/NRefactory/ICSharpCode.NRefactory.CSharp/Ast/Statements/TryCatchStatement.cs
http://github.com/icsharpcode/ILSpy · C# · 241 lines · 171 code · 39 blank · 31 comment · 12 complexity · 5d7d6f1f08690f8b4455fb1253506e39 MD5 · raw file
- //
- // TryCatchStatement.cs
- //
- // Author:
- // Mike Krüger <mkrueger@novell.com>
- //
- // Copyright (c) 2009 Novell, Inc (http://www.novell.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 System.Collections.Generic;
- using System.Linq;
- namespace ICSharpCode.NRefactory.CSharp
- {
- /// <summary>
- /// try TryBlock CatchClauses finally FinallyBlock
- /// </summary>
- public class TryCatchStatement : Statement
- {
- public static readonly TokenRole TryKeywordRole = new TokenRole ("try");
- public static readonly Role<BlockStatement> TryBlockRole = new Role<BlockStatement>("TryBlock", BlockStatement.Null);
- public static readonly Role<CatchClause> CatchClauseRole = new Role<CatchClause>("CatchClause", CatchClause.Null);
- public static readonly TokenRole FinallyKeywordRole = new TokenRole ("finally");
- public static readonly Role<BlockStatement> FinallyBlockRole = new Role<BlockStatement>("FinallyBlock", BlockStatement.Null);
-
- public CSharpTokenNode TryToken {
- get { return GetChildByRole (TryKeywordRole); }
- }
-
- public BlockStatement TryBlock {
- get { return GetChildByRole (TryBlockRole); }
- set { SetChildByRole (TryBlockRole, value); }
- }
-
- public AstNodeCollection<CatchClause> CatchClauses {
- get { return GetChildrenByRole (CatchClauseRole); }
- }
-
- public CSharpTokenNode FinallyToken {
- get { return GetChildByRole (FinallyKeywordRole); }
- }
-
- public BlockStatement FinallyBlock {
- get { return GetChildByRole (FinallyBlockRole); }
- set { SetChildByRole (FinallyBlockRole, value); }
- }
-
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitTryCatchStatement (this);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitTryCatchStatement (this);
- }
-
- public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitTryCatchStatement (this, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- TryCatchStatement o = other as TryCatchStatement;
- return o != null && this.TryBlock.DoMatch(o.TryBlock, match) && this.CatchClauses.DoMatch(o.CatchClauses, match) && this.FinallyBlock.DoMatch(o.FinallyBlock, match);
- }
- }
-
- /// <summary>
- /// catch (Type VariableName) { Body }
- /// </summary>
- public class CatchClause : AstNode
- {
- public static readonly TokenRole CatchKeywordRole = new TokenRole ("catch");
- #region Null
- public new static readonly CatchClause Null = new NullCatchClause ();
-
- sealed class NullCatchClause : CatchClause
- {
- public override bool IsNull {
- get {
- return true;
- }
- }
-
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitNullNode(this);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitNullNode(this);
- }
-
- public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitNullNode(this, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- return other == null || other.IsNull;
- }
- }
- #endregion
- #region PatternPlaceholder
- public static implicit operator CatchClause(PatternMatching.Pattern pattern)
- {
- return pattern != null ? new PatternPlaceholder(pattern) : null;
- }
-
- sealed class PatternPlaceholder : CatchClause, PatternMatching.INode
- {
- readonly PatternMatching.Pattern child;
-
- public PatternPlaceholder(PatternMatching.Pattern child)
- {
- this.child = child;
- }
-
- public override NodeType NodeType {
- get { return NodeType.Pattern; }
- }
-
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitPatternPlaceholder(this, child);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitPatternPlaceholder(this, child);
- }
- public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitPatternPlaceholder(this, child, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- return child.DoMatch(other, match);
- }
-
- bool PatternMatching.INode.DoMatchCollection(Role role, PatternMatching.INode pos, PatternMatching.Match match, PatternMatching.BacktrackingInfo backtrackingInfo)
- {
- return child.DoMatchCollection(role, pos, match, backtrackingInfo);
- }
- }
- #endregion
-
- public override NodeType NodeType {
- get {
- return NodeType.Unknown;
- }
- }
-
- public CSharpTokenNode CatchToken {
- get { return GetChildByRole (CatchKeywordRole); }
- }
-
- public CSharpTokenNode LParToken {
- get { return GetChildByRole (Roles.LPar); }
- }
-
- public AstType Type {
- get { return GetChildByRole (Roles.Type); }
- set { SetChildByRole (Roles.Type, value); }
- }
-
- public string VariableName {
- get { return GetChildByRole (Roles.Identifier).Name; }
- set {
- if (string.IsNullOrEmpty(value))
- SetChildByRole (Roles.Identifier, null);
- else
- SetChildByRole (Roles.Identifier, Identifier.Create (value));
- }
- }
-
- public Identifier VariableNameToken {
- get {
- return GetChildByRole (Roles.Identifier);
- }
- set {
- SetChildByRole(Roles.Identifier, value);
- }
- }
-
- public CSharpTokenNode RParToken {
- get { return GetChildByRole (Roles.RPar); }
- }
-
- public BlockStatement Body {
- get { return GetChildByRole (Roles.Body); }
- set { SetChildByRole (Roles.Body, value); }
- }
-
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitCatchClause (this);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitCatchClause (this);
- }
-
- public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitCatchClause (this, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- CatchClause o = other as CatchClause;
- return o != null && this.Type.DoMatch(o.Type, match) && MatchString(this.VariableName, o.VariableName) && this.Body.DoMatch(o.Body, match);
- }
- }
- }