File indexing completed on 2024-04-28 15:28:37

 // check value of arguments inside recursion
 
 var expected = [null,99,1,2,3,3,2,1,99,null];
 var expno = 0;
 
 var x = 0;
 shouldBe("mf.arguments", "expected[expno++]");
 function mf(a,b) {
   shouldBe("mf.arguments[0]", "expected[expno++]");
   x++;
   if (x < 4)
     mf(x,1);
   shouldBe("mf.arguments[0]", "expected[expno++]");
   return b;
 }
 mf(99);
 shouldBe("mf.arguments", "expected[expno++]");
 
 
 // check internal properties of arguments
 
 // Delete
 
 
 // DontEnum
 var foundArgs = false;
 
 var ReadOnlyOK = false;
 var DontDeleteOK = false;
 var DontEnumOK = false;
 function f(a,b,c) {
 
   // ReadOnly
   var newargs = new Object();
   var oldargs = f.arguments;
   f.arguments = newargs;
   ReadOnlyOK = (f.arguments == oldargs);
 
   // DontDelete
   DontDeleteOK = !delete(f.arguments);
   if (f.arguments != oldargs)
     DontDeleteOK = false;
 
   // DontEnum
   var foundArgs = false;
   for (i in f) {
     if (f == "arguments")
       foundArgs = true;
   }
   DontEnumOK = !foundArgs;
 }
 f(1,2,3);
 shouldBeTrue("ReadOnlyOK");
 shouldBeTrue("DontDeleteOK");
 shouldBeTrue("DontEnumOK");
 
 // Check that parameter variables are bound to the corresponding
 // elements in the arguments array
 var arg0 = null;
 var arg1 = null;
 var arg2 = null;
 var newarg0 = null;
 var newarg1 = null;
 var newarg2 = null;
 var newx = null;
 var arglength = 0;
 
 function dupargs(x,x,x)
 {
   arg0 = arguments[0];
   arg1 = arguments[1];
   arg2 = arguments[2];
   arglength = arguments.length;
   x = 999;
   newarg0 = arguments[0];
   newarg1 = arguments[1];
   newarg2 = arguments[2];
   arguments[2] = 888;
   newx = x;
 }
 
 dupargs(1,2,3);
 
 shouldBe("arg0","1");
 shouldBe("arg1","2");
 shouldBe("arg2","3");
 shouldBe("arglength","3");
 shouldBe("newarg0","1");
 shouldBe("newarg1","2");
 shouldBe("newarg2","999");
 shouldBe("newx","888");
 
 
 // Make sure we pass the right 'this'..
 x = 1;
 
 function f1() {
   function f2() {
     v = this.x; // Can't use local stuff directly in eval
     shouldBe("v", "1");
   }
 
   var x = 3;
   f2();
 }
 
 f1();
 
 // Checks for arguments array symbol resolution
 function funnyArgUse(x) {
     arguments.__proto__["0x0"] = 50;
 
     argBlank = arguments[""];
     argHex   = arguments["0x0"];
     argSpace = arguments[" "];
     argTrail = arguments["0 "];
     argOK    = arguments["0"];
 }
 
 funnyArgUse(42);
 shouldBe('argBlank', 'undefined');
 shouldBe('argHex', '50');
 shouldBe('argSpace', 'undefined');
 shouldBe('argTrail', 'undefined');
 shouldBe('argOK', '42');
 
 debug("DONE");