1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is JavaScript Engine testing utilities.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s): Brendan Eich
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
//-----------------------------------------------------------------------------
var BUGNUMBER = 351070;
var summary = 'decompilation of let declaration should not change scope';
var actual = '';
var expect = '';
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function test()
{
enterFunc ('test');
printBugNumber(BUGNUMBER);
printStatus (summary);
try
{
var pfx = "(function f() { var n = 2, a = 2; ",
decl = " let a = 3;",
end = " return a; })";
var table = [
["if (!!true)", ""],
["if (!!true)", " else foopy();"],
["if (!true); else", ""],
["do ", " while (false);"],
["while (--n)", ""],
["for (--n;n;--n)", ""],
["for (a in this)", ""],
["with (this)", ""],
];
expect = 3;
for (i = 0; i < table.length; i++) {
var src = pfx + table[i][0] + decl + table[i][1] + end;
print('src: ' + src);
var fun = eval(src);
var testval = fun();
reportCompare(expect, testval, summary + ': ' + src);
if (testval != expect) {
break;
}
print('uneval: ' + uneval(fun));
var declsrc = '(' +
src.slice(1, -1).replace('function f', 'function f' + i) + ')';
print('declsrc: ' + declsrc);
this['f' + i] = eval(declsrc);
print('f' + i + ': ' + this['f' + i]);
}
}
catch(ex)
{
// See https://bugzilla.mozilla.org/show_bug.cgi?id=408957
summary = 'let declaration must be direct child of block or top-level implicit block';
expect = 'SyntaxError';
actual = ex.name;
reportCompare(expect, actual, summary);
}
exitFunc ('test');
}
|
