tree 4c260d32a04678679676e89043691da7a115e38d
parent 578fe56564c48735981368f97bfca4cb2f41c78a
author Suzy Mueller <suzmue@golang.org> 1565636191 -0400
committer Suzy Mueller <suzmue@golang.org> 1565826842 +0000

internal/imports: merge import declarations

When an import is added to the ast, the import declarations are merged
together into the first import declaration. Since this is a part of
the formatting functionality of goimports, do this during formatting
regardless.

The merging pass was added to astutil.AddNamedImport in order to address
issue golang/go#14075. This joined imports from other blocks into the first
import declaration, so that a single block of imports isn't split across
multiple blocks.

This functionality is more of a formatting change than a fix imports
change, in line with sorting the imports, which occurs even when
FormatOnly. The formatting was only applied when an import was added
(not renamed or deleted). This change makes formatting by goimports
more consistent across runs and is not dependent on the exact fixes
that need to be applied.

Change-Id: Icb90bf694ff35e2d6405a3d477cf82fcd3e697e0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189941
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>