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 System.Collections.Generic; |
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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.Resolver |
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25 | { |
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26 | /// <summary> |
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27 | /// <see cref="IResolveVisitorNavigator"/> implementation that resolves a list of nodes. |
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28 | /// We will skip all nodes which are not the target nodes or ancestors of the target nodes. |
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29 | /// </summary> |
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30 | public class NodeListResolveVisitorNavigator : IResolveVisitorNavigator |
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31 | { |
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32 | readonly Dictionary<AstNode, ResolveVisitorNavigationMode> dict = new Dictionary<AstNode, ResolveVisitorNavigationMode>(); |
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33 | |
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34 | /// <summary> |
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35 | /// Creates a new NodeListResolveVisitorNavigator that resolves the specified nodes. |
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36 | /// </summary> |
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37 | public NodeListResolveVisitorNavigator(params AstNode[] nodes) |
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38 | : this((IEnumerable<AstNode>)nodes) |
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39 | { |
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40 | } |
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41 | |
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42 | /// <summary> |
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43 | /// Creates a new NodeListResolveVisitorNavigator that resolves the specified nodes. |
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44 | /// </summary> |
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45 | public NodeListResolveVisitorNavigator(IEnumerable<AstNode> nodes, bool scanOnly = false) |
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46 | { |
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47 | if (nodes == null) |
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48 | throw new ArgumentNullException("nodes"); |
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49 | foreach (var node in nodes) { |
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50 | dict[node] = scanOnly ? ResolveVisitorNavigationMode.Scan : ResolveVisitorNavigationMode.Resolve; |
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51 | for (var ancestor = node.Parent; ancestor != null && !dict.ContainsKey(ancestor); ancestor = ancestor.Parent) { |
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52 | dict.Add(ancestor, ResolveVisitorNavigationMode.Scan); |
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53 | } |
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54 | } |
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55 | } |
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56 | |
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57 | /// <inheritdoc/> |
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58 | public virtual ResolveVisitorNavigationMode Scan(AstNode node) |
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59 | { |
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60 | ResolveVisitorNavigationMode mode; |
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61 | if (dict.TryGetValue(node, out mode)) { |
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62 | return mode; |
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63 | } else { |
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64 | return ResolveVisitorNavigationMode.Skip; |
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65 | } |
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66 | } |
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67 | |
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68 | public virtual void Resolved(AstNode node, ResolveResult result) |
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69 | { |
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70 | } |
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71 | |
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72 | public virtual void ProcessConversion(Expression expression, ResolveResult result, Conversion conversion, IType targetType) |
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73 | { |
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74 | } |
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75 | } |
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76 | } |
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