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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/JoinStringAction.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/Refactoring/CodeActions/JoinStringAction.cs
 
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// 
 
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// JoinStringAction.cs
 
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// 
 
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// Author:
 
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//      Mansheng Yang <lightyang0@gmail.com>
 
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// 
 
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// Copyright (c) 2012 Mansheng Yang <lightyang0@gmail.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.Refactoring
 
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{
 
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        [ContextAction ("Join string literal", Description = "Join string literals.")]
 
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        public class JoinStringAction : SpecializedCodeAction<BinaryOperatorExpression>
 
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        {
 
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                protected override CodeAction GetAction (RefactoringContext context, BinaryOperatorExpression node)
 
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                {
 
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                        if (node.Operator != BinaryOperatorType.Add)
 
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                                return null;
 
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                        PrimitiveExpression left;
 
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                        var leftBinaryOperatorExpr = node.Left as BinaryOperatorExpression;
 
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                        if (leftBinaryOperatorExpr != null && leftBinaryOperatorExpr.Operator == BinaryOperatorType.Add) {
 
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                                left = leftBinaryOperatorExpr.Right as PrimitiveExpression;
 
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                        } else {
 
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                                left = node.Left as PrimitiveExpression;
 
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                        }
 
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                        var right = node.Right as PrimitiveExpression;
 
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                        if (left == null || right == null ||
 
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                                !(left.Value is string) || !(right.Value is string) || !node.OperatorToken.Contains(context.Location))
 
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                                return null;
 
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                        var isLeftVerbatim = left.LiteralValue.StartsWith("@", System.StringComparison.Ordinal);
 
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                        var isRightVerbatime = right.LiteralValue.StartsWith("@", System.StringComparison.Ordinal);
 
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                        if (isLeftVerbatim != isRightVerbatime)
 
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                                return null;
 
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                        return new CodeAction (context.TranslateString ("Join strings"), script => {
 
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                                var start = context.GetOffset (left.EndLocation) - 1;
 
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                                var end = context.GetOffset (right.StartLocation) + (isLeftVerbatim ? 2 : 1);
 
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                                script.RemoveText (start, end - start);
 
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                        }, node.OperatorToken);
 
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                }
 
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        }
 
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}