Class: NilClass

Inherits:
Object
  • Object
show all
Defined in:
documented/common/class_exts/nilclass.rb

Overview

Extends the NilClass to provide additional methods. This class overrides several methods to return nil or empty values.

Examples:

Using NilClass methods

nil.dup # => nil
nil.split # => []

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*_args) ⇒ NilClass

Handles calls to methods that do not exist on nil.

Examples:

nil.some_method # => nil

Parameters:

  • _args (Array) —

    The arguments passed to the missing method.

Returns:



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# File 'documented/common/class_exts/nilclass.rb', line 23

def method_missing(*_args)
  nil
end

Instance Method Details

#+(val) ⇒ Object

Adds a value to nil.

Examples:

nil + 5 # => 5

Parameters:

  • val (Object) —

    The value to add to nil.

Returns:

  • (Object) —

    Returns the value passed in.



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# File 'documented/common/class_exts/nilclass.rb', line 57

def +(val)
  val
end

#closed? ⇒ Boolean

Checks if nil is closed.

Examples:

nil.closed? # => true

Returns:

  • (Boolean) —

    Always returns true.



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# File 'documented/common/class_exts/nilclass.rb', line 65

def closed?
  true
end

#dup ⇒ NilClass

Returns a duplicate of nil.

Examples:

nil.dup # => nil

Returns:



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# File 'documented/common/class_exts/nilclass.rb', line 14

def dup
  nil
end

#split(*_val) ⇒ Array

Splits nil into an array.

Examples:

nil.split # => []

Parameters:

  • _val (Array) —

    The delimiter(s) to split by (ignored).

Returns:

  • (Array) —

    Returns an empty array.



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# File 'documented/common/class_exts/nilclass.rb', line 32

def split(*_val)
  Array.new
end

#strip ⇒ String

Strips whitespace from nil.

Examples:

nil.strip # => ""

Returns:

  • (String) —

    Returns an empty string.



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# File 'documented/common/class_exts/nilclass.rb', line 48

def strip
  ""
end

#to_s ⇒ String

Converts nil to a string.

Examples:

nil.to_s # => ""

Returns:

  • (String) —

    Returns an empty string.



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# File 'documented/common/class_exts/nilclass.rb', line 40

def to_s
  ""
end