class FFI::ConstGenerator::Constant

This class hold constants for {ConstGenerator}

Attributes

Public Class Methods

new (name, format, cast, ruby_name = nil, converter=nil)

@param [#to_s] name @param [String] format a printf format string to print the value out @param [String] cast a C cast for the value @param ruby_name alternate ruby name for {#to_ruby} @param [#call] converter convert the value from a string to the appropriate

type for {#to_ruby}.

# File lib/ffi/tools/const_generator.rb, line 199
def initialize(name, format, cast, ruby_name = nil, converter=nil)
  @name = name
  @format = format
  @cast = cast
  @ruby_name = ruby_name
  @converter = converter
  @value = nil
end

Public Instance Methods

converted_value ()

Return constant value (converted if a converter was defined). @return constant value.

# File lib/ffi/tools/const_generator.rb, line 210
def converted_value
  if @converter
    @converter.call(@value)
  else
    @value
  end
end

ruby_name ()

get constant ruby name @return [String]

# File lib/ffi/tools/const_generator.rb, line 220
def ruby_name
  @ruby_name || @name
end

to_ruby ()

Get an evaluable string from constant. @return [String]

# File lib/ffi/tools/const_generator.rb, line 226
def to_ruby
  "#{ruby_name} = #{converted_value}"
end