Class: Seafoam::IsabelleWriter

Inherits:
Object
  • Object
show all
Defined in:
lib/seafoam/isabelle_writer.rb

Overview

Write graphs in the Isabelle file format.

Instance Method Summary collapse

Constructor Details

#initialize(out) ⇒ IsabelleWriter

Returns a new instance of IsabelleWriter.



6
7
8
 
# File 'lib/seafoam/isabelle_writer.rb', line 6

def initialize(out)
  @out = out
end

Instance Method Details

#write(index, name, graph) ⇒ Object 



10
11
12
13
14
15
16
17
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
 
# File 'lib/seafoam/isabelle_writer.rb', line 10

def write(index, name, graph)
  # definition eg_short_cut_or1 :: IRGraph where
  #   "eg_short_cut_or1 =
  #     (add_node 14 ReturnNode [13] []
  #     (add_node 13 PhiNode [10, 11, 12] []
  #     (add_node 12 (ConstantNode 0) [] []
  #     (add_node 11 (ConstantNode 42) [] []
  #     (add_node 10 MergeNode [7, 9] [14]
  #     (add_node 9 EndNode [] []
  #     (add_node 8 BeginNode [] [9]
  #     (add_node 7 EndNode [] []
  #     (add_node 6 BeginNode [] [7]
  #     (add_node 5 IfNode [3] [6, 8]
  #     (add_node 3 (ShortCircuitOrNode False False) [1, 2] []
  #     (add_node 2 (ParameterNode 1) [] []
  #     (add_node 1 (ParameterNode 0) [] []
  #     (add_node 0 StartNode [] [5]
  #     empty_graph))))))))))))))"

  @out.puts "graph#{index} = # #{name}"

  graph.nodes.each_value do |node|
    node_class = node.props[:node_class][:node_class]
    desc = case node_class
    when "org.graalvm.compiler.nodes.ConstantNode"
      "(ConstantNode #{node.props["rawvalue"]})"
    when "org.graalvm.compiler.nodes.ParameterNode"
      "(ParameterNode #{node.props["index"]})"
    else
      node_class.split(".").last
    end
    inputs = node.inputs.map(&:from).map(&:id)
    outputs = node.outputs.map(&:to).map(&:id)
    @out.puts " (add_node #{node.id} #{desc} #{inputs.inspect} #{outputs.inspect}"
  end
  @out.puts " empty_graph" + (")" * graph.nodes.size)
end