class Google::Protobuf::RepeatedField
Private Class Methods
define_array_wrapper_method(method_name)
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# File lib/google/protobuf/repeated_field.rb, line 114 def define_array_wrapper_method(method_name) define_method(method_name) do |*args, &block| arr = self.to_a result = arr.send(method_name, *args) self.replace(arr) return result if result return block ? block.call : result end end
define_array_wrapper_with_result_method(method_name)
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# File lib/google/protobuf/repeated_field.rb, line 126 def define_array_wrapper_with_result_method(method_name) define_method(method_name) do |*args, &block| # result can be an Enumerator, Array, or nil # Enumerator can sometimes be returned if a block is an optional argument and it is not passed in # nil usually specifies that no change was made result = self.to_a.send(method_name, *args, &block) if result new_arr = result.to_a self.replace(new_arr) if result.is_a?(Enumerator) # generate a fresh enum; rewinding the exiting one, in Ruby 2.2, will # reset the enum with the same length, but all the #next calls will # return nil result = new_arr.to_enum # generate a wrapper enum so any changes which occur by a chained # enum can be captured ie = ProxyingEnumerator.new(self, result) result = ie.to_enum end end result end end
Public Instance Methods
empty?()
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# File lib/google/protobuf/repeated_field.rb, line 102 def empty? self.size == 0 end
first(n=nil)
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# File lib/google/protobuf/repeated_field.rb, line 81 def first(n=nil) n ? self[0..n] : self[0] end
last(n=nil)
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# File lib/google/protobuf/repeated_field.rb, line 86 def last(n=nil) n ? self[(self.size-n-1)..-1] : self[-1] end
pop(n=nil)
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# File lib/google/protobuf/repeated_field.rb, line 91 def pop(n=nil) if n results = [] n.times{ results << pop_one } return results else return pop_one end end