Use u8 to represent version segments (#7578)

crates/ruff_linter/src/rules/pyupgrade/rules/outdated_version_block.rs

@@ -165,7 +165,7 @@ fn compare_version(target_version: &[u32], py_version: PythonVersion, or_equal:
 
     let (py_major, py_minor) = py_version.as_tuple();
 
-    match if_major.cmp(&py_major) {
+    match if_major.cmp(&py_major.into()) {
         Ordering::Less => true,
         Ordering::Greater => false,
         Ordering::Equal => {
@@ -175,11 +175,11 @@ fn compare_version(target_version: &[u32], py_version: PythonVersion, or_equal:
             if or_equal {
                 // Ex) `sys.version_info <= 3.8`. If Python 3.8 is the minimum supported version,
                 // the condition won't always evaluate to `false`, so we want to return `false`.
-                *if_minor < py_minor
+                *if_minor < py_minor.into()
             } else {
                 // Ex) `sys.version_info < 3.8`. If Python 3.8 is the minimum supported version,
                 // the condition _will_ always evaluate to `false`, so we want to return `true`.
-                *if_minor <= py_minor
+                *if_minor <= py_minor.into()
             }
         }
     }

crates/ruff_linter/src/rules/ruff/typing.rs

@@ -11,7 +11,7 @@ use ruff_source_file::Locator;
 ///
 /// A known type is either a builtin type, any object from the standard library,
 /// or a type from the `typing_extensions` module.
-fn is_known_type(call_path: &CallPath, minor_version: u32) -> bool {
+fn is_known_type(call_path: &CallPath, minor_version: u8) -> bool {
     match call_path.as_slice() {
         ["" | "typing_extensions", ..] => true,
         [module, ..] => is_known_standard_library(minor_version, module),
@@ -72,7 +72,7 @@ impl<'a> TypingTarget<'a> {
         expr: &'a Expr,
         semantic: &SemanticModel,
         locator: &Locator,
-        minor_version: u32,
+        minor_version: u8,
     ) -> Option<Self> {
         match expr {
             Expr::Subscript(ast::ExprSubscript { value, slice, .. }) => {
@@ -141,7 +141,7 @@ impl<'a> TypingTarget<'a> {
         &self,
         semantic: &SemanticModel,
         locator: &Locator,
-        minor_version: u32,
+        minor_version: u8,
     ) -> bool {
         match self {
             TypingTarget::None
@@ -189,12 +189,7 @@ impl<'a> TypingTarget<'a> {
     }
 
     /// Check if the [`TypingTarget`] explicitly allows `Any`.
-    fn contains_any(
-        &self,
-        semantic: &SemanticModel,
-        locator: &Locator,
-        minor_version: u32,
-    ) -> bool {
+    fn contains_any(&self, semantic: &SemanticModel, locator: &Locator, minor_version: u8) -> bool {
         match self {
             TypingTarget::Any => true,
             // `Literal` cannot contain `Any` as it's a dynamic value.
@@ -242,7 +237,7 @@ pub(crate) fn type_hint_explicitly_allows_none<'a>(
     annotation: &'a Expr,
     semantic: &SemanticModel,
     locator: &Locator,
-    minor_version: u32,
+    minor_version: u8,
 ) -> Option<&'a Expr> {
     match TypingTarget::try_from_expr(annotation, semantic, locator, minor_version) {
         None |
@@ -272,7 +267,7 @@ pub(crate) fn type_hint_resolves_to_any(
     annotation: &Expr,
     semantic: &SemanticModel,
     locator: &Locator,
-    minor_version: u32,
+    minor_version: u8,
 ) -> bool {
     match TypingTarget::try_from_expr(annotation, semantic, locator, minor_version) {
         None |

crates/ruff_linter/src/settings/types.rs

@@ -58,7 +58,7 @@ impl PythonVersion {
         Self::Py312
     }
 
-    pub const fn as_tuple(&self) -> (u32, u32) {
+    pub const fn as_tuple(&self) -> (u8, u8) {
         match self {
             Self::Py37 => (3, 7),
             Self::Py38 => (3, 8),
@@ -69,11 +69,11 @@ impl PythonVersion {
         }
     }
 
-    pub const fn major(&self) -> u32 {
+    pub const fn major(&self) -> u8 {
         self.as_tuple().0
     }
 
-    pub const fn minor(&self) -> u32 {
+    pub const fn minor(&self) -> u8 {
         self.as_tuple().1
     }
 

crates/ruff_python_stdlib/src/sys.rs

@@ -1,6 +1,6 @@
 //! This file is generated by `scripts/generate_known_standard_library.py`
 
-pub fn is_known_standard_library(minor_version: u32, module: &str) -> bool {
+pub fn is_known_standard_library(minor_version: u8, module: &str) -> bool {
     matches!(
         (minor_version, module),
         (