| /* |
| * Copyright (c) 2016, 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 jdk.vm.ci.hotspot; |
| |
| import jdk.vm.ci.meta.Signature; |
| |
| /** |
| * Describes a method for which the VM has an intrinsic implementation. |
| */ |
| public final class VMIntrinsicMethod { |
| |
| /** |
| * The name of the class declaring the intrinsified method. The name is in |
| * <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.2.1">class |
| * file format</a> (e.g., {@code "java/lang/Thread"} instead of {@code "java.lang.Thread"}). |
| */ |
| public final String declaringClass; |
| |
| /** |
| * The name of the intrinsified method. This is not guaranteed to be a legal method name (e.g., |
| * there is a HotSpot intrinsic with the name {@code "<compiledLambdaForm>"}). |
| */ |
| public final String name; |
| |
| /** |
| * The {@link Signature#toMethodDescriptor() descriptor} of the intrinsified method. This is not |
| * guaranteed to be a legal method descriptor (e.g., intrinsics for signature polymorphic |
| * methods have a descriptor of {@code "*"}). |
| */ |
| public final String descriptor; |
| |
| /** |
| * The unique VM identifier for the intrinsic. |
| */ |
| public final int id; |
| |
| VMIntrinsicMethod(String declaringClass, String name, String descriptor, int id) { |
| this.declaringClass = declaringClass; |
| this.name = name; |
| this.descriptor = descriptor; |
| this.id = id; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof VMIntrinsicMethod) { |
| VMIntrinsicMethod that = (VMIntrinsicMethod) obj; |
| if (that.id == this.id) { |
| assert that.name.equals(this.name) && |
| that.declaringClass.equals(this.declaringClass) && |
| that.descriptor.equals(this.descriptor); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return id; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("IntrinsicMethod[declaringClass=%s, name=%s, descriptor=%s, id=%d]", declaringClass, name, descriptor, id); |
| } |
| } |