Mercurial > hg > truffle
diff graal/com.oracle.max.cri/src/com/sun/cri/ci/CiExceptionHandler.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.cri/src/com/sun/cri/ci/CiExceptionHandler.java Sat Dec 17 19:59:18 2011 +0100 @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2009, 2011, 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.sun.cri.ci; + +import com.sun.cri.ri.*; + +/** + * An implementation of the {@link RiExceptionHandler} interface. + */ +public class CiExceptionHandler implements RiExceptionHandler { + + public static final CiExceptionHandler[] NONE = {}; + + public final int startBCI; + public final int endBCI; + public final int handlerBCI; + public final int catchTypeCPI; + public final RiType catchType; + + /** + * Creates a new exception handler with the specified ranges. + * @param startBCI the start index of the protected range + * @param endBCI the end index of the protected range + * @param catchBCI the index of the handler + * @param catchTypeCPI the index of the throwable class in the constant pool + * @param catchType the type caught by this exception handler + */ + public CiExceptionHandler(int startBCI, int endBCI, int catchBCI, int catchTypeCPI, RiType catchType) { + this.startBCI = startBCI; + this.endBCI = endBCI; + this.handlerBCI = catchBCI; + this.catchTypeCPI = catchTypeCPI; + this.catchType = catchType; + } + + public int startBCI() { + return startBCI; + } + + public int endBCI() { + return endBCI; + } + + public int handlerBCI() { + return handlerBCI; + } + + public int catchTypeCPI() { + return catchTypeCPI; + } + + public boolean isCatchAll() { + return catchTypeCPI == 0; + } + + public RiType catchType() { + return catchType; + } + + @Override + public String toString() { + return new StringBuilder(20). + append('['). + append(startBCI). + append(" - "). + append(endBCI). + append(") -> "). + append(handlerBCI). + append(" type="). + append(catchType == null ? "*any*" : catchType.name()). + toString(); + } +}