Module: Sourcify::Proc::Methods::ToSource

Defined in:
lib/sourcify/lib/sourcify/proc/methods/to_source.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/sourcify/lib/sourcify/proc/methods/to_source.rb', line 5

def self.included(base)
  base.class_eval do

    ref_proc = lambda {}

    # Case 1: the current ruby already implements Proc#to_source,
    # we override it to ensure it handles the extra args ..
    if ref_proc.respond_to?(:to_source)

      alias_method :__pre_sourcified_to_source, :to_source

      def to_source(opts = {}, &body_matcher)
        flag = opts[:strip_enclosure]
        (@sourcified_sources ||= {})[flag] ||=
          flag ? Ruby2Ruby.new.process(to_sexp(opts, &body_matcher)) : __pre_sourcified_to_source
      end

    # Case 2: we have Proc#to_ruby (eg. provided by ParseTree) available,
    # we have a wrapper round it to ensure it handles the extra args ..
    elsif ref_proc.respond_to?(:to_ruby)

      def to_source(opts = {}, &body_matcher)
        flag = opts[:strip_enclosure]
        (@sourcified_sources ||= {})[flag] ||=
          flag ? Ruby2Ruby.new.process(to_sexp(opts, &body_matcher)) : to_ruby
      end

    # Case 3: okko, we have to implement our own Proc#to_source ...
    else

      Sourcify.require_rb('proc', 'parser')

      def to_source(opts = {}, &body_matcher)
        (@sourcified_parser ||= Parser.new(self)).
          source(opts.merge(:body_matcher => body_matcher))
      end

    end
  end
end