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action_dispatch	[ DIR ]	drwxr-xr-x
active_support	[ DIR ]	drwxr-xr-x
bootsnap	[ DIR ]	drwxr-xr-x
childprocess	[ DIR ]	drwxr-xr-x
coffee_script	[ DIR ]	drwxr-xr-x
columnize	[ DIR ]	drwxr-xr-x
domain_name	[ DIR ]	drwxr-xr-x
em	[ DIR ]	drwxr-xr-x
erubis	[ DIR ]	drwxr-xr-x
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hike	[ DIR ]	drwxr-xr-x
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jbuilder	[ DIR ]	drwxr-xr-x
json	[ DIR ]	drwxr-xr-x
mail	[ DIR ]	drwxr-xr-x
method_source	[ DIR ]	drwxr-xr-x
moneta	[ DIR ]	drwxr-xr-x
multi_json	[ DIR ]	drwxr-xr-x
mysql2	[ DIR ]	drwxr-xr-x
net	[ DIR ]	drwxr-xr-x
openid	[ DIR ]	drwxr-xr-x
phusion_passenger	[ DIR ]	drwxr-xr-x
pkg-config	[ DIR ]	drwxr-xr-x
racc	[ DIR ]	drwxr-xr-x
rack	[ DIR ]	drwxr-xr-x
rails	[ DIR ]	drwxr-xr-x
rake	[ DIR ]	drwxr-xr-x
rb-inotify	[ DIR ]	drwxr-xr-x
rmagick	[ DIR ]	drwxr-xr-x
rubygems	[ DIR ]	drwxr-xr-x
rvg	[ DIR ]	drwxr-xr-x
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sqlite3	[ DIR ]	drwxr-xr-x
tilt	[ DIR ]	drwxr-xr-x
uglifier	[ DIR ]	drwxr-xr-x
unf	[ DIR ]	drwxr-xr-x
unf_ext	[ DIR ]	drwxr-xr-x
uuidtools	[ DIR ]	drwxr-xr-x
webrobots	[ DIR ]	drwxr-xr-x
websocket	[ DIR ]	drwxr-xr-x
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xpath	[ DIR ]	drwxr-xr-x
RMagick.rb	100 B	-rw-r--r--
bootsnap.rb	3.94 KB	-rw-r--r--
childprocess.rb	4.84 KB	-rw-r--r--
coffee-script.rb	24 B	-rw-r--r--
coffee_script.rb	1.85 KB	-rw-r--r--
columnize.rb	4.59 KB	-rw-r--r--
domain_name.rb	7.33 KB	-rw-r--r--
erubis.rb	1.71 KB	-rw-r--r--
eventmachine.rb	60.52 KB	-rw-r--r--
execjs.rb	108 B	-rw-r--r--
hike.rb	263 B	-rw-r--r--
hmac-md5.rb	204 B	-rw-r--r--
hmac-rmd160.rb	213 B	-rw-r--r--
hmac-sha1.rb	207 B	-rw-r--r--
hmac-sha2.rb	529 B	-rw-r--r--
hmac.rb	2.86 KB	-rw-r--r--
http-cookie.rb	22 B	-rw-r--r--
jbuilder.rb	8.47 KB	-rw-r--r--
jeventmachine.rb	8.34 KB	-rw-r--r--
json.rb	19.3 KB	-rw-r--r--
mail.rb	1.87 KB	-rw-r--r--
method_source.rb	4.31 KB	-rw-r--r--
moneta.rb	6.92 KB	-rw-r--r--
multi_json.rb	4.15 KB	-rw-r--r--
mysql2.rb	2.84 KB	-rw-r--r--
net-telnet.rb	21 B	-rw-r--r--
net_http_hacked.rb	2.41 KB	-rw-r--r--
openid.rb	675 B	-rw-r--r--
phusion_passenger.rb	11.69 KB	-rw-r--r--
pkg-config.rb	16.38 KB	-rw-r--r--
racc.rb	137 B	-rw-r--r--
rack-proxy.rb	20 B	-rw-r--r--
rails-deprecated_sanitizer.rb	37 B	-rw-r--r--
rb-inotify.rb	461 B	-rw-r--r--
rmagick.rb	65 B	-rw-r--r--
rmagick_internal.rb	57.88 KB	-rw-r--r--
ruby-openid.rb	17 B	-rw-r--r--
ruby_hmac.rb	52 B	-rw-r--r--
rubygems.rb	36.48 KB	-rw-r--r--
sass-rails.rb	22 B	-rw-r--r--
selenium-webdriver.rb	848 B	-rw-r--r--
sprockets.rb	6.5 KB	-rw-r--r--
sqlite3.rb	361 B	-rw-r--r--
systemu.rb	8.47 KB	-rw-r--r--
tilt.rb	6.11 KB	-rw-r--r--
uglifier.rb	10.89 KB	-rw-r--r--
unf.rb	659 B	-rw-r--r--
unf_ext.rb	109 B	-rw-r--r--
uuidtools.rb	24.2 KB	-rw-r--r--
webrobots.rb	5.62 KB	-rw-r--r--
xmlrpc.rb	7.99 KB	-rw-r--r--
xpath.rb	271 B	-rw-r--r--

