class Puppet::Parser::AST::PopsBridge::Expression

Bridges to one Pops Model Expression The @value is the expression This is used to represent the body of a class, definition, or node, and for each parameter’s default value expression.

Public Instance Methods

children() click to toggle source

The 3x requires code plugged in to an AST to have this in certain positions in the tree. The purpose is to either print the content, or to look for things that needs to be defined. This implementation cheats by always returning an empty array. (This allows simple files to not require a “Program” at the top.

# File lib/puppet/parser/ast/pops_bridge.rb, line 59
def children
  []
end

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

Adapts to 3x where top level constructs needs to have each to iterate over children. Short circuit this by yielding self. By adding this there is no need to wrap a pops expression inside an AST::BlockExpression

# File lib/puppet/parser/ast/pops_bridge.rb, line 39
def each
  yield self
end

evaluate(scope) click to toggle source

# File lib/puppet/parser/ast/pops_bridge.rb, line 31
def evaluate(scope)
  object = @@evaluator.evaluate(scope, @value)
  @@evaluator.convert_to_3x(object, scope)
end

sequence_with(other) click to toggle source

# File lib/puppet/parser/ast/pops_bridge.rb, line 43
def sequence_with(other)
  if value.nil?
    # This happens when testing and not having a complete setup
    other
  else
    # When does this happen ? Ever ?
    raise "sequence_with called on Puppet::Parser::AST::PopsBridge::Expression - please report use case"
    # What should be done if the above happens (We don't want this to happen).
    # Puppet::Parser::AST::BlockExpression.new(:children => [self] + other.children)
  end
end

source_text() click to toggle source

# File lib/puppet/parser/ast/pops_bridge.rb, line 26
def source_text
  source_adapter = Puppet::Pops::Utils.find_closest_positioned(@value)
  source_adapter ? source_adapter.extract_text() : nil
end

to_s() click to toggle source

# File lib/puppet/parser/ast/pops_bridge.rb, line 22
def to_s
  Puppet::Pops::Model::ModelTreeDumper.new.dump(@value)
end

Public Class Methods

new(args) click to toggle source

# File lib/puppet/parser/ast/pops_bridge.rb, line 17
def initialize args
  super
  @@evaluator ||= Puppet::Pops::Parser::EvaluatingParser.new()
end