From b81d75fb42f3add3fefe7cf8fa220f88895920e5 Mon Sep 17 00:00:00 2001 From: Roland Shoemaker Date: Fri, 12 Mar 2021 09:51:50 -0800 Subject: [release-branch.go1.15] cmd/go/internal/load: always set IsImportCycle when in a cycle When hitting an import cycle in reusePackage, and there is already an error set, make sure IsImportCycle is set so that we don't end up stuck in a loop. Updates #25830 Fixes #47347 Change-Id: Iba966aea4a637dfc34ee22782a477209ac48c9bd Reviewed-on: https://go-review.googlesource.com/c/go/+/301289 Trust: Roland Shoemaker Run-TryBot: Roland Shoemaker Reviewed-by: Bryan C. Mills Reviewed-by: Jay Conrod TryBot-Result: Go Bot (cherry picked from commit cdd08e615a9b92742b21a94443720b6d70452510) Reviewed-on: https://go-review.googlesource.com/c/go/+/336669 Trust: Bryan C. Mills Run-TryBot: Bryan C. Mills --- src/cmd/go/internal/load/pkg.go | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/cmd/go/internal/load/pkg.go') diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go index 2b5fbb1c5b..f111e6757d 100644 --- a/src/cmd/go/internal/load/pkg.go +++ b/src/cmd/go/internal/load/pkg.go @@ -1280,6 +1280,11 @@ func reusePackage(p *Package, stk *ImportStack) *Package { Err: errors.New("import cycle not allowed"), IsImportCycle: true, } + } else if !p.Error.IsImportCycle { + // If the error is already set, but it does not indicate that + // we are in an import cycle, set IsImportCycle so that we don't + // end up stuck in a loop down the road. + p.Error.IsImportCycle = true } p.Incomplete = true } -- cgit v1.2.3-54-g00ecf