public override object Execute(NameEnv env)
{
foreach (IfStmtTest t in tests)
{
object val = t.test.Evaluate(env);
if (Ops.IsTrue(val))
{
return(t.body.Execute(env));
}
}
if (elseStmt != null)
{
return(elseStmt.Execute(env));
}
return(NextStmt);
}
public override object Execute(NameEnv env)
{
object ret = NextStmt;
while (Ops.IsTrue(test.Evaluate(env)))
{
ret = body.Execute(env);
if (ret != NextStmt)
{
break;
}
}
return(ret);
// if (else_ != null) {
// else_.exec(env);
// }
}
public override object Execute(NameEnv env)
{
object ret = Stmt.NextStmt;
IEnumerator i = Ops.GetEnumerator(list.Evaluate(env));
while (i.MoveNext())
{
lhs.Assign(i.Current, env);
ret = body.Execute(env);
if (ret != NextStmt)
{
return(ret);
}
}
return(ret);
// if (else_ != null) {
// else_.exec(env);
// }
}