Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/utilities/ConstantTag.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 | f16e75e0cf11 |
children |
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/* * Copyright (c) 2001, 2013, 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 sun.jvm.hotspot.runtime.BasicType; public class ConstantTag { // These replicated from the VM to save space private static final int JVM_CONSTANT_Utf8 = 1; private static final int JVM_CONSTANT_Unicode = 2; // unused private static final int JVM_CONSTANT_Integer = 3; private static final int JVM_CONSTANT_Float = 4; private static final int JVM_CONSTANT_Long = 5; private static final int JVM_CONSTANT_Double = 6; private static final int JVM_CONSTANT_Class = 7; private static final int JVM_CONSTANT_String = 8; private static final int JVM_CONSTANT_Fieldref = 9; private static final int JVM_CONSTANT_Methodref = 10; private static final int JVM_CONSTANT_InterfaceMethodref = 11; private static final int JVM_CONSTANT_NameAndType = 12; private static final int JVM_CONSTANT_MethodHandle = 15; // JSR 292 private static final int JVM_CONSTANT_MethodType = 16; // JSR 292 // static final int JVM_CONSTANT_(unused) = 17; // JSR 292 early drafts only private static final int JVM_CONSTANT_InvokeDynamic = 18; // JSR 292 private static final int JVM_CONSTANT_Invalid = 0; // For bad value initialization private static final int JVM_CONSTANT_UnresolvedClass = 100; // Temporary tag until actual use private static final int JVM_CONSTANT_ClassIndex = 101; // Temporary tag while constructing constant pool private static final int JVM_CONSTANT_StringIndex = 102; // Temporary tag while constructing constant pool private static final int JVM_CONSTANT_UnresolvedClassInError = 103; // Resolution failed private static final int JVM_CONSTANT_MethodHandleInError = 104; // Error tag due to resolution error private static final int JVM_CONSTANT_MethodTypeInError = 105; // Error tag due to resolution error // JVM_CONSTANT_MethodHandle subtypes //FIXME: connect these to data structure private static int JVM_REF_getField = 1; private static int JVM_REF_getStatic = 2; private static int JVM_REF_putField = 3; private static int JVM_REF_putStatic = 4; private static int JVM_REF_invokeVirtual = 5; private static int JVM_REF_invokeStatic = 6; private static int JVM_REF_invokeSpecial = 7; private static int JVM_REF_newInvokeSpecial = 8; private static int JVM_REF_invokeInterface = 9; private byte tag; public ConstantTag(byte tag) { this.tag = tag; } public int value() { return tag; } public boolean isKlass() { return tag == JVM_CONSTANT_Class; } public boolean isField () { return tag == JVM_CONSTANT_Fieldref; } public boolean isMethod() { return tag == JVM_CONSTANT_Methodref; } public boolean isInterfaceMethod() { return tag == JVM_CONSTANT_InterfaceMethodref; } public boolean isString() { return tag == JVM_CONSTANT_String; } public boolean isInt() { return tag == JVM_CONSTANT_Integer; } public boolean isFloat() { return tag == JVM_CONSTANT_Float; } public boolean isLong() { return tag == JVM_CONSTANT_Long; } public boolean isDouble() { return tag == JVM_CONSTANT_Double; } public boolean isNameAndType() { return tag == JVM_CONSTANT_NameAndType; } public boolean isUtf8() { return tag == JVM_CONSTANT_Utf8; } public boolean isMethodHandle() { return tag == JVM_CONSTANT_MethodHandle; } public boolean isMethodType() { return tag == JVM_CONSTANT_MethodType; } public boolean isInvokeDynamic() { return tag == JVM_CONSTANT_InvokeDynamic; } public boolean isInvalid() { return tag == JVM_CONSTANT_Invalid; } public boolean isUnresolvedKlass() { return tag == JVM_CONSTANT_UnresolvedClass || tag == JVM_CONSTANT_UnresolvedClassInError; } public boolean isUnresolveKlassInError() { return tag == JVM_CONSTANT_UnresolvedClassInError; } public boolean isKlassIndex() { return tag == JVM_CONSTANT_ClassIndex; } public boolean isStringIndex() { return tag == JVM_CONSTANT_StringIndex; } public boolean isKlassReference() { return isKlassIndex() || isUnresolvedKlass(); } public boolean isFieldOrMethod() { return isField() || isMethod() || isInterfaceMethod(); } public boolean isSymbol() { return isUtf8(); } public BasicType basicType() { switch (tag) { case JVM_CONSTANT_Integer : return BasicType.T_INT; case JVM_CONSTANT_Float : return BasicType.T_FLOAT; case JVM_CONSTANT_Long : return BasicType.T_LONG; case JVM_CONSTANT_Double : return BasicType.T_DOUBLE; case JVM_CONSTANT_Class : case JVM_CONSTANT_String : case JVM_CONSTANT_UnresolvedClass : case JVM_CONSTANT_UnresolvedClassInError : case JVM_CONSTANT_MethodHandleInError : case JVM_CONSTANT_MethodTypeInError : case JVM_CONSTANT_ClassIndex : case JVM_CONSTANT_StringIndex : case JVM_CONSTANT_MethodHandle : case JVM_CONSTANT_MethodType : return BasicType.T_OBJECT; default: throw new InternalError("unexpected tag: " + tag); } } public String toString() { return "ConstantTag:" + Integer.toString(tag); } }