Module: Rouge::Seq

Defined in:
lib/rouge/seq.rb

Overview

Functions, clases and modules concerning the ‘seq’ sequence abstraction.

Defined Under Namespace

Modules: ASeq, ISeq Classes: Array, Cons, Lazy

Constant Summary collapse

Empty =

An empty seq.

Object.new
UnknownSeqError =

An error thrown when we try to do a seq operation on something that’s not seqable.

Class.new(StandardError)

Class Method Summary collapse

Class Method Details

.seq(form) ⇒ Object 



276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
 
# File 'lib/rouge/seq.rb', line 276

def self.seq(form)
  case form
  when ISeq
    form.seq
  when NilClass
    form
  when ::Array
    if form.empty?
      nil
    else
      Rouge::Seq::Array.new(form, 0)
    end
  when Hash, Set, Enumerator
    seq(form.to_a)
  when String
    seq(form.chars)
  else
    raise UnknownSeqError, form.inspect
  end
end