module FrozenVoid
a source of unalterable emptiness
Constants
- IMMUTABLE_EMPTY_ARRAY
- IMMUTABLE_EMPTY_SET
- IMMUTABLE_EMPTY_STRING
Public Class Methods
array()
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@example is empty
an_array = FrozenVoid.array an_array.empty? #=> true
@example cannot be added to
an_array = FrozenVoid.array an_array.push(:warmth) #=> raise FrozenError, "can't modify frozen Array: []"
@example is the same object as some other array from the void
an_array = FrozenVoid.array another_array = FrozenVoid.array an_array.equal?(another_array) #=> true
@return [Array] never to be filled
# File lib/frozen_void.rb, line 37 def self.array IMMUTABLE_EMPTY_ARRAY end
set()
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@example is empty
a_set = FrozenVoid.set a_set.empty? #=> true
@example cannot be added to
a_set = FrozenVoid.set a_set.add(:warmth) #=> raise FrozenError, "can't modify frozen Hash: {}"
@example is the same object as some other set from the void
a_set = FrozenVoid.set another_set = FrozenVoid.set a_set.equal?(another_set) #=> true
@return [Set] eternally empty
# File lib/frozen_void.rb, line 19 def self.set FrozenVoid::Set.new end
string()
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@example is empty
a_string = FrozenVoid.string a_string.empty? #=> true
@example cannot be modified
a_string = FrozenVoid.string a_string.upcase! #=> raise FrozenError, "can't modify frozen String: \"\""
@example is the same object as some other string from the void
a_string = FrozenVoid.string another_string = FrozenVoid.string a_string.equal?(another_string) #=> true
@return [String] forever bereft of character
# File lib/frozen_void.rb, line 55 def self.string IMMUTABLE_EMPTY_STRING end