Extended maintenance of Ruby 1.9.3 ended on February 23, 2015. Read more
Templates are used to match tuples in Rinda.
Alias for match.
# File rinda/rinda.rb, line 169 def ===(tuple) match(tuple) end
Matches this template against tuple
. The tuple
must be the same size as the template. An element with a nil
value in a template acts as a wildcard, matching any value in the
corresponding position in the tuple. Elements of the template match the
tuple
if the are #== or ===.
Template.new([:foo, 5]).match Tuple.new([:foo, 5]) # => true Template.new([:foo, nil]).match Tuple.new([:foo, 5]) # => true Template.new([String]).match Tuple.new(['hello']) # => true Template.new([:foo]).match Tuple.new([:foo, 5]) # => false Template.new([:foo, 6]).match Tuple.new([:foo, 5]) # => false Template.new([:foo, nil]).match Tuple.new([:foo]) # => false Template.new([:foo, 6]).match Tuple.new([:foo]) # => false
# File rinda/rinda.rb, line 148 def match(tuple) return false unless tuple.respond_to?(:size) return false unless tuple.respond_to?(:fetch) return false unless self.size == tuple.size each do |k, v| begin it = tuple.fetch(k) rescue return false end next if v.nil? next if v == it next if v === it return false end return true end
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