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//
// HasMemberCriterion.cs
//
// Author:
// Simon Lindgren <simon.n.lindgren@gmail.com>
//
// Copyright (c) 2012 Simon Lindgren
//
// 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.TypeSystem;
using System.Linq;
using System.Collections.Generic;
namespace ICSharpCode.NRefactory.CSharp.Refactoring
{
public class HasMemberCriterion : ITypeCriterion
{
// IMember neededMember;
IList<IMember> acceptableMembers;
public HasMemberCriterion(IMember neededMember)
{
// this.neededMember = neededMember;
if (neededMember.ImplementedInterfaceMembers.Any()) {
acceptableMembers = neededMember.ImplementedInterfaceMembers.ToList();
} else if (neededMember.IsOverride) {
acceptableMembers = new List<IMember>();
foreach (var member in InheritanceHelper.GetBaseMembers(neededMember, true)) {
acceptableMembers.Add(member);
if (member.IsShadowing)
break;
}
acceptableMembers.Add(neededMember);
} else {
acceptableMembers = new List<IMember> { neededMember };
}
}
#region ITypeCriterion implementation
public bool SatisfiedBy (IType type)
{
if (type == null)
throw new ArgumentNullException("type");
var typeMembers = type.GetMembers();
return typeMembers.Any(member => HasCommonMemberDeclaration(acceptableMembers, member));
}
#endregion
static bool HasCommonMemberDeclaration(IEnumerable<IMember> acceptableMembers, IMember member)
{
var implementedInterfaceMembers = member.MemberDefinition.ImplementedInterfaceMembers;
if (implementedInterfaceMembers.Any()) {
return ContainsAny(acceptableMembers, implementedInterfaceMembers);
} else {
return acceptableMembers.Contains(member/*.MemberDefinition*/);
}
}
static bool ContainsAny<T>(IEnumerable<T> collection, IEnumerable<T> items)
{
foreach (var item in items) {
if (collection.Contains(item))
return true;
}
return false;
}
}
}
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