Contents

require 'puppet/parser/ast/branch'

class Puppet::Parser::AST
  class BlockExpression < Branch
    include Enumerable

    # Evaluate contained expressions, produce result of the last
    def evaluate(scope)
      result = nil
      @children.each do |child|
        # Skip things that respond to :instantiate (classes, nodes,
        # and definitions), because they have already been
        # instantiated.
        if !child.respond_to?(:instantiate)
          result = child.safeevaluate(scope)
        end
      end
      result
    end

    # Return a child by index.
    def [](index)
      @children[index]
    end

    def push(*ary)
      ary.each { |child|
        #Puppet.debug "adding %s(%s) of type %s to %s" %
        #    [child, child.object_id, child.class.to_s.sub(/.+::/,''),
        #    self.object_id]
        @children.push(child)
      }

      self
    end

    def to_s
      "[" + @children.collect { |c| c.to_s }.join(', ') + "]"
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
puppet-3.2.2	lib/puppet/parser/ast/block_expression.rb
puppet-3.2.1	lib/puppet/parser/ast/block_expression.rb
puppet-3.2.1.rc1	lib/puppet/parser/ast/block_expression.rb
puppet-3.2.0.rc2	lib/puppet/parser/ast/block_expression.rb
puppet-3.2.0.rc1	lib/puppet/parser/ast/block_expression.rb