helly           Sun Jul 13 21:42:49 2008 UTC

  Added files:                 (Branch: PHP_5_3)
    /ZendEngine2/tests  exception_007.phpt exception_008.phpt 

  Modified files:              
    /ZendEngine2        zend_exceptions.c zend_exceptions.h zend_objects.c 
    /ZendEngine2/tests  gc_030.phpt 
  Log:
  - MFH Exception handling
  [DOC]
  - Exceptions can be thrown while exceptions are pending, they are linked
  - Exceptions can be handled in __destruct
  - Add optional Exception $previous parameter to
    . Exception::__construct
    . ErrorException::__construct
  
  
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_exceptions.c?r1=1.79.2.6.2.9.2.10&r2=1.79.2.6.2.9.2.11&diff_format=u
Index: ZendEngine2/zend_exceptions.c
diff -u ZendEngine2/zend_exceptions.c:1.79.2.6.2.9.2.10 
ZendEngine2/zend_exceptions.c:1.79.2.6.2.9.2.11
--- ZendEngine2/zend_exceptions.c:1.79.2.6.2.9.2.10     Sun Jul 13 09:32:46 2008
+++ ZendEngine2/zend_exceptions.c       Sun Jul 13 21:42:49 2008
@@ -19,7 +19,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_exceptions.c,v 1.79.2.6.2.9.2.10 2008/07/13 09:32:46 tony2001 Exp 
$ */
+/* $Id: zend_exceptions.c,v 1.79.2.6.2.9.2.11 2008/07/13 21:42:49 helly Exp $ 
*/
 
 #include "zend.h"
 #include "zend_API.h"
@@ -33,13 +33,37 @@
 static zend_object_handlers default_exception_handlers;
 ZEND_API void (*zend_throw_exception_hook)(zval *ex TSRMLS_DC);
 
+void zend_exception_set_previous(zval *add_previous TSRMLS_DC)
+{
+       zval *exception = EG(exception), *previous;
+
+       if (exception == add_previous || !add_previous) {
+               return;
+       }
+       if (Z_TYPE_P(add_previous) != IS_OBJECT && 
!instanceof_function(Z_OBJCE_P(add_previous), default_exception_ce TSRMLS_CC)) {
+               zend_error(E_ERROR, "Cannot set non exception as previous 
exception");
+               return;
+       }
+       if (!exception) {
+               EG(exception) = add_previous;
+               return;
+       }
+       while (exception && exception != add_previous && 
Z_OBJ_HANDLE_P(exception) != Z_OBJ_HANDLE_P(add_previous)) {
+               previous = zend_read_property(default_exception_ce, exception, 
"previous", sizeof("previous")-1, 1 TSRMLS_CC);
+               if (Z_TYPE_P(previous) == IS_NULL) {
+                       zend_update_property(default_exception_ce, exception, 
"previous", sizeof("previous")-1, add_previous TSRMLS_CC);
+                       return;
+               }
+               exception = previous;
+       }
+}
+
 void zend_throw_exception_internal(zval *exception TSRMLS_DC) /* {{{ */
 {
        if (exception != NULL) {
-               if (EG(exception)) {
-                       zend_update_property(default_exception_ce, exception, 
"previous", sizeof("previous")-1, EG(exception) TSRMLS_CC);
-               }
+               zval *previous = EG(exception);
                EG(exception) = exception;
+               zend_exception_set_previous(previous TSRMLS_CC);
        }
        if (!EG(current_execute_data)) {
                zend_error(E_ERROR, "Exception thrown without a stack frame");
@@ -129,8 +153,8 @@
        zval  *object, *previous = NULL;
        int    argc = ZEND_NUM_ARGS(), message_len;
 
-       if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, argc TSRMLS_CC, 
"|slO", &message, &message_len, &code, &previous, default_exception_ce) == 
FAILURE) {
-               zend_error(E_ERROR, "Wrong parameters for Exception([string 
$exception [, long $code ]])");
+       if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, argc TSRMLS_CC, 
"|slO!", &message, &message_len, &code, &previous, default_exception_ce) == 
FAILURE) {
+               zend_error(E_ERROR, "Wrong parameters for Exception([string 
$exception [, long $code [, Exception $previous = NULL]]])");
        }
 
        object = getThis();
@@ -158,8 +182,8 @@
        zval  *object, *previous = NULL;
        int    argc = ZEND_NUM_ARGS(), message_len, filename_len;
 
