Refactor Ripper-based optimization pipeline

by relying on Temple 0.8.2+ https://github.com/judofyr/temple/pull/127

hamlit.gemspec

@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
     spec.required_ruby_version = '>= 2.1.0'
   end
 
-  spec.add_dependency 'temple', '>= 0.8.0'
+  spec.add_dependency 'temple', '>= 0.8.2'
   spec.add_dependency 'thor'
   spec.add_dependency 'tilt'
 

lib/hamlit/engine.rb

@@ -25,10 +25,8 @@ module Hamlit
     use Parser
     use Compiler
     use HTML
-    if Ripper.respond_to?(:lex) # No Ripper.lex in truffleruby
-      use StringSplitter
-      filter :StaticAnalyzer
-    end
+    use StringSplitter
+    filter :StaticAnalyzer
     use Escapable
     use ForceEscapable
     filter :ControlFlow