Module: LWES::ClassMaker

Included in:
Event, Struct
Defined in:
lib/lwes/class_maker.rb

Overview

:stopdoc: internal class

Instance Method Summary collapse

Instance Method Details

#class_for(options, dump) ⇒ Object 



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# File 'lib/lwes/class_maker.rb', line 14

def class_for(options, dump)
  klass = options[:class] || begin
    # make it easier to deal with single event files
    events = (dump.keys -  [ :MetaEventInfo ])
    events.size > 1 and
        raise RuntimeError,
              "multiple event defs available: #{events.inspect}\n" \
              "pick one with :class"
    events.first
  end
  name = options[:name] || klass.to_s
  event_def = dump[name.to_sym] or
    raise RuntimeError, "#{name.inspect} not defined in #{file}"
  [ klass, name, event_def ]
end

#set_constants(tmp, db, klass, name, options) ⇒ Object 



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# File 'lib/lwes/class_maker.rb', line 30

def set_constants(tmp, db, klass, name, options)
  tmp.const_set :TYPE_DB, db
  tmp.const_set :NAME, name.to_s.dup.freeze
  defaults = options[:defaults] || {}
  tmp.const_set :DEFAULTS, defaults.dup
  parent = options.include?(:parent) ? options[:parent] : Object
  parent or return
  components = klass.to_s.split(/::/)
  components.each_with_index do |component, i|
    if i == (components.size - 1)
      tmp = parent.const_set(component, tmp)
    else
      parent = begin
        parent.const_get(component)
      rescue NameError
        parent.const_set component, Module.new
      end
    end
  end
end

#type_db(options) ⇒ Object 



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# File 'lib/lwes/class_maker.rb', line 4

def type_db(options)
  options[:db] || begin
    file = options[:file] or
      raise ArgumentError, "TypeDB :db or ESF :file missing"
    File.readable?(file) or
      raise ArgumentError, "file #{file.inspect} not readable"
    LWES::TypeDB.new(file)
  end
end