Class: Astel::NodePattern::PredicateCompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/astel/node_pattern/predicate_compiler.rb

Constant Summary collapse

NODE_CLASSES = 
Prism.constants.filter_map do |constant|
  value = Prism.const_get(constant)
  next unless value.is_a?(Class) && value < Prism::Node

  type = NodeType.from_class_name(constant.to_s)
  [type, value]
rescue NameError
  nil
end.to_h.freeze

Instance Method Summary collapse

Instance Method Details

#compile(pattern) ⇒ Object 



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# File 'lib/astel/node_pattern/predicate_compiler.rb', line 16

def compile(pattern)
  @variable = 0
  expression = expression_for(pattern, 'value')
  eval("->(value) { #{expression} }", binding, __FILE__, __LINE__)
end