public override void Initialize(AnalysisContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
base.Initialize(context);
context.RegisterSyntaxNodeAction(
f => RemoveRedundantFieldInitializationRefactoring.AnalyzeFieldDeclaration(f),
SyntaxKind.FieldDeclaration);
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
VariableDeclaratorSyntax declarator = root
.FindNode(context.Span, getInnermostNodeForTie: true)?
.FirstAncestorOrSelf <VariableDeclaratorSyntax>();
Debug.Assert(declarator != null, $"{nameof(declarator)} is null");
if (declarator == null)
{
return;
}
foreach (Diagnostic diagnostic in context.Diagnostics)
{
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.MergeLocalDeclarationWithAssignment:
{
CodeAction codeAction = CodeAction.Create(
"Merge local declaration with assignment",
cancellationToken => MergeLocalDeclarationWithAssignmentRefactoring.RefactorAsync(context.Document, declarator, cancellationToken),
diagnostic.Id + EquivalenceKeySuffix);
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveRedundantFieldInitialization:
{
CodeAction codeAction = CodeAction.Create(
"Remove redundant field initialization",
cancellationToken => RemoveRedundantFieldInitializationRefactoring.RefactorAsync(context.Document, declarator, cancellationToken),
diagnostic.Id + EquivalenceKeySuffix);
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.Document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false);
EqualsValueClauseSyntax equalsValueClause = root
.FindNode(context.Span, getInnermostNodeForTie: true)?
.FirstAncestorOrSelf <EqualsValueClauseSyntax>();
Debug.Assert(equalsValueClause != null, $"{nameof(equalsValueClause)} is null");
if (equalsValueClause == null)
{
return;
}
CodeAction codeAction = CodeAction.Create(
"Remove redundant field initialization",
cancellationToken => RemoveRedundantFieldInitializationRefactoring.RefactorAsync(context.Document, equalsValueClause, cancellationToken),
DiagnosticIdentifiers.RemoveRedundantFieldInitialization + EquivalenceKeySuffix);
context.RegisterCodeFix(codeAction, context.Diagnostics);
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out VariableDeclaratorSyntax declarator))
{
return;
}
foreach (Diagnostic diagnostic in context.Diagnostics)
{
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.MergeLocalDeclarationWithAssignment:
{
CodeAction codeAction = CodeAction.Create(
"Merge local declaration with assignment",
cancellationToken => MergeLocalDeclarationWithAssignmentRefactoring.RefactorAsync(context.Document, declarator, cancellationToken),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case DiagnosticIdentifiers.RemoveRedundantFieldInitialization:
{
CodeAction codeAction = CodeAction.Create(
"Remove redundant field initialization",
cancellationToken => RemoveRedundantFieldInitializationRefactoring.RefactorAsync(context.Document, declarator, cancellationToken),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
}
private void AnalyzeFieldDeclaration(SyntaxNodeAnalysisContext context)
{
var fieldDeclaration = (FieldDeclarationSyntax)context.Node;
RemoveRedundantFieldInitializationRefactoring.Analyze(context, fieldDeclaration);
}
