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//
// ExportCodeGenerator.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2013 Xamarin Inc. (http://xamarin.com)
//
// 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 Gtk;
using System.Collections.Generic;
using MonoDevelop.Core;
using System.Linq;
using MonoDevelop.CodeGeneration;
using MonoDevelop.CSharp.Completion;
using Microsoft.CodeAnalysis;
using MonoDevelop.CSharp.Refactoring;
using ICSharpCode.NRefactory6.CSharp;
namespace MonoDevelop.CodeGeneration
{
abstract class BaseExportCodeGenerator : ICodeGenerator
{
public abstract bool IsValidMember (ISymbol member);
#region ICodeGenerator implementation
bool ICodeGenerator.IsValid (CodeGenerationOptions options)
{
return new ExportMethods (this, options).IsValid ();
}
IGenerateAction ICodeGenerator.InitalizeSelection (CodeGenerationOptions options, TreeView treeView)
{
var exportMethods = new ExportMethods (this, options);
exportMethods.Initialize (treeView);
return exportMethods;
}
string ICodeGenerator.Icon {
get {
return "md-method";
}
}
public abstract string Text {
get;
}
public abstract string GenerateDescription {
get;
}
#endregion
// public static Attribute GenerateExportAttribute (RefactoringContext ctx, IMember member)
// {
// if (member == null)
// return null;
//
// bool useMonoTouchNamespace = false;
// var exportAttribute = member.GetAttribute (new FullTypeName (new TopLevelTypeName ("Foundation", "ExportAttribute")));
// if (exportAttribute == null) {
// useMonoTouchNamespace = true;
// exportAttribute = member.GetAttribute (new FullTypeName (new TopLevelTypeName ("MonoTouch.Foundation", "ExportAttribute")));
// }
//
// if (exportAttribute == null || exportAttribute.PositionalArguments.Count == 0)
// return null;
//
// var astType = useMonoTouchNamespace
// ? CreateMonoTouchExportAttributeAst (ctx)
// : CreateUnifiedExportAttributeAst (ctx);
//
// var attr = new Attribute {
// Type = astType,
// };
//
// attr.Arguments.Add (new PrimitiveExpression (exportAttribute.PositionalArguments [0].ConstantValue));
// return attr;
// }
//
// static AstType CreateUnifiedExportAttributeAst (RefactoringContext ctx)
// {
// var astType = ctx.CreateShortType ("Foundation", "ExportAttribute");
// if (astType is SimpleType) {
// astType = new SimpleType ("Export");
// } else {
// astType = new MemberType (new SimpleType ("Foundation"), "Export");
// }
// return astType;
// }
//
// static AstType CreateMonoTouchExportAttributeAst (RefactoringContext ctx)
// {
// var astType = ctx.CreateShortType ("MonoTouch.Foundation", "ExportAttribute");
// if (astType is SimpleType) {
// astType = new SimpleType ("Export");
// } else {
// astType = new MemberType (new MemberType (new SimpleType ("MonoTouch"), "Foundation"), "Export");
// }
// return astType;
// }
//
// static IMember GetProtocolMember (RefactoringContext ctx, IType protocolType, IMember member)
// {
// foreach (var m in protocolType.GetMembers (m => m.SymbolKind == member.SymbolKind && m.Name == member.Name)) {
// if (!SignatureComparer.Ordinal.Equals (m, member))
// return null;
// var prop = m as IProperty;
// if (prop != null) {
// if (prop.CanGet && GenerateExportAttribute (ctx, prop.Getter) != null ||
// prop.CanSet && GenerateExportAttribute (ctx, prop.Setter) != null)
// return m;
// } else {
// if (GenerateExportAttribute (ctx, m) != null)
// return m;
// }
// }
// return null;
// }
//
static string GetProtocol (ISymbol member)
{
var attr = member.GetAttributes ().FirstOrDefault (a => a.AttributeClass.Name == "ExportAttribute" && ProtocolMemberContextHandler.IsFoundationNamespace (a.AttributeClass.ContainingNamespace));
if (attr == null || attr.ConstructorArguments.Length == 0)
