Shelike::Pipe

gem 'shelike-pipe'

require 'shelike/pipe'

using Shelike::Pipe

# Can let an object of the left side of a go board apply to the symbol of the right side.
('foo' | :upcase).call # => 'FOO'

# Can apply it for the Method and Proc
require 'json'

('{ "a": 1 }' | JSON.method(:parse)).call           # => { "a" => 1 }
('{ "a": 1 }' | ->(json) { JSON.parse(json) }).call # => { "a" => 1 }

# When an argument is necessary, define it with sequence. 
(%w(a b c) | :size | [:*, 3]).call # => 9

# Carry out the function that was connected to there by using `^` and catchable an exception.
'{ a: 1 }' | JSON.method(:parse) ^ ->(e) { exception! } 

# When an exception occurs, the `^` returns `nil`, and the case except it returns the practice result of the function to there.
'{ a: 1 }'   | JSON.method(:parse) ^ ->(e) { exception! } # => nil
'{ "a": 1 }' | JSON.method(:parse) ^ ->(e) { exception! } # => { "a" => 1 }

# When they use `|` and `^` for `nil`, results always become `nil`.
(nil | to_i).call # => nil
-> { nil } ^ :upcase # => nil