Class: Kalculator::Formula

Inherits:
Object
  • Object
show all
Defined in:
lib/kalculator/formula.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(string) ⇒ Formula 



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# File 'lib/kalculator/formula.rb', line 5

def initialize(string)
  @ast = Kalculator::Parser.parse(Kalculator::Lexer.lex(string))
  @string = string
end

Instance Attribute Details

#ast ⇒ Object (readonly)

Returns the value of attribute ast.



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# File 'lib/kalculator/formula.rb', line 3

def ast
  @ast
end

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'lib/kalculator/formula.rb', line 3

def string
  @string
end

Instance Method Details

#evaluate(data_source = {}) ⇒ Object 



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# File 'lib/kalculator/formula.rb', line 10

def evaluate(data_source = {})
  Kalculator::Evaluator.new(data_source).evaluate(ast)
end