tree 647304708e559ee6dd01c5cf9c3ef2250504b211
parent 128824a23e7c038a341252700f1001ad29ef1988
author Michael Matloob <matloob@golang.org> 1565206314 -0400
committer Michael Matloob <matloob@golang.org> 1565291195 +0000

go/packages: handle ad-hoc overlays with sources outside modules

If a user runs a file= query for a source that doesn't exist,
and they are outside of a module, fill in the GoSources for the
empty package that go list returns, so the overlay can be applied.

Also add a hack for the case where go list can't determine the compiler
(gc or gccgo) a user is using because
    go list -f "{{context.Compiler}}" -- unsafe
doesn't work. If go list complains that a user is outside a module,
we'll give ourselves flexibility to guess things because there's
no right answer. So we'll guess that the compiler is gc.

Fixes golang/go#33482

Change-Id: I6a8aa0c617c4d803558389fb4272854245f59c5a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189322
Run-TryBot: Michael Matloob <matloob@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>