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Compiler Implementation for Matchers
Co-authored-by: Jan Lahoda <[email protected]> Co-authored-by: Angelos Bimpoudis <[email protected]>
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src/java.base/share/classes/jdk/internal/classfile/attribute/MatcherAttribute.java
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| /* | ||
| * Copyright (c) 2022, 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. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package jdk.internal.classfile.attribute; | ||
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| import jdk.internal.classfile.AccessFlags; | ||
| import jdk.internal.classfile.Attribute; | ||
| import jdk.internal.classfile.AttributedElement; | ||
| import jdk.internal.classfile.MethodElement; | ||
| import jdk.internal.classfile.constantpool.IntegerEntry; | ||
| import jdk.internal.classfile.constantpool.Utf8Entry; | ||
| import jdk.internal.classfile.impl.BoundAttribute; | ||
| import jdk.internal.classfile.impl.TemporaryConstantPool; | ||
| import jdk.internal.classfile.impl.UnboundAttribute; | ||
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| import java.lang.constant.MethodTypeDesc; | ||
| import java.lang.reflect.AccessFlag; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
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|
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| /** | ||
| * Models the {@code Matcher} attribute {@jvms X.X.XX}, which can | ||
| * appear on matchers, and records additional information about the | ||
| * nature of this matcher represented as a method. | ||
| * | ||
| * TODO | ||
| * Delivered as a {@link MethodElement} when | ||
| * traversing the elements of a {@link jdk.internal.classfile.MethodModel}. | ||
| */ | ||
| public sealed interface MatcherAttribute | ||
| extends Attribute<MatcherAttribute>, MethodElement, AttributedElement | ||
| permits BoundAttribute.BoundMatcherAttribute, | ||
| UnboundAttribute.UnboundMatcherAttribute { | ||
|
|
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| /** | ||
| * {@return the the module flags of the module, as a bit mask} | ||
| */ | ||
| int matcherFlagsMask(); | ||
|
|
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| /** | ||
| * {@return the the module flags of the module, as a set of enum constants} | ||
| */ | ||
| default Set<AccessFlag> matcherFlags() { | ||
| return AccessFlag.maskToAccessFlags(matcherFlagsMask(), AccessFlag.Location.MATCHER); | ||
| } | ||
|
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| /** {@return the name of this method} */ | ||
| Utf8Entry matcherName(); | ||
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| /** {@return the method descriptor of this method} */ | ||
| Utf8Entry matcherMethodType(); | ||
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| /** {@return the method descriptor of this method, as a symbolic descriptor} */ | ||
| default MethodTypeDesc matcherTypeSymbol() { | ||
| return MethodTypeDesc.ofDescriptor(matcherMethodType().stringValue()); | ||
| } | ||
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| static MatcherAttribute of(String matcherName, | ||
| int matcherFlags, | ||
| MethodTypeDesc matcherDescriptor, | ||
| List<Attribute<?>> matcherAttributes) { | ||
| return new UnboundAttribute.UnboundMatcherAttribute( | ||
| TemporaryConstantPool.INSTANCE.utf8Entry(matcherName), | ||
| matcherFlags, | ||
| TemporaryConstantPool.INSTANCE.utf8Entry(matcherDescriptor.descriptorString()), | ||
| matcherAttributes); | ||
| } | ||
|
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| static MatcherAttribute of(Utf8Entry matcherName, | ||
| int matcherFlags, | ||
| Utf8Entry matcherDescriptor, | ||
| List<Attribute<?>> matcherAttributes) { | ||
| return new UnboundAttribute.UnboundMatcherAttribute(matcherName, matcherFlags, matcherDescriptor, matcherAttributes); | ||
| } | ||
| } |
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