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58 lines
2.6 KiB
58 lines
2.6 KiB
// |
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// ConvertAsToCastAction.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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/// <summary> |
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/// Converts an 'as' expression to a cast expression |
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/// </summary> |
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[ContextAction("Convert 'as' to cast.", Description = "Convert 'as' to cast.")] |
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public class ConvertAsToCastAction : SpecializedCodeAction <AsExpression> |
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{ |
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static InsertParenthesesVisitor insertParentheses = new InsertParenthesesVisitor (); |
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protected override CodeAction GetAction (RefactoringContext context, AsExpression node) |
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{ |
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if (!node.AsToken.Contains (context.Location)) |
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return null; |
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return new CodeAction (context.TranslateString ("Convert 'as' to cast"), script => { |
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var castExpr = new CastExpression (node.Type.Clone (), node.Expression.Clone ()); |
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var parenthesizedExpr = node.Parent as ParenthesizedExpression; |
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if (parenthesizedExpr != null && parenthesizedExpr.Parent is Expression) { |
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// clone parent expression and replace the ParenthesizedExpression with castExpr to remove |
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// parentheses, then insert parentheses if necessary |
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var parentExpr = (Expression)parenthesizedExpr.Parent.Clone (); |
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parentExpr.GetNodeContaining (parenthesizedExpr.StartLocation, parenthesizedExpr.EndLocation) |
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.ReplaceWith (castExpr); |
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parentExpr.AcceptVisitor (insertParentheses); |
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script.Replace (parenthesizedExpr.Parent, parentExpr); |
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} else { |
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castExpr.AcceptVisitor (insertParentheses); |
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script.Replace (node, castExpr); |
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} |
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}); |
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} |
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} |
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}
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