public override void Initialize(AnalysisContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
base.Initialize(context);
context.RegisterSyntaxNodeAction(
f => AddParenthesesAccordingToOperatorPrecedenceRefactoring.AnalyzeBinaryExpression(f),
SyntaxKind.MultiplyExpression,
SyntaxKind.DivideExpression,
SyntaxKind.ModuloExpression,
SyntaxKind.AddExpression,
SyntaxKind.SubtractExpression,
SyntaxKind.LeftShiftExpression,
SyntaxKind.RightShiftExpression,
SyntaxKind.LessThanExpression,
SyntaxKind.GreaterThanExpression,
SyntaxKind.LessThanOrEqualExpression,
SyntaxKind.GreaterThanOrEqualExpression,
SyntaxKind.EqualsExpression,
SyntaxKind.NotEqualsExpression,
SyntaxKind.BitwiseAndExpression,
SyntaxKind.ExclusiveOrExpression,
SyntaxKind.BitwiseOrExpression,
SyntaxKind.LogicalAndExpression,
SyntaxKind.LogicalOrExpression);
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out ExpressionSyntax expression, predicate: f => f.IsKind(SyntaxKind.ConditionalExpression) || f is BinaryExpressionSyntax))
{
return;
}
CodeAction codeAction = CodeAction.Create(
$"Parenthesize '{expression}'",
cancellationToken => AddParenthesesAccordingToOperatorPrecedenceRefactoring.RefactorAsync(context.Document, expression, cancellationToken),
GetEquivalenceKey(DiagnosticIdentifiers.AddParenthesesAccordingToOperatorPrecedence));
context.RegisterCodeFix(codeAction, context.Diagnostics);
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
var expression = (ExpressionSyntax)root
.FindNode(context.Span, getInnermostNodeForTie: true)?
.FirstAncestorOrSelf(f => f.IsKind(SyntaxKind.ConditionalExpression) || f is BinaryExpressionSyntax);
Debug.Assert(expression != null, $"{nameof(expression)} is null");
if (expression == null)
{
return;
}
CodeAction codeAction = CodeAction.Create(
$"Parenthesize '{expression}'",
cancellationToken => AddParenthesesAccordingToOperatorPrecedenceRefactoring.RefactorAsync(context.Document, expression, cancellationToken),
DiagnosticIdentifiers.AddParenthesesAccordingToOperatorPrecedence + EquivalenceKeySuffix);
context.RegisterCodeFix(codeAction, context.Diagnostics);
}
private void AnalyzeBinaryExpression(SyntaxNodeAnalysisContext context)
{
var binaryExpression = (BinaryExpressionSyntax)context.Node;
AddParenthesesAccordingToOperatorPrecedenceRefactoring.Analyze(context, binaryExpression);
}
