Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin.java @ 21371:2c2c85ce7f4d
Move VM-independent code out of HotSpot project
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Thu, 14 May 2015 15:56:31 -0700 |
parents | b4e38f4ca414 |
children | b1530a6cce8c |
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/* * Copyright (c) 2012, 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. * * 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.sl.builtins; import com.oracle.truffle.api.*; import com.oracle.truffle.api.CompilerDirectives.*; import com.oracle.truffle.api.dsl.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.frame.FrameInstance.FrameAccess; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.api.source.*; /** * This builtin sets the variable named "hello" in the caller frame to the string "world". */ @NodeInfo(shortName = "helloEqualsWorld") public abstract class SLHelloEqualsWorldBuiltin extends SLBuiltinNode { public SLHelloEqualsWorldBuiltin() { super(new NullSourceSection("SL builtin", "helloEqualsWorld")); } @Specialization @TruffleBoundary public String change() { FrameInstance frameInstance = Truffle.getRuntime().getCallerFrame(); Frame frame = frameInstance.getFrame(FrameAccess.READ_WRITE, false); FrameSlot slot = frame.getFrameDescriptor().findOrAddFrameSlot("hello"); frame.setObject(slot, "world"); return "world"; } }