refactor(scalars): generalize the test harness (catalog-driven shape, temporal_values!, unified scalar_matrix!)

crates/eql-scalars/src/lib.rs

@@ -128,6 +128,13 @@ impl ScalarKind {
         self.as_bounded_int().is_some()
     }
 
+    /// True for chrono-backed temporal kinds (`Date`; `Timestamptz` once added) —
+    /// the kinds whose test `ScalarType` impl is generated by `temporal_values!`
+    /// rather than the integer proc-macro path. Replaces the `[temporal]` marker.
+    pub const fn is_temporal(self) -> bool {
+        matches!(self, ScalarKind::Date)
+    }
+
     /// The Rust type name as it appears in generated source (e.g. `"i32"`).
     pub const fn rust_type(self) -> &'static str {
         match self {
@@ -360,6 +367,14 @@ impl ScalarSpec {
     pub fn domain_name(&self, domain: &DomainSpec) -> String {
         format!("{}{}", self.token, domain.suffix)
     }
+
+    /// True when this type declares no ordered (`_ord`) domain — i.e. equality-only
+    /// (storage + `_eq`). Replaces the future `[eq_only]` marker: the domain set
+    /// already carries this. The `_ord_ore` twin only appears alongside `_ord`, so
+    /// testing `_ord` suffices.
+    pub fn is_eq_only(&self) -> bool {
+        !self.domains.iter().any(|d| d.suffix == "_ord")
+    }
 }
 
 /// Domains shared by every ordered-integer scalar, in manifest file order:
@@ -650,6 +665,23 @@ mod rust_tests {
             }
         }
     }
+
+    #[test]
+    fn is_temporal_classifies_chrono_kinds() {
+        assert!(ScalarKind::Date.is_temporal());
+        assert!(!ScalarKind::I16.is_temporal());
+        assert!(!ScalarKind::I32.is_temporal());
+        assert!(!ScalarKind::I64.is_temporal());
+        // Timestamptz arrives in Phase 5; assert it here once present.
+    }
+
+    #[test]
+    fn is_eq_only_detects_absence_of_ord_domains() {
+        let int4 = CATALOG.iter().find(|s| s.token == "int4").unwrap();
+        assert!(!int4.is_eq_only(), "int4 is ordered");
+        let date = CATALOG.iter().find(|s| s.token == "date").unwrap();
+        assert!(!date.is_eq_only(), "date is ordered");
+    }
 }
 
 #[cfg(test)]

crates/eql-tests-macros/Cargo.toml

@@ -11,3 +11,4 @@ proc-macro = true
 syn = { version = "2", features = ["full"] }
 quote = "1"
 proc-macro2 = "1"
+eql-scalars = { path = "../eql-scalars" }