Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CallTarget.java @ 7274:19f5c9b96fa7
Merge.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 18 Dec 2012 17:59:32 +0100 |
parents | a4b84ba6dc2e |
children | 5e3d1a68664e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CallTarget.java Tue Dec 18 17:59:32 2012 +0100 @@ -0,0 +1,66 @@ +/* + * Copyright (c) 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.api; + +import com.oracle.truffle.api.frame.*; + +/** + * Represents the target of a call. Instances of this interface can be created using the + * {@link TruffleRuntime#createCallTarget(com.oracle.truffle.api.nodes.RootNode, FrameDescriptor)} method. + */ +public abstract class CallTarget { + + /** + * Calls this target as a root method and without arguments. + * @return the return result of the call + */ + public final Object call() { + return call(null, Arguments.EMPTY_ARGUMENTS); + } + + /** + * Calls this target with a caller frame and no arguments. + * @param caller the caller frame + * @return the return result of the call + */ + public final Object call(PackedFrame caller) { + return call(caller, Arguments.EMPTY_ARGUMENTS); + } + + /** + * Calls this target as a root method passing arguments. + * @param arguments the arguments that should be passed to the callee + * @return the return result of the call + */ + public final Object call(Arguments arguments) { + return call(null, arguments); + } + + /** + * Calls this target passing a caller frame and arguments. + * @param caller the caller frame + * @param arguments the arguments that should be passed to the callee + * @return the return result of the call + */ + public abstract Object call(PackedFrame caller, Arguments arguments); +}