Module: ReversePolishCalculator::Errors

Defined in:
lib/reverse-polish-calculator/errors.rb

Constant Summary collapse

MethodMapping = 
{
  NoMethodError => :no_method_error,
  Math::DomainError => :math_domain_error
}
Classes = 
MethodMapping.keys

Class Method Summary collapse

Class Method Details

.handle(exception) ⇒ Object 



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# File 'lib/reverse-polish-calculator/errors.rb', line 11

def self.handle(exception)
  send(MethodMapping[exception.class], exception)
end

.math_domain_error(exception) ⇒ Object 



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# File 'lib/reverse-polish-calculator/errors.rb', line 20

def self.math_domain_error(exception)
  name = exception.message.match(/"(.+)"/)[1]
  ReversePolishCalculator.stack.remove(name)
  Helpers.multi_puts "Bad value for '#{name}'"
end

.no_method_error(exception) ⇒ Object 



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# File 'lib/reverse-polish-calculator/errors.rb', line 15

def self.no_method_error(exception)
  ReversePolishCalculator.stack.remove(exception.name)
  Helpers.multi_puts "Cannot calculate '#{exception.name}'"
end