modules: use module level information about new and deprecation

Instead of using FeatureNew/FeatureDeprecated in the module.

The goal here is to be able to handle information about modules in a
single place, instead of having to handle it separately. Each module
simply defines some metadata, and then the interpreter handles the rest.

1 files changed, 18 insertions, 0 deletions

diff --git a/mesonbuild/modules/__init__.py b/mesonbuild/modules/__init__.py
index 56370d17f..068194026 100644
--- a/mesonbuild/modules/__init__.py
+++ b/mesonbuild/modules/__init__.py
@@ -15,6 +15,7 @@
 # This file contains the base representation for import('modname')
 
 from __future__ import annotations
+import dataclasses
 import typing as T
 
 from .. import mesonlib
@@ -163,6 +164,17 @@ class ModuleObject(HoldableObject):
 class MutableModuleObject(ModuleObject):
     pass
 
+
+@dataclasses.dataclass
+class ModuleInfo:
+
+    """Metadata about a Module."""
+
+    name: str
+    added: T.Optional[str] = None
+    deprecated: T.Optional[str] = None
+
+
 class NewExtensionModule(ModuleObject):
 
     """Class for modern modules
@@ -170,6 +182,8 @@ class NewExtensionModule(ModuleObject):
     provides the found method.
     """
 
+    INFO: ModuleInfo
+
     def __init__(self) -> None:
         super().__init__()
         self.methods.update({
@@ -203,6 +217,10 @@ class NotFoundExtensionModule(NewExtensionModule):
     provides the found method.
     """
 
+    def __init__(self, name: str) -> None:
+        super().__init__()
+        self.INFO = ModuleInfo(name)
+
     @staticmethod
     def found() -> bool:
         return False