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////
//// MemberCollector.cs
////
//// Author:
//// Mansheng Yang <lightyang0@gmail.com>
////
//// Copyright (c) 2012 Mansheng Yang
////
//// 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 System.Linq;
//using MonoDevelop.Projects;
//using MonoDevelop.Ide.TypeSystem;
//using ICSharpCode.NRefactory.TypeSystem;
//
//namespace MonoDevelop.Ide.FindInFiles
//{
// public static class MemberCollector
// {
// static bool MatchParameters (IMember a, IMember b)
// {
// return MatchParameters (a as IParameterizedMember, b as IParameterizedMember);
// }
//
// static bool MatchParameters (IParameterizedMember a, IParameterizedMember b)
// {
// if (a == null && b == null) return true;
// if (a == null || b == null) return false;
//
// return Equals (a.Compilation, a.Parameters, b.Parameters);
// }
//
// #region Code from NRefactory ParameterListComparer
//
// public static bool Equals(ICompilation comp, IList<IParameter> x, IList<IParameter> y)
// {
// if (x == y)
// return true;
// if (x == null || y == null || x.Count != y.Count)
// return false;
// for (int i = 0; i < x.Count; i++) {
// var a = x[i];
// var b = y[i];
// if (a == null && b == null)
// continue;
// if (a == null || b == null)
// return false;
//
// // We want to consider the parameter lists "Method<T>(T a)" and "Method<S>(S b)" as equal.
// // However, the parameter types are not considered equal, as T is a different type parameter than S.
// // In order to compare the method signatures, we will normalize all method type parameters.
// IType aType = a.Type.AcceptVisitor(normalizationVisitor);
// IType bType = b.Type.AcceptVisitor(normalizationVisitor);
// bType = comp.Import (bType);
// if (!aType.Equals(bType))
// return false;
// }
// return true;
// }
//
// sealed class NormalizeTypeVisitor : TypeVisitor
// {
// public override IType VisitTypeParameter(ITypeParameter type)
// {
// if (type.OwnerType == SymbolKind.Method) {
// return ICSharpCode.NRefactory.TypeSystem.Implementation.DummyTypeParameter.GetMethodTypeParameter(type.Index);
// } else {
// return base.VisitTypeParameter(type);
// }
// }
//
// public override IType VisitTypeDefinition(ITypeDefinition type)
// {
// if (type.KnownTypeCode == KnownTypeCode.Object)
// return SpecialType.Dynamic;
// return base.VisitTypeDefinition(type);
// }
// }
//
// static readonly NormalizeTypeVisitor normalizationVisitor = new NormalizeTypeVisitor();
//
// #endregion
//
// /// <summary>
// /// find all base types(types that are not derived from other types) in the specified types
// /// </summary>
// /// <param name="types"></param>
// /// <returns></returns>
// public static IEnumerable<ITypeDefinition> GetBaseTypes (IEnumerable<ITypeDefinition> types)
// {
// if (types == null)
// yield break;
// types = types.ToList ();
// if (!types.Any ())
// yield break;
//
// var baseType = types.FirstOrDefault ();
// var otherTypes = new List<ITypeDefinition> ();
//
// foreach (var type in types.Skip (1)) {
// if (baseType.IsDerivedFrom (type)) {
// baseType = type;
// } else if (!type.IsDerivedFrom (baseType)) {
// // this type is not directly related to baseType
// otherTypes.Add (type);
// }
// }
// yield return baseType;
// foreach (var type in GetBaseTypes (otherTypes))
// yield return type;
// }
//
// static IEnumerable<IMember> GetMembers (ITypeDefinition type, IMember member, bool ignoreInherited,
// Func<IMember, bool> filter)
// {
// var options = ignoreInherited ? GetMemberOptions.IgnoreInheritedMembers : GetMemberOptions.None;
// var members = type.GetMembers (m => m.Name == member.Name, options);
//
///* // Filter out shadowed members.
