diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SimpleLanguage.java @ 7292:213c1297a814

Simple Language: A simple dynamic programming language to demonstrate Truffle features
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 21 Dec 2012 10:45:37 -0800
parents
children 31da1716950f
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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/SimpleLanguage.java	Fri Dec 21 10:45:37 2012 -0800
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+/*
+ * 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 com.oracle.truffle.api.*;
+import com.oracle.truffle.sl.nodes.*;
+import com.oracle.truffle.sl.parser.*;
+import com.oracle.truffle.sl.tools.*;
+
+public class SimpleLanguage {
+
+    public static void main(String[] args) throws IOException {
+        run(new FileInputStream(args[0]), System.out, 10, true);
+    }
+
+    public static void run(InputStream input, PrintStream printOutput, int repeats, boolean log) {
+        System.out.printf("== running on %s\n", Truffle.getRuntime().getName());
+
+        NodeFactory factory = new NodeFactory(printOutput);
+
+        Parser parser = new Parser(new Scanner(input), factory);
+        parser.Parse();
+
+        FunctionDefinitionNode rootNode = factory.findFunction("main");
+        if (log) {
+            GraphPrinter.print(rootNode);
+        }
+
+        try {
+            CallTarget function = Truffle.getRuntime().createCallTarget(rootNode, rootNode.getFrameDescriptor());
+            for (int i = 0; i < repeats; i++) {
+                Arguments arguments = new SLArguments(new Object[0]);
+
+                long start = System.nanoTime();
+                Object result = function.call(null, arguments);
+                long end = System.nanoTime();
+
+                if (result != null) {
+                    printOutput.println(result);
+                }
+                if (log) {
+                    System.out.printf("== iteration %d: %.3f ms\n", (i + 1), (end - start) / 1000000.0);
+                }
+            }
+
+        } finally {
+            if (log) {
+                GraphPrinter.print(rootNode);
+            }
+        }
+    }
+}