Public Domain.
     3 // http://creativecommons.org/licenses/publicdomain/
     5 var x = 42;
     6 function a() { 
     7     var x;
     8     function b() {
     9         x = 43;
    10         // When jsparse.cpp's CompExprTransplanter transplants the
    11         // comprehension expression 'x' into the scope of the 'for' loop,
    12         // it must not bring the placeholder definition node for the
    13         // assignment to x above along with it. If it does, x won't appear
    14         // in b's lexdeps, we'll never find out that the assignment refers
    15         // to a's x, and we'll generate an assignment to the global x.
    16         (x for (x in []));
    17     }
    18     b();
    19 }
    20 a();
    21 assertEq(x, 42);
    23 reportCompare(true, true);

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