class Puppet::Parser::AST::ComparisonOperator

Attributes

lval[RW]

operator[RW]

rval[RW]

Public Class Methods

new(hash) click to toggle source

Calls superclass method

# File lib/puppet/parser/ast/comparison_operator.rb, line 32
def initialize(hash)
  super

  raise ArgumentError, "Invalid comparison operator #{@operator}" unless %w{== != < > <= >=}.include?(@operator)
end

Public Instance Methods

each() { |child| ... } click to toggle source

Iterate across all of our children.

# File lib/puppet/parser/ast/comparison_operator.rb, line 10
def each
  [@lval,@rval,@operator].each { |child| yield child }
end

evaluate(scope) click to toggle source

Returns a boolean which is the result of the boolean operation of lval and rval operands

# File lib/puppet/parser/ast/comparison_operator.rb, line 16
def evaluate(scope)
  # evaluate the operands, should return a boolean value
  lval = @lval.safeevaluate(scope)

  case @operator
  when "==","!="
    @rval.evaluate_match(lval, scope) ? @operator == '==' : @operator == '!='
  else
    rval = @rval.safeevaluate(scope)
    rval = Puppet::Parser::Scope.number?(rval) || rval
    lval = Puppet::Parser::Scope.number?(lval) || lval

    lval.send(@operator,rval)
  end
end