Class: StateMachine::YARD::Handlers::Machine

Inherits:
Base
  • Object
show all
Defined in:
lib/state_machine/yard/handlers/machine.rb

Overview

Handles and processes #state_machine

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#machineObject (readonly)

The generated state machine


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# File 'lib/state_machine/yard/handlers/machine.rb', line 12

def machine
  @machine
end

Instance Method Details

#processObject


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# File 'lib/state_machine/yard/handlers/machine.rb', line 14

def process
  # Cross-file storage for state machines
  globals.state_machines ||= Hash.new {|h, k| h[k] = {}}
  namespace['state_machines'] ||= {}
  
  # Create new machine
  klass = inherited_machine ? Class.new(inherited_machine.owner_class) : Class.new { extend StateMachine::MacroMethods }
  @machine = klass.state_machine(name, options) {}
  
  # Track the state machine
  globals.state_machines[namespace.name][name] = machine
  namespace['state_machines'][name] = {:name => name, :description => statement.docstring}
  
  # Parse the block
  parse_block(statement.last.last, :owner => machine)
  
  # Draw the machine for reference in the template
  file = Tempfile.new(['state_machine', '.png'])
  begin
    if machine.draw(:name => File.basename(file.path, '.png'), :path => File.dirname(file.path), :orientation => 'landscape')
      namespace['state_machines'][name][:image] = file.read
    end
  ensure
    # Clean up tempfile
    file.close
    file.unlink
  end
  
  # Define auto-generated methods
  define_macro_methods
  define_state_methods
  define_event_methods
end