private static async Task <Document> ApplyInlineSingleLineAsync(CodeFixContext context, InvocationExpressionSyntax invocation, CancellationToken cancellationToken)
{
var editor = await DocumentEditor.CreateAsync(context.Document, cancellationToken)
.ConfigureAwait(false);
var semanticModel = editor.SemanticModel;
var method = (IMethodSymbol)semanticModel.GetSymbolSafe(invocation.Expression, cancellationToken);
var methodDeclaration = (MethodDeclarationSyntax)method.DeclaringSyntaxReferences[0].GetSyntax(cancellationToken);
var expression = methodDeclaration.ExpressionBody?.Expression ??
((ReturnStatementSyntax)methodDeclaration.Body.Statements[0]).Expression;
if (invocation.ArgumentList?.Arguments.Count == 1 &&
semanticModel.GetSymbolSafe(invocation.ArgumentList.Arguments[0].Expression, cancellationToken) is IParameterSymbol parameter)
{
expression = Rename.Parameter(method.Parameters[0], parameter, expression, semanticModel, cancellationToken);
editor.ReplaceNode(
invocation,
expression.WithLeadingTrivia(invocation.Expression.GetLeadingTrivia()));
editor.RemoveNode(methodDeclaration);
return(editor.GetChangedDocument());
}
return(editor.OriginalDocument);
}