-       if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, argc TSRMLS_CC, 
"|sllslO", &message, &message_len, &code, &severity, &filename, &filename_len, 
&lineno, &previous, default_exception_ce) == FAILURE) {
-               zend_error(E_ERROR, "Wrong parameters for 
ErrorException([string $exception [, long $code, [ long $severity, [ string 
$filename, [ long $lineno ]]]]])");
+       if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, argc TSRMLS_CC, 
"|sllslO!", &message, &message_len, &code, &severity, &filename, &filename_len, 
&lineno, &previous, default_exception_ce) == FAILURE) {
+               zend_error(E_ERROR, "Wrong parameters for 
ErrorException([string $exception [, long $code, [ long $severity, [ string 
$filename, [ long $lineno  [, Exception $previous = NULL]]]]]])");
        }
 
        object = getThis();
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_exceptions.h?r1=1.21.2.1.2.2.2.1&r2=1.21.2.1.2.2.2.2&diff_format=u
Index: ZendEngine2/zend_exceptions.h
diff -u ZendEngine2/zend_exceptions.h:1.21.2.1.2.2.2.1 
ZendEngine2/zend_exceptions.h:1.21.2.1.2.2.2.2
--- ZendEngine2/zend_exceptions.h:1.21.2.1.2.2.2.1      Mon Dec 31 07:17:04 2007
+++ ZendEngine2/zend_exceptions.h       Sun Jul 13 21:42:49 2008
@@ -19,13 +19,15 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_exceptions.h,v 1.21.2.1.2.2.2.1 2007/12/31 07:17:04 sebastian Exp 
$ */
+/* $Id: zend_exceptions.h,v 1.21.2.1.2.2.2.2 2008/07/13 21:42:49 helly Exp $ */
 
 #ifndef ZEND_EXCEPTIONS_H
 #define ZEND_EXCEPTIONS_H
 
 BEGIN_EXTERN_C()
 
+ZEND_API void zend_exception_set_previous(zval *add_previous TSRMLS_DC);
+
 void zend_throw_exception_internal(zval *exception TSRMLS_DC);
 
 void zend_register_default_exception(TSRMLS_D);
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_objects.c?r1=1.56.2.3.2.6.2.3&r2=1.56.2.3.2.6.2.4&diff_format=u
Index: ZendEngine2/zend_objects.c
diff -u ZendEngine2/zend_objects.c:1.56.2.3.2.6.2.3 
ZendEngine2/zend_objects.c:1.56.2.3.2.6.2.4
--- ZendEngine2/zend_objects.c:1.56.2.3.2.6.2.3 Tue Mar 18 14:10:43 2008
+++ ZendEngine2/zend_objects.c  Sun Jul 13 21:42:49 2008
@@ -17,7 +17,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_objects.c,v 1.56.2.3.2.6.2.3 2008/03/18 14:10:43 felipe Exp $ */
+/* $Id: zend_objects.c,v 1.56.2.3.2.6.2.4 2008/07/13 21:42:49 helly Exp $ */
 
