Make some exception properties typed

Zend/tests/bug50005.phpt

@@ -5,7 +5,7 @@ Bug #50005 (Throwing through Reflection modified Exception object makes segmenta
 
 class a extends exception {
     public function __construct() {
-        $this->file = null;
+        $this->file = "";
     }
 }
 

Zend/tests/bug64821.1.phpt

@@ -8,7 +8,7 @@ class a extends exception {
         $this->message = NULL;
         $this->string  = NULL;
         $this->code    = array();
-        $this->line = "hello";
+        $this->line = 0;
     }
 }
 

Zend/tests/bug64821.2.phpt

@@ -5,7 +5,7 @@ Bug #64821 Custom Exceptions crash when internal properties overridden (variatio
 
 class a extends exception {
     public function __construct() {
-        $this->line = array();
+        $this->line = 0;
     }
 }
 

Zend/tests/bug64821.3.phpt

@@ -5,8 +5,8 @@ Bug #64821 Custom Exceptions crash when internal properties overridden (variatio
 
 class a extends exception {
     public function __construct() {
-        $this->line = array();
-        $this->file = NULL;
+        $this->line = 0;
+        $this->file = "";
     }
 }
 

Zend/zend_exceptions.c

@@ -757,8 +757,11 @@ void zend_register_default_exception(void) /* {{{ */
 
 	zend_ce_error_exception = register_class_ErrorException(zend_ce_exception);
 	zend_ce_error_exception->create_object = zend_error_exception_new;
+
 	/* Declared manually because it uses constant E_ERROR. */
-	zend_declare_property_long(zend_ce_error_exception, "severity", sizeof("severity")-1, E_ERROR, ZEND_ACC_PROTECTED);
+	zval severity_default_value;
+	ZVAL_LONG(&severity_default_value, E_ERROR);
+	zend_declare_typed_property(zend_ce_error_exception, ZSTR_KNOWN(ZEND_STR_SEVERITY), &severity_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_LONG));
 
 	zend_ce_error = register_class_Error(zend_ce_throwable);
 	zend_ce_error->create_object = zend_default_exception_new;

Zend/zend_exceptions.stub.php

@@ -22,16 +22,13 @@ public function getTraceAsString(): string;
 
 class Exception implements Throwable
 {
-    /** @var string */
+    /** @var string Intentionally left untyped for BC reasons */
     protected $message = "";
-    /** @var string */
-    private $string = "";
-    /** @var int */
+    private string $string = "";
+    /** @var int Intentionally left untyped for BC reasons */
     protected $code = 0;
-    /** @var string|null */
-    protected $file = null;
-    /** @var int|null */
-    protected $line = null;
+    protected string $file = "";
+    protected int $line = 0;
     private array $trace = [];
     private ?Throwable $previous = null;
 
@@ -62,8 +59,7 @@ public function __toString(): string {}
 
 class ErrorException extends Exception
 {
-    /** @var int */
-    protected $severity = E_ERROR;
+    protected int $severity = E_ERROR;
 
     public function __construct(
         string $message = "",
@@ -79,16 +75,13 @@ final public function getSeverity(): int {}
 
 class Error implements Throwable
 {
-    /** @var string */
+    /** @var string Intentionally left untyped for BC reasons */
     protected $message = "";
-    /** @var string */
-    private $string = "";
-    /** @var int */
+    private string $string = "";
+    /** @var int Intentionally left untyped for BC reasons */
     protected $code = 0;
-    /** @var string|null */
-    protected $file = null;
-    /** @var int|null */
-    protected $line = null;
+    protected string $file = "";
+    protected int $line;
     private array $trace = [];
     private ?Throwable $previous = null;
 

