Mercurial > hg > truffle
diff graal/com.oracle.truffle.api.dsl/src/com/oracle/truffle/api/dsl/NodeChild.java @ 10597:79041ab43660
Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 01 Jul 2013 20:58:32 +0200 |
parents | |
children | 494b818b527c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.dsl/src/com/oracle/truffle/api/dsl/NodeChild.java Mon Jul 01 20:58:32 2013 +0200 @@ -0,0 +1,51 @@ +/* + * 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.api.dsl; + +import java.lang.annotation.*; + +import com.oracle.truffle.api.nodes.*; + +/** + * A {@link NodeChild} element defines an executable child for the enclosing {@link Node}. A + * {@link Node} contains multiple {@link NodeChildren} specified in linear execution order. + */ +@Retention(RetentionPolicy.CLASS) +@Target({ElementType.TYPE}) +public @interface NodeChild { + + String value() default ""; + + Class<?> type() default Node.class; + + /** + * The {@link #executeWith()} property allows a node to pass the result of one child's + * executable as an input to another child's executable. These referenced children must be + * defined before the current node in the execution order. The current node {@link #type()} + * attribute must be set to a {@link Node} which supports the evaluated execution with the + * number of {@link #executeWith()} arguments that are defined. For example if this child is + * executed with one argument, the {@link #type()} attribute must define a node which publicly + * declares a method with the signature <code>Object execute*(VirtualFrame, Object)</code>. + */ + String[] executeWith() default {}; +}