"func" type not supported

IDEA version: 14.1.4 OS version: 4.0.7-2-ARCH 1 SMP PREEMPT Tue Jun 30 07:50:21 UTC 2015 x86_64 GNU/Linux (Xfce desktop env) Java version: java version "1.8.0_45" Java(TM) SE Runtime Environment (build 1.8.0_45-b14) Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode) Go IntelliJ plugin version: 0.9.388 Go version: 1.4.2

In my project, I have a "func" type: https://github.com/pierrre/imageserver/blob/master/server.go#L10

 go
// ServerFunc is a Server func.
type ServerFunc func(params Params) (*Image, error)

// Get implements Server.
func (f ServerFunc) Get(params Params) (*Image, error) {
    return f(params)
}

It implements:

 go
// Server represents an Image server
type Server interface {
    Get(Params) (*Image, error)
}

But it's not detected as a Server. See https://github.com/pierrre/imageserver/blob/master/server_test.go#L18 .

 go
    server := ServerFunc(func(params Params) (*Image, error) {
        called = true
        return testdata.Medium, nil
    })
    server.Get(Params{})

IntelliJ says: "Unresolved reference 'Get'" Get is highlighted in red. "ctrl+click" doesn't go to definition. Autocompletion suggests my server variable is an *Image...

该提问来源于开源项目：go-lang-plugin-org/go-lang-idea-plugin