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Contents
require 'puppet'
require 'puppet/parser/ast/branch'
require 'puppet/parser/collector'
# An object that collects stored objects from the central cache and returns
# them to the current host, yo.
class Puppet::Parser::AST
class CollExpr < AST::Branch
attr_accessor :test1, :test2, :oper, :form, :type, :parens
# We return an object that does a late-binding evaluation.
def evaluate(scope)
# Make sure our contained expressions have all the info they need.
[@test1, @test2].each do |t|
if t.is_a?(self.class)
t.form ||= self.form
t.type ||= self.type
end
end
# The code is only used for virtual lookups
match1, code1 = @test1.safeevaluate scope
match2, code2 = @test2.safeevaluate scope
# First build up the virtual code.
# If we're a conjunction operator, then we're calling code. I did
# some speed comparisons, and it's at least twice as fast doing these
# case statements as doing an eval here.
code = proc do |resource|
case @oper
when "and"; code1.call(resource) and code2.call(resource)
when "or"; code1.call(resource) or code2.call(resource)
when "=="
if match1 == "tag"
resource.tagged?(match2)
else
if resource[match1].is_a?(Array)
resource[match1].include?(match2)
else
resource[match1] == match2
end
end
when "!="; resource[match1] != match2
end
end
match = [match1, @oper, match2]
return match, code
end
def initialize(hash = {})
super
raise ArgumentError, "Invalid operator #{@oper}" unless %w{== != and or}.include?(@oper)
end
end
end
Version data entries
81 entries across 81 versions & 4 rubygems