refactor(package): introduce Rc<RefCell<_>> handles for packages

PHP packages have reference semantics, so introduce shared-ownership
handles over an AnyPackage enum (PackageInterfaceHandle and friends)
and replace Box<dyn PackageInterface> throughout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/crates/shirabe/src/dependency_resolver/operation/uninstall_operation.rs b/crates/shirabe/src/dependency_resolver/operation/uninstall_operation.rs
index 5e1f6bc..2757146 100644
--- a/crates/shirabe/src/dependency_resolver/operation/uninstall_operation.rs
+++ b/crates/shirabe/src/dependency_resolver/operation/uninstall_operation.rs
@@ -3,19 +3,20 @@
 use crate::dependency_resolver::operation::OperationInterface;
 use crate::dependency_resolver::operation::SolverOperation;
 use crate::package::PackageInterface;
+use crate::package::PackageInterfaceHandle;
 
 #[derive(Debug)]
 pub struct UninstallOperation {
-    pub(crate) package: Box<dyn PackageInterface>,
+    pub(crate) package: PackageInterfaceHandle,
 }
 
 impl UninstallOperation {
-    pub fn new(package: Box<dyn PackageInterface>) -> Self {
+    pub fn new(package: PackageInterfaceHandle) -> Self {
         Self { package }
     }
 
-    pub fn get_package(&self) -> &dyn PackageInterface {
-        self.package.as_ref()
+    pub fn get_package(&self) -> &PackageInterfaceHandle {
+        &self.package
     }
 
     pub fn format(package: &dyn PackageInterface, _lock: bool) -> String {
@@ -42,7 +43,7 @@ impl OperationInterface for UninstallOperation {
     }
 
     fn show(&self, lock: bool) -> String {
-        Self::format(self.package.as_ref(), lock)
+        Self::format(self.package.as_rc().borrow().as_package_interface(), lock)
     }
 
     fn to_string(&self) -> String {