bpo-32436: Implement PEP 567 (#5027)

6 files changed, 119 insertions, 2 deletions

diff --git a/PCbuild/_contextvars.vcxproj b/PCbuild/_contextvars.vcxproj
new file mode 100644
index 0000000000..7418e86570
--- /dev/null
+++ b/PCbuild/_contextvars.vcxproj
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|Win32">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|x64">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|Win32">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|x64">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{B8BF1D81-09DC-42D4-B406-4F868B33A89E}</ProjectGuid>
+    <RootNamespace>_contextvars</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="python.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <PropertyGroup>
+    <TargetExt>.pyd</TargetExt>
+  </PropertyGroup>
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+  </PropertyGroup>
+  <ItemGroup>
+    <ClCompile Include="..\Modules\_contextvarsmodule.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="..\PC\python_nt.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="pythoncore.vcxproj">
+      <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
diff --git a/PCbuild/_contextvars.vcxproj.filters b/PCbuild/_contextvars.vcxproj.filters
new file mode 100644
index 0000000000..b3002b7ff6
--- /dev/null
+++ b/PCbuild/_contextvars.vcxproj.filters
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ResourceCompile Include="..\PC\python_nt.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{7CBD8910-233D-4E9A-9164-9BA66C1F0E6D}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\Modules\_contextvarsmodule.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
diff --git a/PCbuild/_decimal.vcxproj b/PCbuild/_decimal.vcxproj
index b14f31093f..df9f600cda 100644
--- a/PCbuild/_decimal.vcxproj
+++ b/PCbuild/_decimal.vcxproj
@@ -121,4 +121,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/PCbuild/pcbuild.proj b/PCbuild/pcbuild.proj
index 848b3b2877..5e341959bd 100644
--- a/PCbuild/pcbuild.proj
+++ b/PCbuild/pcbuild.proj
@@ -49,7 +49,7 @@
     <!-- pyshellext.dll -->
     <Projects Include="pyshellext.vcxproj" />
     <!-- Extension modules -->
-    <ExtensionModules Include="_asyncio;_ctypes;_decimal;_distutils_findvs;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound" />
+    <ExtensionModules Include="_asyncio;_contextvars;_ctypes;_decimal;_distutils_findvs;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound" />
     <!-- Extension modules that require external sources -->
     <ExternalModules Include="_bz2;_lzma;_sqlite3" />
     <!-- _ssl will build _socket as well, which may cause conflicts in parallel builds -->
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index bf2ce669f0..fbcd051213 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -94,6 +94,7 @@
     <ClInclude Include="..\Include\codecs.h" />
     <ClInclude Include="..\Include\compile.h" />
     <ClInclude Include="..\Include\complexobject.h" />
+    <ClInclude Include="..\Include\context.h" />
     <ClInclude Include="..\Include\datetime.h" />
     <ClInclude Include="..\Include\descrobject.h" />
     <ClInclude Include="..\Include\dictobject.h" />
@@ -112,7 +113,9 @@
     <ClInclude Include="..\Include\import.h" />
     <ClInclude Include="..\Include\internal\ceval.h" />
     <ClInclude Include="..\Include\internal\condvar.h" />
+    <ClInclude Include="..\Include\internal\context.h" />
     <ClInclude Include="..\Include\internal\gil.h" />
+    <ClInclude Include="..\Include\internal\hamt.h" />
     <ClInclude Include="..\Include\internal\mem.h" />
     <ClInclude Include="..\Include\internal\pystate.h" />
     <ClInclude Include="..\Include\internal\warnings.h" />
@@ -232,6 +235,7 @@
     <ClCompile Include="..\Modules\_blake2\blake2s_impl.c" />
     <ClCompile Include="..\Modules\_codecsmodule.c" />
     <ClCompile Include="..\Modules\_collectionsmodule.c" />
+    <ClCompile Include="..\Modules\_contextvarsmodule.c" />
     <ClCompile Include="..\Modules\_csv.c" />
     <ClCompile Include="..\Modules\_functoolsmodule.c" />
     <ClCompile Include="..\Modules\_heapqmodule.c" />
@@ -359,6 +363,7 @@
     <ClCompile Include="..\Python\ceval.c" />
     <ClCompile Include="..\Python\codecs.c" />
     <ClCompile Include="..\Python\compile.c" />
+    <ClCompile Include="..\Python\context.c" />
     <ClCompile Include="..\Python\dynamic_annotations.c" />
     <ClCompile Include="..\Python\dynload_win.c" />
     <ClCompile Include="..\Python\errors.c" />
@@ -373,6 +378,7 @@
     <ClCompile Include="..\Python\getplatform.c" />
     <ClCompile Include="..\Python\getversion.c" />
     <ClCompile Include="..\Python\graminit.c" />
+    <ClCompile Include="..\Python\hamt.c" />
     <ClCompile Include="..\Python\import.c" />
     <ClCompile Include="..\Python\importdl.c" />
     <ClCompile Include="..\Python\marshal.c" />
diff --git a/PCbuild/pythoncore.vcxproj.filters b/PCbuild/pythoncore.vcxproj.filters
index 13600cb5c9..a10686c194 100644
--- a/PCbuild/pythoncore.vcxproj.filters
+++ b/PCbuild/pythoncore.vcxproj.filters
@@ -81,6 +81,9 @@
     <ClInclude Include="..\Include\complexobject.h">
       <Filter>Include</Filter>
     </ClInclude>
+    <ClInclude Include="..\Include\context.h">
+      <Filter>Include</Filter>
+    </ClInclude>
     <ClInclude Include="..\Include\datetime.h">
       <Filter>Include</Filter>
     </ClInclude>
@@ -135,9 +138,15 @@
     <ClInclude Include="..\Include\internal\condvar.h">
       <Filter>Include</Filter>
     </ClInclude>
+    <ClInclude Include="..\Include\internal\context.h">
+      <Filter>Include</Filter>
+    </ClInclude>
     <ClInclude Include="..\Include\internal\gil.h">
       <Filter>Include</Filter>
     </ClInclude>
+    <ClInclude Include="..\Include\internal\hamt.h">
+      <Filter>Include</Filter>
+    </ClInclude>
     <ClInclude Include="..\Include\internal\mem.h">
       <Filter>Include</Filter>
     </ClInclude>
@@ -842,6 +851,9 @@
     <ClCompile Include="..\Python\compile.c">
       <Filter>Python</Filter>
     </ClCompile>
+    <ClCompile Include="..\Python\context.h">
+      <Filter>Python</Filter>
+    </ClCompile>
     <ClCompile Include="..\Python\dynamic_annotations.c">
       <Filter>Python</Filter>
     </ClCompile>
@@ -884,6 +896,9 @@
     <ClCompile Include="..\Python\graminit.c">
       <Filter>Python</Filter>
     </ClCompile>
+    <ClCompile Include="..\Python\hamt.h">
+      <Filter>Python</Filter>
+    </ClCompile>
     <ClCompile Include="..\Python\import.c">
       <Filter>Python</Filter>
     </ClCompile>
@@ -998,6 +1013,9 @@
     <ClCompile Include="..\Modules\_asynciomodule.c">
       <Filter>Modules</Filter>
     </ClCompile>
+    <ClCompile Include="..\Modules\_contextvarsmodule.c">
+      <Filter>Modules</Filter>
+    </ClCompile>
     <ClCompile Include="$(zlibDir)\adler32.c">
       <Filter>Modules\zlib</Filter>
     </ClCompile>