return null;
return attr.ConstructorArguments.First ().Value.ToString ();
}
public static bool IsImplemented (ITypeSymbol type, ISymbol protocolMember)
{
foreach (var m in type.GetMembers().Where (m => m.Kind == protocolMember.Kind && m.Name == protocolMember.Name)) {
var p = m as IPropertySymbol;
if (p != null) {
if (p.GetMethod != null && ((IPropertySymbol)protocolMember).GetMethod != null && GetProtocol (p.GetMethod) == GetProtocol (((IPropertySymbol)protocolMember).GetMethod))
return true;
if (p.SetMethod != null && ((IPropertySymbol)protocolMember).SetMethod != null && GetProtocol (p.SetMethod) == GetProtocol (((IPropertySymbol)protocolMember).SetMethod))
return true;
continue;
}
if (GetProtocol (m) == GetProtocol (protocolMember))
return true;
}
return false;
}
class ExportMethods : AbstractGenerateAction
{
readonly BaseExportCodeGenerator cg;
public ExportMethods (BaseExportCodeGenerator cg, CodeGenerationOptions options) : base (options)
{
this.cg = cg;
}
protected override IEnumerable<object> GetValidMembers ()
{
var type = Options.EnclosingType;
if (type == null || Options.EnclosingMember != null)
yield break;
foreach (var t in type.GetBaseTypes ()) {
string name;
if (!ProtocolMemberContextHandler.HasProtocolAttribute (t, out name))
continue;
var protocolType = Options.CurrentState.Compilation.GetTypeByMetadataName (t.ContainingNamespace.GetFullName () + "." + name);
if (protocolType == null)
break;
foreach (var member in protocolType.GetMembers().OfType<IMethodSymbol>()) {
if (member.ExplicitInterfaceImplementations.Length > 0)
continue;
if (!cg.IsValidMember (member))
continue;
if (IsImplemented (type, member))
continue;
if (member.GetAttributes ().Any (a => a.AttributeClass.Name == "ExportAttribute" && ProtocolMemberContextHandler.IsFoundationNamespace (a.AttributeClass.ContainingNamespace)))
yield return member;
}
foreach (var member in protocolType.GetMembers().OfType<IPropertySymbol>()) {
if (member.ExplicitInterfaceImplementations.Length > 0)
continue;
if (!cg.IsValidMember (member))
continue;
if (IsImplemented (type, member))
continue;
if (member.GetMethod != null && member.GetMethod.GetAttributes ().Any (a => a.AttributeClass.Name == "ExportAttribute" && ProtocolMemberContextHandler.IsFoundationNamespace (a.AttributeClass.ContainingNamespace)) ||
member.SetMethod != null && member.SetMethod.GetAttributes ().Any (a => a.AttributeClass.Name == "ExportAttribute" && ProtocolMemberContextHandler.IsFoundationNamespace (a.AttributeClass.ContainingNamespace)))
yield return member;
}
}
}
protected override IEnumerable<string> GenerateCode (List<object> includedMembers)
{
foreach (ISymbol member in includedMembers) {
yield return CSharpCodeGenerator.CreateProtocolMemberImplementation (Options.DocumentContext, Options.Editor, Options.EnclosingType, Options.EnclosingPart.GetLocation (), member, false).Code;
}
}
}
}
class OptionalProtocolMemberGenerator : BaseExportCodeGenerator
{
public override string Text {
get {
return GettextCatalog.GetString ("Implement protocol members");
}
}
public override string GenerateDescription {
get {
return GettextCatalog.GetString ("Select protocol members to implement");
}
}
public override bool IsValidMember (ISymbol member)
{
return !member.IsAbstract;
}
}
class RequiredProtocolMemberGenerator : BaseExportCodeGenerator
{
public override string Text {
get {
return GettextCatalog.GetString ("Implement required protocol members");
}
}
public override string GenerateDescription {
get {
return GettextCatalog.GetString ("Select protocol members to implement");
}
}
public override bool IsValidMember (ISymbol member)
{
return member.IsAbstract;
}
}
}
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