tree 0f7594a33874022726b23347f02e0ea665d92f4e
parent 258ee27c3773521c2fb7e7936f42610d001d1612
author Jean-Hadrien Chabran <jh@chabran.fr> 1619811297 +0200
committer Rebecca Stambler <rstambler@golang.org> 1631658154 +0000

internal/lsp: add support for hovering runes

Enable to hover runes found in basic literals in various forms.
When a rune is found, the hover message provides a summary composed of a
printable version (if it exists) of the rune, its codepoint and its name.

Behaviour varies slightly depending on the basic literal: rune literals
always display the summary when hovered, string literals only display it
when an escaped rune sequence is found to avoid providing unnecessary
information, and finally number literals only when expressed as a
hexadecimal number whose size ranges from one to eight bytes.

Fixes golang/go#38239

Change-Id: I024fdd5c511a45c7c285e200ce1eda0669a45491
Reviewed-on: https://go-review.googlesource.com/c/tools/+/321810
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Trust: Rebecca Stambler <rstambler@golang.org>
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>