michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  */
michael@0: 
michael@0: function strictThis() { 'use strict'; return this; }
michael@0: 
michael@0: /* Check that calls of flat closure slots get the right |this|. */
michael@0: function flat(g) {
michael@0:     function h() { return g(); }
michael@0:     return h;
michael@0: }
michael@0: assertEq(flat(strictThis)(), undefined);
michael@0: 
michael@0: /* Check that calls up upvars get the right |this|. */
michael@0: function upvar(f) {
michael@0:     function h() {
michael@0:         return f(); 
michael@0:     }
michael@0:     return h();
michael@0: }
michael@0: assertEq(upvar(strictThis), undefined);
michael@0: 
michael@0: /* Check that calls to with-object properties get an appropriate 'this'. */
michael@0: var obj = { f: strictThis };
michael@0: with (obj) {
michael@0:     /* 
michael@0:      * The method won't compile anything containing a 'with', but it can
michael@0:      * compile 'g'.
michael@0:      */
michael@0:     function g() { return f(); }
michael@0:     assertEq(g(), obj);
michael@0: }
michael@0: 
michael@0: reportCompare(true, true);