RCS9001.md

RCS9001: Use pattern matching

Property	Value
Id	RCS9001
Severity	Hidden

Examples

Code with Diagnostic

if (syntaxNode.IsKind(SyntaxKind.IdentifierName)) // RCS9001
{
    var identifierName = (IdentifierNameSyntax)syntaxNode;
}

Code with Fix

if (syntaxNode is IdentifierNameSyntax identifierName)
{
}

---

Code with Diagnostic

if (!syntaxNode.IsKind(SyntaxKind.IdentifierName)) // RCS9001
{
    return;
}

var identifierName = (IdentifierNameSyntax)syntaxNode;

Code with Fix

if (!(syntaxNode is IdentifierNameSyntax identifierName))
{
  return;
}

Applies to

• Roslynator.CodeAnalysis.Analyzers

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