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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLExpressionWrapper.java @ 16595:618d92152d3c

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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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16595
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David Piorkowski <david.piorkowski@oracle.com>
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.sl.nodes.instrument;
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24
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25 import java.math.*;
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26
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27 import com.oracle.truffle.api.CompilerDirectives.*;
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28 import com.oracle.truffle.api.frame.*;
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29 import com.oracle.truffle.api.instrument.*;
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30 import com.oracle.truffle.api.nodes.*;
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31 import com.oracle.truffle.sl.nodes.*;
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32 import com.oracle.truffle.sl.runtime.*;
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33
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34 /**
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35 * SLExpressionWrapper is a Truffle AST node that gets inserted as the parent to the node that it is
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36 * wrapping. Any debugging instruments are attached to this wrapper through {@link Probe}s (which
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37 * themselves contain the instruments. It is through this mechanism that tools can interact directly
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38 * with the AST. <br/>
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39 * {@link SLExpressionWrapper} specifically wraps {@link SLExpressionNode}s and overrides the
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40 * various execute functions in {@link SLExpressionNode} to operate on the child of the wrapper
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41 * instead of the wrapper itself.
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42 *
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43 */
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44 public final class SLExpressionWrapper extends SLExpressionNode implements Wrapper {
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45 @Child private SLExpressionNode child;
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46
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47 private final Probe probe;
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48
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49 public SLExpressionWrapper(SLContext context, SLExpressionNode child) {
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50 super(child.getSourceSection());
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51 assert !(child instanceof SLExpressionWrapper);
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52 this.child = insert(child);
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53 this.probe = context.getProbe(child.getSourceSection());
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54 }
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55
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56 @Override
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57 public SLExpressionNode getNonWrapperNode() {
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58 return child;
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59 }
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60
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61 @Override
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62 public Node getChild() {
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63 return child;
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64 }
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65
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66 @Override
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67 public Probe getProbe() {
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68 return probe;
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69 }
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70
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71 @Override
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72 @SlowPath
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73 public boolean isTaggedAs(SyntaxTag tag) {
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74 return probe.isTaggedAs(tag);
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75 }
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76
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77 @Override
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78 @SlowPath
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79 public Iterable<SyntaxTag> getSyntaxTags() {
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80 return probe.getSyntaxTags();
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81 }
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82
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83 @SlowPath
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84 public void tagAs(SyntaxTag tag) {
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85 probe.tagAs(tag);
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86 }
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87
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88 @Override
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89 public Object executeGeneric(VirtualFrame frame) {
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90 this.tagAs(StandardSyntaxTag.STATEMENT);
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91 probe.enter(child, frame);
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92 Object result;
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93
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94 try {
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95 result = child.executeGeneric(frame);
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96 probe.leave(child, frame, result);
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97 } catch (Exception e) {
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98 probe.leaveExceptional(child, frame, e);
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99 throw (e);
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100 }
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101 return result;
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102 }
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103
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104 @Override
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105 public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
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106 this.tagAs(StandardSyntaxTag.STATEMENT);
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107 return SLTypesGen.SLTYPES.expectLong(executeGeneric(frame));
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108 }
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109
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110 @Override
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111 public BigInteger executeBigInteger(VirtualFrame frame) throws UnexpectedResultException {
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112 this.tagAs(StandardSyntaxTag.STATEMENT);
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113 return SLTypesGen.SLTYPES.expectBigInteger(executeGeneric(frame));
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114 }
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115
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116 @Override
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117 public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
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118 this.tagAs(StandardSyntaxTag.STATEMENT);
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119 return SLTypesGen.SLTYPES.expectBoolean(executeGeneric(frame));
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120 }
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121
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122 @Override
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123 public String executeString(VirtualFrame frame) throws UnexpectedResultException {
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124 this.tagAs(StandardSyntaxTag.STATEMENT);
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125 return SLTypesGen.SLTYPES.expectString(executeGeneric(frame));
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126 }
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127
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128 @Override
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129 public SLFunction executeFunction(VirtualFrame frame) throws UnexpectedResultException {
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130 this.tagAs(StandardSyntaxTag.STATEMENT);
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131 probe.enter(child, frame);
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132 SLFunction result;
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133
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134 try {
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135 result = child.executeFunction(frame);
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136 probe.leave(child, frame, result);
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137 } catch (Exception e) {
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138 probe.leaveExceptional(child, frame, e);
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139 throw (e);
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140 }
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141 return result;
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142 }
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143
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144 @Override
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145 public SLNull executeNull(VirtualFrame frame) throws UnexpectedResultException {
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146 return SLTypesGen.SLTYPES.expectSLNull(executeGeneric(frame));
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147 }
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148 }