Eliminate uses of deprecated abstractproperty() decorator.

Its docstring with the deprecation notice polluted the documentation.

amaranth/build/plat.py

@@ -1,6 +1,6 @@
 from collections import OrderedDict
 from collections.abc import Iterable
-from abc import ABCMeta, abstractmethod, abstractproperty
+from abc import ABCMeta, abstractmethod
 import os
 import textwrap
 import re
@@ -20,11 +20,11 @@ __all__ = ["Platform", "TemplatedPlatform"]
 
 
 class Platform(ResourceManager, metaclass=ABCMeta):
-    resources      = abstractproperty()
+    resources      = property(abstractmethod(lambda: None))
-    connectors     = abstractproperty()
+    connectors     = property(abstractmethod(lambda: None))
     default_clk    = None
     default_rst    = None
-    required_tools = abstractproperty()
+    required_tools = property(abstractmethod(lambda: None))
 
     def __init__(self):
         super().__init__(self.resources, self.connectors)
@@ -271,9 +271,9 @@ class Platform(ResourceManager, metaclass=ABCMeta):
 
 
 class TemplatedPlatform(Platform):
-    toolchain         = abstractproperty()
+    toolchain         = property(abstractmethod(lambda: None))
-    file_templates    = abstractproperty()
+    file_templates    = property(abstractmethod(lambda: None))
-    command_templates = abstractproperty()
+    command_templates = property(abstractmethod(lambda: None))
 
     build_script_templates = {
         "build_{{name}}.sh": """

amaranth/vendor/intel.py

@@ -1,4 +1,4 @@
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..build import *
@@ -55,9 +55,9 @@ class IntelPlatform(TemplatedPlatform):
 
     toolchain = None # selected when creating platform
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
-    speed   = abstractproperty()
+    speed   = property(abstractmethod(lambda: None))
     suffix  = ""
 
     # Quartus templates

amaranth/vendor/lattice_ecp5.py

@@ -1,4 +1,4 @@
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..build import *
@@ -66,9 +66,9 @@ class LatticeECP5Platform(TemplatedPlatform):
 
     toolchain = None # selected when creating platform
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
-    speed   = abstractproperty()
+    speed   = property(abstractmethod(lambda: None))
     grade   = "C" # [C]ommercial, [I]ndustrial
 
     # Trellis templates

amaranth/vendor/lattice_ice40.py

@@ -1,4 +1,4 @@
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..lib.cdc import ResetSynchronizer
@@ -68,8 +68,8 @@ class LatticeICE40Platform(TemplatedPlatform):
 
     toolchain = None # selected when creating platform
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
 
     # IceStorm templates
 

amaranth/vendor/lattice_machxo_2_3l.py

@@ -1,4 +1,4 @@
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..build import *
@@ -40,9 +40,9 @@ class LatticeMachXO2Or3LPlatform(TemplatedPlatform):
 
     toolchain = "Diamond"
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
-    speed   = abstractproperty()
+    speed   = property(abstractmethod(lambda: None))
     grade   = "C" # [C]ommercial, [I]ndustrial
 
     required_tools = [

amaranth/vendor/quicklogic.py

@@ -1,4 +1,4 @@
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..lib.cdc import ResetSynchronizer
@@ -27,8 +27,8 @@ class QuicklogicPlatform(TemplatedPlatform):
         * ``add_constraints``: inserts commands in XDC file.
     """
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
 
     # Since the QuickLogic version of SymbiFlow toolchain is not upstreamed yet
     # we should distinguish the QuickLogic version from mainline one.

amaranth/vendor/xilinx.py

@@ -1,5 +1,5 @@
 import re
-from abc import abstractproperty
+from abc import abstractmethod
 
 from ..hdl import *
 from ..lib.cdc import ResetSynchronizer
@@ -118,9 +118,9 @@ class XilinxPlatform(TemplatedPlatform):
 
     toolchain = None # selected when creating platform
 
-    device  = abstractproperty()
+    device  = property(abstractmethod(lambda: None))
-    package = abstractproperty()
+    package = property(abstractmethod(lambda: None))
-    speed   = abstractproperty()
+    speed   = property(abstractmethod(lambda: None))
 
     @property
     def _part(self):