system: unexport Op implementations

None of these are valid with their zero value, and the implementations assume they are created by the builder methods. They are by all means an implementation detail and exporting them makes no sense.

Signed-off-by: Ophestra <cat@gensokyo.uk>

system/wayland.go

@@ -9,16 +9,16 @@ import (
 	"hakurei.app/system/wayland"
 )
 
-// Wayland appends [WaylandOp] to [I].
+// Wayland maintains a wayland socket with security-context-v1 attached via [wayland].
+// The socket stops accepting connections once the pipe referred to by sync is closed.
+// The socket is pathname only and is destroyed on revert.
 func (sys *I) Wayland(syncFd **os.File, dst, src, appID, instanceID string) *I {
-	sys.ops = append(sys.ops, &WaylandOp{syncFd, dst, src, appID, instanceID, wayland.Conn{}})
+	sys.ops = append(sys.ops, &waylandOp{syncFd, dst, src, appID, instanceID, wayland.Conn{}})
 	return sys
 }
 
-// WaylandOp maintains a wayland socket with security-context-v1 attached via [wayland].
-// The socket stops accepting connections once the pipe referred to by sync is closed.
-// The socket is pathname only and is destroyed on revert.
-type WaylandOp struct {
+// waylandOp implements [I.Wayland].
+type waylandOp struct {
 	sync              **os.File
 	dst, src          string
 	appID, instanceID string
@@ -26,9 +26,9 @@ type WaylandOp struct {
 	conn wayland.Conn
 }
 
-func (w *WaylandOp) Type() Enablement { return Process }
+func (w *waylandOp) Type() Enablement { return Process }
 
-func (w *WaylandOp) apply(sys *I) error {
+func (w *waylandOp) apply(sys *I) error {
 	if w.sync == nil {
 		// this is a misuse of the API; do not return a wrapped error
 		return errors.New("invalid sync")
@@ -58,7 +58,7 @@ func (w *WaylandOp) apply(sys *I) error {
 	}
 }
 
-func (w *WaylandOp) revert(_ *I, ec *Criteria) error {
+func (w *waylandOp) revert(_ *I, ec *Criteria) error {
 	if ec.hasType(w.Type()) {
 		msg.Verbosef("removing wayland socket on %q", w.dst)
 		if err := os.Remove(w.dst); err != nil && !errors.Is(err, os.ErrNotExist) {
@@ -73,12 +73,12 @@ func (w *WaylandOp) revert(_ *I, ec *Criteria) error {
 	}
 }
 
-func (w *WaylandOp) Is(o Op) bool {
-	target, ok := o.(*WaylandOp)
+func (w *waylandOp) Is(o Op) bool {
+	target, ok := o.(*waylandOp)
 	return ok && w != nil && target != nil &&
 		w.dst == target.dst && w.src == target.src &&
 		w.appID == target.appID && w.instanceID == target.instanceID
 }
 
-func (w *WaylandOp) Path() string   { return w.dst }
-func (w *WaylandOp) String() string { return fmt.Sprintf("wayland socket at %q", w.dst) }
+func (w *waylandOp) Path() string   { return w.dst }
+func (w *waylandOp) String() string { return fmt.Sprintf("wayland socket at %q", w.dst) }