debug: support completion/suggestion in debug console

[shellwhale]

What version of Go, VS Code & VS Code Go extension are you using?

Version Information

• Run go version to get version of Go from the VS Code integrated terminal.
  • go version go1.21.6 windows/amd64
• Run gopls -v version to get version of Gopls from the VS Code integrated terminal.
  • Build info

---

golang.org/x/tools/gopls v0.14.2
golang.org/x/tools/gopls@v0.14.2 h1:sIw6vjZiuQ9S7s0auUUkHlWgsCkKZFWDHmrge8LYsnc=
github.com/BurntSushi/toml@v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
github.com/google/go-cmp@v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/sergi/go-diff@v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
golang.org/x/exp/typeparams@v0.0.0-20221212164502-fae10dda9338 h1:2O2DON6y3XMJiQRAS1UWU+54aec2uopH3x7MAiqGW6Y=
golang.org/x/mod@v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
golang.org/x/sync@v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
golang.org/x/sys@v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
golang.org/x/telemetry@v0.0.0-20231114163143-69313e640400 h1:brbkEFfGwNGAEkykUOcryE/JiHUMMJouzE0fWWmz/QU=
golang.org/x/text@v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
golang.org/x/tools@v0.14.1-0.20231114185516-c9d3e7de13fd h1:Oku7E+OCrXHyst1dG1z10etCTxewCHXNFLRlyMPbh3w=
golang.org/x/vuln@v1.0.1 h1:KUas02EjQK5LTuIx1OylBQdKKZ9jeugs+HiqO5HormU=
honnef.co/go/tools@v0.4.5 h1:YGD4H+SuIOOqsyoLOpZDWcieM28W47/zRO7f+9V3nvo=
mvdan.cc/gofumpt@v0.4.0 h1:JVf4NN1mIpHogBj7ABpgOyZc65/UUOkKQFkoURsz4MM=
mvdan.cc/xurls/v2@v2.4.0 h1:tzxjVAj+wSBmDcF6zBB7/myTy3gX9xvi8Tyr28AuQgc=
go: go1.21.0

• Run code -v or code-insiders -v to get version of VS Code or VS Code Insiders.

  • 1.85.1
    0ee08df0cf4527e40edc9aa28f4b5bd38bbff2b2
    x64

• Check your installed extensions to get the version of the VS Code Go extension

  • v0.40.1

• Run Ctrl+Shift+P (Cmd+Shift+P on Mac OS) > Go: Locate Configured Go Tools command.

  • go: C:\Users\shellwhale\scoop\shims\go.exe: go version go1.21.0 windows/amd64

  gopls: C:\Users\shellwhale\go\bin\gopls.exe (version: v0.14.2 built with go: go1.21.0)
  gotests: not installed
  gomodifytags: not installed
  impl: not installed
  goplay: not installed
  dlv: C:\Users\shellwhale\go\bin\dlv.exe (version: v1.21.0 built with go: go1.21.0)
  staticcheck: C:\Users\shellwhale\go\bin\staticcheck.exe (version: v0.4.3 built with go: go1.21.0)

Describe the bug

Debug Console Suggestions are not working

Steps to reproduce the behavior:

Here is an example of debug console suggestions working with the Python debugger

[shellwhale]

It looks like there is already Delve support for this go-delve/delve#3004

[hyangah]

The delve feature is for dlv cli. I don't know how this can be implemented on top of DAP. Or is there VS Code specific capability to utilize?

[hyangah]

https://microsoft.github.io/debug-adapter-protocol//specification.html#Requests_Completions

Delve DAP currently does not support this capability. cc @suzmue

[diegolatorre116]

This would be a great feature! It would greatly improve the user experience