com php-src: Fix AST start lineno for list nodes: Zend/zend_a st.c

Commit:    183cd048f18fa4b04fb30448a84a54cee80a2491
Author:    Nikita Popov <[email protected]>         Fri, 17 Mar 2017 13:34:18 +0100
Parents:   0c8ad36d924c6ba208eefc02ae09d84cbd683959
Branches:  PHP-7.0 PHP-7.1 master

Link:       http://git.php.net/?p=php-src.git;a=commitdiff;h=183cd048f18fa4b04fb30448a84a54cee80a2491

Log:
Fix AST start lineno for list nodes

If the node is initialized with children, check if a child has a
lower start lineno, similar to what we do for fixed-sized nodes
as well.

Changed paths:
  M  Zend/zend_ast.c


Diff:
diff --git a/Zend/zend_ast.c b/Zend/zend_ast.c
index c97e1c4..b55d0e8 100644
--- a/Zend/zend_ast.c
+++ b/Zend/zend_ast.c
@@ -155,7 +155,14 @@ ZEND_API zend_ast *zend_ast_create_list(uint32_t init_children, zend_ast_kind ki
 		uint32_t i;
 		va_start(va, kind);
 		for (i = 0; i < init_children; ++i) {
-			ast = zend_ast_list_add(ast, va_arg(va, zend_ast *));
+			zend_ast *child = va_arg(va, zend_ast *);
+			ast = zend_ast_list_add(ast, child);
+			if (child != NULL) {
+				uint32_t lineno = zend_ast_get_lineno(child);
+				if (lineno < ast->lineno) {
+					ast->lineno = lineno;
+				}
+			}
 		}
 		va_end(va);
 	}