Method: Puppet::Parser::Scope#lookupvar

Defined in:
lib/puppet/parser/scope.rb

#lookupvar(name, options = {}) ⇒ Object

Lookup a variable within this scope using the Puppet language’s scoping rules. Variables can be qualified using just as in a manifest.

Parameters:

  • name (String) —

    the variable name to lookup

Returns:

  • Object the value of the variable, or nil if it’s not found



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# File 'lib/puppet/parser/scope.rb', line 400

def lookupvar(name, options = {})
  unless name.is_a? String
    raise Puppet::ParseError, "Scope variable name #{name.inspect} is a #{name.class}, not a string"
  end

  table = @ephemeral.last

  if name =~ /^(.*)::(.+)$/
    class_name = $1
    variable_name = $2
    lookup_qualified_variable(class_name, variable_name, options)

  # TODO: optimize with an assoc instead, this searches through scopes twice for a hit
  elsif table.include?(name)
    table[name]
  else
    next_scope = inherited_scope || enclosing_scope
    if next_scope
      next_scope.lookupvar(name, options)
    else
      variable_not_found(name)
    end
  end
end