Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStatementWrapperNode.java @ 18485:e3c95cbbb50c
Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Sun, 23 Nov 2014 16:07:23 -0800 |
parents | |
children | d1c1cd2530d7 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStatementWrapperNode.java Sun Nov 23 16:07:23 2014 -0800 @@ -0,0 +1,99 @@ +/* + * 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.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 SLStatementNode getNonWrapperNode() { + return child; + } + + public void insertProbe(ProbeNode newProbeNode) { + this.probeNode = newProbeNode; + } + + public Probe getProbe() { + try { + return probeNode.getProbe(); + } catch (IllegalStateException e) { + throw new IllegalStateException("A lite-Probed wrapper has no explicit Probe"); + } + } + + @Override + public Node getChild() { + return child; + } + + @Override + public void executeVoid(VirtualFrame frame) { + probeNode.enter(child, frame); + + try { + child.executeVoid(frame); + probeNode.returnVoid(child, frame); + } catch (KillException e) { + throw (e); + } catch (Exception e) { + probeNode.returnExceptional(child, frame, e); + throw (e); + } + } + + @Override + public Probe probe() { + throw new IllegalStateException("Cannot call probe() on a wrapper."); + } + + @Override + public void probeLite(TruffleEventReceiver eventReceiver) { + throw new IllegalStateException("Cannot call probeLite() on a wrapper."); + } +}