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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLExpressionNode.java @ 16880:7661cc464239

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Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map SL: Updated implementation to use new Instrumentable interface
author David Piorkowski <david.piorkowski@oracle.com>
date Thu, 21 Aug 2014 13:28:22 -0700
parents abe7128ca473
children 997899955e72
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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.*;
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28 import com.oracle.truffle.api.dsl.*;
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29 import com.oracle.truffle.api.frame.*;
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30 import com.oracle.truffle.api.instrument.*;
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31 import com.oracle.truffle.api.nodes.*;
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32 import com.oracle.truffle.api.source.*;
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33 import com.oracle.truffle.sl.nodes.instrument.*;
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34 import com.oracle.truffle.sl.runtime.*;
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35
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36 /**
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37 * Base class for all SL nodes that produce a value and therefore benefit from type specialization.
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38 * The annotation {@link TypeSystemReference} specifies the SL types. Specifying it here defines the
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39 * type system for all subclasses.
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40 */
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41 @TypeSystemReference(SLTypes.class)
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42 @NodeInfo(description = "The abstract base node for all expressions")
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43 public abstract class SLExpressionNode extends SLStatementNode {
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44
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45 public SLExpressionNode(SourceSection src) {
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46 super(src);
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47 }
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48
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49 /**
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50 * The execute method when no specialization is possible. This is the most general case,
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51 * therefore it must be provided by all subclasses.
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52 */
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53 public abstract Object executeGeneric(VirtualFrame frame);
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54
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55 /**
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56 * When we use an expression at places where a {@link SLStatementNode statement} is already
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57 * sufficient, the return value is just discarded.
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58 */
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59 @Override
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60 public void executeVoid(VirtualFrame frame) {
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61 executeGeneric(frame);
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62 }
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63
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64 /*
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65 * Execute methods for specialized types. They all follow the same pattern: they call the
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66 * generic execution method and then expect a result of their return type. Type-specialized
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67 * subclasses overwrite the appropriate methods.
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68 */
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69
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70 public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
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71 return SLTypesGen.SLTYPES.expectLong(executeGeneric(frame));
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72 }
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73
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74 public BigInteger executeBigInteger(VirtualFrame frame) throws UnexpectedResultException {
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75 return SLTypesGen.SLTYPES.expectBigInteger(executeGeneric(frame));
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76 }
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77
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78 public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
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79 return SLTypesGen.SLTYPES.expectBoolean(executeGeneric(frame));
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80 }
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81
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82 public String executeString(VirtualFrame frame) throws UnexpectedResultException {
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83 return SLTypesGen.SLTYPES.expectString(executeGeneric(frame));
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84 }
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85
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86 public SLFunction executeFunction(VirtualFrame frame) throws UnexpectedResultException {
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87 return SLTypesGen.SLTYPES.expectSLFunction(executeGeneric(frame));
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88 }
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89
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90 public SLNull executeNull(VirtualFrame frame) throws UnexpectedResultException {
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91 return SLTypesGen.SLTYPES.expectSLNull(executeGeneric(frame));
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92 }
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93
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94 @Override
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95 public Probe probe(ExecutionContext context) {
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96 Node parent = getParent();
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97
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98 if (parent == null)
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99 throw new IllegalStateException("Cannot probe a node without a parent");
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100
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101 if (parent instanceof SLExpressionWrapper)
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102 return ((SLExpressionWrapper) parent).getProbe();
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103
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104 SLExpressionWrapper wrapper = new SLExpressionWrapper((SLContext) context, this);
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105 this.replace(wrapper);
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106 wrapper.insertChild();
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107 return wrapper.getProbe();
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108 }
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109 }