Patch #9142 (No mantis)

Add a config option to OpenSim.ini to select between script compilers
in the XEngine without recompile.
Set UseNewCompiler=true in OpenSim.ini and try it out.
Creates the ICodeConverter interface and adapts the new compiler to it.

4 files changed, 53 insertions, 12 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/CSCodeGenerator.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/CSCodeGenerator.cs
index 82c7eda..7d7384e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/CSCodeGenerator.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/CSCodeGenerator.cs
@@ -32,7 +32,7 @@ using Tools;
 
 namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
 {
-    public class CSCodeGenerator
+    public class CSCodeGenerator : ICodeConverter
     {
         private SYMBOL m_astRoot = null;
         private int m_braceCount;   // for indentation
@@ -41,12 +41,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
         /// Pass the new CodeGenerator a string containing the LSL source.
         /// </summary>
         /// <param name="script">String containing LSL source.</param>
-        public CSCodeGenerator(string script)
+        public CSCodeGenerator()
         {
-            Parser p = new LSLSyntax(new yyLSLSyntax(), new ErrorHandler(true));
-            // Obviously this needs to be in a try/except block.
-            LSL2CSCodeTransformer codeTransformer = new LSL2CSCodeTransformer(p.Parse(script));
-            m_astRoot = codeTransformer.Transform();
         }
 
         /// <summary>
@@ -63,8 +59,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
         /// Generate the code from the AST we have.
         /// </summary>
         /// <returns>String containing the generated C# code.</returns>
-        public string Generate()
+        public string Convert(string script)
         {
+            Parser p = new LSLSyntax(new yyLSLSyntax(), new ErrorHandler(true));
+            // Obviously this needs to be in a try/except block.
+            LSL2CSCodeTransformer codeTransformer = new LSL2CSCodeTransformer(p.Parse(script));
+            m_astRoot = codeTransformer.Transform();
             string retstr = String.Empty;
 
             // standard preamble
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
index 124f1e6..09d816f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
@@ -72,8 +72,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
         private string FilePrefix;
         private string ScriptEnginesPath = "ScriptEngines";
 
-        private static LSL2CSConverter LSL_Converter = new LSL2CSConverter();
-        //private static CSCodeGenerator LSL_Converter;
+        private static ICodeConverter LSL_Converter;
         private static CSharpCodeProvider CScodeProvider = new CSharpCodeProvider();
         private static VBCodeProvider VBcodeProvider = new VBCodeProvider();
         private static JScriptCodeProvider JScodeProvider = new JScriptCodeProvider();
@@ -82,6 +81,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
 
         // private static int instanceID = new Random().Next(0, int.MaxValue);                 // Unique number to use on our compiled files
         private static UInt64 scriptCompileCounter = 0;                                     // And a counter
+        private bool m_UseCompiler = false;
 
         public IScriptEngine m_scriptEngine;
         public Compiler(IScriptEngine scriptEngine)
@@ -94,6 +94,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
         {
 
             // Get some config
+            m_UseCompiler = m_scriptEngine.Config.GetBoolean("UseNewCompiler", true);
             WriteScriptSourceToDebugFile = m_scriptEngine.Config.GetBoolean("WriteScriptSourceToDebugFile", true);
             CompileWithDebugInformation = m_scriptEngine.Config.GetBoolean("CompileWithDebugInformation", true);
 
@@ -324,9 +325,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
             if (l == enumCompileType.lsl)
             {
                 // Its LSL, convert it to C#
+                //compileScript = LSL_Converter.Convert(Script);
+                if(m_UseCompiler)
+                    LSL_Converter = (ICodeConverter)new CSCodeGenerator();
+                else
+                    LSL_Converter = (ICodeConverter)new LSL2CSConverter();
                 compileScript = LSL_Converter.Convert(Script);
-                //LSL_Converter = new CSCodeGenerator(Script);
-                //compileScript = LSL_Converter.Generate();
                 l = enumCompileType.cs;
             }
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/ICodeConverter.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/ICodeConverter.cs
new file mode 100644
index 0000000..a57530c
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/ICodeConverter.cs
@@ -0,0 +1,37 @@
+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+using System;
+
+namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
+{
+        public interface ICodeConverter
+        {
+                string Convert(string script);
+        }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSL2CSConverter.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSL2CSConverter.cs
index 380686e..7e9789f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSL2CSConverter.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSL2CSConverter.cs
@@ -32,7 +32,7 @@ using System.Text.RegularExpressions;
 
 namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
 {
-    public class LSL2CSConverter
+    public class LSL2CSConverter : ICodeConverter
     {
         // Uses regex to convert LSL code to C# code.