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1 /* ***** BEGIN LICENSE BLOCK *****
2 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
3 *
4 * The contents of this file are subject to the Netscape Public License
5 * Version 1.1 (the "License"); you may not use this file except in
6 * compliance with the License. You may obtain a copy of the License at
7 * http://www.mozilla.org/NPL/
8 *
9 * Software distributed under the License is distributed on an "AS IS" basis,
10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 * for the specific language governing rights and limitations under the
12 * License.
13 *
14 * The Original Code is JavaScript Engine testing utilities.
15 *
16 * The Initial Developer of the Original Code is Netscape Communications Corp.
17 * Portions created by the Initial Developer are Copyright (C) 2002
18 * the Initial Developer. All Rights Reserved.
19 *
20 * Contributor(s): pschwartau@netscape.com
21 *
22 * Alternatively, the contents of this file may be used under the terms of
23 * either the GNU General Public License Version 2 or later (the "GPL"), or
24 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
25 * in which case the provisions of the GPL or the LGPL are applicable instead
26 * of those above. If you wish to allow use of your version of this file only
27 * under the terms of either the GPL or the LGPL, and not to allow others to
28 * use your version of this file under the terms of the NPL, indicate your
29 * decision by deleting the provisions above and replace them with the notice
30 * and other provisions required by the GPL or the LGPL. If you do not delete
31 * the provisions above, a recipient may use your version of this file under
32 * the terms of any one of the NPL, the GPL or the LGPL.
33 *
34 * ***** END LICENSE BLOCK *****
35 *
36 *
37 * Date: 11 Feb 2002
38 * SUMMARY: Testing functions having duplicate formal parameter names
39 *
40 * Note: given function f(x,x,x,x) {return x;}; f(1,2,3,4) should return 4.
41 * See ECMA-262 3rd Edition Final Section 10.1.3: Variable Instantiation
42 *
43 * Also see http://bugzilla.mozilla.org/show_bug.cgi?id=124900
44 */
45 //-----------------------------------------------------------------------------
46 var UBound = 0;
47 var bug = 124900;
48 var summary = 'Testing functions having duplicate formal parameter names';
49 var status = '';
50 var statusitems = [];
51 var actual = '';
52 var actualvalues = [];
53 var expect= '';
54 var expectedvalues = [];
55
56
57 function f1(x,x)
58 {
59 return x;
60 }
61 status = inSection(1);
62 actual = f1(1,2);
63 expect = 2;
64 addThis();
65
66
67 function f2(x,x,x)
68 {
69 return x*x*x;
70 }
71 status = inSection(2);
72 actual = f2(1,2,3);
73 expect = 27;
74 addThis();
75
76
77 function f3(x,x,x,x)
78 {
79 return 'a' + x + 'b' + x + 'c' + x ;
80 }
81 status = inSection(3);
82 actual = f3(1,2,3,4);
83 expect = 'a4b4c4';
84 addThis();
85
86
87 /*
88 * If the value of the last duplicate parameter is not provided by
89 * the function caller, the value of this parameter is undefined
90 */
91 function f4(x,a,b,x,z)
92 {
93 return x;
94 }
95 status = inSection(4);
96 actual = f4(1,2);
97 expect = undefined;
98 addThis();
99
100
101 /*
102 * f.toString() should preserve any duplicate formal parameter names that exist
103 */
104 function f5(x,x,x,x)
105 {
106 }
107 status = inSection(5);
108 actual = f5.toString().match(/\((.*)\)/)[1];
109 actual = actual.replace(/\s/g, ''); // for definiteness, remove any white space
110 expect = 'x,x,x,x';
111 addThis();
112
113
114 function f6(x,x,x,x)
115 {
116 var ret = [];
117
118 for (var i=0; i<arguments.length; i++)
119 ret.push(arguments[i]);
120
121 return ret.toString();
122 }
123 status = inSection(6);
124 actual = f6(1,2,3,4);
125 expect = '1,2,3,4';
126 addThis();
127
128
129 /*
130 * This variation (assigning to x inside f) is from nboyd@atg.com
131 * See http://bugzilla.mozilla.org/show_bug.cgi?id=124900
132 */
133 function f7(x,x,x,x)
134 {
135 x = 999;
136 var ret = [];
137
138 for (var i=0; i<arguments.length; i++)
139 ret.push(arguments[i]);
140
141 return ret.toString();
142 }
143 status = inSection(7);
144 actual = f7(1,2,3,4);
145 expect = '1,2,3,999';
146 addThis();
147
148
149 /*
150 * Same as above, but with |var| keyword added -
151 */
152 function f8(x,x,x,x)
153 {
154 var x = 999;
155 var ret = [];
156
157 for (var i=0; i<arguments.length; i++)
158 ret.push(arguments[i]);
159
160 return ret.toString();
161 }
162 status = inSection(8);
163 actual = f8(1,2,3,4);
164 expect = '1,2,3,999';
165 addThis();
166
167
168
169 //-----------------------------------------------------------------------------
170 test();
171 //-----------------------------------------------------------------------------
172
173
174
175 function addThis()
176 {
177 statusitems[UBound] = status;
178 actualvalues[UBound] = actual;
179 expectedvalues[UBound] = expect;
180 UBound++;
181 }
182
183
184 function test()
185 {
186 enterFunc('test');
187 printBugNumber(bug);
188 printStatus(summary);
189
190 for (var i=0; i<UBound; i++)
191 {
192 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
193 }
194
195 exitFunc ('test');
196 }