Added a test case for bug #22510

diff --git a/tests/lang/bug22510.phpt b/tests/lang/bug22510.phpt
new file mode 100644 (file)
index 0000000..ce5ce01
--- /dev/null
+++ b/tests/lang/bug22510.phpt
@@ -0,0 +1,115 @@
+--TEST--
+Bug #22510 (segfault among complex references)
+--FILE--
+<?php
+class foo 
+{
+       var $list = array();
+
+       function finalize() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               $cl = &$this->list;
+       }
+
+       function &method1() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               return @$this->foo;
+       }
+
+       function &method2() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               return $this->foo;
+       }
+
+       function method3() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               return @$this->foo;
+       }
+}
+
+class bar 
+{
+       function run1() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               $this->instance = new foo();
+               $this->instance->method1($this);
+               $this->instance->method1($this);
+       }
+
+       function run2() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               $this->instance = new foo();
+               $this->instance->method2($this);
+               $this->instance->method2($this);
+       }
+
+       function run3() {
+               print __CLASS__."::".__FUNCTION__."\n";
+               $this->instance = new foo();
+               $this->instance->method3($this);
+               $this->instance->method3($this);
+       }
+}
+
+function ouch(&$bar) {
+       print __FUNCTION__."\n";
+       @$a = $a;
+       $bar->run1();
+}
+
+function ok1(&$bar) {
+       print __FUNCTION__."\n";
+       $bar->run1();
+}
+
+function ok2(&$bar) {
+       print __FUNCTION__."\n";
+       @$a = $a; 
+       $bar->run2();
+}
+
+function ok3(&$bar) {
+       print __FUNCTION__."\n";
+       @$a = $a;
+       $bar->run3();
+}
+
+$bar = &new bar();
+ok1($bar);
+$bar->instance->finalize();
+print "done!\n";
+ok2($bar);
+$bar->instance->finalize();
+print "done!\n";
+ok3($bar);
+$bar->instance->finalize();
+print "done!\n";
+ouch($bar);
+$bar->instance->finalize();
+print "I'm alive!\n";
+?>
+--EXPECT--
+ok1
+bar::run1
+foo::method1
+foo::method1
+foo::finalize
+done!
+ok2
+bar::run2
+foo::method2
+foo::method2
+foo::finalize
+done!
+ok3
+bar::run3
+foo::method3
+foo::method3
+foo::finalize
+done!
+ouch
+bar::run1
+foo::method1
+foo::method1
+foo::finalize
+I'm alive!