Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLStatementNode.java @ 20804:7848fc12602b
Merge with jdk8u40-b25
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Tue, 07 Apr 2015 14:58:49 +0200 |
parents | 3844fb65016c |
children |
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/* * Copyright (c) 2012, 2015, 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 java.io.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.api.source.*; import com.oracle.truffle.sl.nodes.instrument.*; /** * The base class of all Truffle nodes for SL. All nodes (even expressions) can be used as * statements, i.e., without returning a value. The {@link VirtualFrame} provides access to the * local variables. */ @NodeInfo(language = "Simple Language", description = "The abstract base node for all statements") public abstract class SLStatementNode extends Node { public SLStatementNode(SourceSection src) { super(src); } /** * Execute this node as as statement, where no return value is necessary. */ public abstract void executeVoid(VirtualFrame frame); public SLStatementNode getNonWrapperNode() { return this; } @Override public String toString() { return formatSourceSection(this); } /** * Formats a source section of a node in human readable form. If no source section could be * found it looks up the parent hierarchy until it finds a source section. Nodes where this was * required append a <code>'~'</code> at the end. * * @param node the node to format. * @return a formatted source section string */ public static String formatSourceSection(Node node) { if (node == null) { return "<unknown>"; } SourceSection section = node.getSourceSection(); boolean estimated = false; if (section == null) { section = node.getEncapsulatingSourceSection(); estimated = true; } if (section == null || section.getSource() == null) { return "<unknown source>"; } else { String sourceName = new File(section.getSource().getName()).getName(); int startLine = section.getStartLine(); return String.format("%s:%d%s", sourceName, startLine, estimated ? "~" : ""); } } @Override public boolean isInstrumentable() { return true; } @Override public WrapperNode createWrapperNode() { return new SLStatementWrapperNode(this); } }