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// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System.Collections.Generic;
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using ICSharpCode.NRefactory.Semantics;
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using ICSharpCode.NRefactory.TypeSystem;
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namespace ICSharpCode.NRefactory.CSharp.Resolver
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/// <see cref="IResolveVisitorNavigator"/> implementation that resolves a list of nodes.
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/// We will skip all nodes which are not the target nodes or ancestors of the target nodes.
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public class NodeListResolveVisitorNavigator : IResolveVisitorNavigator
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readonly Dictionary<AstNode, ResolveVisitorNavigationMode> dict = new Dictionary<AstNode, ResolveVisitorNavigationMode>();
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/// Creates a new NodeListResolveVisitorNavigator that resolves the specified nodes.
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public NodeListResolveVisitorNavigator(params AstNode[] nodes)
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: this((IEnumerable<AstNode>)nodes)
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/// Creates a new NodeListResolveVisitorNavigator that resolves the specified nodes.
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public NodeListResolveVisitorNavigator(IEnumerable<AstNode> nodes, bool scanOnly = false)
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throw new ArgumentNullException("nodes");
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foreach (var node in nodes) {
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dict[node] = scanOnly ? ResolveVisitorNavigationMode.Scan : ResolveVisitorNavigationMode.Resolve;
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for (var ancestor = node.Parent; ancestor != null && !dict.ContainsKey(ancestor); ancestor = ancestor.Parent) {
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dict.Add(ancestor, ResolveVisitorNavigationMode.Scan);
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public virtual ResolveVisitorNavigationMode Scan(AstNode node)
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ResolveVisitorNavigationMode mode;
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if (dict.TryGetValue(node, out mode)) {
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return ResolveVisitorNavigationMode.Skip;
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public virtual void Resolved(AstNode node, ResolveResult result)
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public virtual void ProcessConversion(Expression expression, ResolveResult result, Conversion conversion, IType targetType)