private static void ConvertStringEmptyToEmptyStringLiteral(CodeRefactoringContext context, MemberAccessExpressionSyntax memberAccess, SemanticModel semanticModel)
{
if (StringEmptyRefactoring.CanConvertStringEmptyToEmptyStringLiteral(memberAccess, semanticModel, context.CancellationToken))
{
context.RegisterRefactoring(
"Convert to \"\"",
cancellationToken =>
{
return(StringEmptyRefactoring.ConvertStringEmptyToEmptyStringLiteralAsync(
context.Document,
memberAccess,
cancellationToken));
});
}
else
{
memberAccess = (MemberAccessExpressionSyntax)memberAccess
.FirstAncestor(SyntaxKind.SimpleMemberAccessExpression);
if (memberAccess != null)
{
ConvertStringEmptyToEmptyStringLiteral(context, memberAccess, semanticModel);
}
}
}
private void AnalyzeSimpleMemberAccessExpression(SyntaxNodeAnalysisContext context)
{
if (GeneratedCodeAnalyzer?.IsGeneratedCode(context) == true)
{
return;
}
var memberAccess = (MemberAccessExpressionSyntax)context.Node;
AnalyzePredefinedType(context, memberAccess);
if (StringEmptyRefactoring.CanConvertStringEmptyToEmptyStringLiteral(memberAccess, context.SemanticModel, context.CancellationToken))
{
context.ReportDiagnostic(
DiagnosticDescriptors.AvoidUsageOfStringEmpty,
memberAccess.GetLocation());
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context
.Document
.GetSyntaxRootAsync(context.CancellationToken)
.ConfigureAwait(false);
MemberAccessExpressionSyntax memberAccess = root
.FindNode(context.Span, getInnermostNodeForTie: true)?
.FirstAncestorOrSelf <MemberAccessExpressionSyntax>();
CodeAction codeAction = CodeAction.Create(
"Convert to \"\"",
cancellationToken =>
{
return(StringEmptyRefactoring.ConvertStringEmptyToEmptyStringLiteralAsync(
context.Document,
memberAccess,
cancellationToken));
},
DiagnosticIdentifiers.AvoidUsageOfStringEmpty + EquivalenceKeySuffix);
context.RegisterCodeFix(codeAction, context.Diagnostics);
}