Class: BinderCore::Compiler::Iterator

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

Overview

:nodoc:

Instance Method Summary collapse

Constructor Details

#initialize(collection = nil) ⇒ Iterator

Returns a new instance of Iterator.



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# File 'lib/binder_core/compiler.rb', line 58

def initialize(collection=nil)
  init collection unless collection.nil?
end

Instance Method Details

#count ⇒ Object 



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# File 'lib/binder_core/compiler.rb', line 83

def count
  @que.length
end

#has_next? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/binder_core/compiler.rb', line 79

def has_next?
  @step < count-1
end

#init(collection) ⇒ Object 



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# File 'lib/binder_core/compiler.rb', line 62

def init(collection)
  @collection = collection
  @keys = []
  @que = []
  @step = -1
  
  if collection.is_a? Array
    collection.length.times { |n| @keys << n }
    @que = collection.dup
  elsif collection.is_a? Hash
    collection.keys.each do |key|
      @keys << key
      @que << collection[key]
    end
  end
end

#next ⇒ Object 



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# File 'lib/binder_core/compiler.rb', line 87

def next
  @step += 1
  @que[@step]
end

#replace(new_val) ⇒ Object 



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# File 'lib/binder_core/compiler.rb', line 92

def replace(new_val)
  @collection[@keys[@step]] = new_val
end