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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLExpressionNode.java @ 18485:e3c95cbbb50c

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Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Sun, 23 Nov 2014 16:07:23 -0800
parents f0c3de09f12a
children ccb97347d874
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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;
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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.dsl.*;
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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.api.source.*;
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32 import com.oracle.truffle.sl.nodes.instrument.*;
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33 import com.oracle.truffle.sl.runtime.*;
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34
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35 /**
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36 * Base class for all SL nodes that produce a value and therefore benefit from type specialization.
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37 * The annotation {@link TypeSystemReference} specifies the SL types. Specifying it here defines the
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38 * type system for all subclasses.
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39 */
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40 @TypeSystemReference(SLTypes.class)
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41 @NodeInfo(description = "The abstract base node for all expressions")
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42 public abstract class SLExpressionNode extends SLStatementNode {
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43
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44 public SLExpressionNode(SourceSection src) {
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45 super(src);
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46 }
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47
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48 /**
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49 * The execute method when no specialization is possible. This is the most general case,
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50 * therefore it must be provided by all subclasses.
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51 */
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52 public abstract Object executeGeneric(VirtualFrame frame);
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53
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54 /**
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55 * When we use an expression at places where a {@link SLStatementNode statement} is already
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56 * sufficient, the return value is just discarded.
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57 */
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58 @Override
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59 public void executeVoid(VirtualFrame frame) {
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60 executeGeneric(frame);
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61 }
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62
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63 /*
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64 * Execute methods for specialized types. They all follow the same pattern: they call the
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65 * generic execution method and then expect a result of their return type. Type-specialized
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66 * subclasses overwrite the appropriate methods.
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67 */
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68
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69 public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
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70 return SLTypesGen.SLTYPES.expectLong(executeGeneric(frame));
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71 }
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72
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73 public BigInteger executeBigInteger(VirtualFrame frame) throws UnexpectedResultException {
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74 return SLTypesGen.SLTYPES.expectBigInteger(executeGeneric(frame));
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75 }
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76
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77 public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
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78 return SLTypesGen.SLTYPES.expectBoolean(executeGeneric(frame));
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79 }
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80
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81 public String executeString(VirtualFrame frame) throws UnexpectedResultException {
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82 return SLTypesGen.SLTYPES.expectString(executeGeneric(frame));
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83 }
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84
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85 public SLFunction executeFunction(VirtualFrame frame) throws UnexpectedResultException {
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86 return SLTypesGen.SLTYPES.expectSLFunction(executeGeneric(frame));
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87 }
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88
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89 public SLNull executeNull(VirtualFrame frame) throws UnexpectedResultException {
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90 return SLTypesGen.SLTYPES.expectSLNull(executeGeneric(frame));
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91 }
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92
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93 @Override
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94 public Probe probe() {
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95 Node parent = getParent();
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96
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97 if (parent == null) {
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98 throw new IllegalStateException("Cannot call probe() a node without a parent.");
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99 }
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100
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101 if (parent instanceof SLExpressionWrapperNode) {
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102 return ((SLExpressionWrapperNode) parent).getProbe();
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103 }
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104
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105 // Create a new wrapper/probe with this node as its child.
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106 final SLExpressionWrapperNode wrapper = new SLExpressionWrapperNode(this);
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107
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108 // Connect it to a Probe
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109 final Probe probe = ProbeNode.insertProbe(wrapper);
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110
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111 // Replace this node in the AST with the wrapper
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112 this.replace(wrapper);
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113
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114 return probe;
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115 }
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116
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117 @Override
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118 public void probeLite(TruffleEventReceiver eventReceiver) {
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119 Node parent = getParent();
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120
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121 if (parent == null) {
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122 throw new IllegalStateException("Cannot call probeLite() on a node without a parent.");
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123 }
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124
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125 if (parent instanceof SLExpressionWrapperNode) {
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126 throw new IllegalStateException("Cannot call probeLite() on a node that already has a wrapper.");
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127 }
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128 final SLExpressionWrapperNode wrapper = new SLExpressionWrapperNode(this);
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129 ProbeNode.insertProbeLite(wrapper, eventReceiver);
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130
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131 this.replace(wrapper);
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David Piorkowski <david.piorkowski@oracle.com>
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132 }
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31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
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133 }