Class: Ruby2JS::OpalEnumerator

Inherits:

Object

• Object
• Ruby2JS::OpalEnumerator

Defined in:

lib/ruby2js/jsx.rb

Overview

Opal’s enumerator doesn’t currently support next and peek methods. Build a wrapper that adds those methods.

Instance Method Summary

• #initialize(stream) ⇒ OpalEnumerator constructor

  A new instance of OpalEnumerator.

• #next ⇒ Object
• #peek ⇒ Object

Constructor Details

#initialize(stream) ⇒ OpalEnumerator

Returns a new instance of OpalEnumerator.

# File 'lib/ruby2js/jsx.rb', line 297

def initialize(stream)
  @stream = stream.to_a
end

Instance Method Details

#next ⇒ Object

Raises:

• (StopIteration)

# File 'lib/ruby2js/jsx.rb', line 301

def next
  raise StopIteration.new if @stream.empty?
  @stream.shift
end

#peek ⇒ Object

Raises:

• (StopIteration)

# File 'lib/ruby2js/jsx.rb', line 306

def peek
  raise StopIteration.new if @stream.empty?
  @stream.first
end