Class: SystemNavigation::ExpressionTree

Inherits:
Object
  • Object
show all
Defined in:
lib/system_navigation/expression_tree.rb

Overview

Since:

  • 0.1.0

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method: nil, source: nil) ⇒ ExpressionTree

Returns a new instance of ExpressionTree.

Since:

  • 0.1.0



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# File 'lib/system_navigation/expression_tree.rb', line 9

def initialize(method: nil, source: nil)
  @method = method
  @source = source
  @keywords = []
  @hashes = []
  @arrays = []
  @ranges = []
  @tree = nil
end

Class Method Details

.of(method:, source:) ⇒ Object

Since:

  • 0.1.0



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# File 'lib/system_navigation/expression_tree.rb', line 3

def self.of(method:, source:)
  tree = self.new(method: method, source: source)
  tree.parse
  tree
end

Instance Method Details

#includes?(obj) ⇒ Boolean

Returns:

  • (Boolean)

Since:

  • 0.1.0



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# File 'lib/system_navigation/expression_tree.rb', line 35

def includes?(obj)
  built = Ripper.sexp(obj.inspect)
  built_obj = built[1][0][1]

  collection = case obj
               when Array then @arrays
               when Hash then @hashes
               when Range then @ranges
               else
                 []
               end
  !!find_includes(collection, built_obj) || @keywords.include?(obj.inspect)
end

#parse ⇒ Object

Since:

  • 0.1.0



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# File 'lib/system_navigation/expression_tree.rb', line 19

def parse
  return false if [@method, @source].compact.empty?

  @tree = Ripper.sexp(@source)
  return false unless @tree

  parsed = @tree[1][0]
  return false unless parsed.first == :def

  method_body_tree = parsed[3][1]

  self.walk(method_body_tree)

  true
end