Interface inspector

See which structs implement a given interface.

Example:

• Given the following project structure, we have an interface Fetcher which is implemented by both the awsFetcher struct and facebookFetcher struct.

• Running interface-inspector -package fetcher -interface Fetcher would output all structs which implement the interface Fetcher defined in the package named fetcher.

• Output example:

  awsFetcher /home/tester/Documents/projects/interface-inspector/pkg/aws/aws.go:3:6
  facebookFetcher /home/tester/Documents/projects/interface-inspector/pkg/facebook/facebook.go:3:6
  

• Clicking with the mouse on the path in the output in an editor like VSCode would open the strcut directly which is handy in big projects where a lot of structs implement an interface and one wants to see all of them.

  ├── go.mod
  ├── go.sum
  ├── main.go
  ├── pkg
  │   ├── aws
  │   │   └── aws.go
  │   ├── facebook
  │   │   └── facebook.go
  │   └── fetcher
  │   └── fetcher.go
  └── README.md
  
  

  // file: pkg/fetcher/fetcher.go
  package fetcher
  type Fetcher interface {
  	Fetch (url string) ([]byte , error)
  }

  // file: pkg/aws/aws.go
  package aws
  type awsFetcher struct {
  }
  func (a *awsFetcher) Fetch (url string) ([]byte , error) {
  	return nil , nil
  }

  // file: pkg/facebook/facebook.go
  package facebook
  type facebookFetcher struct {
  }
  func (a *facebookFetcher) Fetch (url string) ([]byte , error) {
  	return nil , nil
  }

Usage:

• Run interface-inspector -h

TODOS:

• Write a VSCode extension to interface with this. the extension should return the output in something like a quickpick list similar to what vscode does with the output of the language server.