Android Question Source code preprocessor to strip conditional code?

Alessandro71 · May 10, 2025

Scenario:
an app manages different customers using symbols like

B4X:

#if CUSTOMER1
customer-specific code
#end if
#if CUSTOMER2
customer-specific code
#end if

now, customer 1 requests source code of the app.
you can’t just send the whole source code, because it will expose customer 2 specific code, which is private to each customer.

is there a simple way to process all source files and remove CUSTOMER2 specific section?
like a preprocessor that will strip #if sections, producing a sanitized copy of the source code.

anyone having the same issue out there?

Sandman · May 10, 2025

Alessandro71 said:
is there a simple way to process all source files and remove CUSTOMER2 specific section?

No.

Alessandro71 said:
anyone having the same issue out there?

Not identical, but I have many times longed for a compiler step that happens before the actual compilation, where it would be possible to modify the code using external scripts.

As for solving your need, the best I can come up with is to move all customer-specific things into an external b4xlib per customer, and then adjust the code to basically be this:

B4X:

#if CUSTOMER1
Dim CustomerSpecifics as Customer1Class
#end if

#if CUSTOMER2
Dim CustomerSpecifics as Customer2Class
#end if

You would obviously need to have identical structures in the classes so you could avoid messy code outside of them.

Android Question Source code preprocessor to strip conditional code?

Alessandro71

Well-Known Member

Sandman

Expert

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Android Question Source code preprocessor to strip conditional code?

Alessandro71

Well-Known Member

Sandman

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