Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/utilities/CPPExpressions.java @ 17467:55fb97c4c58d hs25-b65
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
author | mikael |
---|---|
date | Tue, 24 Dec 2013 11:48:39 -0800 |
parents | c18cbe5936b8 |
children |
line wrap: on
line source
/* * Copyright (c) 2004, 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 sun.jvm.hotspot.utilities; import java.util.regex.*; /** Provides helper routines for parsing simple C++ expressions such as "(JavaThread *) 0xf00" and "Universe::_collectedHeap". */ public class CPPExpressions { private static Pattern castPattern; /** Represents a cast expression such as "(JavaThread *) 0xf00". Returns both the type to which we are casting as well as the address. */ public static class CastExpr { private String type; private String address; private CastExpr(String type, String address) { this.type = type; this.address = address; } public String getType() { return type; } public String getAddress() { return address; } } /** Represents a static field expression such as "Universe::_collectedHeap". */ public static class StaticFieldExpr { private String containingType; private String fieldName; private StaticFieldExpr(String containingType, String fieldName) { this.containingType = containingType; this.fieldName = fieldName; } public String getContainingType() { return containingType; } public String getFieldName() { return fieldName; } } /** Attempts to parse the given string into a CastExpr. Returns null if the string did not match the supported pattern. */ public static CastExpr parseCast(String expr) { if (castPattern == null) { castPattern = Pattern.compile("\\s*\\(\\s*([0-9A-Za-z:_]*)\\s*\\*\\s*\\)\\s*([0-9a-zA-Z]*)\\s*"); } Matcher matcher = castPattern.matcher(expr); if (matcher.matches()) { String type = matcher.group(1); String addr = matcher.group(2); return new CastExpr(type, addr); } return null; } /** Attempts to parse the given string into a StaticFieldExpr. Returns null if the string did not match the supported pattern. */ public static StaticFieldExpr parseStaticField(String expr) { String sep = "::"; int idx = expr.lastIndexOf(sep); if (idx < 0) { return null; } String containingType = expr.substring(0, idx); String fieldName = expr.substring(idx + sep.length(), expr.length()); return new StaticFieldExpr(containingType, fieldName); } }