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