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x/tools/gopls: empty hover for an import spec #33000

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movie-travel-code opened this issue Jul 9, 2019 · 1 comment
Closed

x/tools/gopls: empty hover for an import spec #33000

movie-travel-code opened this issue Jul 9, 2019 · 1 comment
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FrozenDueToAge gopls Issues related to the Go language server, gopls.
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@movie-travel-code
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movie-travel-code commented Jul 9, 2019

What version of Go are you using (go version)?

$ go version
go version go1.12 darwin/amd64

$ gopls version
version v0.1.1-cmd.gopls, built in $GOPATH mode

Does this issue reproduce with the latest release?

Yes. Reproduces at the master as well.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/henrywong/Library/Caches/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/henrywong/workspace/gopath"
GOPROXY=""
GORACE=""
GOROOT="/usr/local/opt/go/libexec"
GOTMPDIR=""
GOTOOLDIR="/usr/local/opt/go/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
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 -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/fm/bk0wqlkj523gdp9pbtnyvxmm0000gn/T/go-build313615319=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

Hover on the import package.

package main

import "fmt"

func main() {
  fmt.Println("Hellow World")
}

What did you expect to see?

Should return an empty string or more consistent contents.

What did you see instead?

Returns

```go\n\n```

it will show an redundant empty box in vs code as the figure below shows.
Screen Shot 2019-07-09 at 3 38 05 PM

@gopherbot gopherbot added this to the Unreleased milestone Jul 9, 2019
@gopherbot gopherbot added the gopls Issues related to the Go language server, gopls. label Jul 9, 2019
movie-travel-code pushed a commit to movie-travel-code/tools that referenced this issue Jul 9, 2019
…n enabled.

There are some circumstances where go langserver returns '```go\n\n```',
clients may render this empty markdown string. It's better to return
an empty string instead. Related issue:
golang/go#33000.
@stamblerre stamblerre changed the title x/tools/gopls: hover on import path returns 'go\n\n' with 'MarkupKind.Markdown' enabled. x/tools/gopls: empty hover for an import spec Jul 9, 2019
movie-travel-code pushed a commit to movie-travel-code/tools that referenced this issue Jul 11, 2019
Since 'IdentifierInfo' doesn't contain ast node of import spec,
gopls will construct an empty string under plaintext mode and
'```go\n\n```' under markdown mode for *ast.ImportSpec.

For now, the hovering result of import spec is the corresponding node
format. Related issue: golang/go#33000.
movie-travel-code pushed a commit to movie-travel-code/tools that referenced this issue Jul 11, 2019
Since 'IdentifierInfo' doesn't contain ast node of import spec,
gopls will construct an empty string under plaintext mode and
'```go\n\n```' under markdown mode for *ast.ImportSpec.

For now, the hovering result of import spec is the corresponding node
format. Related issue: golang/go#33000.
@gopherbot
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Change https://golang.org/cl/185357 mentions this issue: internal/lsp: support hover for *ast.ImportSpec

@golang golang locked and limited conversation to collaborators Jul 10, 2020
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