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, 14 insertions, 27 deletions

diff --git a/crates/shirabe-semver/src/constraint/match_none_constraint.rs b/crates/shirabe-semver/src/constraint/match_none_constraint.rs
index 587058a..08cb319 100644
--- a/crates/shirabe-semver/src/constraint/match_none_constraint.rs
+++ b/crates/shirabe-semver/src/constraint/match_none_constraint.rs
@@ -1,54 +1,41 @@
 //! ref: composer/vendor/composer/semver/src/Constraint/MatchNoneConstraint.php
 
 use crate::constraint::Bound;
-use crate::constraint::ConstraintInterface;
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct MatchNoneConstraint {
     pub(crate) pretty_string: Option<String>,
 }
 
-impl ConstraintInterface for MatchNoneConstraint {
-    fn matches(&self, _provider: &dyn ConstraintInterface) -> bool {
-        false
+impl MatchNoneConstraint {
+    pub fn new(pretty_string: Option<String>) -> Self {
+        Self { pretty_string }
     }
 
-    fn compile(&self, _other_operator: i64) -> String {
+    pub fn compile(&self, _other_operator: i64) -> String {
         "false".to_string()
     }
 
-    fn set_pretty_string(&mut self, pretty_string: Option<String>) {
-        self.pretty_string = pretty_string;
-    }
-
-    fn get_pretty_string(&self) -> String {
+    pub fn get_pretty_string(&self) -> String {
         if let Some(ref s) = self.pretty_string
             && !s.is_empty()
         {
             return s.clone();
         }
-        self.__to_string()
+        self.to_string()
     }
 
-    fn __to_string(&self) -> String {
-        "[]".to_string()
-    }
-
-    fn clone_box(&self) -> Box<dyn ConstraintInterface> {
-        Box::new(MatchNoneConstraint {
-            pretty_string: self.pretty_string.clone(),
-        })
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
+    pub fn get_upper_bound(&self) -> Bound {
+        Bound::new("0.0.0.0-dev".to_string(), false)
     }
 
-    fn get_upper_bound(&self) -> Bound {
+    pub fn get_lower_bound(&self) -> Bound {
         Bound::new("0.0.0.0-dev".to_string(), false)
     }
+}
 
-    fn get_lower_bound(&self) -> Bound {
-        Bound::new("0.0.0.0-dev".to_string(), false)
+impl std::fmt::Display for MatchNoneConstraint {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "[]")
     }
 }