Zend/zend_exceptions_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: ef8c275a543d67fd96a775b0b18098ccdb428285 */
+ * Stub hash: 9a9ce2975a7449a621d364beca646525fc56b294 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_class_Throwable_getMessage, 0, 0, IS_STRING, 0)
 ZEND_END_ARG_INFO()
@@ -214,7 +214,7 @@ static zend_class_entry *register_class_Exception(zend_class_entry *class_entry_
 	zval property_string_default_value;
 	ZVAL_EMPTY_STRING(&property_string_default_value);
 	zend_string *property_string_name = zend_string_init("string", sizeof("string") - 1, 1);
-	zend_declare_property_ex(class_entry, property_string_name, &property_string_default_value, ZEND_ACC_PRIVATE, NULL);
+	zend_declare_typed_property(class_entry, property_string_name, &property_string_default_value, ZEND_ACC_PRIVATE, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_STRING));
 	zend_string_release(property_string_name);
 
 	zval property_code_default_value;
@@ -224,15 +224,15 @@ static zend_class_entry *register_class_Exception(zend_class_entry *class_entry_
 	zend_string_release(property_code_name);
 
 	zval property_file_default_value;
-	ZVAL_NULL(&property_file_default_value);
+	ZVAL_EMPTY_STRING(&property_file_default_value);
 	zend_string *property_file_name = zend_string_init("file", sizeof("file") - 1, 1);
-	zend_declare_property_ex(class_entry, property_file_name, &property_file_default_value, ZEND_ACC_PROTECTED, NULL);
+	zend_declare_typed_property(class_entry, property_file_name, &property_file_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_STRING));
 	zend_string_release(property_file_name);
 
 	zval property_line_default_value;
-	ZVAL_NULL(&property_line_default_value);
+	ZVAL_LONG(&property_line_default_value, 0);
 	zend_string *property_line_name = zend_string_init("line", sizeof("line") - 1, 1);
-	zend_declare_property_ex(class_entry, property_line_name, &property_line_default_value, ZEND_ACC_PROTECTED, NULL);
+	zend_declare_typed_property(class_entry, property_line_name, &property_line_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_LONG));
 	zend_string_release(property_line_name);
 
 	zval property_trace_default_value;
@@ -278,7 +278,7 @@ static zend_class_entry *register_class_Error(zend_class_entry *class_entry_Thro
 	zval property_string_default_value;
 	ZVAL_EMPTY_STRING(&property_string_default_value);
 	zend_string *property_string_name = zend_string_init("string", sizeof("string") - 1, 1);
-	zend_declare_property_ex(class_entry, property_string_name, &property_string_default_value, ZEND_ACC_PRIVATE, NULL);
+	zend_declare_typed_property(class_entry, property_string_name, &property_string_default_value, ZEND_ACC_PRIVATE, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_STRING));
 	zend_string_release(property_string_name);
 
 	zval property_code_default_value;
@@ -288,15 +288,15 @@ static zend_class_entry *register_class_Error(zend_class_entry *class_entry_Thro
 	zend_string_release(property_code_name);
 
 	zval property_file_default_value;
-	ZVAL_NULL(&property_file_default_value);
+	ZVAL_EMPTY_STRING(&property_file_default_value);
 	zend_string *property_file_name = zend_string_init("file", sizeof("file") - 1, 1);
-	zend_declare_property_ex(class_entry, property_file_name, &property_file_default_value, ZEND_ACC_PROTECTED, NULL);
+	zend_declare_typed_property(class_entry, property_file_name, &property_file_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_STRING));
 	zend_string_release(property_file_name);
 
 	zval property_line_default_value;
-	ZVAL_NULL(&property_line_default_value);
+	ZVAL_UNDEF(&property_line_default_value);
 	zend_string *property_line_name = zend_string_init("line", sizeof("line") - 1, 1);
-	zend_declare_property_ex(class_entry, property_line_name, &property_line_default_value, ZEND_ACC_PROTECTED, NULL);
+	zend_declare_typed_property(class_entry, property_line_name, &property_line_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_LONG));
 	zend_string_release(property_line_name);
 
 	zval property_trace_default_value;

