refactor(semver): change ConstraintInterface to a closed enum

Replace the dyn ConstraintInterface trait objects with an AnyConstraint
enum closing over its four implementors (Simple, Multi, MatchAll,
MatchNone), mirroring the earlier Rule enum conversion. Rename
constraint.rs to simple_constraint.rs to match the renamed Constraint
type.

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

1 files changed, 8 insertions, 5 deletions

diff --git a/crates/shirabe/src/dependency_resolver/default_policy.rs b/crates/shirabe/src/dependency_resolver/default_policy.rs
index c24e382..cc33b81 100644
--- a/crates/shirabe/src/dependency_resolver/default_policy.rs
+++ b/crates/shirabe/src/dependency_resolver/default_policy.rs
@@ -5,7 +5,8 @@ use std::cell::RefCell;
 
 use indexmap::IndexMap;
 use shirabe_semver::compiling_matcher::CompilingMatcher;
-use shirabe_semver::constraint::Constraint;
+use shirabe_semver::constraint::AnyConstraint;
+use shirabe_semver::constraint::SimpleConstraint;
 
 use crate::dependency_resolver::PolicyInterface;
 use crate::dependency_resolver::Pool;
@@ -209,14 +210,16 @@ impl PolicyInterface for DefaultPolicy {
         if (a.is_dev() && a.get_version().starts_with("dev-"))
             || (b.is_dev() && b.get_version().starts_with("dev-"))
         {
-            let constraint = Constraint::new(operator, b.get_version());
-            let version = Constraint::new("==", a.get_version());
+            let constraint =
+                SimpleConstraint::new(operator.to_string(), b.get_version().to_string(), None);
+            let version =
+                SimpleConstraint::new("==".to_string(), a.get_version().to_string(), None);
             return constraint.match_specific(&version, true);
         }
 
         CompilingMatcher::r#match(
-            &Constraint::new(operator, b.get_version()),
-            Constraint::OP_EQ,
+            &SimpleConstraint::new(operator.to_string(), b.get_version().to_string(), None).into(),
+            SimpleConstraint::OP_EQ,
             a.get_version().to_string(),
         )
     }