Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProxyNode.java @ 13455:69d2e4baa215
Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 17 Dec 2013 20:22:45 -0800 |
parents | |
children | b88852aea6f3 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProxyNode.java Tue Dec 17 20:22:45 2013 -0800 @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2013, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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.api.nodes.instrument; + +import com.oracle.truffle.api.nodes.instrument.InstrumentationProbeNode.ProbeChain; + +/** + * Interface implemented by language-specific Truffle <strong>proxy nodes</strong>: nodes that do + * not participate in the language's execution semantics, but which are inserted into an AST so that + * tools (e.g. tracers, analyzers, debuggers) can be notified of AST interpretation events and + * possibly intervene. + * <p> + * Language-specific proxy nodes call notification methods on an attached {@linkplain ProbeChain + * probe chain} which passes along {@linkplain InstrumentationProbeEvents events} to any + * {@linkplain InstrumentationProbeNode probes} that might have been attached. + */ +public interface InstrumentationProxyNode extends InstrumentationNode { + + /** + * Gets the chain of probes to which events at this node are delegated. Note that a chain of + * probes may be used by more than one proxy. + */ + ProbeChain getProbeChain(); + +}