[Cuis-dev] search path for packages

[ken.dickey at whidbey.com]

On 2024-06-20 17:39, Mark Volkmann via Cuis-dev wrote:

> I really do want to get better at following the code. But I'm not 
> seeing how you discovered the use of 
> FeatureRequirement>>placesToLookForPackagesDo:. Here are the steps I 
> followed:
> 
> - search for senders of "require:" and find it in the Feature class
> - look at that class method and find where the message "name:" is sent 
> to the FeatureRequirement class
> - look at that method and see that it sends the message 
> "name:minVersion:minRevision:maxVersion:" to itself
> - look at that method see that it creates an instance of the 
> FeatureRequirement class (with no initialize method) and sends it the 
> message "name:minVersion:minRevison:maxVersion:"
> - look at that method and see that all it does is set instance 
> variables
> 
> Why didn't I encounter a send of the "placesToLookForPackagesDo:" 
> message?

Different strategy.
- Selected `require:`
- CMD-M (or menu: implementors)
- Selecfed `FeatureRequirement` [worker class]
- CMD-B (menu: Browse)
- Browser shows findPackageFileAsReqOf:
- Selected this likely looking method and saw 
`placesToLookForPackagesDo:`
- Selected this and CMD-M (implementors)

Probably shorter:
- World Menu -> Open -> Message Names
- type `findpackage`  [just a likely guess]
- see method `findPackageFileAsReqOf:`
- note `placesToLookForPackagesDo:`

Alternate:
- In Workspace, type `Feature require: 'SVG'. ` [or whatever]
- CMD-D [menu: DoIt]
- Step into/through using the debugger [requires much more usage to get 
there]


> 
> On Thu, Jun 20, 2024 at 9:17 AM <ken.dickey at whidbey.com> wrote:
> 
>> On 2024-06-20 06:40, Mark Volkmann via Cuis-dev wrote:
>> 
>>> I'm confused about where "Feature require: 'SomeName'" searches for
>>> package files.
>> 
>> Use the Code, Luke.
>> 
>> Implementers of `require:` about 3 clicks..
>> 
>> FeatureRequirement>>placesToLookForPackagesDo:
>> 
>> The Code is your friend.  The IDE tools are your friends..
>> -KenD
> 
> --
> 
> R. Mark Volkmann
> Object Computing, Inc.