Mercurial > hg > graal-jvmci-8
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> |
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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); + } +}