Sha256: 18196aa2c9667505d0abb31b815f3358497b84cf2e033c9220928cf1f38de521
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Size: 1.37 KB
Versions: 9
Compression:
Stored size: 1.37 KB
Contents
class Hash
# New Ruby 1.8.7+ constructor -- not documented, see redmine # 1385
# <tt>Hash[[[:foo, :bar],[:hello, "world"]]] ==> {:foo => :bar, :hello => "world"}</tt>
unless (Hash[[[:test, :test]]] rescue false)
class << self
alias_method :constructor_without_key_value_pair_form, :[]
def [](*args)
return constructor_without_key_value_pair_form(*args) unless args.length == 1 && args.first.is_a?(Array)
h = {}
args.first.each do |arr|
next unless arr == Backports.is_array?(arr)
next unless (1..2).include? arr.size
h[arr.at(0)] = arr.at(1)
end
h
end
end
end
# Ruby 1.8.6 doesn't define a Hash specific hash method
def hash
h = 0
each do |key, value|
h ^= key.hash ^ value.hash
end
h
end unless {}.hash == {}.hash
# Ruby 1.8.6 doesn't define a Hash specific eql? method.
def eql?(other)
other.is_a?(Hash) &&
size == other.size &&
all? do |key, value|
other.fetch(key){return false}.eql?(value)
end
end unless {}.eql?({})
Backports.make_block_optional self, :delete_if, :each, :each_key, :each_pair, :each_value, :reject, :reject!, :select, :test_on => {:hello => "world!"}
# Standard in Ruby 1.8.7+. See official documentation[http://ruby-doc.org/core-1.9/classes/Hash.html]
Backports.alias_method self, :key, :index
end
Version data entries
9 entries across 9 versions & 1 rubygems