From f10b7aa065d5639357c072042148c4c95d60de06 Mon Sep 17 00:00:00 2001
From: Yorick Peterse <yorickpeterse@gmail.com>
Date: Mon, 22 Jun 2015 23:49:09 +0200
Subject: [PATCH] Super basic boilerplate for the XPath compiler

---
 lib/oga.rb                |  1 +
 lib/oga/xpath/compiler.rb | 14 ++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 lib/oga/xpath/compiler.rb

diff --git a/lib/oga.rb b/lib/oga.rb
index ff53482..9553712 100644
--- a/lib/oga.rb
+++ b/lib/oga.rb
@@ -52,6 +52,7 @@ require 'oga/html/entities'
 require 'oga/xpath/lexer'
 require 'oga/xpath/parser'
 require 'oga/xpath/evaluator'
+require 'oga/xpath/compiler'
 
 require 'oga/css/lexer'
 require 'oga/css/parser'
diff --git a/lib/oga/xpath/compiler.rb b/lib/oga/xpath/compiler.rb
new file mode 100644
index 0000000..507381a
--- /dev/null
+++ b/lib/oga/xpath/compiler.rb
@@ -0,0 +1,14 @@
+module Oga
+  module XPath
+    ##
+    # Compiling of XPath ASTs into Ruby source code.
+    #
+    # The Compiler class can be used to turn an XPath AST into Ruby source code
+    # that can be executed to match XML nodes in a given input document/element.
+    # Compiled source code is cached per expression, removing the need for
+    # recompiling the same expression over and over again.
+    #
+    class Compiler
+    end # Compiler
+  end # XPath
+end # Oga