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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 ICSharpCode.NRefactory.Semantics;
using ICSharpCode.NRefactory.TypeSystem;
namespace ICSharpCode.NRefactory.CSharp.Resolver
{
/// <summary>
/// Find all entities that are referenced in the scanned AST.
/// </summary>
public sealed class FindReferencedEntities : IResolveVisitorNavigator
{
readonly Action<AstNode, IMember> memberReferenceFound;
readonly Action<AstNode, IType> typeReferenceFound;
/// <summary>
/// Creates a new FindReferencedEntities instance that
/// looks for entity definitions.
/// The visitor will report type definitions and member definitions (not specialized members).
/// </summary>
public FindReferencedEntities(Action<AstNode, IEntity> referenceFound)
{
if (referenceFound == null)
throw new ArgumentNullException("referenceFound");
this.memberReferenceFound = (node, member) => referenceFound(node, member.MemberDefinition);
this.typeReferenceFound = (node, type) => {
var def = type.GetDefinition();
if (def != null)
referenceFound(node, def);
};
}
/// <summary>
/// Creates a new FindReferencedEntities instance that
/// looks for types and members.
/// The visitor will report parameterized types and potentially specialized members.
/// </summary>
public FindReferencedEntities(Action<AstNode, IType> typeReferenceFound, Action<AstNode, IMember> memberReferenceFound)
{
if (typeReferenceFound == null)
throw new ArgumentNullException("typeReferenceFound");
if (memberReferenceFound == null)
throw new ArgumentNullException("memberReferenceFound");
this.typeReferenceFound = typeReferenceFound;
this.memberReferenceFound = memberReferenceFound;
}
public ResolveVisitorNavigationMode Scan(AstNode node)
{
return ResolveVisitorNavigationMode.Resolve;
}
public void Resolved(AstNode node, ResolveResult result)
{
if (ParenthesizedExpression.ActsAsParenthesizedExpression(node))
return;
MemberResolveResult mrr = result as MemberResolveResult;
if (mrr != null) {
memberReferenceFound(node, mrr.Member);
}
TypeResolveResult trr = result as TypeResolveResult;
if (trr != null) {
typeReferenceFound(node, trr.Type);
}
ForEachResolveResult ferr = result as ForEachResolveResult;
if (ferr != null) {
Resolved(node, ferr.GetEnumeratorCall);
if (ferr.CurrentProperty != null)
memberReferenceFound(node, ferr.CurrentProperty);
if (ferr.MoveNextMethod != null)
memberReferenceFound(node, ferr.MoveNextMethod);
}
}
public void ProcessConversion(Expression expression, ResolveResult result, Conversion conversion, IType targetType)
{
if (conversion.IsUserDefined || conversion.IsMethodGroupConversion) {
memberReferenceFound(expression, conversion.Method);
}
}
}
}
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