diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLScript.java @ 12752:71991b7a0f14

SL: Enhanced SimpleLanguage with support for if statements, function calls, function caching + inlining and builtins.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Nov 2013 21:34:44 +0100
parents
children 69d2e4baa215
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLScript.java	Mon Nov 11 21:34:44 2013 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2012, 2012, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.sl;
+
+import java.io.*;
+
+import javax.script.*;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.sl.parser.*;
+import com.oracle.truffle.sl.runtime.*;
+
+public final class SLScript {
+
+    private final SLContext context;
+    private final CallTarget main;
+
+    private SLScript(SLContext context, CallTarget mainFunction) {
+        this.context = context;
+        this.main = mainFunction;
+    }
+
+    public SLContext getContext() {
+        return context;
+    }
+
+    public CallTarget getMain() {
+        return main;
+    }
+
+    public Object run(Object... arguments) {
+        return main.call(null, new SLArguments(arguments));
+    }
+
+    @Override
+    public String toString() {
+        return main.toString();
+    }
+
+    public static SLScript create(SLContext context, String input) throws ScriptException {
+        return create(context, new ByteArrayInputStream(input.getBytes()));
+
+    }
+
+    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;
+            }
+        });
+        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);
+    }
+}