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view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStatementWrapperNode.java @ 21116:bf8cbbfabdcf
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author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Fri, 24 Apr 2015 12:05:38 -0700 |
parents | 1d6a7ea5de59 |
children |
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/* * Copyright (c) 2012, 2015, 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.nodes.instrument; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.instrument.*; import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.sl.nodes.*; /** * A Truffle node that can be inserted into a Simple AST (assumed not to have executed yet) to * enable "instrumentation" of a {@link SLStatementNode}. Tools wishing to interact with AST * execution may attach {@link Instrument}s to the {@link Probe} uniquely associated with the * wrapper, and to which this wrapper routes execution events. */ @NodeInfo(cost = NodeCost.NONE) public final class SLStatementWrapperNode extends SLStatementNode implements WrapperNode { @Child private SLStatementNode child; @Child private ProbeNode probeNode; public SLStatementWrapperNode(SLStatementNode child) { super(child.getSourceSection()); assert !(child instanceof SLStatementWrapperNode); this.child = child; } public String instrumentationInfo() { return "Wrapper node for SL Statements"; } @Override public boolean isInstrumentable() { return false; } @Override public SLStatementNode getNonWrapperNode() { return child; } public void insertProbe(ProbeNode newProbeNode) { this.probeNode = newProbeNode; } public Probe getProbe() { return probeNode.getProbe(); } @Override public Node getChild() { return child; } @Override public void executeVoid(VirtualFrame vFrame) { probeNode.enter(child, vFrame); try { child.executeVoid(vFrame); probeNode.returnVoid(child, vFrame); } catch (KillException e) { throw (e); } catch (Exception e) { probeNode.returnExceptional(child, vFrame, e); throw (e); } } }