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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Ast/Expressions/ParenthesizedExpression.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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contrib/ICSharpCode.NRefactory.CSharp/Ast/Expressions/ParenthesizedExpression.cs
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// 
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// ParenthesizedExpression.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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namespace ICSharpCode.NRefactory.CSharp
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{
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        /// <summary>
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        /// ( Expression )
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        /// </summary>
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        public class ParenthesizedExpression : Expression
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        {
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                public CSharpTokenNode LParToken {
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                        get { return GetChildByRole (Roles.LPar); }
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                }
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                public Expression Expression {
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                        get { return GetChildByRole (Roles.Expression); }
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                        set { SetChildByRole (Roles.Expression, value); }
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                }
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                public CSharpTokenNode RParToken {
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                        get { return GetChildByRole (Roles.RPar); }
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                }
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                public ParenthesizedExpression()
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                {
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                }
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                public ParenthesizedExpression(Expression expr)
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                {
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                        Expression = expr;
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                }
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                public override void AcceptVisitor (IAstVisitor visitor)
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                {
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                        visitor.VisitParenthesizedExpression (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.VisitParenthesizedExpression (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.VisitParenthesizedExpression (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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                        ParenthesizedExpression o = other as ParenthesizedExpression;
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                        return o != null && this.Expression.DoMatch(o.Expression, match);
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                }
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                /// <summary>
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                /// Gets whether the expression acts like a parenthesized expression,
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                /// i.e. whether information about the expected type (for lambda type inference) flows
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                /// into the inner expression.
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                /// </summary>
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                /// <returns>Returns true for ParenthesizedExpression, CheckedExpression or UncheckedExpression; false otherwise.</returns>
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                public static bool ActsAsParenthesizedExpression(AstNode expression)
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                {
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                        return expression is ParenthesizedExpression || expression is CheckedExpression || expression is UncheckedExpression;
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                }
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                /// <summary>
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                /// Unpacks the given expression if it is a ParenthesizedExpression, CheckedExpression or UncheckedExpression.
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                /// </summary>
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                public static Expression UnpackParenthesizedExpression(Expression expr)
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                {
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                        while (ActsAsParenthesizedExpression(expr))
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                                expr = expr.GetChildByRole(Roles.Expression);
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                        return expr;
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                }
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        }
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}