NOTE: If go.useLanguageServer is enabled, many of the following features will be offered through the Go language server gopls.

IntelliSense

• Auto Completion of symbols as you type (using gocode or gopls)
• Signature Help for functions as you type (using gogetdoc or godef+godoc or gopls)
• Quick Info on the symbol as you hover over it (using gogetdoc or godef+godoc or gopls)

Code Navigation

• Go to or Peek Definition of symbols (using gogetdoc or godef+godoc or gopls)
• Find References of symbols and Implementations of interfaces (using guru or gopls)
• Go to symbol in file or see the file outline (using go-outline or gopls)
• Go to symbol in workspace (using go-symbols or gopls)
• Toggle between a Go program and the corresponding test file.

Code Editing

• Code Snippets for quick coding
• Format code on file save as well as format manually (using goreturns or goimports or gofmt or gopls)
• Symbol Rename (using gorename or gopls. Note: If not using gopls, then for undo after rename to work in Windows you need to have diff tool in your path)
• Add Imports to current file (using gopkgs or gopls)
• Add/Remove Tags on struct fields (using gomodifytags)
• Generate method stubs for interfaces (using impl)
• Fill struct literals with default values (using fillstruct)

Diagnostics

• Build-on-save to compile code and show build errors. (using go build and go test)
• Vet-on-save to run go vet and show errors as warnings (gopls)
• Lint-on-save to show linting errors as warnings (using golint, gometalinter, megacheck, golangci-lint or revive or gopls)
• Semantic/Syntactic error reporting as you type (using gotype-live or gopls)

Testing

• Run Tests under the cursor, in current file, in current package, in the whole workspace using either commands or codelens
• Run Benchmarks under the cursor using either commands or codelens
• Show code coverage either on demand or after running tests in the package.
• Generate unit tests skeleton (using gotests)