From acef972a5557839ab84377b73324db4ef003e3ed Mon Sep 17 00:00:00 2001
From: triton <joao@tritao.eu>
Date: Tue, 6 May 2014 16:56:57 +0100
Subject: [PATCH] Added support for a "dry run" option that does not write
 anything to disk.

---
 src/Generator/Driver.cs  |  4 +++-
 src/Generator/Options.cs | 10 +++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/Generator/Driver.cs b/src/Generator/Driver.cs
index 0dca66ab..531432e1 100644
--- a/src/Generator/Driver.cs
+++ b/src/Generator/Driver.cs
@@ -470,7 +470,9 @@ namespace CppSharp
                 }
             }
 
-            driver.WriteCode(outputs);
+            if (!driver.Options.DryRun)
+                driver.WriteCode(outputs);
+
             if (driver.Options.IsCSharpGenerator)
                 driver.CompileCode();
         }
diff --git a/src/Generator/Options.cs b/src/Generator/Options.cs
index 68dda98d..deec8d7d 100644
--- a/src/Generator/Options.cs
+++ b/src/Generator/Options.cs
@@ -54,7 +54,15 @@ namespace CppSharp
         // General options
         public bool Quiet;
         public bool ShowHelpText;
-        public bool OutputDebug;
+        public bool OutputDebug;
+
+        /// <summary>
+        /// Set to true to simulate generating without actually writing
+        /// any output to disk. This can be useful to activate while
+        /// debugging the parser generator so generator bugs do not get
+        /// in the way while iterating.
+        /// </summary>
+        public bool DryRun;
 
         // Parser options
         public List<string> Headers;