[Puppet Users] puppet parser order random

[巨海录]

# ntp/manifests/init.pp
class ntp (
  $var_01 = '/etc/ntp.conf',
  $var_02 = 'ntp/ntp.conf.erb',
) {
  include ::ntp::params
  include ::ntp:install
}

# ntp/manifests/params.pp
class ntp::params {
  $var_03 = 'no.3'
  $var_o4 = 'no.4'
}

# ntp/manifests/install.pp
class ntp::install {
  notify {"var_01 == ${ntp::var01}": }
  notify {"var_01 == ${ntp::var02}": }
  notify {"var_03 == ${ntp::params::var_03}": }
  notify {"var_04 == ${ntp::params::var_04}": }
}

# site.pp
include ntp

and i run this cmmand:

puppet apply site.pp

how puppet program parser these code in order?

because sometime i can't get the correct value of var_03 and var_04.  and 
they would all be nil.

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