1
2
3
4
5
6
7
8
9
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
|
module Morpher
class Evaluator
# Mixin for binary evaluators
module Binary
CONCORD = Concord::Public.new(:left, :right)
PRINTER = lambda do |_|
name
indent do
visit(:left)
visit(:right)
end
end
# Return node
#
# @return [AST::Node]
#
# @api private
#
def node
s(type, left.node, right.node)
end
private
# Hook called when module gets included
#
# @return [undefined]
#
# @api private
#
def self.included(descendant)
descendant.class_eval do
include CONCORD
printer(&PRINTER)
end
end
private_class_method :included
end # Nary
end # Evaluator
end # Morpher
|
