go/token.File.key (method)

4 uses

	go/token (current package)
		position.go#L539: 	pn, _ := s.tree.locate(file.key())
		tree.go#L53: func (f *File) key() key {
		tree.go#L309: 	pos, parent := t.locate(file.key())
		tree.go#L334: 	x := &node{file: file, key: file.key(), parent: parent, height: -1}