Hash
# File lib/bson/ordered_hash.rb, line 58 def self.[] *args oh = BSON::OrderedHash.new if Hash === args[0] oh.merge! args[0] elsif (args.size % 2) != 0 raise ArgumentError, "odd number of elements for Hash" else 0.step(args.size - 1, 2) do |key| value = key + 1 oh[args[key]] = args[value] end end oh end
# File lib/bson/ordered_hash.rb, line 23 def ==(other) begin case other when BSON::OrderedHash keys == other.keys && values == other.values else super end rescue false end end
# File lib/bson/ordered_hash.rb, line 87 def []=(key, value) unless has_key?(key) @ordered_keys << key end super(key, value) end
# File lib/bson/ordered_hash.rb, line 167 def clear super @ordered_keys = [] end
# File lib/bson/ordered_hash.rb, line 141 def delete(key, &block) @ordered_keys.delete(key) if @ordered_keys super end
# File lib/bson/ordered_hash.rb, line 146 def delete_if(&block) keys.each do |key| if yield key, self[key] delete(key) end end self end
# File lib/bson/ordered_hash.rb, line 127 def dup result = OrderedHash.new @ordered_keys.each do |key| result[key] = self[key] end result end
# File lib/bson/ordered_hash.rb, line 94 def each @ordered_keys.each { |k| yield k, self[k] } self end
# File lib/bson/ordered_hash.rb, line 187 def eql?(o) if o.instance_of? BSON::OrderedHash self.hash == o.hash else false end end
Allows activesupport Array#extract_options! to extract options when they are instance of BSON::OrderedHash
@return [true, false] true if options can be extracted
# File lib/bson/ordered_hash.rb, line 40 def extractable_options? instance_of?(BSON::OrderedHash) end
# File lib/bson/ordered_hash.rb, line 178 def hash code = 17 each_pair do |key, value| code = 37 * code + key.hash code = 37 * code + value.hash end code & 0x7fffffff end
# File lib/bson/ordered_hash.rb, line 172 def initialize_copy(original) super @ordered_keys = original.ordered_keys.dup end
# File lib/bson/ordered_hash.rb, line 135 def inspect str = "#<BSON::OrderedHash:0x#{self.object_id.to_s(16)} {" str << (@ordered_keys || []).collect { |k| "\"#{k}\"=>#{self.[](k).inspect}" }.join(", ") str << '}>' end
# File lib/bson/ordered_hash.rb, line 83 def keys @ordered_keys.dup end
# File lib/bson/ordered_hash.rb, line 113 def merge(other) oh = self.dup oh.merge!(other) oh end
# File lib/bson/ordered_hash.rb, line 119 def merge!(other) @ordered_keys += other.keys # unordered if not an BSON::OrderedHash @ordered_keys.uniq! super(other) end
# File lib/bson/ordered_hash.rb, line 44 def reject return to_enum(:reject) unless block_given? dup.tap {|hash| hash.reject!{|k, v| yield k, v}} end
# File lib/bson/ordered_hash.rb, line 155 def reject! return to_enum(:reject!) unless block_given? raise "can't modify frozen BSON::OrderedHash" if frozen? keys = @ordered_keys.dup @ordered_keys.each do |k| if yield k, self[k] keys.delete(k) end end keys == @ordered_keys ? nil : @ordered_keys = keys end
# File lib/bson/ordered_hash.rb, line 108 def replace(other) @ordered_keys.replace(other.keys) super end
# File lib/bson/ordered_hash.rb, line 49 def select return to_enum(:select) unless block_given? dup.tap {|hash| hash.reject!{|k, v| ! yield k, v}} end
# File lib/bson/ordered_hash.rb, line 100 def to_a @ordered_keys.map { |k| [k, self[k]] } end
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