go/tools: add vet check for direct comparion of reflect.Values

Comparing reflect.Values directly is almost certainly not what you want.
That compares reflect's internal representation, not the underlying
value it represents. One compares reflect.Values correctly by comparing
the results of .Interface() calls.

Fixes golang/go#43993
Update golang/go#18871

Change-Id: I6f441d920a5089bd346e5431032780403cefca76
Reviewed-on: https://go-review.googlesource.com/c/tools/+/308209
Trust: Keith Randall <khr@golang.org>
Trust: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Keith Randall <khr@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
3 files changed
tree: bca8dc5360ef95f50475bc687473c37f77aa9e6c
  1. .gitattributes
  2. .gitignore
  3. .prettierrc
  9. README.md
  10. benchmark/
  11. blog/
  12. cmd/
  13. codereview.cfg
  14. container/
  15. copyright/
  16. cover/
  17. go.mod
  18. go.sum
  19. go/
  20. godoc/
  21. gopls/
  22. imports/
  23. internal/
  24. playground/
  25. present/
  26. refactor/
  27. txtar/

Go Tools


This subrepository holds the source for various packages and tools that support the Go programming language.

Some of the tools, godoc and vet for example, are included in binary Go distributions.

Others, including the Go guru and the test coverage tool, can be fetched with go get.

Packages include a type-checker for Go and an implementation of the Static Single Assignment form (SSA) representation for Go programs.


The easiest way to install is to run go get -u golang.org/x/tools/.... You can also manually git clone the repository to $GOPATH/src/golang.org/x/tools.

JS/CSS Formatting

This repository uses prettier to format JS and CSS files.

The version of prettier used is 1.18.2.

It is encouraged that all JS and CSS code be run through this before submitting a change. However, it is not a strict requirement enforced by CI.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the tools repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/tools/(your subdir):” in the subject line, so it is easy to find.