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, 7 insertions, 7 deletions

diff --git a/crates/shirabe/src/package/link.rs b/crates/shirabe/src/package/link.rs
index 80a98c7..d606c63 100644
--- a/crates/shirabe/src/package/link.rs
+++ b/crates/shirabe/src/package/link.rs
@@ -1,14 +1,14 @@
 //! ref: composer/src/Composer/Package/Link.php
 
 use shirabe_php_shim::UnexpectedValueException;
-use shirabe_semver::constraint::ConstraintInterface;
+use shirabe_semver::constraint::AnyConstraint;
 
 use crate::package::PackageInterface;
 
 pub struct Link {
     pub(crate) source: String,
     pub(crate) target: String,
-    pub(crate) constraint: Box<dyn ConstraintInterface>,
+    pub(crate) constraint: AnyConstraint,
     pub(crate) description: String,
     pub(crate) pretty_constraint: Option<String>,
 }
@@ -20,7 +20,7 @@ impl Clone for Link {
         Self {
             source: self.source.clone(),
             target: self.target.clone(),
-            constraint: self.constraint.clone_box(),
+            constraint: self.constraint.clone(),
             description: self.description.clone(),
             pretty_constraint: self.pretty_constraint.clone(),
         }
@@ -63,7 +63,7 @@ impl Link {
     pub fn new(
         source: String,
         target: String,
-        constraint: Box<dyn ConstraintInterface>,
+        constraint: AnyConstraint,
         description: Option<String>,
         pretty_constraint: Option<String>,
     ) -> Self {
@@ -94,8 +94,8 @@ impl Link {
         &self.target
     }
 
-    pub fn get_constraint(&self) -> &dyn ConstraintInterface {
-        &*self.constraint
+    pub fn get_constraint(&self) -> &AnyConstraint {
+        &self.constraint
     }
 
     pub fn get_pretty_constraint(&self) -> anyhow::Result<&str> {
@@ -117,7 +117,7 @@ impl Link {
             self.source,
             self.description,
             self.target,
-            self.constraint.__to_string(),
+            self.constraint.to_string(),
         )
     }