use type aliases

Author: danieleades

stubs/docutils/docutils/statemachine.pyi

@@ -1,9 +1,11 @@
 from collections.abc import Callable, Generator, Iterator, Sequence
 from re import Match, Pattern
-from typing import Any, Generic, TypeVar, overload
+from typing import Any, Generic, TypeAlias, TypeVar, overload
 from typing_extensions import Self
 
 _Context = TypeVar("_Context")
+_TransitionResult: TypeAlias = tuple[_Context, str | None, list[str]]
+_TransitionMethod: TypeAlias = Callable[[Match[str], _Context, str], _TransitionResult[_Context]]
 
 class StateMachine(Generic[_Context]):
     input_lines: StringList | None
@@ -40,7 +42,7 @@ class StateMachine(Generic[_Context]):
     def get_text_block(self, flush_left: bool = False) -> StringList: ...
     def check_line(
         self, context: _Context, state: State[_Context], transitions: list[str] | None = ...
-    ) -> tuple[_Context, str | None, list[str]]: ...
+    ) -> _TransitionResult[_Context]: ...
     def add_state(self, state_class: type[State[_Context]]) -> None: ...
     def add_states(self, state_classes: Sequence[type[State[_Context]]]) -> None: ...
     def runtime_init(self) -> None: ...
@@ -67,24 +69,16 @@ class State(Generic[_Context]):
     def remove_transition(self, name: str) -> None: ...
     def make_transition(
         self, name: str, next_state: str | None = None
-    ) -> tuple[Pattern[str], Callable[[Match[str], _Context, str], tuple[_Context, str | None, list[str]]], str]: ...
+    ) -> tuple[Pattern[str], _TransitionMethod[_Context], str]: ...
     def make_transitions(
         self, name_list: list[str | tuple[str] | tuple[str, str]]
-    ) -> tuple[
-        list[str],
-        dict[str, tuple[Pattern[str], Callable[[Match[str], _Context, str], tuple[_Context, str | None, list[str]]], str]],
-    ]: ...
+    ) -> tuple[list[str], dict[str, tuple[Pattern[str], _TransitionMethod[_Context], str]]]: ...
     def no_match(
-        self,
-        context: Any,
-        transitions: tuple[
-            list[str],
-            dict[str, tuple[Pattern[str], Callable[[Match[str], _Context, str], tuple[_Context, str | None, list[str]]], str]],
-        ],
-    ) -> tuple[_Context, str | None, list[str]]: ...
+        self, context: Any, transitions: tuple[list[str], dict[str, tuple[Pattern[str], _TransitionMethod[_Context], str]]]
+    ) -> _TransitionResult[_Context]: ...
     def bof(self, context: _Context) -> tuple[_Context, list[str]]: ...
     def eof(self, context: _Context) -> list[str]: ...
-    def nop(self, match: Match[str], context: _Context, next_state: str) -> tuple[_Context, str | None, list[str]]: ...
+    def nop(self, match: Match[str], context: _Context, next_state: str) -> _TransitionResult[_Context]: ...
 
 class StateMachineWS(StateMachine[_Context]):
     def get_indented(self, until_blank: bool = False, strip_indent: bool = True) -> tuple[StringList, int, int, bool]: ...
@@ -104,12 +98,10 @@ class StateWS(State[_Context]):
     ws_initial_transitions: Sequence[str]
     def __init__(self, state_machine: StateMachine[_Context], debug: bool = False) -> None: ...
     def add_initial_transitions(self) -> None: ...
-    def blank(self, match: Match[str], context: _Context, next_state: str) -> tuple[_Context, str | None, list[str]]: ...
-    def indent(self, match: Match[str], context: _Context, next_state: str) -> tuple[_Context, str | None, list[str]]: ...
-    def known_indent(self, match: Match[str], context: _Context, next_state: str) -> tuple[_Context, str | None, list[str]]: ...
-    def first_known_indent(
-        self, match: Match[str], context: _Context, next_state: str
-    ) -> tuple[_Context, str | None, list[str]]: ...
+    def blank(self, match: Match[str], context: _Context, next_state: str) -> _TransitionResult[_Context]: ...
+    def indent(self, match: Match[str], context: _Context, next_state: str) -> _TransitionResult[_Context]: ...
+    def known_indent(self, match: Match[str], context: _Context, next_state: str) -> _TransitionResult[_Context]: ...
+    def first_known_indent(self, match: Match[str], context: _Context, next_state: str) -> _TransitionResult[_Context]: ...
 
 class _SearchOverride:
     def match(self, pattern: Pattern[str]) -> Match[str]: ...