| /* |
| * Copyright (c) 2009, 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 org.graalvm.compiler.core.common.spi; |
| |
| import java.util.Arrays; |
| |
| /** |
| * The name and signature of a foreign call. A foreign call differs from a normal compiled Java call |
| * in at least one of these aspects: |
| * <ul> |
| * <li>The call is to C/C++/assembler code.</li> |
| * <li>The call uses different conventions for passing parameters or returning values.</li> |
| * <li>The callee has different register saving semantics. For example, the callee may save all |
| * registers (apart from some specified temporaries) in which case the register allocator doesn't |
| * not need to spill all live registers around the call site.</li> |
| * <li>The call does not occur at an INVOKE* bytecode. Such a call could be transformed into a |
| * standard Java call if the foreign routine is a normal Java method and the runtime supports |
| * linking Java calls at arbitrary bytecodes.</li> |
| * </ul> |
| */ |
| public class ForeignCallDescriptor { |
| |
| private final String name; |
| private final Class<?> resultType; |
| private final Class<?>[] argumentTypes; |
| |
| public ForeignCallDescriptor(String name, Class<?> resultType, Class<?>... argumentTypes) { |
| this.name = name; |
| this.resultType = resultType; |
| this.argumentTypes = argumentTypes; |
| } |
| |
| /** |
| * Gets the name of this foreign call. |
| */ |
| public String getName() { |
| return name; |
| } |
| |
| /** |
| * Gets the return type of this foreign call. |
| */ |
| public Class<?> getResultType() { |
| return resultType; |
| } |
| |
| /** |
| * Gets the argument types of this foreign call. |
| */ |
| public Class<?>[] getArgumentTypes() { |
| return argumentTypes.clone(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return name.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof ForeignCallDescriptor) { |
| ForeignCallDescriptor other = (ForeignCallDescriptor) obj; |
| return other.name.equals(name) && other.resultType.equals(resultType) && Arrays.equals(other.argumentTypes, argumentTypes); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(name).append('('); |
| String sep = ""; |
| for (Class<?> arg : argumentTypes) { |
| sb.append(sep).append(arg.getSimpleName()); |
| sep = ","; |
| } |
| return sb.append(')').append(resultType.getSimpleName()).toString(); |
| } |
| } |