feat(filter): share platform req filter via Rc, drop clone_box

PlatformRequirementFilterInterface::clone_box (a todo!() trait-object
clone stub) is removed in favor of Rc<dyn ...> shared ownership, matching
PHP's by-reference sharing of the single filter object. Box<dyn ...> is
replaced with Rc<dyn ...> across the factory, Solver/RuleSetGenerator,
VersionSelector, AutoloadGenerator, Installer and the command layer
(BaseCommand/PackageDiscoveryTrait and their impls); clone_box call
sites become Rc clones.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/crates/shirabe/src/installer.rs b/crates/shirabe/src/installer.rs
index 1f63f35..95b9298 100644
--- a/crates/shirabe/src/installer.rs
+++ b/crates/shirabe/src/installer.rs
@@ -144,7 +144,7 @@ pub struct Installer {
     pub(crate) update_allow_list: Option<Vec<String>>,
     pub(crate) update_allow_transitive_dependencies: i64,
     pub(crate) suggested_packages_reporter: SuggestedPackagesReporter,
-    pub(crate) platform_requirement_filter: Box<dyn PlatformRequirementFilterInterface>,
+    pub(crate) platform_requirement_filter: std::rc::Rc<dyn PlatformRequirementFilterInterface>,
     pub(crate) additional_fixed_repository: Option<crate::repository::RepositoryInterfaceHandle>,
     pub(crate) temporary_constraints: IndexMap<String, AnyConstraint>,
 }
@@ -404,7 +404,7 @@ impl Installer {
                 .set_run_scripts(self.run_scripts);
             self.autoload_generator
                 .borrow_mut()
-                .set_platform_requirement_filter(self.platform_requirement_filter.clone_box());
+                .set_platform_requirement_filter(self.platform_requirement_filter.clone());
             let local_repo_handle = self.repository_manager.borrow().get_local_repository();
             let local_repo_ref = local_repo_handle.borrow();
             self.autoload_generator.borrow_mut().dump(
@@ -662,7 +662,7 @@ impl Installer {
         match solver
             .as_mut()
             .unwrap()
-            .solve(&request, Some(self.platform_requirement_filter.clone_box()))
+            .solve(&request, Some(self.platform_requirement_filter.clone()))
         {
             Ok(t) => {
                 lock_transaction = t;
@@ -951,7 +951,7 @@ impl Installer {
         match solver
             .as_mut()
             .unwrap()
-            .solve(&request, Some(self.platform_requirement_filter.clone_box()))
+            .solve(&request, Some(self.platform_requirement_filter.clone()))
         {
             Ok(t) => {
                 non_dev_lock_transaction = t;
@@ -1093,7 +1093,7 @@ impl Installer {
             match solver
                 .as_mut()
                 .unwrap()
-                .solve(&request, Some(self.platform_requirement_filter.clone_box()))
+                .solve(&request, Some(self.platform_requirement_filter.clone()))
             {
                 Ok(lock_transaction) => {
                     solver = None;
@@ -1866,7 +1866,7 @@ impl Installer {
 
     pub fn set_platform_requirement_filter(
         &mut self,
-        platform_requirement_filter: Box<dyn PlatformRequirementFilterInterface>,
+        platform_requirement_filter: std::rc::Rc<dyn PlatformRequirementFilterInterface>,
     ) -> &mut Self {
         self.platform_requirement_filter = platform_requirement_filter;