Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLExpressionWrapper.java @ 16961:a1427e40deaf
Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 26 Aug 2014 13:54:53 -0700 |
parents | 7661cc464239 |
children | f0c3de09f12a |
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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.nodes.instrument; import java.math.*; import com.oracle.truffle.api.CompilerDirectives.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.instrument.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.sl.nodes.*; import com.oracle.truffle.sl.runtime.*; /** * A Truffle node that can be inserted into a Simple AST (assumed not to have executed yet) to * enable "instrumentation" of an {@link SLExpressionNode}. 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 {@link ExecutionEvents}. */ public final class SLExpressionWrapper extends SLExpressionNode implements Wrapper { @Child private SLExpressionNode child; private final Probe probe; /** * Constructor. * * @param context The current Simple execution context * @param child The {@link SLExpressionNode} that this wrapper is wrapping */ public SLExpressionWrapper(SLContext context, SLExpressionNode child) { super(child.getSourceSection()); assert !(child instanceof SLExpressionWrapper); this.probe = context.createProbe(child.getSourceSection()); this.child = child; // The child should only be inserted after a replace, so we defer inserting the child to the // creator of the wrapper. } @Override public SLExpressionNode getNonWrapperNode() { return child; } @Override public Node getChild() { return child; } @Override public Probe getProbe() { return probe; } @Override @SlowPath public boolean isTaggedAs(SyntaxTag tag) { return probe.isTaggedAs(tag); } @Override @SlowPath public Iterable<SyntaxTag> getSyntaxTags() { return probe.getSyntaxTags(); } @SlowPath public void tagAs(SyntaxTag tag) { probe.tagAs(tag); } @Override public Object executeGeneric(VirtualFrame frame) { this.tagAs(StandardSyntaxTag.STATEMENT); probe.enter(child, frame); Object result; try { result = child.executeGeneric(frame); probe.leave(child, frame, result); } catch (Exception e) { probe.leaveExceptional(child, frame, e); throw (e); } return result; } @Override public long executeLong(VirtualFrame frame) throws UnexpectedResultException { this.tagAs(StandardSyntaxTag.STATEMENT); return SLTypesGen.SLTYPES.expectLong(executeGeneric(frame)); } @Override public BigInteger executeBigInteger(VirtualFrame frame) throws UnexpectedResultException { this.tagAs(StandardSyntaxTag.STATEMENT); return SLTypesGen.SLTYPES.expectBigInteger(executeGeneric(frame)); } @Override public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException { this.tagAs(StandardSyntaxTag.STATEMENT); return SLTypesGen.SLTYPES.expectBoolean(executeGeneric(frame)); } @Override public String executeString(VirtualFrame frame) throws UnexpectedResultException { this.tagAs(StandardSyntaxTag.STATEMENT); return SLTypesGen.SLTYPES.expectString(executeGeneric(frame)); } @Override public SLFunction executeFunction(VirtualFrame frame) throws UnexpectedResultException { this.tagAs(StandardSyntaxTag.STATEMENT); probe.enter(child, frame); SLFunction result; try { result = child.executeFunction(frame); probe.leave(child, frame, result); } catch (Exception e) { probe.leaveExceptional(child, frame, e); throw (e); } return result; } @Override public SLNull executeNull(VirtualFrame frame) throws UnexpectedResultException { return SLTypesGen.SLTYPES.expectSLNull(executeGeneric(frame)); } /** * Sets the parent pointer of this wrapper's child. */ public void insertChild() { insert(this.child); } }