Class: Orbacle::TypingService

Inherits:
Object
  • Object
show all
Defined in:
lib/orbacle/typing_service.rb

Defined Under Namespace

Classes: UnknownNodeKindError

Constant Summary collapse

TypingError = 
Class.new(StandardError)

Instance Method Summary collapse

Constructor Details

#initialize(logger, stats) ⇒ TypingService

Returns a new instance of TypingService.



13
14
15
16
 
# File 'lib/orbacle/typing_service.rb', line 13

def initialize(logger, stats)
  @logger = logger
  @stats = stats
end

Instance Method Details

#call(graph, worklist, state) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/orbacle/typing_service.rb', line 18

def call(graph, worklist, state)
  @worklist = worklist
  @graph = graph
  @state = state

  stats.set_value(:initial_nodes, @graph.vertices.size)
  stats.set_value(:initial_message_sends, @worklist.message_sends.size)

  @graph.vertices.to_a.each {|v| @worklist.enqueue_node(v) }
  while !@worklist.nodes.empty?
    while !@worklist.nodes.empty?
      while !@worklist.nodes.empty?
        node = @worklist.pop_node
        @worklist.count_node(node)
        if !@worklist.limit_exceeded?(node)
          current_result = @state.type_of(node)
          new_result = compute_result(node, @graph.parent_vertices(node))
          raise ArgumentError.new(node) if new_result.nil?
          @state.set_type_of(node, new_result)
          stats.inc(:processed_nodes)
          logger.debug("Processed nodes: #{stats.counter(:processed_nodes)} remaining nodes #{@worklist.nodes.size} msends #{@worklist.handled_message_sends.size} / #{@worklist.message_sends.size}") if stats.counter(:processed_nodes) % 1000 == 0

          if current_result != @state.type_of(node)
            @graph.adjacent_vertices(node).each do |adjacent_node|
              @worklist.enqueue_node(adjacent_node)
            end
          end
        end
      end

      @worklist.message_sends.each do |message_send|
        case message_send
        when Worklist::MessageSend
          if satisfied_message_send?(message_send)
            handle_message_send(message_send)
          end
        when Worklist::SuperSend
          if satisfied_super_send?(message_send) && !@worklist.message_send_handled?(message_send)
            handle_super_send(message_send)
            @worklist.mark_message_send_as_handled(message_send, nil)
          end
        else raise "Not handled message send"
        end
      end
    end

    @worklist.message_sends.each do |message_send|
      case message_send
      when Worklist::MessageSend
        handle_message_send(message_send)
      when Worklist::SuperSend
        if !@worklist.message_send_handled?(message_send)
          handle_super_send(message_send)
          @worklist.mark_message_send_as_handled(message_send, nil)
        end
      else raise "Not handled message send"
      end
    end
  end
end