Module: Rucas::Extensions

Defined in:
lib/rucas/extensions.rb

Constant Summary collapse

PATCH_HASH =

Avoid collisions with other patches; this maps operators (+,-, etc.) to normal method names, so they can be called without the additional overhead of Kernel#send.

Hash.new {|h,k| k}

Class Method Summary collapse

Class Method Details

.apply ⇒ Object

Patch system classes to make constants work with vars (e.g. 0 + x).



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# File 'lib/rucas/extensions.rb', line 68

def self.apply
  for c in Symbolic::CONST_CLASSES
    for op in Symbolic::BINARY_OPS.keys
      c.class_eval %Q{
        alias_method :#{without_rucas_name(op)}, :#{op}
        alias_method :#{op}, :#{with_rucas_name(op)}
      }
    end
    c.module_eval do
      alias_method :method_missing_without_rucas, :method_missing
      alias_method :method_missing, :method_missing_with_rucas
    end
  end
end

.unapply ⇒ Object

Get rid of patches.



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# File 'lib/rucas/extensions.rb', line 84

def self.unapply
  for c in Symbolic::CONST_CLASSES
    for op in Symbolic::BINARY_OPS.keys
      c.class_eval %Q{
        alias_method :#{with_rucas_name(op)}, :#{op}
        alias_method :#{op}, :#{without_rucas_name(op)}
      }
    end
    c.module_eval do
      alias_method :method_missing_with_rucas, :method_missing
      alias_method :method_missing, :method_missing_without_rucas
    end
  end
end

.with_rucas_name(original) ⇒ Object

See PATCH_HASH.



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# File 'lib/rucas/extensions.rb', line 32

def self.with_rucas_name original
  "#{PATCH_HASH[original]}__with_rucas"
end

.without_rucas_name(original) ⇒ Object

See PATCH_HASH.



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# File 'lib/rucas/extensions.rb', line 27

def self.without_rucas_name original
  "#{PATCH_HASH[original]}__without_rucas"
end