Visual Studio For Golang

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Go for Visual Studio Code. The VS Code Go extension provides rich language support for the Go programming language. 📣 Debugging using Delve's native DAP implementation is enabled by default in v0.27.0. Jun 25, 2018 The Go extension for Visual Studio Code makes use of a number of Go command line tools. They are not installed with the extension, but there is an installation process that provides a convenient way of adding them to the configuration. Open Visual Studio Code. Select File Open Folder. ( Ctrl + K Ctrl + O) Navigate to go src hello and select.

  • Visual Studio 2022 comes with our latest toolchain for targeting C20 and is binary-compatible with 2019. Develop cross-platform C projects from Windows and leverage the best the ecosystem has to offer.
  • To enable Golang support you need to install extension “Go”. Launch VS Code by double clicking the VS Code icon on the desktop. Press Ctrl + Shift + x or click the last icon on the left vertical.
  • Yes, and really well for that matter. I switch between VScode and Emacs depending on where I am and I was surprised when VScode installed more Go integrations for me than I had in Emacs.

Since Go 1.11, modules are the official way of managing dependencies in Go. The transition is not as smooth as it should be as it is in a very early stage. The feature is planned to be finalized with Go 1.14.

This articles explains the setup and recommends settings for Visual Studio Code.

go.mod basics

A module is a collection of related Go packages that are versioned together. All dependencies and their exact versions of your package imports are stored in the go.mod file.

See this Github page for more in-depth information on modules.

Here is an examplariy go.mod file.

The specified module is my-project/my-repo. The used version of Go is 1.12. Within this package, three imports are used.

There are a few options for getting a specific dependency:

Go module setup in Visual Studio Code

Enable Go modules on your machine with

To enable module support in Visual Studio Code, add the following to your IDE settings (press CTRL+,):

This will trigger VS Code to install the go package gopls (The Go Language Server). Visual Studio uses gopls, an implementation of the Language Server Protocol server for Go. It supports features, such as

  • Autocompletion
  • Jump to definition
  • Signature help
  • Hover
  • Document symbols
  • References
  • Rename

It is currently in alpha state, so it is not stable. To install or update gopls, run

However, you can also use the VSCode command Go: Install/Update Tools to install and update all available Go tools. It is located under “View” -> “Command Palette”.

After enabling this feature, I had several problems to a point where Visual Studio Code was almost not usable anymore (on file save, an old version was loaded and all was lost; go-to-definition not working or very slow, and several other problems).

Therefore, it is recommended to look out for updates of the Go tools. However, the following additional settings in VS Code resolved my problems.

Visual studio for golang 2019

Some more settings which I find helpful for my daily work with Go.

Using the Go extension for Visual Studio Code, you get features like IntelliSense, code navigation, symbol search, testing, debugging, and many more that will help you in Go development.

You can install the Go extension from the VS Code Marketplace.

Watch 'Getting started with VS Code Go' for an explanation of how to build your first Go application using VS Code Go.

This article describes only a subset of the features the Go extension provides. See the extension's documentation for the full, up-to-date list of supported features.

IntelliSense

IntelliSense features are provided by the Go language server, gopls, maintained by the Go team. You can configure the behavior of gopls using the gopls settings.

Auto completions

As you type in a Go file, you can see IntelliSense providing you with suggested completions. This even works for members in current, imported, and not yet imported packages. Just type any package name followed by ., and you will get suggestions for the corresponding package members.

Tip: Use ⌃Space (Windows, Linux Ctrl+Space) to trigger the suggestions manually.

Hover Information

Hovering on any variable, function, or struct will give you information on that item such as documentation, signature, etc.

Signature help

When you open the ( while calling a function, a pop-up provides signature help for the function. As you keep typing the parameters, the hint (underline) moves to the next parameter.

Tip: Use ⇧⌘Space (Windows, Linux Ctrl+Shift+Space) to manually trigger the signature help when the cursor is inside the () in the function call.

Studio

Code navigation

Visual Studio For Golang Free

Code navigation features are available in the context menu in the editor.

Visual studio code for golang
  • Go To DefinitionF12 - Go to the source code of the type definition.
  • Peek Definition⌥F12 (Windows Alt+F12, Linux Ctrl+Shift+F10) - Bring up a Peek window with the type definition.
  • Go to References⇧F12 (Windows, Linux Shift+F12) - Show all references for the type.
  • Show Call Hierarchy⇧⌥H (Windows, Linux Shift+Alt+H) - Show all calls from or to a function.

You can navigate via symbol search using the Go to Symbol commands from the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)).

  • Go to Symbol in File - ⇧⌘O (Windows, Linux Ctrl+Shift+O)
  • Go to Symbol in Workspace - ⌘T (Windows, Linux Ctrl+T)

You can also navigate back and forth between a Go file and its test implementation using the Go: Toggle Test File command.

Build, test, and diagnose

The Go language server (gopls) detects build and vet errors found on the workspace. The errors and warnings from running any/all of the above will be shown red/green squiggly lines in the editor. These diagnostics also show up in the Problems panel (View > Problems).

You can add additional lint checks using the go.lintOnSave setting and configuring your choice of linting tool (staticcheck, golangci-lint, or revive) using the go.lintTool setting.

You can configure the extension to run tests and compute test coverage using:

  • go.testOnSave
  • go.coverOnSave
  • go.testFlags

Formatting

You can format your Go file using ⇧⌥F (Windows Shift+Alt+F, Linux Ctrl+Shift+I) or by running the Format Document command from the Command Palette or the context menu in the editor.

By default, formatting is run when you save your Go file. You can disable this behavior by setting editor.formatOnSave to false for the [go] language identifier. You can change this using your JSON setting files.

When you have multiple formatters activated for Go files, you can select the Go extension as the default formatter.

Formatting is provided by gopls. If you want gofumpt-style formatting, you can configure gopls to use gofumpt.

Visual

Test

There are many test-related commands that you can explore by typing Go: test in the Command Palette.

The first three above can be used to generate test skeletons for the functions in the current package, file, or at the cursor using gotests. The last few can be used to run tests in the current package, file, or at the cursor using go test. There is also a command for getting test coverage.

Import packages

Run the command Go: Add Import to get a list of packages that can be imported to your Go file. Choose one and it will get added in the import block of your Go file.

Rename symbols

You can rename symbols using F2 or by running the Rename Symbol command in the context menu in the editor.

Debugging

The Go extension lets you debug Go code as well. You will need to install the Delve debugger manually as a prerequisite. Read Debug Go programs in VS Code for setup steps, information on remote debugging and a troubleshooting guide.

Next steps

This has been a brief overview showing the Go extension features within VS Code. For more information, see the details provided in the Go extension README.

Visual Studio For Golang 2020

To stay up to date on the latest features/bug fixes for the Go extension, see the CHANGELOG.

If you have any issues or feature requests, feel free to log them in the Go extension vscode-go repo.

Visual Studio 2019 Golang

If you'd like to learn more about VS Code, try these topics:

Visual Studio Code Setup For Golang

  • Basic Editing - A quick introduction to the basics of the VS Code editor.
  • Install an Extension - Learn about other extensions are available in the Marketplace.
  • Code Navigation - Move quickly through your source code.