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-rw-r--r--ext/json/generator/generator.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/json/generator/generator.c b/ext/json/generator/generator.c
index c72ab61b76..4e44178e02 100644
--- a/ext/json/generator/generator.c
+++ b/ext/json/generator/generator.c
@@ -556,6 +556,7 @@ static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self)
/*
* call-seq: to_json(*)
*
+ * Returns a JSON string for nil: 'null'.
*/
static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self)
{
@@ -1347,6 +1348,7 @@ void Init_generator()
rb_define_method(cState, "depth", cState_depth, 0);
rb_define_method(cState, "depth=", cState_depth_set, 1);
rb_define_method(cState, "configure", cState_configure, 1);
+ rb_define_alias(cState, "merge", "configure");
rb_define_method(cState, "to_h", cState_to_h, 0);
rb_define_method(cState, "[]", cState_aref, 1);
rb_define_method(cState, "generate", cState_generate, 1);