From cddc4e86774bc153a563d924bd15b547b7bf9d27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ladislav=20Slez=C3=A1k?= <lslezak@suse.cz>
Date: Thu, 24 Jan 2013 19:00:37 +0100
Subject: [PATCH] added tointeger() YCP builtin

---
 src/ruby/ycp/builtins.rb    | 12 ++++++++++--
 tests/ruby/builtins_test.rb |  6 ++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/ruby/ycp/builtins.rb b/src/ruby/ycp/builtins.rb
index e06f6870..ba90e772 100644
--- a/src/ruby/ycp/builtins.rb
+++ b/src/ruby/ycp/builtins.rb
@@ -183,8 +183,16 @@ def self.tofloat
     ###########################################################
 
     # Converts a value to an integer.
-    def self.tointeger
-      raise "Builtin tointeger() is not implemented yet"
+    def self.tointeger object
+      return nil if object.nil?
+
+      case object
+      # use full qualified ::Float to avoid clash with YCP::Builtins::Float
+      when String, ::Float, Fixnum, Bignum
+        object.to_i
+      else
+        nil
+      end
     end
 
     ###########################################################
diff --git a/tests/ruby/builtins_test.rb b/tests/ruby/builtins_test.rb
index 1e9d2899..f7989782 100644
--- a/tests/ruby/builtins_test.rb
+++ b/tests/ruby/builtins_test.rb
@@ -259,4 +259,10 @@ def test_srandom
     assert_equal nil, YCP::Builtins.srandom(10)
   end
 
+  def test_tointeger()
+    assert_equal nil, YCP::Builtins.tointeger(nil)
+    assert_equal 120, YCP::Builtins.tointeger(120)
+    assert_equal 120, YCP::Builtins.tointeger("120")
+    assert_equal 120, YCP::Builtins.tointeger(120.0)
+  end
 end