From 072bdda1907c056f78f9252d3c8374cffc965e1f Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Thu, 24 Dec 2015 01:41:51 +0900
Subject: [PATCH] Optimize string interpolation recursively

---
 CHANGELOG.md                     | 1 +
 lib/hamlit/string_splitter.rb    | 2 +-
 test/hamlit/optimization_test.rb | 5 +++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index baf3a5b6..f64d0cea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ project adheres to [Semantic Versioning](http://semver.org/). This change log is
 ### Added
 
 - Optimize inline script inside a tag
+- Optimize string interpolation recursively
 
 ## [2.1.2](https://github.com/k0kubun/hamlit/compare/v2.1.1...v2.1.2) - 2015-12-16
 
diff --git a/lib/hamlit/string_splitter.rb b/lib/hamlit/string_splitter.rb
index d9171083..36b6e1b1 100644
--- a/lib/hamlit/string_splitter.rb
+++ b/lib/hamlit/string_splitter.rb
@@ -79,7 +79,7 @@ module Hamlit
         when :static
           temple << [:static, content]
         when :dynamic
-          temple << [:dynamic, content]
+          temple << on_dynamic(content)
         end
       end
       temple
diff --git a/test/hamlit/optimization_test.rb b/test/hamlit/optimization_test.rb
index 441a7ee6..5df6e9b6 100644
--- a/test/hamlit/optimization_test.rb
+++ b/test/hamlit/optimization_test.rb
@@ -31,5 +31,10 @@ describe 'optimization' do
       haml = %q|%span= "jruby#{9000}#{dynamic}"|
       assert_equal true, compiled_code(haml).include?(%|<span>jruby9000|)
     end
+
+    it 'detects a static part recursively' do
+      haml = %q|%input{ value: "#{ "hello#{ hello }" }" }|
+      assert_equal true, compiled_code(haml).include?(%|value='hello|)
+    end
   end
 end