Implement variadic function syntax

As per RFC: https://wiki.php.net/rfc/variadics

1 files changed, 42 insertions, 0 deletions

diff --git a/UPGRADING.INTERNALS b/UPGRADING.INTERNALS
index 90202f00f0..d1aca29dc4 100644
--- a/UPGRADING.INTERNALS
+++ b/UPGRADING.INTERNALS
@@ -6,6 +6,7 @@ UPGRADE NOTES - PHP X.Y
   a. Addition of do_operation and compare object handlers
   b. return_value_ptr now always available, RETVAL_ZVAL_FAST macros
   c. POST data handling
+  d. Arginfo changes
 
 2. Build system changes
   a. Unix build system changes
@@ -68,6 +69,47 @@ UPGRADE NOTES - PHP X.Y
   The recommended way to access raw POST data is to open and use a php://input 
   stream wrapper.  It is safe to be used concurrently and more than once. 
 
+  d. Arginfo changes
+
+  The pass_rest_by_reference argument of the ZEND_BEGIN_ARG_INFO and
+  ZEND_BEGIN_ARG_INFO_EX() is no longer used. The value passed to it is ignored.
+
+  Instead a variadic argument is created using ZEND_ARG_VARIADIC_INFO():
+
+      ZEND_ARG_VARIADIC_INFO(0, name) /* pass rest by value */
+      ZEND_ARG_VARIADIC_INFO(1, name) /* pass rest by reference */
+      ZEND_ARG_VARIADIC_INFO(ZEND_SEND_PREFER_REF, name)
+          /* pass rest by prefer-ref */
+
+  ZEND_ARG_VARIADIC_INFO() should only be used for the last argument.
+
+  The following changes were applied to the zend_arg_info struct:
+
+       typedef struct _zend_arg_info {
+           const char *class_name;
+           zend_uint class_name_len;
+           zend_uchar type_hint;
+      +    zend_uchar pass_by_reference;
+           zend_bool allow_null;
+      -    zend_bool pass_by_reference;
+      +    zend_bool is_variadic;
+       } zend_arg_info;
+
+  The following changes were applied to the zend_internal_function_info struct:
+
+       typedef struct _zend_internal_function_info {
+           zend_uint required_num_args;
+           zend_uchar _type_hint;
+           zend_bool return_reference;
+      -    zend_bool pass_rest_by_reference;
+      +    zend_bool _allow_null;
+      +    zend_bool _is_variadic;
+       } zend_internal_function_info;
+
+  The CHECK_ARG_SEND_TYPE(), ARG_MUST_BE_SENT_BY_REF(),
+  ARG_SHOULD_BE_SENT_BY_REF() and ARG_MAY_BE_SENT_BY_REF() macros now assume
+  that the argument passed to them is a zend_function* and that it is non-NULL.
+
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 2. Build system changes
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