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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 import com.oracle.truffle.ruby.runtime.core.array.*;
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17
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18 @CoreClass(name = "Exception")
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19 public abstract class ExceptionNodes {
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20
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21 @CoreMethod(names = "initialize", minArgs = 0, maxArgs = 1)
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22 public abstract static class InitializeNode extends CoreMethodNode {
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23
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24 public InitializeNode(RubyContext context, SourceSection sourceSection) {
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25 super(context, sourceSection);
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26 }
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27
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28 public InitializeNode(InitializeNode prev) {
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29 super(prev);
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30 }
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31
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32 @Specialization
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33 public NilPlaceholder initialize(RubyException exception, @SuppressWarnings("unused") UndefinedPlaceholder message) {
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34 exception.initialize(getContext().makeString(" "));
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35 return NilPlaceholder.INSTANCE;
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36 }
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37
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38 @Specialization
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39 public NilPlaceholder initialize(RubyException exception, RubyString message) {
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40 exception.initialize(message);
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41 return NilPlaceholder.INSTANCE;
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42 }
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43
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44 }
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45
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46 @CoreMethod(names = "backtrace", needsSelf = false, maxArgs = 0)
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47 public abstract static class BacktraceNode extends CoreMethodNode {
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48
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49 public BacktraceNode(RubyContext context, SourceSection sourceSection) {
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50 super(context, sourceSection);
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51 }
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52
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53 public BacktraceNode(BacktraceNode prev) {
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54 super(prev);
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55 }
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56
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57 @Specialization
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58 public RubyArray backtrace() {
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59 return new RubyArray(getContext().getCoreLibrary().getArrayClass());
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60 }
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61
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62 }
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63
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64 @CoreMethod(names = "message", maxArgs = 0)
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65 public abstract static class MessageNode extends CoreMethodNode {
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66
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67 public MessageNode(RubyContext context, SourceSection sourceSection) {
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68 super(context, sourceSection);
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69 }
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70
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71 public MessageNode(MessageNode prev) {
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72 super(prev);
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73 }
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74
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75 @Specialization
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76 public RubyString message(RubyException exception) {
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77 return exception.getMessage();
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78 }
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79
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80 }
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81
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82 }
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