protected virtual TResult Transform(Expression expression)
{
return(expression switch
{
CallExpression call => Transform(call),
ConstantExpression constant => Transform(constant),
AccessorExpression accessor => Transform(accessor),
AmbientPropertyExpression property => Transform(property),
LambdaExpression lambda => Transform(lambda),
ParameterExpression parameter => Transform(parameter),
IndexerWildcardExpression wildcard => Transform(wildcard),
ArrayExpression array => Transform(array),
ObjectExpression obj => Transform(obj),
IndexerExpression indexer => Transform(indexer),
IndexOfMatchExpression match => Transform(match),
null => throw new ArgumentNullException(nameof(expression)),
// Non-exhaustive because `InternalsVisibleTo` is applied to the assembly.
_ => throw new NotSupportedException($"{expression} is not supported.")
});
protected override Expression Transform(IndexerWildcardExpression wx)
{
return(wx);
}
protected override ExpressionBody Transform(IndexerWildcardExpression wx)
{
return(LX.Constant(null, typeof(LogEventPropertyValue)));
}
protected override IndexerExpression?Transform(IndexerWildcardExpression wx)
{
// Must be within an indexer
return(null);
}
