Module: HDLRuby::High::Hinner

Included in:

Block, Scope

Defined in:

lib/HDLRuby/hruby_high.rb

Overview

Module providing declaration of inner signal (assumes inner signals are present.

Class Method Summary

• .included(klass) ⇒ Object

  Only adds the methods if not present.

Class Method Details

.included(klass) ⇒ Object

Only adds the methods if not present.

# File 'lib/HDLRuby/hruby_high.rb', line 257

def self.included(klass)
    klass.class_eval do
        unless instance_methods.include?(:make_inners) then
            # Creates and adds a set of inners typed +type+ from a
            # list of +names+.
            #
            # NOTE: * a name can also be a signal, is which case it is
            #         duplicated. 
            #       * a name can also be a hash containing names
            #         associated with an initial value.
            def make_inners(type, *names)
                res = nil
                names.each do |name|
                    if name.respond_to?(:to_sym) then
                        # Adds the inner signal
                        res = self.add_inner(
                            SignalI.new(name,type,:inner))
                    elsif name.is_a?(Hash) then
                        # Names associated with values.
                        name.each do |key,value|
                            res = self.add_inner(
                                SignalI.new(key,type,:inner,value))
                        end
                    else
                        raise AnyError,
                              "Invalid class for a name: #{name.class}"
                    end
                end
                return res
            end
        end

        unless instance_methods.include?(:make_constants) then
            # Creates and adds a set of contants typed +type+ from a 
            # hsh given names and corresponding values.
            def make_constants(type, hsh)
                res = nil
                hsh.each do |name,value|
                    # Adds the Constant signal
                    res = self.add_inner(SignalC.new(name,type,value))
                end
                return res
            end
        end

        unless instance_methods.include?(:inner) then
            # Declares high-level bit inner signals named +names+.
            def inner(*names)
                self.make_inners(bit,*names)
            end
        end

        unless instance_methods.include?(:constant) then
            # Declares high-level untyped constant signals by name and
            # value given by +hsh+ of the current type.
            def constant(hsh)
                self.make_constants(bit,hsh)
            end
        end
    end
end