Trigger const_missing mechanism for Rails

In order to allow Rails' dynamic class loading to work, the
const_missing callback must be called.

1 files changed, 3 insertions, 2 deletions

diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index 96530fb..ceb7919 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -26,7 +26,7 @@ static VALUE CNaN, CInfinity, CMinusInfinity;
 
 static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions,
           i_chr, i_max_nesting, i_allow_nan, i_symbolize_names, i_object_class,
-          i_array_class, i_key_p;
+          i_array_class, i_key_p, i_deep_const_get;
 
 #define MinusInfinity "-Infinity"
 
@@ -415,7 +415,7 @@ case 26:
         if (RTEST(json->create_id)) {
             VALUE klassname = rb_hash_aref(*result, json->create_id);
             if (!NIL_P(klassname)) {
-                VALUE klass = rb_path2class(StringValueCStr(klassname));
+                VALUE klass = rb_funcall(mJSON, i_deep_const_get, 1, klassname);
                 if RTEST(rb_funcall(klass, i_json_creatable_p, 0)) {
                     *result = rb_funcall(klass, i_json_create, 1, *result);
                 }
@@ -1875,6 +1875,7 @@ void Init_parser()
     i_object_class = rb_intern("object_class");
     i_array_class = rb_intern("array_class");
     i_key_p = rb_intern("key?");
+    i_deep_const_get = rb_intern("deep_const_get");
 #ifdef HAVE_RUBY_ENCODING_H
     mEncoding_UTF_8 = rb_funcall(rb_path2class("Encoding"), rb_intern("find"), 1, rb_str_new2("utf-8"));
     mEncoding_UTF_16BE = rb_funcall(rb_path2class("Encoding"), rb_intern("find"), 1, rb_str_new2("utf-16be"));