delphi - Why would a class need an empty method to be called to register it? -

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i'm evaluating existing dependency injection library delphi, , settled on delphidicontainer because of simplicity - needs single unit file!

however, there 1 thing don't understand — in this example file @ bottom:

initialization //with lines linked include actual code services tcsvdataservice.register; tpaddeddataservice.register;

these register methods empty, but, if comment out 2 lines in initialization section, dicontainer.get('dataservice') tdataservice fail.

why? these empty methods for?

the delphi compiler smart , try eliminate unused code when compiling/linking code, compiler's point of view, implementation classes (eg, tcsvdataservice) in example not used anywhere in program , eliminated, these empty method callings there prevent happening.


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