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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;
using System.Composition;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CSharp.Formatting;
using Microsoft.CodeAnalysis.CSharp.LanguageService;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Formatting.Rules;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Operations;
using Microsoft.CodeAnalysis.Simplification;
using Microsoft.CodeAnalysis.UseConditionalExpression;
namespace Microsoft.CodeAnalysis.CSharp.UseConditionalExpression;
[ExportCodeFixProvider(LanguageNames.CSharp, Name = PredefinedCodeFixProviderNames.UseConditionalExpressionForAssignment), Shared]
[method: ImportingConstructor]
[method: Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
internal sealed class CSharpUseConditionalExpressionForAssignmentCodeFixProvider()
: AbstractUseConditionalExpressionForAssignmentCodeFixProvider<
StatementSyntax, IfStatementSyntax, LocalDeclarationStatementSyntax, VariableDeclaratorSyntax, ExpressionSyntax, ConditionalExpressionSyntax>
{
protected override ISyntaxFacts SyntaxFacts
=> CSharpSyntaxFacts.Instance;
protected override AbstractFormattingRule GetMultiLineFormattingRule()
=> MultiLineConditionalExpressionFormattingRule.Instance;
protected override VariableDeclaratorSyntax WithInitializer(VariableDeclaratorSyntax variable, ExpressionSyntax value)
=> variable.WithInitializer(SyntaxFactory.EqualsValueClause(value));
protected override VariableDeclaratorSyntax GetDeclaratorSyntax(IVariableDeclaratorOperation declarator)
=> (VariableDeclaratorSyntax)declarator.Syntax;
protected override LocalDeclarationStatementSyntax AddSimplificationToType(LocalDeclarationStatementSyntax statement)
=> statement.WithDeclaration(statement.Declaration.WithType(
statement.Declaration.Type.WithAdditionalAnnotations(Simplifier.Annotation)));
protected override StatementSyntax WrapWithBlockIfAppropriate(
IfStatementSyntax ifStatement, StatementSyntax statement)
{
if (ifStatement.Parent is ElseClauseSyntax &&
ifStatement.Statement is BlockSyntax block)
{
return block.WithStatements([statement])
.WithAdditionalAnnotations(Formatter.Annotation);
}
return statement;
}
protected override ExpressionSyntax ConvertToExpression(IThrowOperation throwOperation)
=> CSharpUseConditionalExpressionHelpers.ConvertToExpression(throwOperation);
protected override ISyntaxFormatting SyntaxFormatting
=> CSharpSyntaxFormatting.Instance;
}
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