pry--pry/lib/pry/commands/show_source.rb

54 lines
1.6 KiB
Ruby

require 'pry/commands/show_info'
class Pry
class Command::ShowSource < Command::ShowInfo
match 'show-source'
group 'Introspection'
description 'Show the source for a method or class.'
banner <<-'BANNER'
Usage: show-source [OPTIONS] [METH|CLASS]
Aliases: $, show-method
Show the source for a method or class. Tries instance methods first and then
methods by default.
show-source hi_method
show-source hi_method
show-source Pry#rep # source for Pry#rep method
show-source Pry # for Pry class
show-source Pry -a # for all Pry class definitions (all monkey patches)
show-source Pry.foo -e # for class of the return value of expression `Pry.foo`
show-source Pry --super # for superclass of Pry (Object class)
https://github.com/pry/pry/wiki/Source-browsing#wiki-Show_method
BANNER
def options(opt)
opt.on :e, :eval, "evaluate the command's argument as a ruby expression and show the class its return value"
super(opt)
end
def process
if opts.present?(:e)
obj = target.eval(args.first)
self.args = Array.new(1) { Module === obj ? obj.name : obj.class.name }
end
super
end
# The source for code_object prepared for display.
def content_for(code_object)
code = Code.new(
code_object.source || [],
start_line_for(code_object)
)
code.with_line_numbers(use_line_numbers?).highlighted
end
end
Pry::Commands.add_command(Pry::Command::ShowSource)
Pry::Commands.alias_command 'show-method', 'show-source'
Pry::Commands.alias_command '$', 'show-source'
end