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Robert Griesemer 82d6e2eab8 go/types: NewInterface/NewInterfaceType complete empty interfaces
When creating a new interface via the exported API calls, a shared
empty and completed Interface value is returned if there are no
methods or embedded interfaces. This is a minor optimization and
matches the internal behavior when creating empty interfaces.

Since calling Interface.Complete is idempotent, and since there
are no other legitimate ways to create Interface values externally
but via NewInterface/NewInterfaceType calls, and completed Interfaces
are considered "immutable", this change is not expected to affect
clients. The only observable behavior that changed is the string
value for empty interfaces created via the above API calls; those
empty interfaces now don't show "incomplete" anymore even before
Interface.Complete is called. Except in special test cases, this
behavior is unlikely to affect clients.

Change-Id: Idf7f2cd112241c5b81a43b4544bbe3f2e003d8d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/191417
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2019-08-26 16:36:22 +00:00
.github
api api/go1.13: add debug/elf.Symbol fields added in CL 184099 2019-08-08 18:44:16 +00:00
doc doc/go1.13: add missing slashes 2019-08-25 16:47:03 +00:00
lib/time lib/time: update tz data to 2019b 2019-07-03 23:08:27 +00:00
misc cmd/go: include GOEXPERIMENT flags in tool id for cache key 2019-07-17 22:57:03 +00:00
src go/types: NewInterface/NewInterfaceType complete empty interfaces 2019-08-26 16:36:22 +00:00
test go/types: allow embedding overlapping interfaces 2019-08-26 16:36:15 +00:00
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AUTHORS A: Add Maya Rashish (individual CLA) 2019-04-23 14:40:30 +00:00
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The Go Programming Language

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