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Annotation of embedaddon/php/Zend/tests/closure_046.phpt, revision 1.1.1.1

1.1       misho       1: --TEST--
                      2: Closure 046: Rebinding: preservation of previous scope when "static" given as scope arg (same as closure #041)
                      3: --FILE--
                      4: <?php
                      5: 
                      6: /* It's impossible to preserve the previous scope when doing so would break
                      7:  * the invariants that, for non-static closures, having a scope is equivalent
                      8:  * to having a bound instance. */
                      9: 
                     10: $nonstaticUnscoped = function () { var_dump(isset(A::$priv)); var_dump(isset($this)); };
                     11: 
                     12: class A {
                     13:        private static $priv = 7;
                     14:        function getClosure() {
                     15:                return function() { var_dump(isset(A::$priv)); var_dump(isset($this)); };
                     16:        }
                     17: }
                     18: class B extends A {}
                     19: 
                     20: $a = new A();
                     21: $nonstaticScoped = $a->getClosure();
                     22: 
                     23: echo "Before binding", "\n";
                     24: $nonstaticUnscoped(); echo "\n";
                     25: $nonstaticScoped(); echo "\n";
                     26: 
                     27: echo "After binding, no instance", "\n";
                     28: $d = $nonstaticUnscoped->bindTo(null, "static"); $d(); echo "\n";
                     29: $d = $nonstaticScoped->bindTo(null, "static"); $d(); echo "\n";
                     30: //$d should have been turned to static
                     31: $d->bindTo($d);
                     32: 
                     33: echo "After binding, with same-class instance for the bound one", "\n";
                     34: $d = $nonstaticUnscoped->bindTo(new A, "static"); $d(); echo "\n";
                     35: $d = $nonstaticScoped->bindTo(new A, "static"); $d(); echo "\n";
                     36: 
                     37: echo "After binding, with different instance for the bound one", "\n";
                     38: $d = $nonstaticScoped->bindTo(new B, "static"); $d(); echo "\n";
                     39: 
                     40: echo "Done.\n";
                     41: 
                     42: --EXPECTF--
                     43: Before binding
                     44: bool(false)
                     45: bool(false)
                     46: 
                     47: bool(true)
                     48: bool(true)
                     49: 
                     50: After binding, no instance
                     51: bool(false)
                     52: bool(false)
                     53: 
                     54: bool(true)
                     55: bool(false)
                     56: 
                     57: 
                     58: Warning: Cannot bind an instance to a static closure in %s on line %d
                     59: After binding, with same-class instance for the bound one
                     60: bool(false)
                     61: bool(true)
                     62: 
                     63: bool(true)
                     64: bool(true)
                     65: 
                     66: After binding, with different instance for the bound one
                     67: bool(true)
                     68: bool(true)
                     69: 
                     70: Done.