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42 * SUMMARY: Testing functions having duplicate formal parameter names
44 * Note: given function f(x,x,x,x) {return x;}; f(1,2,3,4) should return 4.
45 * See ECMA-262 3rd Edition Final Section 10.1.3: Variable Instantiation
47 * Also see http://bugzilla.mozilla.org/show_bug.cgi?id=124900
49 //-----------------------------------------------------------------------------
51 var BUGNUMBER = 124900;
52 var summary = 'Testing functions having duplicate formal parameter names';
56 var actualvalues = [];
58 var expectedvalues = [];
65 status = inSection(1);
75 status = inSection(2);
83 return 'a' + x + 'b' + x + 'c' + x ;
85 status = inSection(3);
92 * If the value of the last duplicate parameter is not provided by
93 * the function caller, the value of this parameter is undefined
95 function f4(x,a,b,x,z)
99 status = inSection(4);
106 * f.toString() should preserve any duplicate formal parameter names that exist
111 status = inSection(5);
112 actual = f5.toString().match(/\((.*)\)/)[1];
113 actual = actual.replace(/\s/g, ''); // for definiteness, remove any white space
122 for (var i=0; i<arguments.length; i++)
123 ret.push(arguments[i]);
125 return ret.toString();
127 status = inSection(6);
128 actual = f6(1,2,3,4);
134 * This variation (assigning to x inside f) is from nboyd@atg.com
135 * See http://bugzilla.mozilla.org/show_bug.cgi?id=124900
142 for (var i=0; i<arguments.length; i++)
143 ret.push(arguments[i]);
145 return ret.toString();
147 status = inSection(7);
148 actual = f7(1,2,3,4);
149 expect = '1,2,3,999';
154 * Same as above, but with |var| keyword added -
161 for (var i=0; i<arguments.length; i++)
162 ret.push(arguments[i]);
164 return ret.toString();
166 status = inSection(8);
167 actual = f8(1,2,3,4);
168 expect = '1,2,3,999';
173 //-----------------------------------------------------------------------------
175 //-----------------------------------------------------------------------------
181 statusitems[UBound] = status;
182 actualvalues[UBound] = actual;
183 expectedvalues[UBound] = expect;
191 printBugNumber(BUGNUMBER);
192 printStatus(summary);
194 for (var i=0; i<UBound; i++)
196 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);