internal/lsp/template: improve error and quote handling

Template tokenization was handling quoting incorrectly.
(The previous code would misunderstand {{"{{"}}.)

While the user is typing an action in a template file the template
parser was returning a correct but useless error, so gopls had no
information about the file. The new code improves this by tokenizing
and parsing an adjusted version of the file. That is, it can sometimes
tell when the user has started typing an action so the {{, }} delimiters
are unbalanced. It replaces the new {{ by blanks, thereby suppressing
a lot of useless error messages from gopls.

Something like this seems to be a prerequisite for provdiding completions
based on the contents of the rest of the file.

Change-Id: I6b6396a4d9e599d671e778b303e6628642585a90
Run-TryBot: Peter Weinberger <>
gopls-CI: kokoro <>
TryBot-Result: Go Bot <>
Reviewed-by: Robert Findley <>
Trust: Peter Weinberger <>
2 files changed
tree: a95adbfd073d446a9763f9799c06952ff40560ac
  1. .gitattributes
  2. .gitignore
  3. .prettierrc
  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 You can also manually git clone the repository to $GOPATH/src/

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

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