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/acl.go

@@ -9,33 +9,33 @@ import (
 	"hakurei.app/system/acl"
 )
 
-// UpdatePerm appends [ACLUpdateOp] to [I] with the [Process] criteria.
+// UpdatePerm calls UpdatePermType with the [Process] criteria.
 func (sys *I) UpdatePerm(path string, perms ...acl.Perm) *I {
 	sys.UpdatePermType(Process, path, perms...)
 	return sys
 }
 
-// UpdatePermType appends [ACLUpdateOp] to [I].
+// UpdatePermType maintains [acl.Perms] on a file until its [Enablement] is no longer satisfied.
 func (sys *I) UpdatePermType(et Enablement, path string, perms ...acl.Perm) *I {
-	sys.ops = append(sys.ops, &ACLUpdateOp{et, path, perms})
+	sys.ops = append(sys.ops, &aclUpdateOp{et, path, perms})
 	return sys
 }
 
-// ACLUpdateOp maintains [acl.Perms] on a file until its [Enablement] is no longer satisfied.
-type ACLUpdateOp struct {
+// aclUpdateOp implements [I.UpdatePermType].
+type aclUpdateOp struct {
 	et    Enablement
 	path  string
 	perms acl.Perms
 }
 
-func (a *ACLUpdateOp) Type() Enablement { return a.et }
+func (a *aclUpdateOp) Type() Enablement { return a.et }
 
-func (a *ACLUpdateOp) apply(sys *I) error {
+func (a *aclUpdateOp) apply(sys *I) error {
 	sys.verbose("applying ACL", a)
 	return newOpError("acl", sys.aclUpdate(a.path, sys.uid, a.perms...), false)
 }
 
-func (a *ACLUpdateOp) revert(sys *I, ec *Criteria) error {
+func (a *aclUpdateOp) revert(sys *I, ec *Criteria) error {
 	if ec.hasType(a.Type()) {
 		sys.verbose("stripping ACL", a)
 		err := sys.aclUpdate(a.path, sys.uid)
@@ -51,17 +51,17 @@ func (a *ACLUpdateOp) revert(sys *I, ec *Criteria) error {
 	}
 }
 
-func (a *ACLUpdateOp) Is(o Op) bool {
-	target, ok := o.(*ACLUpdateOp)
+func (a *aclUpdateOp) Is(o Op) bool {
+	target, ok := o.(*aclUpdateOp)
 	return ok && a != nil && target != nil &&
 		a.et == target.et &&
 		a.path == target.path &&
 		slices.Equal(a.perms, target.perms)
 }
 
-func (a *ACLUpdateOp) Path() string { return a.path }
+func (a *aclUpdateOp) Path() string { return a.path }
 
-func (a *ACLUpdateOp) String() string {
+func (a *aclUpdateOp) String() string {
 	return fmt.Sprintf("%s type: %s path: %q",
 		a.perms, TypeString(a.et), a.path)
 }