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-rw-r--r--ext/-test-/method/arity.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/ext/-test-/method/arity.c b/ext/-test-/method/arity.c
new file mode 100644
index 0000000000..239b9f7f10
--- /dev/null
+++ b/ext/-test-/method/arity.c
@@ -0,0 +1,22 @@
+#include "ruby.h"
+
+static VALUE
+obj_method_arity(VALUE self, VALUE obj, VALUE mid)
+{
+ int arity = rb_obj_method_arity(obj, rb_check_id(&mid));
+ return INT2FIX(arity);
+}
+
+static VALUE
+mod_method_arity(VALUE self, VALUE mod, VALUE mid)
+{
+ int arity = rb_mod_method_arity(mod, rb_check_id(&mid));
+ return INT2FIX(arity);
+}
+
+void
+Init_arity(VALUE mod)
+{
+ rb_define_module_function(mod, "obj_method_arity", obj_method_arity, 2);
+ rb_define_module_function(mod, "mod_method_arity", mod_method_arity, 2);
+}