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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.core;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.dsl.*;
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14 import com.oracle.truffle.ruby.runtime.*;
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15 import com.oracle.truffle.ruby.runtime.core.*;
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16
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17 @CoreClass(name = "Symbol")
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18 public abstract class SymbolNodes {
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19
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20 @CoreMethod(names = {"==", "==="}, minArgs = 1, maxArgs = 1)
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21 public abstract static class EqualNode extends CoreMethodNode {
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22
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23 public EqualNode(RubyContext context, SourceSection sourceSection) {
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24 super(context, sourceSection);
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25 }
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26
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27 public EqualNode(EqualNode prev) {
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28 super(prev);
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29 }
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30
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31 @Specialization
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32 public boolean equal(@SuppressWarnings("unused") RubyString a, @SuppressWarnings("unused") NilPlaceholder b) {
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33 return false;
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34 }
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35
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36 @Specialization
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37 public boolean equal(RubySymbol a, RubySymbol b) {
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38 return a.toString().equals(b.toString());
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39 }
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40
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41 @Specialization
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42 public boolean equal(RubySymbol a, RubyString b) {
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43 return a.toString().equals(b.toString());
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44 }
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45
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46 @Specialization
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47 public boolean equal(RubySymbol a, int b) {
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48 return a.toString().equals(Integer.toString(b));
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49 }
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50
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51 }
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52
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53 @CoreMethod(names = "empty?", maxArgs = 0)
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54 public abstract static class EmptyNode extends CoreMethodNode {
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55
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56 public EmptyNode(RubyContext context, SourceSection sourceSection) {
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57 super(context, sourceSection);
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58 }
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59
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60 public EmptyNode(EmptyNode prev) {
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61 super(prev);
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62 }
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63
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64 @Specialization
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65 public boolean empty(RubySymbol symbol) {
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66 return symbol.toString().isEmpty();
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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 @CoreMethod(names = "to_proc", maxArgs = 0)
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72 public abstract static class ToProcNode extends CoreMethodNode {
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73
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74 public ToProcNode(RubyContext context, SourceSection sourceSection) {
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75 super(context, sourceSection);
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76 }
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77
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78 public ToProcNode(ToProcNode prev) {
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79 super(prev);
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80 }
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81
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82 @Specialization
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83 public RubyProc toProc(RubySymbol symbol) {
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84 // TODO(CS): this should be doing all kinds of caching
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85 return symbol.toProc();
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86 }
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87 }
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88
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89 @CoreMethod(names = "to_sym", maxArgs = 0)
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90 public abstract static class ToSymNode extends CoreMethodNode {
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91
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92 public ToSymNode(RubyContext context, SourceSection sourceSection) {
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93 super(context, sourceSection);
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94 }
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95
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96 public ToSymNode(ToSymNode prev) {
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97 super(prev);
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98 }
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99
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100 @Specialization
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101 public RubySymbol toSym(RubySymbol symbol) {
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102 return symbol;
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103 }
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104
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105 }
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106
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107 }
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