From 222012294e953a0f5bf6e442b8a61116235c86b5 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Fri, 5 Jun 2026 02:31:07 +0900
Subject: feat(dependency-resolver): share policy via Rc, drop clone_box

PolicyInterface::clone_box (a todo!() trait-object clone stub) is removed
in favor of Rc<dyn PolicyInterface> shared ownership, matching PHP's
by-reference sharing of the single $policy object across Solver,
RuleSetGenerator and PoolOptimizer. With PoolOptimizer::new now taking an
Rc, Installer::create_pool_optimizer is implemented faithfully
(return new PoolOptimizer($policy)); create_policy returns the shared Rc.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 crates/shirabe/src/dependency_resolver/policy_interface.rs | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'crates/shirabe/src/dependency_resolver/policy_interface.rs')

diff --git a/crates/shirabe/src/dependency_resolver/policy_interface.rs b/crates/shirabe/src/dependency_resolver/policy_interface.rs
index 0b37dc5..b2d1263 100644
--- a/crates/shirabe/src/dependency_resolver/policy_interface.rs
+++ b/crates/shirabe/src/dependency_resolver/policy_interface.rs
@@ -12,8 +12,4 @@ pub trait PolicyInterface: std::fmt::Debug {
         literals: Vec<i64>,
         required_package: Option<String>,
     ) -> Vec<i64>;
-
-    fn clone_box(&self) -> Box<dyn PolicyInterface> {
-        todo!()
-    }
 }
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