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require 'active_support/core_ext/module/attribute_accessors'
require 'active_support/core_ext/module/delegation'
module ActiveSupport
# Look for and parse json strings that look like ISO 8601 times.
mattr_accessor :parse_json_times
module JSON
# Listed in order of preference.
DECODERS = %w(Yajl Yaml)
class << self
attr_reader :parse_error
delegate :decode, :to => :backend
def backend
set_default_backend unless defined?(@backend)
@backend
end
def backend=(name)
if name.is_a?(Module)
@backend = name
else
require "active_support/json/backends/#{name.to_s.downcase}"
@backend = ActiveSupport::JSON::Backends::const_get(name)
end
@parse_error = @backend::ParseError
end
def with_backend(name)
old_backend, self.backend = backend, name
yield
ensure
self.backend = old_backend
end
def set_default_backend
DECODERS.find do |name|
begin
self.backend = name
true
rescue LoadError
# Try next decoder.
false
end
end
end
end
end
end
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