Is there a way to find out through go cmdline or an IDE (IntelliJ) what interfaces my struct implements?

php editor Xiaoxin will answer your question. If you want to know which interfaces your structure implements, there are several ways to do it. First, you can use the go cmdline command line tool to find it. Type "go doc -all" into the command line and press Enter. It will display all the interfaces implemented in your structure. Additionally, if you are using IntelliJ IDE, you can use the code navigation feature it provides to find out which interfaces your structure implements. Just find your struct definition in the code, then Ctrl-click on the struct name and it will show you all the interface implementations. Hope these methods are helpful to you!

Question content

Say I have

// main.go
type Speaker interface {
  Speak()
}

type Person struct {}

func (p *Person) Speak() {
   panic("test")
}

Is there a way to know which interfaces Person implements, given Person elsewhere in the code? Obviously, Person implements Speaker, but what if it is another type?

type Ghost interface {
  Speak()
}

Exists in another package?

For context, I'm looking at the codebase and I'm having a hard time deciding if the receiver method can be removed because it's hard to tell if the method exists to satisfy the interface requirements or just to enhance functionality. In the standalone codebase I can remove it and see if I get compiler errors, but I can't do the same in the public library.

Workaround

From the goland documentation you can go to a single implementation using the gutter icon that is implementing or overriding your interface, or you can use Cmd U to find all implementations (assuming you working on a Mac). Here is the link to the documentation:

https://www.jetbrains .com/help/go/navigating-through-the-source-code.html#go_to_implementation

Since Goland is the Go IDE based on IntelliJ, you should be able to do the same thing. You may need to configure the gutter icon, but the same commands should work in IntelliJ.

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