Module: RubyIs

Defined in:
lib/ruby_is.rb,
lib/ruby_is/version.rb

Constant Summary collapse

VERSION = 
"1.0.1"

Class Method Summary collapse

Class Method Details

.block(&b) ⇒ Object 



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# File 'lib/ruby_is.rb', line 14

def block(&b); b; end

.cache ⇒ Object 



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# File 'lib/ruby_is.rb', line 16

def cache; @@cache ||= {}; end

.proc_or_block(args, block) ⇒ Object 



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# File 'lib/ruby_is.rb', line 5

def proc_or_block(args, block)
  case
  when args.empty?       && block      then block
  when (args.count == 1) && block.nil? then args.first
  else
    raise "Incorrect syntax for `is` statement"
  end
end

.with_memo(f) ⇒ Object 



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# File 'lib/ruby_is.rb', line 18

def with_memo(f)
  ->(*args, &proc){
    cache = RubyIs.cache
    cache_key = [f, args, proc]
    if cache.has_key?(cache_key)
      cache[cache_key]
    else
      cache[cache_key] = f.call(*args, &proc)
    end
  }
end