1 | // Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team |
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2 | // |
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3 | // Permission is hereby granted, free of charge, to any person obtaining a copy of this |
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4 | // software and associated documentation files (the "Software"), to deal in the Software |
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5 | // without restriction, including without limitation the rights to use, copy, modify, merge, |
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6 | // publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons |
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7 | // to whom the Software is furnished to do so, subject to the following conditions: |
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8 | // |
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9 | // The above copyright notice and this permission notice shall be included in all copies or |
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10 | // substantial portions of the Software. |
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11 | // |
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12 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
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13 | // INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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14 | // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
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15 | // FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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16 | // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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17 | // DEALINGS IN THE SOFTWARE. |
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18 | |
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19 | using System; |
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20 | using ICSharpCode.NRefactory.CSharp.Resolver; |
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21 | using ICSharpCode.NRefactory.Semantics; |
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22 | using ICSharpCode.NRefactory.TypeSystem; |
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23 | |
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24 | namespace ICSharpCode.NRefactory.CSharp.TypeSystem |
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25 | { |
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26 | /// <summary> |
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27 | /// Looks up an alias (identifier in front of :: operator). |
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28 | /// </summary> |
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29 | /// <remarks> |
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30 | /// The member lookup performed by the :: operator is handled |
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31 | /// by <see cref="MemberTypeOrNamespaceReference"/>. |
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32 | /// </remarks> |
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33 | [Serializable] |
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34 | public sealed class AliasNamespaceReference : TypeOrNamespaceReference, ISupportsInterning |
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35 | { |
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36 | readonly string identifier; |
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37 | |
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38 | public AliasNamespaceReference(string identifier) |
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39 | { |
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40 | if (identifier == null) |
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41 | throw new ArgumentNullException("identifier"); |
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42 | this.identifier = identifier; |
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43 | } |
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44 | |
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45 | public string Identifier { |
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46 | get { return identifier; } |
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47 | } |
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48 | |
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49 | public override ResolveResult Resolve(CSharpResolver resolver) |
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50 | { |
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51 | return resolver.ResolveAlias(identifier); |
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52 | } |
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53 | |
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54 | public override IType ResolveType(CSharpResolver resolver) |
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55 | { |
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56 | // alias cannot refer to types |
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57 | return SpecialType.UnknownType; |
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58 | } |
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59 | |
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60 | public override string ToString() |
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61 | { |
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62 | return identifier + "::"; |
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63 | } |
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64 | |
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65 | int ISupportsInterning.GetHashCodeForInterning() |
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66 | { |
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67 | return identifier.GetHashCode(); |
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68 | } |
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69 | |
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70 | bool ISupportsInterning.EqualsForInterning(ISupportsInterning other) |
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71 | { |
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72 | AliasNamespaceReference anr = other as AliasNamespaceReference; |
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73 | return anr != null && this.identifier == anr.identifier; |
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74 | } |
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75 | } |
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76 | } |
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