Class: VHDL_Parser::Entity

Inherits:
Object
  • Object
show all
Defined in:
lib/vhdl_parser/entity.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Entity

Returns a new instance of Entity.



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# File 'lib/vhdl_parser/entity.rb', line 16

def initialize(name)
  @name = name
  @ports = Array.new
  @generics = Array.new
end

Instance Attribute Details

#generics ⇒ Array<Generic> (readonly)

An array of all the Generics.

Returns:

  • (Array<Generic>) —

    An array of all the Generics on this entity.



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# File 'lib/vhdl_parser/entity.rb', line 10

def generics
  @generics
end

#name ⇒ String (readonly)

The name of the Entity.

Returns:

  • (String) —

    The name of the Entity



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# File 'lib/vhdl_parser/entity.rb', line 14

def name
  @name
end

#ports ⇒ Array<Port> (readonly)

An array of all the Ports.

Returns:

  • (Array<Port>) —

    An array of all the Ports on this entity.



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# File 'lib/vhdl_parser/entity.rb', line 6

def ports
  @ports
end

Instance Method Details

#merge_package(package) ⇒ nil

Applies constants from a package to the entity. For example, if the Entity has an input whose size is defined with a constant, like “std_logic_vector(MY_SIZE-1 downto 0)”, and “MY_SIZE” is defined in the package, this method will evaluate the size to a real number.

Parameters:

  • Package (package) —

    The package instance to merge.

Returns:

  • (nil) —

    Nothing



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# File 'lib/vhdl_parser/entity.rb', line 39

def merge_package(package)
  # TODO: do some type checking
  @generics.each do |g|
    package.constants.each do |k,v|
      unless g.value.nil?
        g.value = Utility.sub_constants(g.value, k, v)
      end

      unless g.left.nil?
        g.left = Utility.sub_constants(g.left, k, v)
      end

      unless g.right.nil?
        g.right = Utility.sub_constants(g.right, k, v)
      end
    end
    nil
  end

  @ports.each do |p|
    package.constants.each do |k,v|
      unless p.left.nil?
        p.left = Utility.sub_constants(p.left, k, v)
      end

      unless p.right.nil?
        p.right = Utility.sub_constants(p.right, k, v)
      end
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/vhdl_parser/entity.rb', line 23

def to_s
  out = name + "\n"
  @generics.each { |p| out += "\t" + p.to_s}
  out += "\n\n"
  @ports.each { |p| out += "\t" + p.to_s}
  out
end