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38 * SUMMARY: Testing functions having duplicate formal parameter names
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
43 * Also see http://bugzilla.mozilla.org/show_bug.cgi?id=124900
45 //-----------------------------------------------------------------------------
48 var summary = 'Testing functions having duplicate formal parameter names';
52 var actualvalues = [];
54 var expectedvalues = [];
61 status = inSection(1);
71 status = inSection(2);
79 return 'a' + x + 'b' + x + 'c' + x ;
81 status = inSection(3);
88 * If the value of the last duplicate parameter is not provided by
89 * the function caller, the value of this parameter is undefined
91 function f4(x,a,b,x,z)
95 status = inSection(4);
102 * f.toString() should preserve any duplicate formal parameter names that exist
107 status = inSection(5);
108 actual = f5.toString().match(/\((.*)\)/)[1];
109 actual = actual.replace(/\s/g, ''); // for definiteness, remove any white space
118 for (var i=0; i<arguments.length; i++)
119 ret.push(arguments[i]);
121 return ret.toString();
123 status = inSection(6);
124 actual = f6(1,2,3,4);
130 * This variation (assigning to x inside f) is from nboyd@atg.com
131 * See http://bugzilla.mozilla.org/show_bug.cgi?id=124900
138 for (var i=0; i<arguments.length; i++)
139 ret.push(arguments[i]);
141 return ret.toString();
143 status = inSection(7);
144 actual = f7(1,2,3,4);
145 expect = '1,2,3,999';
150 * Same as above, but with |var| keyword added -
157 for (var i=0; i<arguments.length; i++)
158 ret.push(arguments[i]);
160 return ret.toString();
162 status = inSection(8);
163 actual = f8(1,2,3,4);
164 expect = '1,2,3,999';
169 //-----------------------------------------------------------------------------
171 //-----------------------------------------------------------------------------
177 statusitems[UBound] = status;
178 actualvalues[UBound] = actual;
179 expectedvalues[UBound] = expect;
188 printStatus(summary);
190 for (var i=0; i<UBound; i++)
192 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);