Mercurial > hg > graal-jvmci-8
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> |
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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 @@ -0,0 +1,74 @@ +/* + * 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); + } + } + } +}