Mercurial > hg > truffle
view truffle/com.oracle.truffle.api.interop/src/com/oracle/truffle/api/interop/ForeignAccessArguments.java @ 22502:d2b4fe945c23
Add missing Truffle boundary
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Wed, 16 Dec 2015 15:32:23 -0800 |
parents | a016a0239ad9 |
children |
line wrap: on
line source
/* * Copyright (c) 2014, 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. */ package com.oracle.truffle.api.interop; import com.oracle.truffle.api.CompilerDirectives; import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; import com.oracle.truffle.api.nodes.Node; final class ForeignAccessArguments extends Node { static final Object[] EMPTY_ARGUMENTS_ARRAY = new Object[0]; static final int RECEIVER_INDEX = 0; static final int RUNTIME_ARGUMENT_COUNT = 1; @CompilationFinal private int previousLength = -2; public Object[] executeCreate(Object receiver, Object... arguments) { int length = profileLength(arguments.length); Object[] objectArguments = new Object[RUNTIME_ARGUMENT_COUNT + length]; objectArguments[RECEIVER_INDEX] = receiver; arraycopy(arguments, 0, objectArguments, RUNTIME_ARGUMENT_COUNT, length); return objectArguments; } private int profileLength(int length) { int returnLength = length; if (previousLength != -1) { if (previousLength == length) { returnLength = previousLength; } else { CompilerDirectives.transferToInterpreterAndInvalidate(); if (previousLength == -2) { previousLength = length; } else { previousLength = -1; } } } return returnLength; } private static void arraycopy(Object[] src, int srcPos, Object[] dest, int destPos, int length) { for (int i = 0; i < length; i++) { dest[destPos + i] = src[srcPos + i]; } } }