class Puppet::Pops::Model::TreeDumper

Base class for formatted textual dump of a “model”

Attributes

indent_count[RW]

Public Class Methods

new(initial_indentation = 0) click to toggle source
  # File lib/puppet/pops/model/tree_dumper.rb
5 def initialize initial_indentation = 0
6   @@dump_visitor ||= Puppet::Pops::Visitor.new(nil,"dump",0,0)
7   @indent_count = initial_indentation
8 end

Public Instance Methods

do_dump(o) click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
14 def do_dump(o)
15   @@dump_visitor.visit_this_0(self, o)
16 end
dump(o) click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
10 def dump(o)
11   format(do_dump(o))
12 end
format(x) click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
22 def format(x)
23   result = ""
24   parts = format_r(x)
25   parts.each_index do |i|
26     if i > 0
27       # separate with space unless previous ends with whitespace or (
28       result << ' ' if parts[i] != ")" && parts[i-1] !~ /.*(?:\s+|\()$/ && parts[i] !~ /^\s+/
29     end
30     result << parts[i].to_s
31   end
32   result
33 end
format_r(x) click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
35 def format_r(x)
36   result = []
37   case x
38   when :break
39     result << "\n" + indent
40   when :indent
41     @indent_count += 1
42   when :dedent
43     @indent_count -= 1
44   when Array
45     result << '('
46     result += x.collect {|a| format_r(a) }.flatten
47     result << ')'
48   when Symbol
49     result << x.to_s # Allows Symbols in arrays e.g. ["text", =>, "text"]
50   else
51     result << x
52   end
53   result
54 end
indent() click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
18 def indent
19   "  " * indent_count
20 end
is_nop?(o) click to toggle source
   # File lib/puppet/pops/model/tree_dumper.rb
56 def is_nop? o
57   o.nil? || o.is_a?(Puppet::Pops::Model::Nop)
58 end