/// <summary>
/// Visits a block expression slim tree node, produces a block expression.
/// </summary>
/// <param name="node">Node to visit.</param>
/// <param name="variables">Variables in the block.</param>
/// <param name="expressions">Expression slims in the block.</param>
/// <returns>The block expression represented by the expression slim node.</returns>
protected override Expression MakeBlock(BlockExpressionSlim node, ReadOnlyCollection <ParameterExpression> variables, ReadOnlyCollection <Expression> expressions)
{
if (node.Type != null)
{
var type = MakeType(node.Type);
return(_factory.Block(type, variables, expressions));
}
else
{
return(_factory.Block(variables, expressions));
}
}
protected internal override ExpressionSlim VisitBlock(BlockExpressionSlim node)
{
// CONSIDER: Block can have a custom type which has been historically omitted here. We can consider adding it later.
Append("Block(");
Visit(", ", node.Variables);
if (node.Variables.Count > 0)
{
Append("; ");
}
Visit("; ", node.Expressions);
Append(')');
return(node);
}
/// <summary>
/// Visits a block expression tree node.
/// </summary>
/// <param name="node">Node to visit.</param>
/// <returns>Result of visiting the node.</returns>
protected internal virtual ExpressionSlim VisitBlock(BlockExpressionSlim node)
{
return(node.Update(VisitAndConvert(node.Variables), Visit(node.Expressions)));
}
