Namespaces a la C#

ruby-talk
1

Hei everybody,

     I'm kind of new to ruby and, since i come from C#, one of the main
things i'm missing is the .NET "project" way of organizing the codebase.
As you probably know: in .NET you can arrange your code into a project,
then reference that project to have access to everything public inside
it. Example:

<in DotNetProject>
<file Temp.cs>

namespace Temp
{
      public class TestClass { }
}

<file TempTwo.cs>
namespace Temp
{
      public class TestTwoClass { }
}

then, in another project, you get access to TestClass and TestTwoClass
referencing the DotNetProject and you can simplify the syntax too by
adding 'using' directives on your files like:

using Temp;

public class NewClass
{
    public void DoSomething()
    {
        TestClass ts = new TestClass();
        TestTwoClass ts2 = new TestTwoClass();
        //the following is still legal and
        //it's the syntax you'll have to use
        //if you choose not to add the 'using' line
        //at the top
        Temp.TestClass ts3 = new Temp.TestClass();
        Temp.TestTwoClass ts4 = new Temp.TestTwoClass();
    }
}

So: is there a way to do something similar in Ruby? Like using a Module,
but splitted on separate files, such as :

<in file1.rb>
Module test
    Class testclass
    end
end

<in file2.rb>
Module test
    Class testtwoclass
    end
end

and then

<in file bootstrapper.rb>
require 'test'
...
ts = test::testclass.new
ts2 = test::testtwoclass.new
...

Sorry if this is a lame question but the
add-every-freaking-file-every-freaking-time way isn't just going to work
on a large project and i don't really like having to code every class
belonging to a namespace in the same file like this :

Module test
    Class one
    end

    Class two
    end
    ...
    Class n
    end
end

Thanks in advance!

···

--
Posted via http://www.ruby-forum.com/.

2

Cippo Lippo schrieb:

So: is there a way to do something similar in Ruby? Like using a Module,
but splitted on separate files, such as :

<in file1.rb>
Module test
    Class testclass
    end
end

<in file2.rb>
Module test
    Class testtwoclass
    end
end

and then

<in file bootstrapper.rb>
require 'test'
...
ts = test::testclass.new
ts2 = test::testtwoclass.new
...

this should work perfectly (if you make the Modulename uppercase).
If you don't want to type the "Test::" thingy use "include Test" in bootstrapper.rb
And if you wan't to just require 'test', the best way is something like this:
<in test.rb>
Dir["test/*.rb"].each { |file| require file }

3

The short answer is: just try it :slight_smile:
The long answer is: Ruby lets you reopen just about everything, so you
can do this without problems:

module Foo
  class Bar
  end
end

module Foo
  class Duh
  end
end

It doesn't matter in which files the code is, as long as you require both.
The way libraries do it is usually something like this:
http://paste.linuxhelp.tv/pastes/view/15344

Now you can reference Zoo::Animal and Zoo::Panther as long as you
require the /lib/zoo.rb

···

On Sun, Jan 11, 2009 at 7:33 PM, Cippo Lippo <bolthar@libero.it> wrote:

Hei everybody,

    I'm kind of new to ruby and, since i come from C#, one of the main
things i'm missing is the .NET "project" way of organizing the codebase.
As you probably know: in .NET you can arrange your code into a project,
then reference that project to have access to everything public inside
it. Example:

<in DotNetProject>
<file Temp.cs>

namespace Temp
{
     public class TestClass { }
}

<file TempTwo.cs>
namespace Temp
{
     public class TestTwoClass { }
}

then, in another project, you get access to TestClass and TestTwoClass
referencing the DotNetProject and you can simplify the syntax too by
adding 'using' directives on your files like:

using Temp;

public class NewClass
{
   public void DoSomething()
   {
       TestClass ts = new TestClass();
       TestTwoClass ts2 = new TestTwoClass();
       //the following is still legal and
       //it's the syntax you'll have to use
       //if you choose not to add the 'using' line
       //at the top
       Temp.TestClass ts3 = new Temp.TestClass();
       Temp.TestTwoClass ts4 = new Temp.TestTwoClass();
   }
}

So: is there a way to do something similar in Ruby? Like using a Module,
but splitted on separate files, such as :

<in file1.rb>
Module test
   Class testclass
   end
end

<in file2.rb>
Module test
   Class testtwoclass
   end
end

and then

<in file bootstrapper.rb>
require 'test'
...
ts = test::testclass.new
ts2 = test::testtwoclass.new
...

Sorry if this is a lame question but the
add-every-freaking-file-every-freaking-time way isn't just going to work
on a large project and i don't really like having to code every class
belonging to a namespace in the same file like this :

Module test
   Class one
   end

   Class two
   end
   ...
   Class n
   end
end

Thanks in advance!