Mercurial > hg > truffle
diff truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java @ 21951:9c8c0937da41
Moving all sources into truffle subdirectory
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
---|---|
date | Wed, 17 Jun 2015 10:58:08 +0200 |
parents | graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java@9d55732d0880 |
children | dc83cc1f94f2 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java Wed Jun 17 10:58:08 2015 +0200 @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2012, 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.frame; + +import com.oracle.truffle.api.*; +import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; + +/** + * A slot in a frame that can store a value of a given type. + */ +public final class FrameSlot implements Cloneable { + + private final FrameDescriptor descriptor; + private final Object identifier; + private final Object info; + private final int index; + @CompilationFinal private FrameSlotKind kind; + + public FrameSlot(FrameDescriptor descriptor, Object identifier, Object info, int index, FrameSlotKind kind) { + this.descriptor = descriptor; + this.identifier = identifier; + this.info = info; + this.index = index; + this.kind = kind; + } + + public Object getIdentifier() { + return identifier; + } + + public Object getInfo() { + return info; + } + + public int getIndex() { + return index; + } + + public FrameSlotKind getKind() { + return kind; + } + + public void setKind(final FrameSlotKind kind) { + if (this.kind != kind) { + CompilerDirectives.transferToInterpreter(); + this.kind = kind; + this.descriptor.updateVersion(); + } + } + + @Override + public String toString() { + return "[" + index + "," + identifier + "," + kind + "]"; + } + + public FrameDescriptor getFrameDescriptor() { + return this.descriptor; + } +}