public Expression <FunctionComponent> BuildRendererExpression()
{
var context = new ComponentBuilderContext(this);
var element = null as ElementBuilder;
try
{
// build element to be rendered
element = Render(context);
}
catch (Exception e)
{
context.OnException(e);
}
context.ThrowExceptions();
var body = new List <Expression>();
// declare and initialize variables step
var variables = context.Variables.OrderBy(x => x.Key).Select(x => x.Value).ToArray();
foreach (var variable in variables)
{
body.Add(Expression.Assign(variable.Name, variable.Value));
}
// return rendered element step
body.Add(element?.GetValue(context) ?? Expression.Constant(null, typeof(ofElement)));
return(Expression.Lambda <FunctionComponent>(Expression.Block(variables.Select(v => v.Name), body), context.Node));
}
