GoDef failed when using GoModules

[janbaer]

What did you do? (required. The issue will be closed when not provided.)

I've create a new project with using the Go module support, The project is located outside of the GOPATH directory. I've initialized it with go mod init github.com/janbaer/sherlock

When I'm in the main.go and I want to go to a function of sub package with using GoDef it fails.

What did you expect to happen?

It should jump to the expected function

What happened instead?

I just see the error in the status line: vim-go: [searching declaration] FAIL

When I go into the function manually I see the following output in the status line:

vim-go: func HandleI(nspect invalid type, _ invalid type, _ http.HandlerFunc, _ invalid type, ResponseWriter *http.Request, r *http.Request)

but the function name is HandleInspect. It's the same with any other function in this package and also other packages.

Navigating to local functions works. It works also in other projects without but also with GoModules support.

Configuration (MUST fill this out):

• vim-go version: latest master

• vimrc you used to reproduce (use a minimal vimrc with other plugins disabled; do not link to a 2,000 line vimrc):

• Vim version (first three lines from :version):

VIM - Vi IMproved 8.1 (2018 May 18, compiled Jan 28 2019 15:24:39)
Included patches: 1-837

• Go version (go version): 1.11.4

• Go environment (go env):

GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jan/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/jan/Projects/go"
GOPROXY=""
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/jan/Projects/sherlock/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build410959908=/tmp/go-build -gno-record-gcc-switches"

[janbaer]

I just found the hint that GoUpdateBinaries might could help and it works now for me. But I still see this strange status line when I'm into the function:

vim-go: func HandleI(nspect invalid type, _ invalid type, _ http.HandlerFunc, _ invalid type, ResponseWriter *http.Request, r *http.Request)

[bhcleek]

The function signature comes from either gocode or guru. If you're not seeing the ( in the wrong place when in GOPATH mode, then then problem doesn't lie with vim-go in this case.

[janbaer]

How can I investigate what gocode returns when it'll be called from vim-go. With which parameters will it be called under the hood?

[bhcleek]

1. Set g:go_debug=['shell-commands'] so that the command and all its arguments will be output as a list when it's run. You can also see it in the output of :messages.
2. Convert the list to a commandline, and add the -debug option.
3. Stop any running gocode processes:

$ gocode-gomod exit
$ gocode exit
$ gocode close #(just in case you have a  nsf/gocode running)

4. In a separate terminal window, run the command you created in step 2.

[janbaer]

@bhcleek Thank you very much for your instructions. I followed and I just tried to execute the following command:

gocode-gomod -debug -sock unix -f vim -builtin -fallback-to-source -cache autocomplete /home/jan/Projects/sherlock/handlers/handlers.go 258

But it hangs and no output will be produced.

This was the command as it was in the messages list:

vim-go: job command: ['/home/jan/Projects/go/bin/gocode-gomod', '-sock', 'unix', '-f', 'vim', '-builtin', '-fallback-to-source', '-cache', 'autocomplete', '/home/jan/Projects/sherlock/ha
ndlers/handlers.go', 258]

[bhcleek]

gocode is a server. After starting it on the commandline, you'll need to do the operation in Vim from which you're seeing the wrong output.

[janbaer]

Okay I tried it again, but it still no output. It seems, that VIM don't talk with this instance of gocode-gomod.

I also explicitely repeated step 3 before. I started gocode in the debvug mode.

gocode-gomod -sock unix -f vim -builtin -fallback-to-source -cache autocomplete -debug

[bhcleek]

gocode-gomod will only be used when you're in module mode. -debug is an option parsed by the flag, so should come before the autocomplete argument.

[janbaer]

My project is using the module mode, so I think I should use gocode-gomode. But I also tried gocode with the same result. No output on the commandline..

gocode-gomod -debug -sock unix -f vim -builtin -fallback-to-source -cache autocomplete

[janbaer]

I closed the issue because the main problem with GoDef is working now for me