Module: Klam::CompilationStages::MakeAbstractionsMonadic

Included in:
Klam::Compiler
Defined in:
lib/klam/compilation_stages/make_abstractions_monadic.rb

Overview

Make Abstractions Monadic

By the time the Ruby code is emitted, we want abstractions to take no more than one parameter. This simplifies code generation and avoids the need for using Proc#curry, which is slow.

This stage converts (lambda [X Y] form) to (lambda [X] (lambda [Y] form))

Instance Method Summary collapse

Instance Method Details

#make_abstractions_monadic(sexp) ⇒ Object 



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# File 'lib/klam/compilation_stages/make_abstractions_monadic.rb', line 11

def make_abstractions_monadic(sexp)
  if sexp.instance_of?(Array)
    if sexp[0] == :lambda && sexp[1].length > 1
      params = sexp[1]
      [:lambda, [params[0]],
        make_abstractions_monadic([:lambda, params[1..-1], sexp[2]])]
    else
      sexp.map { |form| make_abstractions_monadic(form) }
    end
  else
    sexp
  end
end