Class: NilClass

Inherits:

Object

• Object
• NilClass

Defined in:

lib/multiarray.rb

Overview

NilClass is extended with a few methods

Instance Method Summary

• #and(other) ⇒ FalseClass

  Boolean ‘and’ operation.

• #compilable? ⇒ FalseClass, TrueClass

  Check whether this term is compilable.

• #conditional(a, b) ⇒ Object

  Boolean select operation.

• #not ⇒ FalseClass

  Boolean negation.

• #or(other) ⇒ FalseClass, TrueClass

  Boolean ‘or’ operation.

Instance Method Details

#and(other) ⇒ FalseClass

Boolean ‘and’ operation

Parameters:

• other (FalseClass, TrueClass, Object) —

  Other boolean object.

Returns:

• (FalseClass) —

  Returns false.

See Also:

• Object#and
• FalseClass#and

# File 'lib/multiarray.rb', line 197

def and( other )
  unless other.is_a? Hornetseye::Node
    self
  else
    x, y = other.coerce self
    x.and y
  end
end

#compilable? ⇒ FalseClass, TrueClass

Check whether this term is compilable

Returns:

• (FalseClass, TrueClass) —

  Returns false

# File 'lib/multiarray.rb', line 239

def compilable?
  false
end

#conditional(a, b) ⇒ Object

Boolean select operation

Parameters:

• a (Object) —

  Object to select if self is neither false nor nil.

• b (Object) —

  Object to select if self is false or nil.

Returns:

• (Object) —

  Returns b.

See Also:

• Object#conditional
• FalseClass#conditional

# File 'lib/multiarray.rb', line 230

def conditional( a, b )
  b
end

#not ⇒ FalseClass

Boolean negation

Returns:

• (FalseClass) —

  Returns false.

See Also:

• Object#not
• FalseClass#not

# File 'lib/multiarray.rb', line 186

def not
   true
end

#or(other) ⇒ FalseClass, TrueClass

Boolean ‘or’ operation

Parameters:

• other (FalseClass, TrueClass, Object) —

  Other boolean object.

Returns:

• (FalseClass, TrueClass) —

  Returns other.

See Also:

• Object#or
• FalseClass#or

# File 'lib/multiarray.rb', line 213

def or( other )
  unless other.is_a? Hornetseye::Node
    other
  else
    x, y = other.coerce self
    x.or y
  end
end