Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/FunctionDefinitionNode.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/nodes/FunctionDefinitionNode.java Fri Dec 21 10:45:37 2012 -0800 @@ -0,0 +1,67 @@ +/* + * 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.nodes; + +import com.oracle.truffle.api.frame.*; +import com.oracle.truffle.api.nodes.*; +import com.oracle.truffle.sl.types.*; + +public class FunctionDefinitionNode extends RootNode { + + private final FrameDescriptor frameDescriptor; + private final String name; + @Child + private StatementNode body; + @Child + private TypedNode returnValue; + + public FunctionDefinitionNode(StatementNode body, FrameDescriptor frameDescriptor, String name, TypedNode returnValue) { + this.body = adoptChild(body); + this.frameDescriptor = frameDescriptor; + this.name = name; + this.returnValue = adoptChild(returnValue); + } + + @Override + public Object execute(VirtualFrame frame) { + try { + body.executeVoid(frame); + } catch (ReturnException ex) { + // Nothing to do, we just need to return. + } + if (returnValue != null) { + return returnValue.executeGeneric(frame); + } else { + return null; + } + } + + public FrameDescriptor getFrameDescriptor() { + return frameDescriptor; + } + + @Override + public String toString() { + return "Function " + name + "@" + Integer.toHexString(hashCode()); + } +}