internal/span: handle character values beyond end of line in FromUTF16Column

On the assumption these implementations are designed to
support/implement the LSP spec, FromUTF16Column should handle the case
where a character value is beyond the end of the line.

https://github.com/Microsoft/language-server-protocol/blob/gh-pages/specification.md#position:

> * If the character value is greater than the line length it defaults back to the
> * line length.

Fixes golang/go#31883

Change-Id: I370845b7f2f046d8e84048a26bae5b23e9c27d06
Reviewed-on: https://go-review.googlesource.com/c/tools/+/185058
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2 files changed
tree: 3f4a7af602b37a52debea8330c48ed1fc9f1a932
  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. .gitattributes
  15. .gitignore
  16. AUTHORS
  17. codereview.cfg
  18. CONTRIBUTING.md
  19. CONTRIBUTORS
  20. go.mod
  21. go.sum
  22. LICENSE
  23. PATENTS
  24. README.md
README.md

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.

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.

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.