internal static bool IsChecked(IParameterSymbol parameter, SyntaxNode scope, SemanticModel semanticModel, CancellationToken cancellationToken)
{
if (parameter == null ||
scope == null)
{
return(false);
}
using (var walker = NullCheckWalker.Borrow(scope))
{
return(walker.TryGetFirst(parameter, semanticModel, cancellationToken, out _));
}
}
internal static bool IsCheckedBefore(IParameterSymbol parameter, SyntaxNode scope, SemanticModel semanticModel, CancellationToken cancellationToken)
{
if (parameter == null ||
scope == null)
{
return(false);
}
using (var walker = NullCheckWalker.Borrow(scope.FirstAncestorOrSelf <MemberDeclarationSyntax>()))
{
return(walker.TryGetFirst(parameter, semanticModel, cancellationToken, out var check) &&
check.IsBeforeInScope(scope) == Result.Yes);
}
}
