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Re: The tricky issue of do()

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Dave Mitchell
February 27, 2017 09:10
Re: The tricky issue of do()
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On Sat, Feb 25, 2017 at 07:50:08PM +0100, Christian Walde wrote:
> The point has been raised by haarg and leont that that might not be
> entirely straight-forward due to shared code between use/require, but i
> think in this case backwards compatibiliy should trump, even if the core
> code looks a little more ugly as a result.

Although I lean towards the backwards compatility camp, note that we can't
provide *exact* backcompat even if we wanted to: the old behaviour of do()
was strictly to search @INC, and @INC just happened often to have '.' as
its last member.

The most obvious backcompat strategy is to make 'do' always treat @INC as
having an implicit trailing '.' when loading a 'do' file; but this will
mean that code which explicitly removed '.' from @INC for security or
other reasons will suddenly have 'do' loading files from locations it
previously wouldn't have.

The Enterprise is captured by a vastly superior alien intelligence which
does not put them on trial.
    -- Things That Never Happen in "Star Trek" #10

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