public Field Invoke(Runner runner, Node node)
{
try {
runner.PushContext();
for (int i = 0, l = Math.Min(arguments.Count, node.Count); i < l; i++)
{
runner.SetField(
runner.Eval(arguments[i]).StringValue,
runner.Eval(node[i]));
}
return(runner.Eval(body));
} finally {
runner.PopContext();
}
}
public static Field SetValue(Runner runner, Node block)
{
if (block.Count < 2)
{
throw new ArgumentException();
}
var tag = Convert.ToString(block[0]);
if (block.Count == 2)
{
return(runner.SetField(tag, runner.Eval(block[1])));
}
Field field = runner.GetFieldOrInit(tag, FieldType.Object);
for (int i = 1, l = block.Count - 2; i < l; i++)
{
field = field.GetAndEnsureType(runner.Eval(block[i]), FieldType.Object);
}
return(field[runner.Eval(block[block.Count - 2])] =
runner.Eval(block[block.Count - 1]));
}
