Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/Instrument.java @ 18985:867058575979
Truffle: Improved support for "probing" AST nodes:
- Node.isSafelyReplacaeableBy(Node) checks in advance if Node.replace(Node) would be unsafe (crash the VM).
- Hoist Probe() from language imlementations into Node; now completely language agnostic.
- Language implementations support probing by implementing Node.isInstrumentable() and Node.createWrapperNode()
- Node.Probe() throws ProbeException (without side effects) if the probe fails.
-- ProbeException contains an instance of ProbeFailure that diagnoses the failure in detail
- Additional measures to prevent instrumentation from being applied to internal InstrumentationNodes.
- Promote ProbeListener to top level interface and add a default implementation
| author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
|---|---|
| date | Tue, 27 Jan 2015 20:24:54 -0800 |
| parents | e3c95cbbb50c |
| children | 128586040207 |
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| 18984:0f462015296f | 18985:867058575979 |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. Oracle designates this | 7 * published by the Free Software Foundation. Oracle designates this |
| 246 | 246 |
| 247 private InstrumentNode(InstrumentNode nextNode) { | 247 private InstrumentNode(InstrumentNode nextNode) { |
| 248 this.nextInstrument = nextNode; | 248 this.nextInstrument = nextNode; |
| 249 } | 249 } |
| 250 | 250 |
| 251 @Override | |
| 252 public boolean isInstrumentable() { | |
| 253 return false; | |
| 254 } | |
| 255 | |
| 251 /** | 256 /** |
| 252 * Gets the instrument that created this node. | 257 * Gets the instrument that created this node. |
| 253 */ | 258 */ |
| 254 private Instrument getInstrument() { | 259 private Instrument getInstrument() { |
| 255 return Instrument.this; | 260 return Instrument.this; |