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tag: v3.1.0.rc6
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# Pre-1.9 versions of Ruby have a bug with marshaling Time instances, where utc instances are
# unmarshalled in the local zone, instead of utc. We're layering behavior on the _dump and _load
# methods so that utc instances can be flagged on dump, and coerced back to utc on load.
if !Marshal.load(Marshal.dump(Time.now.utc)).utc?
class Time
class << self
alias_method :_load_without_utc_flag, :_load
def _load(marshaled_time)
time = _load_without_utc_flag(marshaled_time)
time.instance_eval do
if defined?(@marshal_with_utc_coercion)
val = remove_instance_variable("@marshal_with_utc_coercion")
end
val ? utc : self
end
end
end
alias_method :_dump_without_utc_flag, :_dump
def _dump(*args)
obj = dup
obj.instance_variable_set('@marshal_with_utc_coercion', utc?)
obj._dump_without_utc_flag(*args)
end
end
end
# Ruby 1.9.2 adds utc_offset and zone to Time, but marshaling only
# preserves utc_offset. Preserve zone also, even though it may not
# work in some edge cases.
if Time.local(2010).zone != Marshal.load(Marshal.dump(Time.local(2010))).zone
class Time
class << self
alias_method :_load_without_zone, :_load
def _load(marshaled_time)
time = _load_without_zone(marshaled_time)
time.instance_eval do
if zone = defined?(@_zone) && remove_instance_variable('@_zone')
ary = to_a
ary[0] += subsec if ary[0] == sec
ary[-1] = zone
utc? ? Time.utc(*ary) : Time.local(*ary)
else
self
end
end
end
end
alias_method :_dump_without_zone, :_dump
def _dump(*args)
obj = dup
obj.instance_variable_set('@_zone', zone)
obj._dump_without_zone(*args)
end
end
end
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