ext/mysqli/mysqli.stub.php

@@ -599,8 +599,7 @@ public function next(): bool {}
 
 final class mysqli_sql_exception extends RuntimeException
 {
-    /** @var string */
-    protected $sqlstate = "00000";
+    protected string $sqlstate = "00000";
 }
 
 function mysqli_affected_rows(mysqli $mysql): int|string {}

ext/mysqli/mysqli_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 14c5c4960e70f5b38fc6c4f4403804cc28147b0b */
+ * Stub hash: b0232d18f570208d673ad7535ca60997e038acb8 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_mysqli_affected_rows, 0, 1, MAY_BE_LONG|MAY_BE_STRING)
 	ZEND_ARG_OBJ_INFO(0, mysql, mysqli, 0)
@@ -1356,7 +1356,7 @@ static zend_class_entry *register_class_mysqli_sql_exception(zend_class_entry *c
 	zend_string *property_sqlstate_default_value_str = zend_string_init("00000", sizeof("00000") - 1, 1);
 	ZVAL_STR(&property_sqlstate_default_value, property_sqlstate_default_value_str);
 	zend_string *property_sqlstate_name = zend_string_init("sqlstate", sizeof("sqlstate") - 1, 1);
-	zend_declare_property_ex(class_entry, property_sqlstate_name, &property_sqlstate_default_value, ZEND_ACC_PROTECTED, NULL);
+	zend_declare_typed_property(class_entry, property_sqlstate_name, &property_sqlstate_default_value, ZEND_ACC_PROTECTED, NULL, (zend_type) ZEND_TYPE_INIT_MASK(MAY_BE_STRING));
 	zend_string_release(property_sqlstate_name);
 
 	return class_entry;

ext/soap/tests/bug73452.phpt

@@ -5,7 +5,7 @@ soap
 --FILE--
 <?php
 
-$data = 'O:9:"SoapFault":4:{s:9:"faultcode";i:4298448493;s:11:"faultstring";i:4298448543;s:7:"'."\0*\0".'file";i:4298447319;s:7:"'."\0*\0".'line";s:4:"ryat";}';
+$data = 'O:9:"SoapFault":4:{s:9:"faultcode";i:4298448493;s:11:"faultstring";i:4298448543;s:7:"'."\0*\0".'file";s:0:"";s:7:"'."\0*\0".'line";i:0;}';
 echo unserialize($data);
 
 ?>

ext/standard/tests/serialize/bug69793.phpt

@@ -2,7 +2,7 @@
 Bug #69793: Remotely triggerable stack exhaustion via recursive method calls
 --FILE--
 <?php
-$e = unserialize('O:9:"Exception":7:{s:17:"'."\0".'Exception'."\0".'string";s:1:"a";s:7:"'."\0".'*'."\0".'code";i:0;s:7:"'."\0".'*'."\0".'file";R:1;s:7:"'."\0".'*'."\0".'line";i:1337;s:16:"'."\0".'Exception'."\0".'trace";a:0:{}s:19:"'."\0".'Exception'."\0".'previous";i:10;s:10:"'."\0".'*'."\0".'message";N;}');
+$e = unserialize('O:9:"Exception":7:{s:17:"'."\0".'Exception'."\0".'string";s:1:"a";s:7:"'."\0".'*'."\0".'code";i:0;s:7:"'."\0".'*'."\0".'file";s:0:"";s:7:"'."\0".'*'."\0".'line";i:1337;s:16:"'."\0".'Exception'."\0".'trace";a:0:{}s:19:"'."\0".'Exception'."\0".'previous";i:10;s:10:"'."\0".'*'."\0".'message";N;}');
 
 var_dump($e."");
 ?>

ext/standard/tests/serialize/bug72663_2.phpt

@@ -13,15 +13,15 @@ class obj implements Serializable {
     }
 }
 
-$inner = 'a:1:{i:0;O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";R:4;}';
+$inner = 'a:1:{i:0;O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";s:0:"";}';
 $exploit = 'a:2:{i:0;C:3:"obj":'.strlen($inner).':{'.$inner.'}i:1;R:4;}';
 var_dump(unserialize($exploit));
 
