ClojureScript

:main namespace silently ignored under :whitespace optimizations

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Description

The ClojureScript compiler's :main option specifies an "entry point namespace". In the output JavaScript, I expect the compiler to include only the entry point namespace, and the transitive closure of namespaces required by that namespace.

However, in ClojureScript r1.9.473, the :main is silently ignored when :optimizations :whitespace is set.

As a user, my expectation is that the whitespace optimizations case would act the same as the simple optimizations case.

If this is not possible, I think the compiler should throw an error when the :main option is provided together with :optimizations :whitespace to prevent confusion / frustration.
(Ditto for behavior under :optimizations :none)

I'm happy to contribute a patch for whatever behavior the core team deems preferable.

Thanks

Kevin

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