[Pas2js] Compiler Options as Hints in Pas sources?

[Michael Van Canneyt]

Hi,

I had a quick look to see how this should be implemented, with the idea to
take some of the load off you. It turns out to be a little more complicated
than simply parsing the flag :)

Since this would be a local switch, this requires quite some changes, as the
units or identifiers need to be tagged. Maybe a simple solution would be to
keep a local flag in TPas2JSCompilerFile and mark all the identifiers simply 
as used while parsing when in RemoveNotUsedDeclarations. So

function TPas2jsCompilerFile.OnConverterIsElementUsed(Sender: TObject;
   El: TPasElement): boolean;

begin
   if Not LocalRemoveNotUsedDeclarationsFlag then
      Result:=False
   else
     // The rest.
end;

What do you think ?

Michael.

On Fri, 21 Dec 2018, Mattias Gaertner via Pas2js wrote:

> On Fri, 21 Dec 2018 12:42:51 +0300
> Sergei Vertiev <vertiev at gmail.com> wrote:
>
>> Hello, Michael.
>> Thanks for your replay.
>> 
>> I afraid that In case of "-O-" option, which i can set only
>> for all project files, resulting JS code will be too large.
>> I don't know how to set this option individually for one file in
>> project. Just using compilation via bat file - that is not convenient.
>
> That is what Michael meant. The 
> {$optimization RemoveNotUsedDeclarations-}
> is not yet implemented.
>
> Mattias
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