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42 ECMA Section: 9.9 Type Conversion: ToObject
45 undefined generate a runtime error
46 null generate a runtime error
47 boolean create a new Boolean object whose default
48 value is the value of the boolean.
49 number Create a new Number object whose default
50 value is the value of the number.
51 string Create a new String object whose default
52 value is the value of the string.
53 object Return the input argument (no conversion).
54 Author: christine@netscape.com
58 var VERSION = "ECMA_1";
60 var SECTION = "9.9-1";
62 writeHeaderToLog( SECTION + " Type Conversion: ToObject" );
64 new TestCase( SECTION, "Object(true).valueOf()", true, (Object(true)).valueOf() );
65 new TestCase( SECTION, "typeof Object(true)", "object", typeof Object(true) );
67 new TestCase( SECTION, "Object(false).valueOf()", false, (Object(false)).valueOf() );
68 new TestCase( SECTION, "typeof Object(false)", "object", typeof Object(false) );
70 new TestCase( SECTION, "Object(0).valueOf()", 0, (Object(0)).valueOf() );
71 new TestCase( SECTION, "typeof Object(0)", "object", typeof Object(0) );
73 new TestCase( SECTION, "Object(-0).valueOf()", -0, (Object(-0)).valueOf() );
74 new TestCase( SECTION, "typeof Object(-0)", "object", typeof Object(-0) );
76 new TestCase( SECTION, "Object(1).valueOf()", 1, (Object(1)).valueOf() );
77 new TestCase( SECTION, "typeof Object(1)", "object", typeof Object(1) );
79 new TestCase( SECTION, "Object(-1).valueOf()", -1, (Object(-1)).valueOf() );
80 new TestCase( SECTION, "typeof Object(-1)", "object", typeof Object(-1) );
82 new TestCase( SECTION, "Object(Number.MAX_VALUE).valueOf()", 1.7976931348623157e308, (Object(Number.MAX_VALUE)).valueOf() );
83 new TestCase( SECTION, "typeof Object(Number.MAX_VALUE)", "object", typeof Object(Number.MAX_VALUE) );
85 new TestCase( SECTION, "Object(Number.MIN_VALUE).valueOf()", 5e-324, (Object(Number.MIN_VALUE)).valueOf() );
86 new TestCase( SECTION, "typeof Object(Number.MIN_VALUE)", "object", typeof Object(Number.MIN_VALUE) );
88 new TestCase( SECTION, "Object(Number.POSITIVE_INFINITY).valueOf()", Number.POSITIVE_INFINITY, (Object(Number.POSITIVE_INFINITY)).valueOf() );
89 new TestCase( SECTION, "typeof Object(Number.POSITIVE_INFINITY)", "object", typeof Object(Number.POSITIVE_INFINITY) );
91 new TestCase( SECTION, "Object(Number.NEGATIVE_INFINITY).valueOf()", Number.NEGATIVE_INFINITY, (Object(Number.NEGATIVE_INFINITY)).valueOf() );
92 new TestCase( SECTION, "typeof Object(Number.NEGATIVE_INFINITY)", "object", typeof Object(Number.NEGATIVE_INFINITY) );
94 new TestCase( SECTION, "Object(Number.NaN).valueOf()", Number.NaN, (Object(Number.NaN)).valueOf() );
95 new TestCase( SECTION, "typeof Object(Number.NaN)", "object", typeof Object(Number.NaN) );
97 new TestCase( SECTION, "Object('a string').valueOf()", "a string", (Object("a string")).valueOf() );
98 new TestCase( SECTION, "typeof Object('a string')", "object", typeof (Object("a string")) );
100 new TestCase( SECTION, "Object('').valueOf()", "", (Object("")).valueOf() );
101 new TestCase( SECTION, "typeof Object('')", "object", typeof (Object("")) );
103 new TestCase( SECTION, "Object('\\r\\t\\b\\n\\v\\f').valueOf()", "\r\t\b\n\v\f", (Object("\r\t\b\n\v\f")).valueOf() );
104 new TestCase( SECTION, "typeof Object('\\r\\t\\b\\n\\v\\f')", "object", typeof (Object("\\r\\t\\b\\n\\v\\f")) );
106 new TestCase( SECTION, "Object( '\\\'\\\"\\' ).valueOf()", "\'\"\\", (Object("\'\"\\")).valueOf() );
107 new TestCase( SECTION, "typeof Object( '\\\'\\\"\\' )", "object", typeof Object("\'\"\\") );
109 new TestCase( SECTION, "Object( new MyObject(true) ).valueOf()", true, eval("Object( new MyObject(true) ).valueOf()") );
110 new TestCase( SECTION, "typeof Object( new MyObject(true) )", "object", eval("typeof Object( new MyObject(true) )") );
111 new TestCase( SECTION, "(Object( new MyObject(true) )).toString()", "[object Object]", eval("(Object( new MyObject(true) )).toString()") );
115 function MyObject( value ) {
117 this.valueOf = new Function ( "return this.value" );