Mercurial > hg > truffle
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/GuardExpression.java @ 16763:e6d15134ca86
Truffle-DSL: fixed formatting problems.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 11 Aug 2014 16:21:54 +0200 |
parents | 23415229349b |
children | 90984ae0eaa8 |
rev | line source |
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16763
e6d15134ca86
Truffle-DSL: fixed formatting problems.
Christian Humer <christian.humer@gmail.com>
parents:
16759
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changeset
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1 package com.oracle.truffle.dsl.processor.model; |
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2 |
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3 import java.util.*; |
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4 |
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5 public final class GuardExpression { |
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6 |
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7 private GuardData resolvedGuard; |
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8 |
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9 private final String guardName; |
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10 private final boolean negated; |
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11 |
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12 public GuardExpression(String expression) { |
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13 if (expression.startsWith("!")) { |
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14 guardName = expression.substring(1, expression.length()); |
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15 negated = true; |
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16 } else { |
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17 guardName = expression; |
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18 negated = false; |
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19 } |
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20 } |
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21 |
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22 public boolean isResolved() { |
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23 return resolvedGuard != null; |
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24 } |
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25 |
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26 public String getGuardName() { |
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27 return guardName; |
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28 } |
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29 |
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30 public void setGuard(GuardData guard) { |
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31 this.resolvedGuard = guard; |
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32 } |
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33 |
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34 @Override |
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35 public boolean equals(Object obj) { |
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36 if (obj instanceof GuardExpression) { |
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37 GuardExpression other = (GuardExpression) obj; |
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38 if (isResolved() && other.isResolved()) { |
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39 return resolvedGuard.equals(other.resolvedGuard) && negated == other.negated; |
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40 } else { |
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41 return guardName.equals(other.guardName) && negated == other.negated; |
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42 } |
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43 } |
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44 return false; |
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45 } |
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Christian Humer <christian.humer@gmail.com>
parents:
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46 |
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47 @Override |
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48 public int hashCode() { |
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49 return Objects.hash(guardName, negated, resolvedGuard); |
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50 } |
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51 |
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52 public final boolean implies(GuardExpression other) { |
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53 if (other == this) { |
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54 return true; |
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55 } |
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56 if (getGuardName().equals(other.getGuardName())) { |
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57 if (isNegated() == other.isNegated()) { |
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58 return true; |
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59 } |
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60 } |
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61 |
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62 if (isResolved() && other.isResolved()) { |
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63 for (GuardExpression implies : getResolvedGuard().getImpliesExpressions()) { |
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64 if (implies.getGuardName().equals(other.getGuardName())) { |
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65 if (implies.isNegated() == other.isNegated()) { |
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66 return true; |
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67 } |
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68 } |
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69 } |
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70 } |
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71 return false; |
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72 } |
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73 |
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74 @Override |
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75 public String toString() { |
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76 return (negated ? "!" : "") + guardName; |
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77 } |
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78 |
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79 public boolean isNegated() { |
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80 return negated; |
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81 } |
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82 |
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83 public GuardData getResolvedGuard() { |
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84 return resolvedGuard; |
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85 } |
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86 |
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87 } |