// // class A { public string Foo { get; set; } } class B : A { public string Foo { get; set; } }
// if (member.SymbolKind == SymbolKind.Property || !(member is IParameterizedMember)) {
// members = members.Where (m => m == member || m.DeclaringType.Kind == TypeKind.Interface);
// }*/
// if (filter != null)
// members = members.Where (filter);
// return members;
// }
//
// static IEnumerable<ITypeDefinition> Import (ICompilation compilation, IEnumerable<ITypeDefinition> types)
// {
// return types.Select (t => compilation.Import (t));
// }
//
// /// <summary>
// /// collect members with the same signature/name(if overloads are included) as the specified member
// /// in the inheritance tree
// /// </summary>
// public static IEnumerable<IMember> CollectMembers (Solution solution, IMember member, ReferenceFinder.RefactoryScope scope,
// bool includeOverloads = true, bool matchDeclaringType = false)
// {
// if (solution == null || member.SymbolKind == SymbolKind.Destructor || member.SymbolKind == SymbolKind.Operator)
// return new [] { member };
//
// if (member.SymbolKind == SymbolKind.Constructor) {
// if (includeOverloads)
// return member.DeclaringType.GetMembers (m => m.SymbolKind == SymbolKind.Constructor, GetMemberOptions.IgnoreInheritedMembers);
// return new [] { member };
// }
//
// Func<IMember, bool> memberFilter = null;
// if (member is IParameterizedMember && !includeOverloads)
// memberFilter = m => MatchParameters (m, member);
//
// var declaringType = member.DeclaringTypeDefinition;
// if (declaringType == null)
// return new [] { member };
// // only collect members in declaringType
// if (matchDeclaringType)
// return GetMembers (declaringType, member, true, memberFilter);
//
// if (declaringType.Kind != TypeKind.Class && declaringType.Kind != TypeKind.Interface)
// return GetMembers (declaringType, member, false, memberFilter);
//
// var searchTypes = new List<ITypeDefinition> ();
// if (includeOverloads) {
// var interfaces = from t in declaringType.GetAllBaseTypeDefinitions ()
// where t.Kind == TypeKind.Interface && GetMembers (t, member, true, memberFilter).Any ()
// select t;
// searchTypes.AddRange (GetBaseTypes (interfaces));
// }
//
// if (member.DeclaringType.Kind == TypeKind.Class) {
// var members = GetMembers (declaringType, member, false, memberFilter).ToList ();
// if (members.Any (m => m.IsOverridable))
// searchTypes.AddRange (GetBaseTypes (members.Select (m => m.DeclaringTypeDefinition)));
// else if (searchTypes.Count == 0)
// return members;
// }
//
// IList<ICompilation> compilations;
// if (scope == ReferenceFinder.RefactoryScope.Solution || scope == ReferenceFinder.RefactoryScope.Unknown) {
// var projects = SearchCollector.CollectProjects (solution, searchTypes);
// compilations = projects.Select (TypeSystemService.GetCompilation).ToList ();
// } else {
// compilations = new [] { member.Compilation };
// }
//
// var result = new List<IMember> ();
// var mainAssemblies = new HashSet<string> (compilations.Select (c => c.MainAssembly.AssemblyName));
// var searchedAssemblies = new HashSet<string> ();
// var searchedTypes = new HashSet<string> ();
//
// foreach (var compilation in compilations) {
// var baseTypeImports = Import(compilation, searchTypes).Where (t => t != null).ToList ();
// if (!baseTypeImports.Any ()) continue;
//
// foreach (var assembly in compilation.Assemblies) {
// // search main assemblies in their projects' own compilation, to avoid possible resolving problems
// if ((mainAssemblies.Contains(assembly.AssemblyName) && assembly != compilation.MainAssembly) ||
// !searchedAssemblies.Add (assembly.AssemblyName))
// continue;
//
// foreach (var type in assembly.GetAllTypeDefinitions ()) {
// // members in base types will also be added
// // because IsDerivedFrom return true for a type itself
// if (!searchedTypes.Add (type.ReflectionName) || !baseTypeImports.Any (type.IsDerivedFrom))
// continue;
// result.AddRange (GetMembers (type, member, true, memberFilter));
// }
// }
// }
// if (!result.Contains (member))
// result.Add (member);
// return result;
// }
//
// }
//}
//
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