parser.rl: allocate structs with wrapper

* ext/json/ext/parser/parser.rl (cJSON_parser_s_allocate): allocate
  structs with making new wrapper objects and get rid of potential
  memory leak.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50660 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 10 deletions

diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index eed58e5..9c9d76a 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -2091,14 +2091,6 @@ static VALUE cParser_parse(VALUE self)
   }
 }
 
-
-static JSON_Parser *JSON_allocate(void)
-{
-    JSON_Parser *json = ZALLOC(JSON_Parser);
-    json->fbuffer = fbuffer_alloc(0);
-    return json;
-}
-
 static void JSON_mark(void *ptr)
 {
     JSON_Parser *json = ptr;
@@ -2135,8 +2127,10 @@ static const rb_data_type_t JSON_Parser_type = {
 
 static VALUE cJSON_parser_s_allocate(VALUE klass)
 {
-    JSON_Parser *json = JSON_allocate();
-    return TypedData_Wrap_Struct(klass, &JSON_Parser_type, json);
+    JSON_Parser *json;
+    VALUE obj = TypedData_Make_Struct(klass, JSON_Parser, &JSON_Parser_type, json);
+    json->fbuffer = fbuffer_alloc(0);
+    return obj;
 }
 
 /*