Needing forward declaration in Ruby

Posted by dbarbosa on Stack Overflow See other posts from Stack Overflow or by dbarbosa
Published on 2010-05-08T15:34:43Z Indexed on 2010/05/08 15:38 UTC
Read the original article Hit count: 346

Filed under:
|
|

Hi,

I am trying to write a Ruby script in one file.

I would like to know if it is possible to write the "main" function in the beginning, having the other functions that are used by main, defined after it. In other words, I would like to call a not yet defined function, so that they do not depends on definition order. Just changing the order is not possible because it gives an "undefined method" error. In C/C++ we use forward declarations... is there something similar in Ruby or another solution to this?

© Stack Overflow or respective owner

Related posts about ruby

Related posts about undefined

  • Error in running script [closed]

    as seen on Programmers - Search for 'Programmers'
    I'm trying to run heathusf_v1.1.0.tar.gz found here I installed tcsh to make build_heathusf work. But, when I run ./build_heathusf, I get the following (I'm running that on a Fedora Linux system from Terminal): $ ./build_heathusf Compiling programs to build a library of image processing functions… >>> More

  • Not able to compile dbus-ping-pong

    as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
    I have downloaded files from http://cgit.collabora.com/git/user/alban/dbus-ping-pong.git/tree/ I am trying to compile it using the command gcc pkg-config --libs --cflags dbus-1 dbus-glib-1-2 glib-2.0 -o dbus-ping-pong dbus-ping-pong.c However, I get errors: /tmp/ccmJkxXb.o: In function g_once_init_enter: dbus-ping-pong… >>> More

  • Qt Linking Error.

    as seen on Stack Overflow - Search for 'Stack Overflow'
    Hi, I configure qt-x11 with following options ./configure -prefix /iTalk/qtx11 -prefix-install -bindir /iTalk/qtx11-install/bin -libdir /iTalk/qtx11-install/lib -docdir /iTalk/qtx11-install/doc -headerdir /iTalk/qtx11-install/include -datadir /iTalk/qtx11-install/data -examplesdir /iTalk/qtx11-install/examples… >>> More

  • QtOpenCl make errors. Please help.

    as seen on Stack Overflow - Search for 'Stack Overflow'
    So I downloaded the ATI Stream SDK. I don't have a gpu now so I use the '-device cpu' and got the programs/examples in the OpenCl directory working by adding the directory to LD_LIBRARY_PATH etc. Now the problem is when installing QtOpenCl. configure script gives me: skkard@skkard-desktop:~/Applications/qt-labs-opencl$… >>> More

  • Handling Erlang inets http client errors

    as seen on Stack Overflow - Search for 'Stack Overflow'
    I have an Erlang app which makes a large number of http calls to external sites using inets, using the code below case http:request(get, {Url, []}, [{autoredirect, false}], []) of {ok, {{_, Code, _}, _, Body}}-> case Code of 200 -> HandlerFn(Body); _ -> {error… >>> More