Method: RubyToAnsiC#process_call

Defined in:
lib/ruby_to_ansi_c.rb

#process_call(exp) ⇒ Object

Call, both unary and binary operators and regular function calls.

TODO: This needs a lot of work. We’ve cheated with the case statement below. We need a real function signature lookup like we have in R2CRewriter.



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# File 'lib/ruby_to_ansi_c.rb', line 252

def process_call(exp)
  receiver = exp.shift
  name = exp.shift

  receiver_type = Type.unknown
  unless receiver.nil? then
    receiver_type = receiver.sexp_type
  end
  receiver = process receiver

  case name
    # TODO: these need to be numerics
    # emacs gets confused by :/ below, need quotes to fix indentation
  when :==, :<, :>, :<=, :>=, :-, :+, :*, :"/", :% then
    args = process exp.shift[1]
    return "#{receiver} #{name} #{args}"
  when :<=>
    args = process exp.shift[1]
    return "RB_COMPARE(#{receiver}, #{args})"
  when :equal?
    args = process exp.shift
    return "#{receiver} == #{args}" # equal? == address equality
  when :[]
    args = process exp.shift
    return "#{receiver}[#{args}]"
  when :nil?
    exp.clear
    return receiver.to_s
  else
    args = process exp.shift

    if receiver.nil? and args.nil? then
      args = ""
    elsif receiver.nil? then
      # nothing to do 
    elsif args.nil? then
      args = receiver
    else
      args = "#{receiver}, #{args}"
    end

    return "#{name}(#{args})"
  end
end