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@@ -45,6 +45,7 @@ spec = Gem::Specification.new do |s|
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     s.extra_rdoc_files  = [ 'README.txt' ]
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     [ 'builder',
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+      'ruby_parser',
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       'rufus-lru', 
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       'rufus-scheduler', 
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       'rufus-dollar',

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@@ -39,6 +39,7 @@
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 require 'rufus/eval' # gem 'rufus-eval'
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+require 'openwfe/util/treechecker'
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 require 'openwfe/utils'
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 require 'openwfe/expressions/raw'
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@@ -223,7 +224,7 @@ module OpenWFE
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         #
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         def self.eval_ruby_process_definition (code, safety_level=2)
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-            # TODO : insert tree check
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+            TreeChecker.check code
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             #puts "\nin:\n#{code}\n"
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@@ -122,7 +122,7 @@ module OpenWFE
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             # (of course you can override this method).
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             #
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             def encode_workitem (wi)
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-                YAML.dump(wi)
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+                YAML.dump wi
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             end
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     end
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