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, 169 insertions, 0 deletions

diff --git a/crates/shirabe-semver/src/constraint/any_constraint.rs b/crates/shirabe-semver/src/constraint/any_constraint.rs
new file mode 100644
index 0000000..b61a36f
--- /dev/null
+++ b/crates/shirabe-semver/src/constraint/any_constraint.rs
@@ -0,0 +1,169 @@
+//! ref: composer/vendor/composer/semver/src/Constraint/ConstraintInterface.php
+
+use crate::constraint::Bound;
+use crate::constraint::MatchAllConstraint;
+use crate::constraint::MatchNoneConstraint;
+use crate::constraint::MultiConstraint;
+use crate::constraint::SimpleConstraint;
+
+/// Corresponds to PHP's `ConstraintInterface`.
+#[derive(Clone, Debug)]
+pub enum AnyConstraint {
+    Simple(SimpleConstraint),
+    Multi(MultiConstraint),
+    MatchAll(MatchAllConstraint),
+    MatchNone(MatchNoneConstraint),
+}
+
+impl AnyConstraint {
+    pub fn matches(&self, provider: &AnyConstraint) -> bool {
+        match self {
+            Self::MatchAll(_) => true,
+            Self::MatchNone(_) => false,
+            Self::Simple(c) => match provider.as_constraint() {
+                Some(p) => c.match_specific(p, false),
+                None => provider.matches(self),
+            },
+            Self::Multi(m) => {
+                if !m.conjunctive {
+                    m.constraints.iter().any(|sub| provider.matches(sub))
+                } else if provider.is_disjunctive() {
+                    provider.matches(self)
+                } else {
+                    m.constraints.iter().all(|sub| provider.matches(sub))
+                }
+            }
+        }
+    }
+
+    pub fn compile(&self, other_operator: i64) -> String {
+        match self {
+            Self::Simple(c) => c.compile(other_operator),
+            Self::Multi(c) => c.compile(other_operator),
+            Self::MatchAll(c) => c.compile(other_operator),
+            Self::MatchNone(c) => c.compile(other_operator),
+        }
+    }
+
+    pub fn get_upper_bound(&self) -> Bound {
+        match self {
+            Self::Simple(c) => c.get_upper_bound(),
+            Self::Multi(c) => c.get_upper_bound(),
+            Self::MatchAll(c) => c.get_upper_bound(),
+            Self::MatchNone(c) => c.get_upper_bound(),
+        }
+    }
+
+    pub fn get_lower_bound(&self) -> Bound {
+        match self {
+            Self::Simple(c) => c.get_lower_bound(),
+            Self::Multi(c) => c.get_lower_bound(),
+            Self::MatchAll(c) => c.get_lower_bound(),
+            Self::MatchNone(c) => c.get_lower_bound(),
+        }
+    }
+
+    pub fn get_pretty_string(&self) -> String {
+        match self {
+            Self::Simple(c) => c.get_pretty_string(),
+            Self::Multi(c) => c.get_pretty_string(),
+            Self::MatchAll(c) => c.get_pretty_string(),
+            Self::MatchNone(c) => c.get_pretty_string(),
+        }
+    }
+
+    /// PHP `$c instanceof MultiConstraint && $c->isDisjunctive()`.
+    pub fn is_disjunctive(&self) -> bool {
+        matches!(self, Self::Multi(m) if !m.conjunctive)
+    }
+
+    /// PHP `$c instanceof Constraint`.
+    pub fn is_constraint(&self) -> bool {
+        matches!(self, Self::Simple(_))
+    }
+
+    pub fn get_operator(&self) -> &'static str {
+        match self {
+            Self::Simple(c) => c.get_operator(),
+            _ => "",
+        }
+    }
+
+    pub fn get_version(&self) -> &str {
+        match self {
+            Self::Simple(c) => c.get_version(),
+            _ => "",
+        }
+    }
+
+    pub fn as_constraint(&self) -> Option<&SimpleConstraint> {
+        match self {
+            Self::Simple(c) => Some(c),
+            _ => None,
+        }
+    }
+
+    pub fn as_multi_constraint(&self) -> Option<&MultiConstraint> {
+        match self {
+            Self::Multi(c) => Some(c),
+            _ => None,
+        }
+    }
+
+    pub fn is_match_all(&self) -> bool {
+        matches!(self, Self::MatchAll(_))
+    }
+
+    pub fn is_match_none(&self) -> bool {
+        matches!(self, Self::MatchNone(_))
+    }
+
+    /// PHP exposes `ConstraintInterface::setPrettyString()` and defaults the
+    /// pretty string to the constraint's string form when unset. This port takes
+    /// the pretty string at construction instead; this setter exists only so
+    /// `MultiConstraint::create()` can apply the pretty string PHP sets on its
+    /// (possibly polymorphic) result.
+    pub(crate) fn set_pretty_string(&mut self, pretty_string: Option<String>) {
+        match self {
+            Self::Simple(c) => c.pretty_string = pretty_string,
+            Self::Multi(c) => c.pretty_string = pretty_string,
+            Self::MatchAll(c) => c.pretty_string = pretty_string,
+            Self::MatchNone(c) => c.pretty_string = pretty_string,
+        }
+    }
+}
+
+impl From<SimpleConstraint> for AnyConstraint {
+    fn from(c: SimpleConstraint) -> Self {
+        Self::Simple(c)
+    }
+}
+
+impl From<MultiConstraint> for AnyConstraint {
+    fn from(c: MultiConstraint) -> Self {
+        Self::Multi(c)
+    }
+}
+
+impl From<MatchAllConstraint> for AnyConstraint {
+    fn from(c: MatchAllConstraint) -> Self {
+        Self::MatchAll(c)
+    }
+}
+
+impl From<MatchNoneConstraint> for AnyConstraint {
+    fn from(c: MatchNoneConstraint) -> Self {
+        Self::MatchNone(c)
+    }
+}
+
+impl std::fmt::Display for AnyConstraint {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Simple(c) => write!(f, "{}", c),
+            Self::Multi(c) => write!(f, "{}", c),
+            Self::MatchAll(c) => write!(f, "{}", c),
+            Self::MatchNone(c) => write!(f, "{}", c),
+        }
+    }
+}