/NRefactory/ICSharpCode.NRefactory.CSharp/Ast/ErrorNode.cs

http://github.com/icsharpcode/ILSpy · C# · 88 lines · 47 code · 11 blank · 30 comment · 1 complexity · a29fa2a7c705e7c7f0ab92f23df0095f MD5 · raw file

  1. //
  2. // ErrorNode.cs
  3. //
  4. // Author:
  5. // Mike Krüger <mkrueger@novell.com>
  6. //
  7. // Copyright (c) 2011 Xamarin (http://www.xamarin.com);
  8. //
  9. // Permission is hereby granted, free of charge, to any person obtaining a copy
  10. // of this software and associated documentation files (the "Software"), to deal
  11. // in the Software without restriction, including without limitation the rights
  12. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13. // copies of the Software, and to permit persons to whom the Software is
  14. // furnished to do so, subject to the following conditions:
  15. //
  16. // The above copyright notice and this permission notice shall be included in
  17. // all copies or substantial portions of the Software.
  18. //
  19. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25. // THE SOFTWARE.
  26. using System;
  27. namespace ICSharpCode.NRefactory.CSharp
  28. {
  29. /// <summary>
  30. /// Represents a parsing error in the ast. At the moment it only represents missing closing bracket.
  31. /// This closing bracket is replaced by a node at the highest possible position.
  32. /// (To make GetAstNodeAt (line, col) working).
  33. /// </summary>
  34. public class ErrorNode : AstNode
  35. {
  36. static TextLocation maxLoc = new TextLocation (int.MaxValue, int.MaxValue);
  37. public override NodeType NodeType {
  38. get {
  39. return NodeType.Unknown;
  40. }
  41. }
  42. public override TextLocation StartLocation {
  43. get {
  44. return maxLoc;
  45. }
  46. }
  47. public override TextLocation EndLocation {
  48. get {
  49. return maxLoc;
  50. }
  51. }
  52. public ErrorNode ()
  53. {
  54. }
  55. public override void AcceptVisitor(IAstVisitor visitor)
  56. {
  57. visitor.VisitErrorNode(this);
  58. }
  59. public override T AcceptVisitor<T>(IAstVisitor<T> visitor)
  60. {
  61. return visitor.VisitErrorNode(this);
  62. }
  63. public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
  64. {
  65. return visitor.VisitErrorNode(this, data);
  66. }
  67. protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
  68. {
  69. var o = other as ErrorNode;
  70. return o != null;
  71. }
  72. public override string ToString(CSharpFormattingOptions formattingOptions)
  73. {
  74. return "[ErrorNode]";
  75. }
  76. }
  77. }