Code Editor : method_source.rb

# (C) John Mair (banisterfiend) 2011
# MIT License

direc = File.dirname(__FILE__)

require "#{direc}/method_source/version"
require "#{direc}/method_source/source_location"
require "#{direc}/method_source/code_helpers"

module MethodSource
  extend MethodSource::CodeHelpers

# An Exception to mark errors that were raised trying to find the source from
  # a given source_location.
  #
  class SourceNotFoundError < StandardError; end

# Helper method responsible for extracting method body.
  # Defined here to avoid polluting `Method` class.
  # @param [Array] source_location The array returned by Method#source_location
  # @param [String]  method_name
  # @return [String] The method body
  def self.source_helper(source_location, name=nil)
    raise SourceNotFoundError, "Could not locate source for #{name}!" unless source_location
    file, line = *source_location

expression_at(lines_for(file), line)
  rescue SyntaxError => e
    raise SourceNotFoundError, "Could not parse source for #{name}: #{e.message}"
  end

# Helper method responsible for opening source file and buffering up
  # the comments for a specified method. Defined here to avoid polluting
  # `Method` class.
  # @param [Array] source_location The array returned by Method#source_location
  # @param [String]  method_name
  # @return [String] The comments up to the point of the method.
  def self.comment_helper(source_location, name=nil)
    raise SourceNotFoundError, "Could not locate source for #{name}!" unless source_location
    file, line = *source_location

comment_describing(lines_for(file), line)
  end

# Load a memoized copy of the lines in a file.
  #
  # @param [String]  file_name
  # @param [String]  method_name
  # @return [Array<String>]  the contents of the file
  # @raise [SourceNotFoundError]
  def self.lines_for(file_name, name=nil)
    @lines_for_file ||= {}
    @lines_for_file[file_name] ||= File.readlines(file_name)
  rescue Errno::ENOENT => e
    raise SourceNotFoundError, "Could not load source for #{name}: #{e.message}"
  end

# @deprecated — use MethodSource::CodeHelpers#complete_expression?
  def self.valid_expression?(str)
    complete_expression?(str)
  rescue SyntaxError
    false
  end

# @deprecated — use MethodSource::CodeHelpers#expression_at
  def self.extract_code(source_location)
    source_helper(source_location)
  end

# This module is to be included by `Method` and `UnboundMethod` and
  # provides the `#source` functionality
  module MethodExtensions

# We use the included hook to patch Method#source on rubinius.
    # We need to use the included hook as Rubinius defines a `source`
    # on Method so including a module will have no effect (as it's
    # higher up the MRO).
    # @param [Class] klass The class that includes the module.
    def self.included(klass)
      if klass.method_defined?(:source) && Object.const_defined?(:RUBY_ENGINE) &&
          RUBY_ENGINE =~ /rbx/

klass.class_eval do
          orig_source = instance_method(:source)

define_method(:source) do
            begin
              super
            rescue
              orig_source.bind(self).call
            end
          end

end
      end
    end

# Return the sourcecode for the method as a string
    # @return [String] The method sourcecode as a string
    # @raise SourceNotFoundException
    #
    # @example
    #  Set.instance_method(:clear).source.display
    #  =>
    #     def clear
    #       @hash.clear
    #       self
    #     end
    def source
      MethodSource.source_helper(source_location, defined?(name) ? name : inspect)
    end

# Return the comments associated with the method as a string.
    # @return [String] The method's comments as a string
    # @raise SourceNotFoundException
    #
    # @example
    #  Set.instance_method(:clear).comment.display
    #  =>
    #     # Removes all elements and returns self.
    def comment
      MethodSource.comment_helper(source_location, defined?(name) ? name : inspect)
    end
  end
end

class Method
  include MethodSource::SourceLocation::MethodExtensions
  include MethodSource::MethodExtensions
end

class UnboundMethod
  include MethodSource::SourceLocation::UnboundMethodExtensions
  include MethodSource::MethodExtensions
end

class Proc
  include MethodSource::SourceLocation::ProcExtensions
  include MethodSource::MethodExtensions
end

${this.title}

Code Editor : method_source.rb