 #include "zend.h"
 #include "zend_globals.h"
@@ -99,20 +99,7 @@
                old_exception = EG(exception);
                EG(exception) = NULL;
                zend_call_method_with_0_params(&obj, object->ce, &destructor, 
ZEND_DESTRUCTOR_FUNC_NAME, NULL);
-               if (old_exception) {
-                       if (EG(exception)) {
-                               zend_class_entry *default_exception_ce = 
zend_exception_get_default(TSRMLS_C);
-                               zval *file = 
zend_read_property(default_exception_ce, old_exception, "file", 
sizeof("file")-1, 1 TSRMLS_CC);
-                               zval *line = 
zend_read_property(default_exception_ce, old_exception, "line", 
sizeof("line")-1, 1 TSRMLS_CC);
-
-                               zval_ptr_dtor(&obj);
-                               zval_ptr_dtor(&EG(exception));
-                               EG(exception) = old_exception;
-                               zend_error(E_ERROR, "Ignoring exception from 
%s::__destruct() while an exception is already active (Uncaught %s in %s on 
line %ld)", 
-                                       object->ce->name, 
Z_OBJCE_P(old_exception)->name, Z_STRVAL_P(file), Z_LVAL_P(line));
-                       }
-                       EG(exception) = old_exception;
-               }
+               zend_exception_set_previous(old_exception TSRMLS_CC);
                zval_ptr_dtor(&obj);
        }
 }
http://cvs.php.net/viewvc.cgi/ZendEngine2/tests/gc_030.phpt?r1=1.1.2.1&r2=1.1.2.2&diff_format=u
Index: ZendEngine2/tests/gc_030.phpt
diff -u ZendEngine2/tests/gc_030.phpt:1.1.2.1 
ZendEngine2/tests/gc_030.phpt:1.1.2.2
--- ZendEngine2/tests/gc_030.phpt:1.1.2.1       Tue Jul  8 08:16:09 2008
+++ ZendEngine2/tests/gc_030.phpt       Sun Jul 13 21:42:49 2008
@@ -18,4 +18,14 @@
 gc_collect_cycles();
 ?>
 --EXPECTF--
-Fatal error: Ignoring exception from foo::__destruct() while an exception is 
already active (Uncaught Exception in %sgc_030.php on line %d) in %sgc_030.php 
on line %d
+Fatal error: Uncaught exception 'Exception' with message 'foobar' in 
%sgc_030.php:%d
+Stack trace:
+#0 [internal function]: foo->__destruct()
+#1 %sgc_030.php(%d): gc_collect_cycles()
+#2 {main}
+
+Next exception 'Exception' with message 'foobar' in %sgc_030.php:%d
+Stack trace:
+#0 %sgc_030.php(%d): foo->__destruct()
+#1 {main}
+  thrown in %sgc_030.php on line %d
\ No newline at end of file

http://cvs.php.net/viewvc.cgi/ZendEngine2/tests/exception_007.phpt?view=markup&rev=1.1
Index: ZendEngine2/tests/exception_007.phpt
+++ ZendEngine2/tests/exception_007.phpt
--TEST--
Setting previous exception
--FILE--
<?php

try {
        try {
                throw new Exception("First", 1, new Exception("Another", 0, 
NULL));
        }
        catch (Exception $e) {
                throw new Exception("Second", 2, $e);
        }
}
catch (Exception $e) {
        throw new Exception("Third", 3, $e);
}

?>
===DONE===
--EXPECTF--
Fatal error: Uncaught exception 'Exception' with message 'Another' in 
%sexception_007.php:%d
Stack trace:
#0 {main}

Next exception 'Exception' with message 'First' in %sexception_007.php:%d
Stack trace:
#0 {main}

Next exception 'Exception' with message 'Second' in %sexception_007.php:%d
Stack trace:
#0 {main}

Next exception 'Exception' with message 'Third' in %sexception_007.php:%d
Stack trace:
#0 {main}
  thrown in %sexception_007.php on line %d

http://cvs.php.net/viewvc.cgi/ZendEngine2/tests/exception_008.phpt?view=markup&rev=1.1
Index: ZendEngine2/tests/exception_008.phpt
+++ ZendEngine2/tests/exception_008.phpt
--TEST--
Exception in __destruct while exception is pending
--FILE--
<?php

class TestFirst
{
        function __destruct() {
                throw new Exception("First");
        }
}

class TestSecond
{
        function __destruct() {
                throw new Exception("Second");          
        }
}

$ar = array(new TestFirst, new TestSecond);

unset($ar);

?>
===DONE===
--EXPECTF--
Fatal error: Uncaught exception 'Exception' with message 'First' in 
%sexception_008.php:%d
Stack trace:
#0 %sexception_008.php(%d): TestFirst->__destruct()
#1 {main}

Next exception 'Exception' with message 'Second' in %sexception_008.php:%d
Stack trace:
#0 %sexception_008.php(%d): TestSecond->__destruct()
#1 {main}
  thrown in %sexception_008.php on line %d

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