Value comparation rework #60

Nieuw probleem

Open

2019-11-02 17:31:48 +01:00 geopend door belliash · 1 comment

belliash reageerde

2019-11-02 17:31:48 +01:00

Eigenaar

The actual value comparation implemented by PH7 Engine is trying to imitate PHP behavior. First of all, NULL < -1, and NULL == 0. Sorting is thus nondeterministic. Secondly, objects compare as greater than anything else except other objects, which they are neither less than nor greater than. Finally, comparison operators try to sort arrays, two different ways: first by length, then by elements. If they have the same number of elements but different sets of keys, though, they are non comparable.

This needs comparation mechanism to be rewritten and fixed.

The actual value comparation implemented by PH7 Engine is trying to imitate PHP behavior. First of all, NULL < -1, and NULL == 0. Sorting is thus nondeterministic. Secondly, objects compare as greater than anything else except other objects, which they are neither less than nor greater than. Finally, comparison operators try to sort arrays, two different ways: first by length, then by elements. If they have the same number of elements but different sets of keys, though, they are non comparable. This needs comparation mechanism to be rewritten and fixed.

belliash voegde de

labels 2019-11-02 17:31:48 +01:00 toe

likoski reageerde

2019-11-03 14:16:36 +01:00

Eigenaar

We should not compare incompatible values in general.

We should not compare incompatible values in general.

Log in om deel te nemen aan deze discussie.

Geen label

Geen mijlpaal

Niet toegewezen

2 deelnemers

Notificaties

Vervaldatum

De deadline is ongeldig of buiten bereik. Gebruik het formaat 'jjjj-mm-dd'.

Geen vervaldatum ingesteld.

Afhankelijkheden

Geen afhankelijkheden ingesteld.

Referentie: aerscript/Aer#60

No description provided.