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Diffstat (limited to 'ruby/lib/google/protobuf/repeated_field.rb')
| -rw-r--r-- | ruby/lib/google/protobuf/repeated_field.rb | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/ruby/lib/google/protobuf/repeated_field.rb b/ruby/lib/google/protobuf/repeated_field.rb deleted file mode 100644 index 831e0320..00000000 --- a/ruby/lib/google/protobuf/repeated_field.rb +++ /dev/null @@ -1,188 +0,0 @@ -# Protocol Buffers - Google's data interchange format -# Copyright 2008 Google Inc. All rights reserved. -# https://developers.google.com/protocol-buffers/ -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following disclaimer -# in the documentation and/or other materials provided with the -# distribution. -# * Neither the name of Google Inc. nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -require 'forwardable' - -# -# This class makes RepeatedField act (almost-) like a Ruby Array. -# It has convenience methods that extend the core C or Java based -# methods. -# -# This is a best-effort to mirror Array behavior. Two comments: -# 1) patches always welcome :) -# 2) if performance is an issue, feel free to rewrite the method -# in jruby and C. The source code has plenty of examples -# -# KNOWN ISSUES -# - #[]= doesn't allow less used approaches such as `arr[1, 2] = 'fizz'` -# - #concat should return the orig array -# - #push should accept multiple arguments and push them all at the same time -# -module Google - module Protobuf - class RepeatedField - extend Forwardable - - # methods defined in C or Java: - # + - # [], at - # []= - # concat - # clear - # dup, clone - # each - # push, << - # replace - # length, size - # == - # to_ary, to_a - # also all enumerable - # - # NOTE: using delegators rather than method_missing to make the - # relationship explicit instead of implicit - def_delegators :to_ary, - :&, :*, :-, :'<=>', - :assoc, :bsearch, :bsearch_index, :combination, :compact, :count, - :cycle, :dig, :drop, :drop_while, :eql?, :fetch, :find_index, :flatten, - :include?, :index, :inspect, :join, - :pack, :permutation, :product, :pretty_print, :pretty_print_cycle, - :rassoc, :repeated_combination, :repeated_permutation, :reverse, - :rindex, :rotate, :sample, :shuffle, :shelljoin, :slice, - :to_s, :transpose, :uniq, :| - - - def first(n=nil) - n ? self[0..n] : self[0] - end - - - def last(n=nil) - n ? self[(self.size-n-1)..-1] : self[-1] - end - - - def pop(n=nil) - if n - results = [] - n.times{ results << pop_one } - return results - else - return pop_one - end - end - - - def empty? - self.size == 0 - end - - # array aliases into enumerable - alias_method :each_index, :each_with_index - alias_method :slice, :[] - alias_method :values_at, :select - alias_method :map, :collect - - - class << self - 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 - private :define_array_wrapper_method - - - 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 - private :define_array_wrapper_with_result_method - end - - - %w(delete delete_at delete_if shift slice! unshift).each do |method_name| - define_array_wrapper_method(method_name) - end - - - %w(collect! compact! fill flatten! insert reverse! - rotate! select! shuffle! sort! sort_by! uniq!).each do |method_name| - define_array_wrapper_with_result_method(method_name) - end - alias_method :keep_if, :select! - alias_method :map!, :collect! - alias_method :reject!, :delete_if - - - # propagates changes made by user of enumerator back to the original repeated field. - # This only applies in cases where the calling function which created the enumerator, - # such as #sort!, modifies itself rather than a new array, such as #sort - class ProxyingEnumerator < Struct.new(:repeated_field, :external_enumerator) - def each(*args, &block) - results = [] - external_enumerator.each_with_index do |val, i| - result = yield(val) - results << result - #nil means no change occurred from yield; usually occurs when #to_a is called - if result - repeated_field[i] = result if result != val - end - end - results - end - end - - - end - end -end |