Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLExpressionWrapper.java @ 16595:618d92152d3c
SL: Added support for instrumentation.
author | David Piorkowski <david.piorkowski@oracle.com> |
---|---|
date | Thu, 24 Jul 2014 16:14:44 -0700 |
parents | |
children | 7833417c8172 |
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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/SLExpressionWrapper.java Thu Jul 24 16:14:44 2014 -0700 @@ -0,0 +1,148 @@ +/* + * 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.*; + +/** + * SLExpressionWrapper is a Truffle AST node that gets inserted as the parent to the node that it is + * wrapping. Any debugging instruments are attached to this wrapper through {@link Probe}s (which + * themselves contain the instruments. It is through this mechanism that tools can interact directly + * with the AST. <br/> + * {@link SLExpressionWrapper} specifically wraps {@link SLExpressionNode}s and overrides the + * various execute functions in {@link SLExpressionNode} to operate on the child of the wrapper + * instead of the wrapper itself. + * + */ +public final class SLExpressionWrapper extends SLExpressionNode implements Wrapper { + @Child private SLExpressionNode child; + + private final Probe probe; + + public SLExpressionWrapper(SLContext context, SLExpressionNode child) { + super(child.getSourceSection()); + assert !(child instanceof SLExpressionWrapper); + this.child = insert(child); + this.probe = context.getProbe(child.getSourceSection()); + } + + @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)); + } +}