Mercurial > hg > truffle
diff graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/ForeignCallDescriptor.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/ForeignCallDescriptor.java@288c23143d47 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/ForeignCallDescriptor.java Wed May 27 00:36:16 2015 +0200 @@ -0,0 +1,98 @@ +/* + * 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 com.oracle.jvmci.meta; + +import java.util.*; + +/** + * 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(); + } +}