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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Ast/Statements/BlockStatement.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/nrefactory/ICSharpCode.NRefactory.CSharp/Ast/Statements/BlockStatement.cs
 
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// 
 
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// BlockStatement.cs
 
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//
 
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// Author:
 
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//       Mike Krüger <mkrueger@novell.com>
 
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// 
 
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// Copyright (c) 2009 Novell, Inc (http://www.novell.com)
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System.Collections.Generic;
 
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namespace ICSharpCode.NRefactory.CSharp
 
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{
 
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        /// <summary>
 
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        /// { Statements }
 
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        /// </summary>
 
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        public class BlockStatement : Statement, IEnumerable<Statement>
 
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        {
 
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                public static readonly Role<Statement> StatementRole = new Role<Statement>("Statement", Statement.Null);
 
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                #region Null
 
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                public static readonly new BlockStatement Null = new NullBlockStatement ();
 
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                sealed class NullBlockStatement : BlockStatement
 
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                {
 
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                        public override bool IsNull {
 
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                                get {
 
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                                        return true;
 
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                                }
 
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                        }
 
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                        public override void AcceptVisitor (IAstVisitor visitor)
 
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                        {
 
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                        }
 
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                        public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                        {
 
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                                return default (T);
 
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                        }
 
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                        public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 
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                        {
 
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                                return default (S);
 
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                        }
 
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                        protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                        {
 
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                                return other == null || other.IsNull;
 
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                        }
 
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                }
 
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                #endregion
 
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                #region PatternPlaceholder
 
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                public static implicit operator BlockStatement(PatternMatching.Pattern pattern)
 
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                {
 
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                        return pattern != null ? new PatternPlaceholder(pattern) : null;
 
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                }
 
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                sealed class PatternPlaceholder : BlockStatement, PatternMatching.INode
 
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                {
 
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                        readonly PatternMatching.Pattern child;
 
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                        public PatternPlaceholder(PatternMatching.Pattern child)
 
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                        {
 
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                                this.child = child;
 
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                        }
 
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                        public override NodeType NodeType {
 
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                                get { return NodeType.Pattern; }
 
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                        }
 
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                        public override void AcceptVisitor (IAstVisitor visitor)
 
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                        {
 
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                                visitor.VisitPatternPlaceholder(this, child);
 
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                        }
 
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                        public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                        {
 
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                                return visitor.VisitPatternPlaceholder(this, child);
 
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                        }
 
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                        public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
 
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                        {
 
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                                return visitor.VisitPatternPlaceholder(this, child, data);
 
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                        }
 
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                        protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                        {
 
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                                return child.DoMatch(other, match);
 
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                        }
 
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                        bool PatternMatching.INode.DoMatchCollection(Role role, PatternMatching.INode pos, PatternMatching.Match match, PatternMatching.BacktrackingInfo backtrackingInfo)
 
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                        {
 
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                                return child.DoMatchCollection(role, pos, match, backtrackingInfo);
 
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                        }
 
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                }
 
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                #endregion
 
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                public CSharpTokenNode LBraceToken {
 
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                        get { return GetChildByRole (Roles.LBrace); }
 
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                }
 
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                public AstNodeCollection<Statement> Statements {
 
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                        get { return GetChildrenByRole (StatementRole); }
 
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                }
 
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                public CSharpTokenNode RBraceToken {
 
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                        get { return GetChildByRole (Roles.RBrace); }
 
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                }
 
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                public override void AcceptVisitor (IAstVisitor visitor)
 
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                {
 
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                        visitor.VisitBlockStatement (this);
 
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                }
 
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                public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                {
 
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                        return visitor.VisitBlockStatement (this);
 
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                }
 
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                public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 
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                {
 
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                        return visitor.VisitBlockStatement (this, data);
 
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                }
 
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                protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                {
 
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                        BlockStatement o = other as BlockStatement;
 
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                        return o != null && !o.IsNull && this.Statements.DoMatch(o.Statements, match);
 
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                }
 
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                public void Add(Statement statement)
 
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                {
 
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                        AddChild(statement, StatementRole);
 
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                }
 
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                public void Add(Expression expression)
 
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                {
 
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                        AddChild(new ExpressionStatement(expression), StatementRole);
 
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                }
 
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                IEnumerator<Statement> IEnumerable<Statement>.GetEnumerator()
 
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                {
 
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                        return this.Statements.GetEnumerator();
 
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                }
 
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                System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
 
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                {
 
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                        return this.Statements.GetEnumerator();
 
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                }
 
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        }
 
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}