Class: Object

Inherits:
BasicObject
Defined in:
lib/nrser/labs/i8/surjection.rb,
lib/nrser/core_ext/object.rb,
lib/nrser/core_ext/object/lazy_var.rb

Overview

HACK

Instance Method Summary collapse

Instance Method Details

#as_array ⇒ Object

Call NRSER.as_array on ‘self`.



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# File 'lib/nrser/core_ext/object.rb', line 42

def as_array
  NRSER.as_array self
end

#as_hash(key = nil) ⇒ Object

Calls NRSER.as_hash on ‘self` with the provided `key`.



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# File 'lib/nrser/core_ext/object.rb', line 36

def as_hash key = nil
  NRSER.as_hash self, key
end

#falsy? ⇒ Boolean

See NRSER.falsy?.

Returns:

  • (Boolean) 


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# File 'lib/nrser/core_ext/object.rb', line 30

def falsy?
  NRSER.falsy? self
end

#if(proc_able, &block) ⇒ Object 



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# File 'lib/nrser/labs/i8/surjection.rb', line 15

def if proc_able, &block
  block.call( self ) if proc_able.to_proc.call( self )
end

#is?(other) ⇒ Boolean

Just an alias for ‘#equal?` that is easier for to remember.

Parameters:

  • other (*) —

    Something else.

Returns:

  • (Boolean) —

    ‘true` if `self` and `other` are the same object.



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# File 'lib/nrser/core_ext/object.rb', line 18

def is? other
  equal? other
end

#lazy_var(name, &block) ⇒ VALUE

If the instance variable ‘name` is not defined, sets it to the result of `&block`. Always returns the instance variable’s value.

Useful for lazy values that can be ‘nil` or `false`, since `||=` will always re-evaluate in their cases.

Parameters:

  • name (Symbol) —

    The name of the instance variable. Needs to have that ‘@` on the front, like `:@x`.

  • block (Proc<() => VALUE>) —

    The block to call to get the value.

Returns:

  • (VALUE) —

    The value of the instance variable.



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# File 'lib/nrser/core_ext/object/lazy_var.rb', line 23

def lazy_var name, &block
  unless instance_variable_defined? name
    instance_variable_set name, block.call
  end
  
  instance_variable_get name
end

#thru {|_self| ... } ⇒ Object

Yield ‘self`. Analogous to #tap but returns the result of the invoked block.

Yields:

  • (_self)

Yield Parameters:

  • _self (Object) —

    the object that the method was called on



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# File 'lib/nrser/core_ext/object.rb', line 5

def thru
  yield self
end

#truthy? ⇒ Boolean

See NRSER.truthy?.

Returns:

  • (Boolean) 


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# File 'lib/nrser/core_ext/object.rb', line 24

def truthy?
  NRSER.truthy? self
end

#unless(proc_able, &block) ⇒ Object 



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# File 'lib/nrser/labs/i8/surjection.rb', line 19

def unless proc_able, &block
  block.call( self ) unless proc_able.to_proc.call( self )
end