Welcome to the GoLand 2020.1 Early Access Program!

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The GoLand 2020.1 Early Access Program is starting. For this release, we are focusing on ease of use, performance, and reducing time wasted on boilerplate code and redundant actions in the IDE. We have also included nifty upgrades for Go Modules support, and more. You can find a brief description of what’s to come in the roadmap blog post for 2020.1.



You can get it via the Toolbox App, download from the website, or use a snap package (for Ubuntu). Or, right in GoLand, select Automatically check updates for Early Access Program in Preferences / Settings | Appearance & Behavior | System Settings | Updates.

Download GoLand 2020.1 EAP #1

In case you are wondering what the Early Access Program is, here’s a quick explanation:



EAP builds let you try out the latest features and enhancements in Goland that are still work in progress. The builds are not fully tested and might be unstable, but this is where you can help us. By taking these builds and features for a test drive in your real-world projects and scenarios, you can help us polish them. This way, when the final release is ready, it will work smoothly for you.

The EAP lets you try out all the newest features first.

EAP builds are free to use for 30 days from the build date. You can use this period as an extended trial of GoLand.

We provide EAP builds until a stable release is almost ready. For the upcoming version 2020.1, the EAP period will last roughly to the end of March.

In each release cycle, we recognize the most active evaluators by giving them a free 1-year GoLand subscription and an exclusive GoLand T-shirt.

Additionally, we provide fresh builds almost every day. So if you don’t want to wait for the official EAP build announcements, you can simply download one of these nightly builds, which are only available via the Toolbox App. Note that the quality of nightly builds is usually below our standards, and they don’t come with release notes. Like EAP builds, they also expire within 30 days of being released.

So, let’s take a look at what we’ve packed inside this first EAP build.

Go Modules

You can now fetch missed dependencies and remove unused dependencies via Alt-Enter in the go.mod file.

Go 1.14

Go 1.14 has added support for embedding overlapping interfaces, and so have we! When you describe different aspects of a type using overlapping interfaces, GoLand will not report duplicated methods for them as errors.

Why was this feature added to the language?

The main benefit is that we can define interfaces using embedding that otherwise would need to be defined manually. Here’s an example:



type Person interface { Name() string String() string } type Employee interface { Person Department() string String() string }

String()

Employee

Person

Person

Code Completion

Before Go 1.14, we wouldn’t have been able to add themethod on theinterface since it’s already defined on theinterface. Now, we can define it using interface embedding, which will make our code future proof in case there are updates to theinterface.

We say no to boilerplate code! GoLand adds code completion for a common pattern for handling errors. Now when you type “if” inside a function, you can choose if err != nil { ... } to automatically complete it.

To define interfaces and structs faster, the IDE now suggests templates for them when you type the ‘type’ keyword. The same completion is shown when you type ‘interface’ or ‘struct’.

The Fill Fields action now adds spaces after colons when required by formatting rules, as well as the comma at the end of the statement in composite literals.

Now when you are working with maps, code completion moves the cursor to behind the closing bracket after you complete a key type.

Smart Code Completion suggests a pointer to struct initializer.

Finally, code completion has gotten smarter and now suggests compatible types in assertions and type switch cases first.

Code Editing

GoLand 2020.1 will automatically add parentheses around return types after the comma when writing a signature of a multi-value return function.

Also, GoLand automatically escapes double-quotes when you paste some text in a string literal.

Postfix Completion Templates

The .else Postfix Completion template quickly adds an “if” statement checking if the expression is false.

Live Templates

We’ve added new consts, vars, types, and imports templates. For these templates, GoLand will add braces around the expression by default.

The fori template inserts the boilerplate code for the classic for-loop.

Refactorings

Implement Methods (Ctrl + I on macOS and on Windows/Linux) now allows you to specify parameter names even if they are omitted in the interface definition.

Performance

Navigate to implementations (⌥⌘B on macOS and Ctrl+Alt+B on Windows/Linux) and Navigate to Declaration or Usages (⌘B on macOS and Ctrl+B on Windows/Linux) now work faster since they look for implementations in the project scope first. In addition, the search results display project elements before non-project elements instead of sorting them all alphabetically.

We’ve also limited the scope for reference search for dep and Go Modules projects to improve their search performance.

JetBrains Mono Font

If you are wondering what font was used for screenshots and GIFs in this blog post — we at JetBrains have created a new typeface for developers called JetBrains Mono. Now it is available in GoLand by default, please go to Preferences / Settings | Editor | Font and choose JetBrains Mono to give it a try.

Spell Checker

Some time ago we announced a plugin called Grazie. This plugin provides intelligent spelling and grammar checks for text that you write in the IDE, and it supports over 15 languages, including English, German, Russian, Chinese, and more. In this EAP build and in the upcoming 2020.1 release, Grazie is bundled by default. To learn more, please read this blog post.

Default a.k.a. Classic Light is Back in Business

Many users have asked us to add more variety to the semantic code highlighting in the Default and Darcula color schemes, and we did in version 2019.2. Some users were happy, while others were not and asked us to revert the changes.

So, to make everyone happy, we’ve decided to bring back the Default color scheme, albeit with a new name, Classic Light.

To switch to this scheme, go to Preferences/Settings | Editor | Color Scheme.

JBR8 End of Support

Starting now, we are fully moving to JetBrains Runtime 11 (JBR11), and will no longer distribute builds with JetBrains Runtime 8 (JBR8). Please note that all the GoLand 2020.1 updates, both in the IDE and the Toolbox App, will come with JBR11.

Remember that we always appreciate your feedback, so please share it with us here in the comments, on Twitter, or in our issue tracker.