impl is a tool to find implementers of an interface in Go programs.
For example:
$ impl -interface discovery.SwaggerSchemaInterface -path $GOPATH/k8s.io/kubernetes/pkg/client/typed/discovery
discovery_client.go:82:6: *discovery.DiscoveryClient
discovery_client.go:40:6: discovery.DiscoveryInterface
More options:
$ impl -help
Find the implementers of an interface in go source code.
Examples:
impl -interface discovery.SwaggerSchemaInterface -path ~/go/src/k8s.io/kubernetes/pkg/client/typed/discovery
impl -interface datastore.RawInterface -path ./luci/gae/service/datastore -format json
Flags:
-concrete-only
output concrete types only, by default the output contains both interface and concrete types that implement the specified interface
-format string
output format, should be one of: {plain,json,xml} (default "plain")
-interface string
interface name to find implementing types for, format: packageName.interfaceName
-path string
absolute or relative path to directory or file
The -interface and -path flags are required.
The implementer type and interface type should both reside in the supplied path.
Also see the go oracle for a similar, more machine-friendly tool. Unlike the oracle, impl directly takes the interface name as input instead of filename/byte offsets.
go get -u github.com/nishanths/impl
MIT.