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Map types themselves are reference types, and can be passed in as nil even
without declaring the value as a pointer to the map.

Likewise, for maps that are nil the range operator is safe and no-ops and so
we do not need a nil check before doing the range. If for some reason we wanted
a check, a length check would be more appropriate than a nil check but it's not
necessary.

Map types themselves are reference types, and can be passed in as `nil` even
without declaring the value as a pointer to the map.

Likewise, for maps that are nil the `range` operator is safe and no-ops and so
we do not need a nil check before doing the range. If for some reason we wanted
a check, a length check would be more appropriate than a nil check but it's not
necessary.
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@stmcallister this is a no-op, so it may make sense to also get it merged before 1.4.0.

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Cool. This looks good. Thanks for the contribution! 🎉

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@Sjeanpierre Sjeanpierre left a comment

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lgtm

@theckman theckman added this to the v1.4.0 milestone Feb 20, 2021
@theckman theckman merged commit 00180a8 into master Feb 20, 2021
@theckman theckman mentioned this pull request Feb 20, 2021
@theckman theckman deleted the maps_are_pointers branch April 23, 2021 07:51
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3 participants