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

Returns a new instance of Formula.



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# File 'lib/kalculator/formula.rb', line 6

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 4

def ast
  @ast
end

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'lib/kalculator/formula.rb', line 4

def string
  @string
end

Instance Method Details

#evaluate(data_source = {}, custom_functions = {}) ⇒ Object 



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# File 'lib/kalculator/formula.rb', line 15

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

#validate(type_source = Kalculator::TypeSources.new(Hash.new)) ⇒ Object 



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# File 'lib/kalculator/formula.rb', line 11

def validate( type_source = Kalculator::TypeSources.new(Hash.new))
  Kalculator::Validator.new(type_source).validate(ast)
end