Module: Sourcify::Proc::Methods::ToSexp

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

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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

def self.included(base)
  base.class_eval do

    ref_proc = lambda {}

    # Case 1: we already have Proc#to_sexp (eg. provided by ParseTree) available,
    # we override it to ensure it handles the extra args ..
    if ref_proc.respond_to?(:to_sexp)

      alias_method :__pre_sourcified_to_sexp, :to_sexp

      def to_sexp(opts = {}, &body_matcher)
        sexp, flag = __pre_sourcified_to_sexp, opts[:strip_enclosure]
        Marshal.load(Marshal.dump( # need a deep copy cos the caller may reset the sexp
          (@sourcified_sexps ||= {})[flag] ||=
            flag ? Sexp.from_array(sexp.to_a.last) : sexp
        ))
      end

    # Case 2: okko, we have to implement our own Proc#to_sexp ...
    else

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

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

    end
  end
end