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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLExpressionWrapper.java @ 18311:3343ed66de79

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Truffle: RootNode#getExecutionContext.
author Chris Seaton <chris.seaton@oracle.com>
date Sun, 09 Nov 2014 00:54:15 +0000
parents b4e38f4ca414
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 * A Truffle node that can be inserted into a Simple AST (assumed not to have executed yet) to
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36 * enable "instrumentation" of an {@link SLExpressionNode}. Tools wishing to interact with AST
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37 * execution may attach {@link Instrument}s to the {@link Probe} uniquely associated with the
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38 * wrapper, and to which this wrapper routes {@link ExecutionEvents}.
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39 */
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40
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41 public final class SLExpressionWrapper extends SLExpressionNode implements Wrapper {
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42 @Child private SLExpressionNode child;
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43
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44 private final Probe probe;
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45
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46 /**
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47 * Constructor.
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48 *
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49 * @param context The current Simple execution context
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50 * @param child The {@link SLExpressionNode} that this wrapper is wrapping
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51 */
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52 public SLExpressionWrapper(SLContext context, SLExpressionNode child) {
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53 super(child.getSourceSection());
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54 assert !(child instanceof SLExpressionWrapper);
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55 this.probe = context.createProbe(child.getSourceSection());
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56 this.child = child;
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57 // The child should only be inserted after a replace, so we defer inserting the child to the
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58 // creator of the wrapper.
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59 }
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60
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61 @Override
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62 public SLExpressionNode getNonWrapperNode() {
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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 Node getChild() {
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68 return child;
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69 }
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70
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71 @Override
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72 public Probe getProbe() {
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73 return probe;
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74 }
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75
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76 @TruffleBoundary
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77 public void tagAs(SyntaxTag tag) {
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78 probe.tagAs(tag);
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79 }
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80
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81 @Override
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82 public Object executeGeneric(VirtualFrame frame) {
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83 this.tagAs(StandardSyntaxTag.STATEMENT);
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84 probe.enter(child, frame);
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85 Object result;
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86
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87 try {
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88 result = child.executeGeneric(frame);
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89 probe.leave(child, frame, result);
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90 } catch (Exception e) {
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91 probe.leaveExceptional(child, frame, e);
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92 throw (e);
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93 }
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94 return result;
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95 }
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96
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97 @Override
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98 public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
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99 this.tagAs(StandardSyntaxTag.STATEMENT);
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100 return SLTypesGen.SLTYPES.expectLong(executeGeneric(frame));
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101 }
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102
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103 @Override
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104 public BigInteger executeBigInteger(VirtualFrame frame) throws UnexpectedResultException {
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105 this.tagAs(StandardSyntaxTag.STATEMENT);
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106 return SLTypesGen.SLTYPES.expectBigInteger(executeGeneric(frame));
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107 }
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108
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109 @Override
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110 public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
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111 this.tagAs(StandardSyntaxTag.STATEMENT);
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112 return SLTypesGen.SLTYPES.expectBoolean(executeGeneric(frame));
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113 }
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114
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115 @Override
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116 public String executeString(VirtualFrame frame) throws UnexpectedResultException {
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117 this.tagAs(StandardSyntaxTag.STATEMENT);
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118 return SLTypesGen.SLTYPES.expectString(executeGeneric(frame));
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119 }
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120
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121 @Override
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122 public SLFunction executeFunction(VirtualFrame frame) throws UnexpectedResultException {
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123 this.tagAs(StandardSyntaxTag.STATEMENT);
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124 probe.enter(child, frame);
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125 SLFunction result;
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126
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127 try {
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128 result = child.executeFunction(frame);
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129 probe.leave(child, frame, result);
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130 } catch (Exception e) {
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131 probe.leaveExceptional(child, frame, e);
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132 throw (e);
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133 }
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134 return result;
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135 }
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136
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137 @Override
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138 public SLNull executeNull(VirtualFrame frame) throws UnexpectedResultException {
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139 return SLTypesGen.SLTYPES.expectSLNull(executeGeneric(frame));
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140 }
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141
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142 }