/NRefactory/ICSharpCode.NRefactory.CSharp/Ast/Statements/BlockStatement.cs
http://github.com/icsharpcode/ILSpy · C# · 164 lines · 110 code · 26 blank · 28 comment · 6 complexity · d49fa47cc347b5634c2bdad89e7d64d4 MD5 · raw file
- //
- // BlockStatement.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;
- namespace ICSharpCode.NRefactory.CSharp
- {
- /// <summary>
- /// { Statements }
- /// </summary>
- public class BlockStatement : Statement, IEnumerable<Statement>
- {
- public static readonly Role<Statement> StatementRole = new Role<Statement>("Statement", Statement.Null);
-
- #region Null
- public static readonly new BlockStatement Null = new NullBlockStatement ();
- sealed class NullBlockStatement : BlockStatement
- {
- 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 BlockStatement(PatternMatching.Pattern pattern)
- {
- return pattern != null ? new PatternPlaceholder(pattern) : null;
- }
-
- sealed class PatternPlaceholder : BlockStatement, 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 CSharpTokenNode LBraceToken {
- get { return GetChildByRole (Roles.LBrace); }
- }
-
- public AstNodeCollection<Statement> Statements {
- get { return GetChildrenByRole (StatementRole); }
- }
-
- public CSharpTokenNode RBraceToken {
- get { return GetChildByRole (Roles.RBrace); }
- }
-
- public override void AcceptVisitor (IAstVisitor visitor)
- {
- visitor.VisitBlockStatement (this);
- }
-
- public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
- {
- return visitor.VisitBlockStatement (this);
- }
-
- public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
- {
- return visitor.VisitBlockStatement (this, data);
- }
-
- protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
- {
- BlockStatement o = other as BlockStatement;
- return o != null && !o.IsNull && this.Statements.DoMatch(o.Statements, match);
- }
-
- public void Add(Statement statement)
- {
- AddChild(statement, StatementRole);
- }
-
- IEnumerator<Statement> IEnumerable<Statement>.GetEnumerator()
- {
- return this.Statements.GetEnumerator();
- }
-
- System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
- {
- return this.Statements.GetEnumerator();
- }
- }
- }