Add a comment to count_objects to prevent future regression

mame · mame · commit 830ab2c5b5ea · 2025-07-16T20:14:20.000+09:00
diff --git a/gc.c b/gc.c
@@ -2507,6 +2507,9 @@ count_objects(int argc, VALUE *argv, VALUE os)
     }
 
     for (size_t i = 0; i <= T_MASK; i++) {
+        // type_sym can allocate an object,
+        // so we need to create all key symbols in advance
+        // not to disturb the result
         types[i] = type_sym(i);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -2507,6 +2507,9 @@ count_objects(int argc, VALUE *argv, VALUE os)`
`2507`	`2507`	`}`
`2508`	`2508`
`2509`	`2509`	`for (size_t i = 0; i <= T_MASK; i++) {`
	`2510`	`+ // type_sym can allocate an object,`
	`2511`	`+ // so we need to create all key symbols in advance`
	`2512`	`+ // not to disturb the result`
`2510`	`2513`	`types[i] = type_sym(i);`
`2511`	`2514`	`}`
`2512`	`2515`