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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Composition;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis.CSharp.LanguageService;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.EmbeddedLanguages.VirtualChars;
using Microsoft.CodeAnalysis.PooledObjects;
namespace Microsoft.CodeAnalysis.CSharp.ConvertBetweenRegularAndVerbatimString;
[ExportCodeRefactoringProvider(LanguageNames.CSharp, Name = PredefinedCodeRefactoringProviderNames.ConvertBetweenRegularAndVerbatimString), Shared]
[ExtensionOrder(Before = PredefinedCodeRefactoringProviderNames.ConvertToInterpolatedString)]
internal class ConvertBetweenRegularAndVerbatimStringCodeRefactoringProvider
: AbstractConvertBetweenRegularAndVerbatimStringCodeRefactoringProvider<LiteralExpressionSyntax>
{
[ImportingConstructor]
[SuppressMessage("RoslynDiagnosticsReliability", "RS0033:Importing constructor should be [Obsolete]", Justification = "Used in test code: https://github.com/dotnet/roslyn/issues/42814")]
public ConvertBetweenRegularAndVerbatimStringCodeRefactoringProvider()
{
}
protected override bool IsInterpolation { get; } = false;
protected override bool IsAppropriateLiteralKind(LiteralExpressionSyntax literalExpression)
=> literalExpression.Kind() == SyntaxKind.StringLiteralExpression;
protected override void AddSubStringTokens(LiteralExpressionSyntax literalExpression, ArrayBuilder<SyntaxToken> subStringTokens)
=> subStringTokens.Add(literalExpression.Token);
protected override bool IsVerbatim(LiteralExpressionSyntax literalExpression)
=> CSharpSyntaxFacts.Instance.IsVerbatimStringLiteral(literalExpression.Token);
protected override LiteralExpressionSyntax CreateVerbatimStringExpression(IVirtualCharService charService, StringBuilder sb, LiteralExpressionSyntax stringExpression)
{
sb.Append('@');
sb.Append(DoubleQuote);
AddVerbatimStringText(charService, sb, stringExpression.Token);
sb.Append(DoubleQuote);
return stringExpression.WithToken(CreateStringToken(sb));
}
protected override LiteralExpressionSyntax CreateRegularStringExpression(IVirtualCharService charService, StringBuilder sb, LiteralExpressionSyntax stringExpression)
{
sb.Append(DoubleQuote);
AddRegularStringText(charService, sb, stringExpression.Token);
sb.Append(DoubleQuote);
return stringExpression.WithToken(CreateStringToken(sb));
}
private static SyntaxToken CreateStringToken(StringBuilder sb)
=> SyntaxFactory.Token(
leading: default,
SyntaxKind.StringLiteralToken,
sb.ToString(), valueText: "",
trailing: default);
}
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