[Pas2js] array using enums

[Mattias Gaertner]

On Wed, 14 Feb 2018 11:01:21 -0600 (CST)
warleyalex via Pas2js <pas2js at lists.freepascal.org> wrote:

> Can you confirm: Array using Enums is not supported yet.
> 
> //------------
> type
>    TCars  = (Ford, Vauxhall, GM, Nissan, Toyota, Honda);
> 
> var
>    cars    : array[TCars] of string;          // Range is 0..5
>    //japCars : array[Nissan..Honda] of string;  // Range is 3..5 --> not
> allowed in pas2js

Anonymous range as array range was not yet supported. It is now in
trunk.
Note that named enum range worked:

type
  TjapCars: Nissan..Honda;
var
  japCarsNames : array[TjapCars] of string;

I don't understand the below code, since there are two japCars. Is
there a bug?

> // We must use the appropriate enumeration value to index our arrays:
>   japCars[Ord(TCars.Nissan)] := 'Bluebird';   // Allowed
>   japCars[Nissan] := 'Bluebird';   // Allowed  // not allowed
> 
>   japCars[Ord(TCars.Toyota)] := 'Galaxy';     // Allowed in pas2js
>   japCars[Toyota] := 'Galaxy';     // not allowed in pas2js
> 
>   japCars[4]      := 'Corolla';    // allowed in pas2js
> // japCars[4]      := 'Corolla';    // Not allowed in delphi
> 
>   japCars[Ord(TCars.Ford)]   := 'Galaxy';     // allowed in pas2js
>   japCars[Ford]   := 'Galaxy';     // Not allowed in delphi
> 
>   WriteLn(japCars[Nissan]);  // not alowed in pas2js
>   WriteLn(japCars[Toyota]); // not alowed in pas2js
> 
>   WriteLn(japCars[3]);  // allowed in pas2js
>   WriteLn(japCars[4]); // allowed in pas2js
> 
>   WriteLn(japCars[Ord(TCars.Nissan)]);   // allowed in pas2js
>   WriteLn(japCars[Ord(TCars.Toyota)]); // allowed in pas2js

Mattias