gopls/test: add type checking for debug server templates

When internal data structures in gopls changed, the templates driving
the debug server failed because fields or methods they relied on
had gone away. At some cost, this change adds tests that all the
fields and methods in the templates can be satisfied.

The test assumes that all the template uses are through render() in
debug/serve.go. It checks that is list of templates is the same
as the server's, and then type checks each template.

The costs are
1. the template type checking is done by a new external dependency,
github.com/jba/templatecheck
2. To avoid adding a new dependency to x/tools, the test is in
the gopls module, not the debug package, so variables from the
debug package have to be exported

In an ideal world the debug package, and much of internal/lsp,
would be in the gopls package. In that case the cost 2 about could
be avoided.

In an ideal world, the core runtime template packages would
contain template checking code, and cost 1 would be unnecessary.
In a more likely (or not so distant) world, perhaps jba would move
(or allow us to move) the template check package into x/tools.

Change-Id: I36b509a00cbdcb5323ee1af3c1193b603c7a907f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/277292
Run-TryBot: Peter Weinberger <pjw@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Trust: Peter Weinberger <pjw@google.com>
6 files changed
tree: 139ecb954c8af33685dc7508498150593dcfb38c
  1. benchmark/
  2. blog/
  3. cmd/
  4. container/
  5. cover/
  6. go/
  7. godoc/
  8. gopls/
  9. imports/
  10. internal/
  11. playground/
  12. present/
  13. refactor/
  14. txtar/
  15. .gitattributes
  16. .gitignore
  17. .prettierrc
  18. AUTHORS
  19. codereview.cfg
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. go.mod
  23. go.sum
  24. LICENSE
  25. PATENTS
  26. README.md
README.md

Go Tools

PkgGoDev

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.

Download/Install

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.