public Action Compile (Statement statement)
{
if (statement is ExpressionStatement) {
var s = statement as ExpressionStatement;
var result = Compile (s.Expression);
return () =>
{
if (s.Location != null && s.Location.Region != null)
s.Location.Region.SetResult (result ().ToString ());
};
}
if (statement is StatementBlock) {
var block = statement as StatementBlock;
var actions = block.Children.Select (s => Compile (s)).ToList ();
return () =>
{
foreach (var action in actions) {
action ();
}
};
}
if (statement is AssignmentVariable) {
var s = statement as AssignmentVariable;
var result = Compile (s.Expression);
return () =>
{
CurrentScope.SetVariable (s.Id, result ());
};
}
if (statement is AssignmentFunction) {
var s = statement as AssignmentFunction;
var result = Compile (s.Body);
return () =>
{
var index = functions.FindIndex (f => f.Id == s.Id);
var function = new FunctionSignature () {Id = s.Id, Parameters = s.Parameters, Body = result };
if (index != -1)
functions [index] = function;
else
functions.Add (function);
};
}
return null;
}
public void Add (Statement statement)
{
children.Add (statement);
statement.Parent = this;
}