Module: Factbase::Debug

Included in:
Term
Defined in:
lib/factbase/terms/debug.rb

Overview

Debug terms.

Author

Yegor Bugayenko ([email protected])

Copyright

Copyright © 2024-2025 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Instance Method Details

#assert(fact, maps, fb) ⇒ Object 



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/factbase/terms/debug.rb', line 23

def assert(fact, maps, fb)
  assert_args(2)
  message = @operands[0]
  unless message.is_a?(String)
    raise ArgumentError,
          "A string is expected as first argument of 'assert', but '#{message}' provided"
  end
  t = @operands[1]
  unless t.is_a?(Factbase::Term)
    raise ArgumentError,
          "A term is expected as second argument of 'assert', but '#{t}' provided"
  end
  result = t.evaluate(fact, maps, fb)
  # Convert result to boolean-like evaluation
  # Arrays are truthy if they contain at least one truthy element
  truthy =
    if result.is_a?(Array)
      result.any? { |v| v && v != 0 }
    else
      result && result != 0
    end
  raise message unless truthy
  true
end

#traced(fact, maps, fb) ⇒ Object 



14
15
16
17
18
19
20
21
 
# File 'lib/factbase/terms/debug.rb', line 14

def traced(fact, maps, fb)
  assert_args(1)
  t = @operands[0]
  raise "A term is expected, but '#{t}' provided" unless t.is_a?(Factbase::Term)
  r = t.evaluate(fact, maps, fb)
  puts "#{self} -> #{r}"
  r
end