lib/express_templates/template/handler.rb in express_templates-0.9.3 vs lib/express_templates/template/handler.rb in express_templates-0.9.4

@@ -1,15 +1,31 @@
+require 'ripper'
+
 module ExpressTemplates
   module Template
     class Handler
       def self.call(template)
         new.call(template)
       end
 
       def call(template)
+        # call ripper stuff method
+
+        warn_contains_logic("(#{ExpressTemplates.compile(template)}).html_safe")  # pass the source code
         # returns a string to be eval'd
         "(#{ExpressTemplates.compile(template)}).html_safe"
       end
 
+      def warn_contains_logic(compiled_template)
+        keywords = %w(if until unless case for do loop while)                                                                 # array of conditional keywords
+        tokens = []
+        if Ripper.lex(compiled_template).select do |element|                                                                  # since it outputs an array [[line, col], type, token]
+          element[1]==:on_kw                                                                                                  # type must match ':on_kw' type (type is keyword)
+        end.each { |match| tokens.push(match) if keywords.include? match[2] }                                                 # check if token is in given /keyword/ array, then push to new array match
+          tokens.each do |first|
+            warn "PAGE TEMPLATE INCLUDES #{first[2]} STATEMENT AT LINE #{first[0][0]}: #{first}\n#{compiled_template}"        # warn on first occurence of conditional logic
+          end
+        end
+      end
     end
   end
-end
\ No newline at end of file
+end