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annotate graal/com.oracle.truffle.ruby.parser/src/com/oracle/truffle/ruby/parser/DefaultRubyNodeInstrumenter.java @ 13918:22bf5a8ba9eb

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Ruby: restore prototype debugger.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 10 Feb 2014 03:39:21 +0000
parents 2c1c805153e6
children
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1 /*
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2 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.parser;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.nodes.instrument.*;
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14 import com.oracle.truffle.api.source.*;
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15 import com.oracle.truffle.ruby.nodes.*;
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16 import com.oracle.truffle.ruby.nodes.debug.*;
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17 import com.oracle.truffle.ruby.runtime.*;
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18 import com.oracle.truffle.ruby.runtime.debug.*;
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19 import com.oracle.truffle.ruby.runtime.methods.*;
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20
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21 /**
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22 * Utility for instrumenting Ruby AST nodes to support the language's built-in <A
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23 * href="http://www.ruby-doc.org/core-2.0.0/Kernel.html#method-i-set_trace_func">tracing
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24 * facility</A>. It ignores nodes other than {@linkplain NodePhylum#STATEMENT statements}.
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25 */
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26 final class DefaultRubyNodeInstrumenter implements RubyNodeInstrumenter {
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27
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28 public DefaultRubyNodeInstrumenter() {
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29 }
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30
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31 public RubyNode instrumentAsStatement(RubyNode node) {
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32 assert node != null;
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33
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34 final RubyContext context = node.getContext();
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35
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36 RubyProxyNode proxy;
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37
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38 if (node instanceof RubyProxyNode) {
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39 proxy = (RubyProxyNode) node;
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40 } else {
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41 proxy = new RubyProxyNode(node.getContext(), node);
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42 proxy.markAs(NodePhylum.STATEMENT);
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43 proxy.clearSourceSection();
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44 proxy.assignSourceSection(node.getSourceSection());
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45 }
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46
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47 if (context.getConfiguration().getTrace()) {
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48 proxy.getProbeChain().appendProbe(new RubyTraceProbe(context));
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49 }
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50
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51 if (context.getConfiguration().getDebug()) {
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52 final SourceSection sourceSection = proxy.getChild().getSourceSection();
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53 final SourceLineLocation sourceLine = new SourceLineLocation(sourceSection.getSource(), sourceSection.getStartLine());
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54 proxy.getProbeChain().appendProbe(new InactiveLineDebugProbe(context, sourceLine, context.getRubyDebugManager().getAssumption(sourceLine)));
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55 }
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56
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57 return proxy;
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58 }
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59
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60 public RubyNode instrumentAsCall(RubyNode node, String callName) {
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61 return node;
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62 }
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63
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64 public RubyNode instrumentAsLocalAssignment(RubyNode node, UniqueMethodIdentifier methodIdentifier, String localName) {
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65 assert node != null;
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66
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67 final RubyContext context = node.getContext();
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68
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69 RubyProxyNode proxy;
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70
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71 if (node instanceof RubyProxyNode) {
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72 proxy = (RubyProxyNode) node;
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73 } else {
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74 proxy = new RubyProxyNode(node.getContext(), node);
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75 proxy.markAs(NodePhylum.STATEMENT);
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76 proxy.clearSourceSection();
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77 proxy.assignSourceSection(node.getSourceSection());
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78 }
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79
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80 if (context.getConfiguration().getDebug()) {
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81 final MethodLocal methodLocal = new MethodLocal(methodIdentifier, localName);
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82 proxy.getProbeChain().appendProbe(new InactiveLocalDebugProbe(context, methodLocal, context.getRubyDebugManager().getAssumption(methodLocal)));
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83 }
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84
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85 return proxy;
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86 }
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87
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88 }