override TExpression VisitBlock(BlockExpressionAlias node)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
var v = VisitAndConvert <ParameterExpressionAlias, TParameterExpression>(node.Variables);
var e = Visit(node.Expressions);
return(MakeBlock(node, v, e));
}
/// <summary> /// Makes an expression representing a BlockExpression with the given children. /// </summary> /// <param name="node">Original expression.</param> /// <param name="variables">Variables in the block.</param> /// <param name="expressions">Expressions in the block.</param> /// <returns>Representation of the original expression.</returns> protected abstract TExpression MakeBlock(BlockExpressionAlias node, ReadOnlyCollection <TParameterExpression> variables, ReadOnlyCollection <TExpression> expressions);