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42 ECMA Section: 11.1.1 The this keyword
45 The this keyword evaluates to the this value of the execution context.
47 Author: christine@netscape.com
48 Date: 12 november 1997
50 var SECTION = "11.1.1";
51 var VERSION = "ECMA_1";
54 writeHeaderToLog( SECTION + " The this keyword");
56 var GLOBAL_OBJECT = this.toString();
58 // this in global code and eval(this) in global code should return the global object.
60 new TestCase( SECTION,
61 "Global Code: this.toString()",
65 new TestCase( SECTION,
66 "Global Code: eval('this.toString()')",
68 eval('this.toString()') );
70 // this in anonymous code called as a function should return the global object.
72 new TestCase( SECTION,
73 "Anonymous Code: var MYFUNC = new Function('return this.toString()'); MYFUNC()",
75 eval("var MYFUNC = new Function('return this.toString()'); MYFUNC()") );
77 // eval( this ) in anonymous code called as a function should return that function's activation object
79 new TestCase( SECTION,
80 "Anonymous Code: var MYFUNC = new Function('return (eval(\"this.toString()\")'); (MYFUNC()).toString()",
82 eval("var MYFUNC = new Function('return eval(\"this.toString()\")'); (MYFUNC()).toString()") );
84 // this and eval( this ) in anonymous code called as a constructor should return the object
86 new TestCase( SECTION,
87 "Anonymous Code: var MYFUNC = new Function('this.THIS = this'); ((new MYFUNC()).THIS).toString()",
89 eval("var MYFUNC = new Function('this.THIS = this'); ((new MYFUNC()).THIS).toString()") );
91 new TestCase( SECTION,
92 "Anonymous Code: var MYFUNC = new Function('this.THIS = this'); var FUN1 = new MYFUNC(); FUN1.THIS == FUN1",
94 eval("var MYFUNC = new Function('this.THIS = this'); var FUN1 = new MYFUNC(); FUN1.THIS == FUN1") );
96 new TestCase( SECTION,
97 "Anonymous Code: var MYFUNC = new Function('this.THIS = eval(\"this\")'); ((new MYFUNC().THIS).toString()",
99 eval("var MYFUNC = new Function('this.THIS = eval(\"this\")'); ((new MYFUNC()).THIS).toString()") );
101 new TestCase( SECTION,
102 "Anonymous Code: var MYFUNC = new Function('this.THIS = eval(\"this\")'); var FUN1 = new MYFUNC(); FUN1.THIS == FUN1",
104 eval("var MYFUNC = new Function('this.THIS = eval(\"this\")'); var FUN1 = new MYFUNC(); FUN1.THIS == FUN1") );
106 // this and eval(this) in function code called as a function should return the global object.
107 new TestCase( SECTION,
108 "Function Code: ReturnThis()",
112 new TestCase( SECTION,
113 "Function Code: ReturnEvalThis()",
117 // this and eval(this) in function code called as a contructor should return the object.
118 new TestCase( SECTION,
119 "var MYOBJECT = new ReturnThis(); MYOBJECT.toString()",
121 eval("var MYOBJECT = new ReturnThis(); MYOBJECT.toString()") );
123 new TestCase( SECTION,
124 "var MYOBJECT = new ReturnEvalThis(); MYOBJECT.toString()",
126 eval("var MYOBJECT = new ReturnEvalThis(); MYOBJECT.toString()") );
130 function ReturnThis() {
131 return this.toString();
134 function ReturnEvalThis() {
135 return( eval("this.toString()") );