--- a/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLScript.java	Wed Jan 22 21:34:00 2014 -0800
+++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLScript.java	Mon Feb 03 20:58:23 2014 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -22,6 +22,8 @@
  */
 package com.oracle.truffle.sl;
 
+import java.io.*;
+
 import javax.script.*;
 
 import com.oracle.truffle.api.*;
@@ -71,4 +73,77 @@
         }
         return new SLScript(context, main);
     }
+
+    public static SLScript create(SLContext context, InputStream input) throws ScriptException {
+        SLNodeFactory factory = new SLNodeFactory(context);
+        Parser parser = new Parser(new Scanner(input), factory);
+        factory.setParser(parser);
+        factory.setSource(new Source() {
+            public String getName() {
+                return "Unknown";
+            }
+
+            public String getCode() {
+                return null;
+            }
+
+            @Override
+            public String getPath() {
+                // TODO Auto-generated method stub
+                return null;
+            }
+
+            @Override
+            public Reader getReader() {
+                // TODO Auto-generated method stub
+                return null;
+            }
+
+            @Override
+            public InputStream getInputStream() {
+                // TODO Auto-generated method stub
+                return null;
+            }
+
+            @Override
+            public String getCode(int lineNumber) {
+                // TODO Auto-generated method stub
+                return null;
+            }
+
+            @Override
+            public int getLineCount() {
+                // TODO Auto-generated method stub
+                return 0;
+            }
+
+            @Override
+            public int getLineNumber(int offset) {
+                // TODO Auto-generated method stub
+                return 0;
+            }
+
+            @Override
+            public int getLineStartOffset(int lineNumber) {
+                // TODO Auto-generated method stub
+                return 0;
+            }
+
+            @Override
+            public int getLineLength(int lineNumber) {
+                // TODO Auto-generated method stub
+                return 0;
+            }
+        });
+        String error = parser.ParseErrors();
+        if (!error.isEmpty()) {
+            throw new ScriptException(String.format("Error(s) parsing script: %s", error));
+        }
+
+        CallTarget main = context.getFunctionRegistry().lookup("main");
+        if (main == null) {
+            throw new ScriptException("No main function found.");
+        }
+        return new SLScript(context, main);
+    }
 }