public object visitReturnStmt(Stmt.Return stmt)
{
object value = stmt.value == null ? null : Evaluate(stmt.value);
throw new ReturnException {
value = value
};
}
object Stmt.IVisitor <object> .visitReturnStmt(Stmt.Return stmt)
{
if (currentFunction == FunctionType.NONE)
{
Lox.ReportError(stmt.keyword, "Can only return from functions or methods.");
}
else if (stmt.value != null)
{
if (currentFunction == FunctionType.INITIALIZER)
{
Lox.ReportError(stmt.keyword, "Cannot return value from an initializer.");
}
else
{
Resolve(stmt.value);
}
}
return(null);
}