RubyEditorDemo
Ruby Editor Demo (5 Minutes)
Description
This demos shows some of the features of the NetBeans Ruby Editor. For a more complete list, see the Editing Ruby Code article.
Product Versions Supported
NetBeans 6.0
Points to Hit
- Code completion and integrated RDoc
- Pair matching
Demo Prep
Create a Ruby project and put the following code into main.rb:
# A representation of the little pigs
class ThreePigs
# This little piggy went to the market
def pig_one(arg1)
puts "Pig One: #{arg1}"
end
# This little piggy stayed home
def pig_two(arg1, arg2)
puts "Pig Two: #{arg2}"
end
# This little piggy had roast beast
def pig_n(*args)
puts "Pig N: #{args.inspect}"
end
end
Gotchas
- None known
Ruby Editor Demo
Code Completion and Integrated RDoc
- Move to the bottom of main.rb and type the following:
tp = Three<Ctrl+K>
to insert the previous matching word "LittlePigs". You now have lp = LittlePigs. Complete the line by adding .new, lp = LittlePigs.new (there's also code-completion for .new if you want to show it).- Show how the class's 3 local methods appear above the line, presuming to be your most logical choice. Also see the integraded RDoc.
tp.<Ctrl+Space>
Select the method with 2 arguments. - Enter arguments for the completed method using argument completion (entering a value and then pressing enter)
Mark Occurances, Go To Declaration, Instant Rename and Semantic Highlighting
- Place your cursor on the call to method_two. Notice how method_two above is marked.
- Ctrl+Click to go to that method's declaration
- Highlight the arg1 and notice the only other occurrence of arg1 are NOT highlighted.
- Select arg2 and Ctrl+R to instantly rename arg2 to something else.
- Point out that the gray wavy underline below the arg1 indicates the variable is unused.
