public DLR.Expression <Func <Rila, dynamic> > ConstructProgram(Rila runtime)
{
var scope = new GenScopeRoot(runtime);
var stmts = new DLR.Expression[Statements.Count];
for (int i = 0; i < Statements.Count; i++)
{
stmts[i] = Statements.ElementAt(i).GenerateExpressionTree(scope);
}
//Set the variables defined at the top level
var globals = scope.Definitions.Select(x => x.Value);
var block = DLR.Expression.Block(globals, stmts);
if (block.Type == typeof(void)) //Program should always return a value
{
block = DLR.Expression.Block(block, DLR.Expression.Default(typeof(object)));
}
return(DLR.Expression.Lambda <Func <Rila, dynamic> >(block, scope.Root.RuntimeParameter));
}