Module: Matrix::CoercionHelper

Included in:
Matrix
Defined in:
lib/matrix.rb

Overview

:nodoc:

Class Method Summary (collapse)

Class Method Details

+ (Object) coerce_to(obj, cls, meth)

Helper method to coerce a value into a specific class. Raises a TypeError if the coercion fails or the returned value is not of the right class. (from Rubinius)

Raises:

  • (TypeError) 


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# File 'lib/matrix.rb', line 1092

def self.coerce_to(obj, cls, meth) # :nodoc:
  return obj if obj.kind_of?(cls)

  begin
    ret = obj.__send__(meth)
  rescue Exception => e
    raise TypeError, "Coercion error: #{obj.inspect}.#{meth} => #{cls} failed:\n" \
                     "(#{e.message})"
  end
  raise TypeError, "Coercion error: obj.#{meth} did NOT return a #{cls} (was #{ret.class})" unless ret.kind_of? cls
  ret
end

+ (Object) coerce_to_int(obj) 



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# File 'lib/matrix.rb', line 1105

def self.coerce_to_int(obj)
  coerce_to(obj, Integer, :to_int)
end