tree 6cd2f6e5edb364cec1a288a78e4221ac372a321b
parent 821960465883fbdd96568f2325f55ee4b05de1cb
author Than McIntosh <thanm@google.com> 1519913310 -0500
committer Ian Lance Taylor <iant@golang.org> 1519934134 +0000

compiler: avoid crashing on bad self-referential type

The compiler was crashing partway through emitting an error for a bad
self-referential struct type (which refers to one of its own fields
via an unsafe.Offset expression). Tweak the offset logic to check for
this class of type error and exit cleanly.

Fixes golang/go#24180

Change-Id: Iebf86df5eeb1a24b1c8363fdf61fef0317f084da
Reviewed-on: https://go-review.googlesource.com/97855
Reviewed-by: Ian Lance Taylor <iant@golang.org>