Bind grn_obj_type_to_string()

GitHub: #116

ext/groonga/rb-grn-object.c

@@ -1718,6 +1718,34 @@ rb_grn_object_key_accessor_p (VALUE self)
  return CBOOL2RVAL(key_accessor_p);
 }
 
+/**
+ * Returns the object type string.
+ *
+ * @example Groonga::Database
+ * Groonga::Database.create(:path => "/path/to/db") do |database|
+ * p database.type_string # => "db"
+ * end
+ *
+ * @example Groonga::Hash
+ * users = Groonga::Hash.create(:name => "Users")
+ * p users.type_string # => "table:hash_key"
+ *
+ * @overload type_string
+ * @return [String] The object type string.
+ *
+ * @since 6.0.0
+ */
+static VALUE
+rb_grn_object_type_to_string (VALUE self)
+{
+ grn_obj *object;
+
+ rb_grn_object_deconstruct(SELF(self), &object, NULL,
+ NULL, NULL, NULL, NULL);
+
+ return rb_str_new_cstr(grn_obj_type_to_string(object->header.type));
+}
+
 void
 rb_grn_init_object (VALUE mGrn)
 {
@@ -1767,4 +1795,7 @@ rb_grn_init_object (VALUE mGrn)
  rb_grn_object_accessor_p, 0);
  rb_define_method(rb_cGrnObject, "key_accessor?",
  rb_grn_object_key_accessor_p, 0);
+
+ rb_define_method(rb_cGrnObject, "type_string",
+ rb_grn_object_type_to_string, 0);
 }

test/test-database.rb

@@ -276,6 +276,12 @@ def test_reindex
  terms.collect(&:_key).sort)
  end
 
+ def test_type_string
+ Groonga::Database.create(:path => @database_path.to_s) do |database|
+ assert_equal("db", database.type_string)
+ end
+ end
+
  class RemoveTest < self
  setup :setup_database
 

test/test-hash.rb

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2014 Masafumi Yokoyama <myokoym@gmail.com>
 # Copyright (C) 2009-2014 Kouhei Sutou <kou@clear-code.com>
+# Copyright (C) 2014-2016 Masafumi Yokoyama <yokoyama@clear-code.com>
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -443,4 +443,9 @@ def test_each_without_block
  user_names = users.each.collect(&:key)
  assert_equal(["Alice", "Bob", "Carl"], user_names)
  end
+
+ def test_type_string
+ users = Groonga::Hash.create(:name => "Users")
+ assert_equal("table:hash_key", users.type_string)
+ end
 end