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+// Copyright (c) 2011 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.Linq;
+using ICSharpCode.NRefactory.CSharp;
+using ICSharpCode.NRefactory.PatternMatching;
+
+namespace ICSharpCode.Decompiler.Ast
+{
+ /// <summary>
+ /// Allows storing comments inside IEnumerable{Statement}. Used in the AstMethodBuilder.
+ /// CommentStatement nodes are replaced with regular comments later on.
+ /// </summary>
+ internal class CommentStatement : Statement
+ {
+ string comment;
+
+ public CommentStatement(string comment)
+ {
+ if (comment == null)
+ throw new ArgumentNullException("comment");
+ this.comment = comment;
+ }
+
+ public override void AcceptVisitor(IAstVisitor visitor)
+ {
+ }
+
+ public override T AcceptVisitor<T>(IAstVisitor<T> visitor)
+ {
+ return default(T);
+ }
+
+ public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
+ {
+ return default(S);
+ }
+
+ public static void ReplaceAll(AstNode tree)
+ {
+ foreach (var cs in tree.Descendants.OfType<CommentStatement>()) {
+ cs.Parent.InsertChildBefore(cs, new Comment(cs.comment), Roles.Comment);
+ cs.Remove();
+ }
+ }
+
+ protected override bool DoMatch(AstNode other, Match match)
+ {
+ CommentStatement o = other as CommentStatement;
+ return o != null && MatchString(comment, o.comment);
+ }
+ }
+}