Class: Rinda::Tuple

Inherits:
Object
  • Object
show all
Defined in:
lib/rinda/rinda.rb

Overview

A tuple is the elementary object in Rinda programming. Tuples may be matched against templates if the tuple and the template are the same size.

Instance Method Summary collapse

Constructor Details

#initialize(ary_or_hash) ⇒ Tuple

Creates a new Tuple from ary_or_hash which must be an Array or Hash.



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# File 'lib/rinda/rinda.rb', line 52

def initialize(ary_or_hash)
  if hash?(ary_or_hash)
    init_with_hash(ary_or_hash)
  else
    init_with_ary(ary_or_hash)
  end
end

Instance Method Details

#[](k) ⇒ Object

Accessor method for elements of the tuple.



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# File 'lib/rinda/rinda.rb', line 70

def [](k)
  @tuple[k]
end

#each ⇒ Object

Iterate through the tuple, yielding the index or key, and the value, thus ensuring arrays are iterated similarly to hashes.



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# File 'lib/rinda/rinda.rb', line 85

def each # FIXME
  if Hash === @tuple
    @tuple.each { |k, v| yield(k, v) }
  else
    @tuple.each_with_index { |v, k| yield(k, v) }
  end
end

#fetch(k) ⇒ Object

Fetches item k from the tuple.



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# File 'lib/rinda/rinda.rb', line 77

def fetch(k)
  @tuple.fetch(k)
end

#size ⇒ Object

The number of elements in the tuple.



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# File 'lib/rinda/rinda.rb', line 63

def size
  @tuple.size
end

#value ⇒ Object

Return the tuple itself



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# File 'lib/rinda/rinda.rb', line 95

def value
  @tuple
end