typing: Fix code review

3 files changed, 12 insertions, 37 deletions

diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 369ac7b..7db490a 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -372,22 +372,22 @@ a hard error in the future.'''.format(name))
         if not hasattr(self, 'typename'):
             raise RuntimeError('Target type is not set for target class "{}". This is a bug'.format(type(self).__name__))
 
-    def __lt__(self, other: object) -> T.Union[bool, type(NotImplemented)]:
+    def __lt__(self, other: object) -> bool:
         if not hasattr(other, 'get_id') and not callable(other.get_id):
             return NotImplemented
         return self.get_id() < other.get_id()
 
-    def __le__(self, other: object) -> T.Union[bool, type(NotImplemented)]:
+    def __le__(self, other: object) -> bool:
         if not hasattr(other, 'get_id') and not callable(other.get_id):
             return NotImplemented
         return self.get_id() <= other.get_id()
 
-    def __gt__(self, other: object) -> T.Union[bool, type(NotImplemented)]:
+    def __gt__(self, other: object) -> bool:
         if not hasattr(other, 'get_id') and not callable(other.get_id):
             return NotImplemented
         return self.get_id() > other.get_id()
 
-    def __ge__(self, other: object) -> T.Union[bool, type(NotImplemented)]:
+    def __ge__(self, other: object) -> bool:
         if not hasattr(other, 'get_id') and not callable(other.get_id):
             return NotImplemented
         return self.get_id() >= other.get_id()
diff --git a/mesonbuild/envconfig.py b/mesonbuild/envconfig.py
index 836ec06..3c562f3 100644
--- a/mesonbuild/envconfig.py
+++ b/mesonbuild/envconfig.py
@@ -147,7 +147,7 @@ class Properties:
             return p
         return mesonlib.listify(p)
 
-    def __eq__(self, other: object) -> 'T.Union[bool, NotImplemented]':
+    def __eq__(self, other: object) -> bool:
         if isinstance(other, type(self)):
             return self.properties == other.properties
         return NotImplemented
@@ -172,8 +172,8 @@ class MachineInfo:
         self.endian = endian
         self.is_64_bit = cpu_family in CPU_FAMILES_64_BIT  # type: bool
 
-    def __eq__(self, other: object) -> 'T.Union[bool, NotImplemented]':
-        if self.__class__ is not other.__class__ or not isinstance(other, MachineInfo):
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, MachineInfo):
             return NotImplemented
         return \
             self.system == other.system and \
@@ -181,8 +181,8 @@ class MachineInfo:
             self.cpu == other.cpu and \
             self.endian == other.endian
 
-    def __ne__(self, other: object) -> 'T.Union[bool, NotImplemented]':
-        if self.__class__ is not other.__class__ or not isinstance(other, MachineInfo):
+    def __ne__(self, other: object) -> bool:
+        if not isinstance(other, MachineInfo):
             return NotImplemented
         return not self.__eq__(other)
 
diff --git a/mesonbuild/mesonlib.py b/mesonbuild/mesonlib.py
index 6cc3c08..f649738 100644
--- a/mesonbuild/mesonlib.py
+++ b/mesonbuild/mesonlib.py
@@ -19,7 +19,7 @@ import stat
 import time
 import platform, subprocess, operator, os, shlex, shutil, re
 import collections
-from enum import Enum
+from enum import IntEnum
 from functools import lru_cache, wraps
 from itertools import tee, filterfalse
 import typing as T
@@ -323,32 +323,7 @@ def classify_unity_sources(compilers: T.Iterable['CompilerType'], sources: T.Ite
     return compsrclist
 
 
-class OrderedEnum(Enum):
-    """
-    An Enum which additionally offers homogeneous ordered comparison.
-    """
-    def __ge__(self, other: object) -> bool:
-        if self.__class__ is other.__class__ and isinstance(other, OrderedEnum)and isinstance(self.value, int) and isinstance(other.value, int):
-            return self.value >= other.value
-        return NotImplemented
-
-    def __gt__(self, other: object) -> bool:
-        if self.__class__ is other.__class__ and isinstance(other, OrderedEnum)and isinstance(self.value, int) and isinstance(other.value, int):
-            return self.value > other.value
-        return NotImplemented
-
-    def __le__(self, other: object) -> bool:
-        if self.__class__ is other.__class__ and isinstance(other, OrderedEnum)and isinstance(self.value, int) and isinstance(other.value, int):
-            return self.value <= other.value
-        return NotImplemented
-
-    def __lt__(self, other: object) -> bool:
-        if self.__class__ is other.__class__ and isinstance(other, OrderedEnum) and isinstance(self.value, int) and isinstance(other.value, int):
-            return self.value < other.value
-        return NotImplemented
-
-
-class MachineChoice(OrderedEnum):
+class MachineChoice(IntEnum):
 
     """Enum class representing one of the two abstract machine names used in
     most places: the build, and host, machines.
@@ -1572,7 +1547,7 @@ def path_is_in_root(path: Path, root: Path, resolve: bool = False) -> bool:
         return False
     return True
 
-class LibType(Enum):
+class LibType(IntEnum):
 
     """Enumeration for library types."""