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I hate this requirement (and other similar ones). They force the crystallisation of architecture long before the concepts they model have them selves had time to fully crystallise.

You inevitably end up having to shotgun edit a bunch of files (that could have been one file) to re-architect stuff when it changes.

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> I hate this requirement (and other similar ones). They force the crystallisation of architecture long before the concepts they model have them selves had time to fully crystallise

I'm not a fan of single-class-per-file as a rigid rule, but it's not my effect that it has any effect on architecture. Adding a file with a new class isn't substantially greater overhead than adding a class in an existing file, and moving stuff between smaller files is, if anything, easier than moving it around within a single monster file.

For the things I tend to write (CLI apps) deployment is just so much easier if it is all in one file.

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