regress-509354.js (1445B)
1 /* 2 * Any copyright is dedicated to the Public Domain. 3 * http://creativecommons.org/licenses/publicdomain/ 4 * Contributor: Jason Orendorff <jorendorff@mozilla.com> 5 */ 6 7 // SKIP test262 export 8 // Behavior is not currently specified. 9 10 // Decompile destructuring argument named `arguments` correctly. 11 var actual = "" + function ([arguments]) {return arguments;}; 12 compareSource('function ([arguments]) {return arguments;}', actual, "part 1"); 13 14 // Make sure the 'arguments' argument actually works. 15 var f = function ([arguments]) {return arguments + 1;}; 16 reportCompare(3.25, f([2.25]), "part 2"); 17 18 // Throw SyntaxError when `arguments` appears twice in a destructuring parameter. 19 actual = "no exception"; 20 try { 21 eval('(function ([arguments, arguments]) {return arguments();})'); 22 } catch (exc) { 23 actual = exc.name; 24 } 25 reportCompare("SyntaxError", actual, "part 3"); 26 27 // And again... 28 actual = "no exception"; 29 try { 30 eval('(function ([a, b, arguments, d], [e, f, arguments]) {return arguments();})'); 31 } catch (exc) { 32 actual = exc.name; 33 } 34 reportCompare("SyntaxError", actual, "part 4"); 35 36 // The original test case from bug 509354. Don't crash. 37 try { 38 eval('print(function([arguments,arguments,arguments,arguments,arguments,' + 39 'arguments,arguments,arguments,arguments,arguments,arguments,' + 40 'arguments,arguments,arguments,arguments,arguments]){})'); 41 } catch (exc) { 42 } 43 reportCompare("no crash", "no crash", "part 5");