class TZInfo::TimezoneProxy

exception will be raised at this point.
real Timezone is loaded. If the proxy’s identifier was not valid, then an
The first time an attempt is made to access the data for the timezone, the
Timezone.get.
inherits from Timezone and can be treated like any Timezone loaded with
A proxy class representing a timezone with a given identifier. TimezoneProxy

def self._load(data)

Loads a marshalled TimezoneProxy. 
def self._load(data)
  TimezoneProxy.new(data)
end

def self.new(identifier)

when the real Timezone is loaded.
is not checked when constructing the proxy. It will be validated on the
Construct a new TimezoneProxy for the given identifier. The identifier 
def self.new(identifier)
  # Need to override new to undo the behaviour introduced in Timezone#new.
  tzp = super()
  tzp.send(:setup, identifier)
  tzp
end

def _dump(limit)

Dumps this TimezoneProxy for marshalling. 
def _dump(limit)
  identifier
end

def identifier

The identifier of the timezone, e.g. "Europe/Paris". 
def identifier
  @real_timezone ? @real_timezone.identifier : @identifier
end

def period_for_utc(utc)

information in utc is ignored (it is treated as a UTC time).
a DateTime, Time or integer timestamp (Time.to_i). Any timezone
Returns the TimezonePeriod for the given UTC time. utc can either be 
def period_for_utc(utc)            
  real_timezone.period_for_utc(utc)            
end

def periods_for_local(local)

Returns an empty array if no periods are found for the given time.
period_for_local instead and specify how abiguities should be resolved.
local time as an array. If you just want a single period, use
Returns the set of TimezonePeriod instances that are valid for the given 
def periods_for_local(local)
  real_timezone.periods_for_local(local)
end

def real_timezone 

def real_timezone
  @real_timezone ||= Timezone.get(@identifier)
end

def setup(identifier) 

def setup(identifier)
  @identifier = identifier
  @real_timezone = nil
end