From cb0d2775fbbf442a7930bbd69f1136469d6d3337 Mon Sep 17 00:00:00 2001
From: Zeev Suraski <zeev@php.net>
Date: Thu, 21 Jun 2001 14:53:05 +0000
Subject: [PATCH] parent::methodname() now works better with runtime classes
 (fix bug #11589)

---
 Zend/zend_compile.c | 14 ++++++++++----
 Zend/zend_execute.c |  7 +------
 Zend/zend_globals.h |  1 +
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 5c101d97c1..2dd01cb0b4 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -74,6 +74,7 @@ void zend_init_compiler_data_structures(CLS_D)
 	zend_stack_init(&CG(object_stack));
 	zend_stack_init(&CG(declare_stack));
 	CG(active_class_entry) = NULL;
+	CG(active_ce_parent_class_name).value.str.val = NULL;
 	zend_llist_init(&CG(list_llist), sizeof(list_llist_element), NULL, 0);
 	zend_llist_init(&CG(dimension_llist), sizeof(int), NULL, 0);
 	CG(handle_op_arrays) = 1;
@@ -883,11 +884,10 @@ void zend_do_begin_class_member_function_call(znode *class_name, znode *function
 	zend_str_tolower(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len);
 	if ((class_name->u.constant.value.str.len == sizeof("parent")-1)
 		&& !memcmp(class_name->u.constant.value.str.val, "parent", sizeof("parent")-1)
-		&& CG(active_class_entry)
-		&& CG(active_class_entry)->parent) {
+		&& CG(active_ce_parent_class_name).value.str.val) {
 		efree(class_name->u.constant.value.str.val);
-		class_name->u.constant.value.str.len = CG(active_class_entry)->parent->name_length;
-		class_name->u.constant.value.str.val = estrndup(CG(active_class_entry)->parent->name, class_name->u.constant.value.str.len);
+		class_name->u.constant.value.str.len = CG(active_ce_parent_class_name).value.str.len;
+		class_name->u.constant.value.str.val = estrndup(CG(active_ce_parent_class_name).value.str.val, class_name->u.constant.value.str.len);
 	}
 	opline->op1 = *class_name;
 	opline->op2 = *function_name;
@@ -1547,6 +1547,8 @@ void zend_do_begin_class_declaration(znode *class_name, znode *parent_class_name
 		zval *tmp;
 
 		zend_str_tolower(parent_class_name->u.constant.value.str.val, parent_class_name->u.constant.value.str.len);
+		CG(active_ce_parent_class_name).value.str.val = estrndup(parent_class_name->u.constant.value.str.val, parent_class_name->u.constant.value.str.len);
+		CG(active_ce_parent_class_name).value.str.len = parent_class_name->u.constant.value.str.len;
 
 		if (zend_hash_find(CG(class_table), parent_class_name->u.constant.value.str.val, parent_class_name->u.constant.value.str.len+1, (void **) &parent_class)==SUCCESS) {
 			/* copy functions */
@@ -1605,6 +1607,10 @@ void zend_do_end_class_declaration(CLS_D)
 {
 	do_inherit_parent_constructor(CG(active_class_entry));
 	CG(active_class_entry) = NULL;
+	if (CG(active_ce_parent_class_name).value.str.val) {
+		efree(CG(active_ce_parent_class_name).value.str.val);
+		CG(active_ce_parent_class_name).value.str.val = NULL;
+	}
 }
 
 
diff --git a/Zend/zend_execute.c b/Zend/zend_execute.c
index 74f6711748..e3a7066879 100644
--- a/Zend/zend_execute.c
+++ b/Zend/zend_execute.c
@@ -1419,12 +1419,7 @@ binary_assign_op_addr: {
 								object.ptr->refcount++; /* For this pointer */
 							}
 							if (zend_hash_find(EG(class_table), opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len+1, (void **) &ce)==FAILURE) { /* class doesn't exist */
-								/* test for parent:: special case - if it doesn't exist - error out */
-								if (opline->op1.u.constant.value.str.len!=(sizeof("parent")-1)
-									|| memcmp(opline->op1.u.constant.value.str.val, "parent", sizeof("parent")-1)!=0
-									|| !(ce = object.ptr->value.obj.ce->parent)) {
-									zend_error(E_ERROR, "Undefined class name '%s'", opline->op1.u.constant.value.str.val);
-								}
+								zend_error(E_ERROR, "Undefined class name '%s'", opline->op1.u.constant.value.str.val);
 							}
 							active_function_table = &ce->function_table;
 						} else { /* used for member function calls */
diff --git a/Zend/zend_globals.h b/Zend/zend_globals.h
index cd4f20e3f2..e6a6a03b66 100644
--- a/Zend/zend_globals.h
+++ b/Zend/zend_globals.h
@@ -73,6 +73,7 @@ struct _zend_compiler_globals {
 	zend_stack declare_stack;
 
 	zend_class_entry class_entry, *active_class_entry;
+	zval active_ce_parent_class_name;
 
 	/* variables for list() compilation */
 	zend_llist list_llist;
-- 
2.40.0