 ?>
 --EXPECTF--
 Notice: unserialize(): Unexpected end of serialized data in %s on line %d
 
-Notice: unserialize(): Error at offset 46 of 47 bytes in %s on line %d
+Notice: unserialize(): Error at offset 49 of 50 bytes in %s on line %d
 
-Notice: unserialize(): Error at offset 79 of 80 bytes in %s on line %d
+Notice: unserialize(): Error at offset 82 of 83 bytes in %s on line %d
 bool(false)

ext/standard/tests/serialize/bug72663_3.phpt

@@ -7,7 +7,7 @@ session.serialize_handler=php_serialize
 --FILE--
 <?php
 session_start();
-$sess = 'O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";R:1;}';
+$sess = 'O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";s:0:"";}';
 session_decode($sess);
 var_dump($_SESSION);
 ?>

ext/standard/tests/strings/bug72663.phpt

@@ -12,7 +12,7 @@ class obj implements Serializable {
     }
 }
 
-$inner = 'a:1:{i:0;O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";R:4;}';
+$inner = 'a:1:{i:0;O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";s:0:"";}';
 $exploit = 'a:2:{i:0;C:3:"obj":'.strlen($inner).':{'.$inner.'}i:1;R:4;}';
 
 var_dump(unserialize($exploit));
@@ -21,8 +21,8 @@ DONE
 --EXPECTF--
 Notice: unserialize(): Unexpected end of serialized data in %sbug72663.php on line %d
 
-Notice: unserialize(): Error at offset 46 of 47 bytes in %sbug72663.php on line %d
+Notice: unserialize(): Error at offset 49 of 50 bytes in %sbug72663.php on line %d
 
-Notice: unserialize(): Error at offset 79 of 80 bytes in %sbug72663.php on line %d
+Notice: unserialize(): Error at offset 82 of 83 bytes in %sbug72663.php on line %d
 bool(false)
 DONE

ext/standard/tests/strings/bug72663_2.phpt

@@ -11,7 +11,7 @@ if (!extension_loaded("session")) {
 
 ini_set('session.serialize_handler', 'php_serialize');
 session_start();
-$sess = 'O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";R:1;}';
+$sess = 'O:9:"Exception":2:{s:7:"'."\0".'*'."\0".'file";s:0:"";}';
 session_decode($sess);
 var_dump($_SESSION);
 ?>

sapi/cli/tests/005.phpt

@@ -37,7 +37,7 @@ string(183) "Class [ <internal:Core> class stdClass ] {
 }
 
 "
-string(2188) "Class [ <internal:Core> class Exception implements Throwable, Stringable ] {
+string(2201) "Class [ <internal:Core> class Exception implements Throwable, Stringable ] {
 
   - Constants [0] {
   }
@@ -50,10 +50,10 @@ string(2188) "Class [ <internal:Core> class Exception implements Throwable, Stri
 
   - Properties [7] {
     Property [ protected $message = '' ]
-    Property [ private $string = '' ]
+    Property [ private string $string = '' ]
     Property [ protected $code = 0 ]
-    Property [ protected $file = NULL ]
-    Property [ protected $line = NULL ]
+    Property [ protected string $file = '' ]
+    Property [ protected int $line = 0 ]
     Property [ private array $trace = Array ]
     Property [ private ?Throwable $previous = NULL ]
   }

tests/lang/038.phpt

@@ -5,7 +5,7 @@ Convert warnings to exceptions
 
 class MyException extends Exception
 {
-    function __construct($errstr, $errno=0, $errfile='', $errline='')
+    function __construct($errstr, $errno=0, $errfile='', $errline=0)
     {
         parent::__construct($errstr, $errno);
         $this->file = $errfile;