tree 5ac0580a95241f7a26924ec05024486888c22bd9
parent adcf10890833026437a94da54934ce50c0018309
author Ian Lance Taylor <iant@golang.org> 1626720785 -0700
committer Ian Lance Taylor <iant@golang.org> 1626738379 +0000

compiler: avoid aliases in receiver types

If a package declares a method on an alias type, the alias would be
used in the export data.  This would then trigger a compiler
assertion on import: we should not be adding methods to aliases.

Fix the problem by ensuring that receiver types do not use alias types.
This seems preferable to consistently avoiding aliases in export data,
as aliases can cross packages.  And it's painful to try to patch this
while writing the export data, as at that point all the types are known.

Test case is https://golang.org/cl/335172.

Fixes golang/go#47131

Change-Id: Ic1fa7feddc3ff19c22c5c112bc06236b8c9d010a
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/335729
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>