From c060bdc2b4ab8eeef5374f4174f5de48ab936d74 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 14 Jan 2021 15:42:45 +0900
Subject: NODE markability should not change by nd_set_type

---
 node.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'node.h')

diff --git a/node.h b/node.h
index d9dfaa5c2d..192e121fd7 100644
--- a/node.h
+++ b/node.h
@@ -187,6 +187,8 @@ typedef struct RNode {
 
 #define nd_type(n) ((int) (((n)->flags & NODE_TYPEMASK)>>NODE_TYPESHIFT))
 #define nd_set_type(n,t) \
+    rb_node_set_type(n, t)
+#define nd_init_type(n,t) \
     (n)->flags=(((n)->flags&~NODE_TYPEMASK)|((((unsigned long)(t))<<NODE_TYPESHIFT)&NODE_TYPEMASK))
 
 #define NODE_LSHIFT (NODE_TYPESHIFT+7)
@@ -471,9 +473,19 @@ void *rb_parser_realloc(struct parser_params *, void *, size_t);
 void *rb_parser_calloc(struct parser_params *, size_t, size_t);
 void rb_parser_free(struct parser_params *, void *);
 PRINTF_ARGS(void rb_parser_printf(struct parser_params *parser, const char *fmt, ...), 2, 3);
+void rb_ast_node_type_change(NODE *n, enum node_type type);
 
 RUBY_SYMBOL_EXPORT_END
 
+static inline VALUE
+rb_node_set_type(NODE *n, enum node_type t)
+{
+#if RUBY_DEBUG
+    rb_ast_node_type_change(n, t);
+#endif
+    return nd_init_type(n, t);
+}
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
-- 
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