build: add flag to compile V8 with Temporal support

configure.py

@@ -573,6 +573,28 @@
     dest='shared_sqlite_libpath',
     help='a directory to search for the shared sqlite DLL')
 
+shared_optgroup.add_argument('--shared-temporal_capi',
+    action='store_true',
+    dest='shared_temporal_capi',
+    default=None,
+    help='link to a shared temporal_capi DLL instead of static linking')
+
+shared_optgroup.add_argument('--shared-temporal_capi-includes',
+    action='store',
+    dest='shared_temporal_capi_includes',
+    help='directory containing temporal_capi header files')
+
+shared_optgroup.add_argument('--shared-temporal_capi-libname',
+    action='store',
+    dest='shared_temporal_capi_libname',
+    default='temporal_capi',
+    help='alternative lib name to link to [default: %(default)s]')
+
+shared_optgroup.add_argument('--shared-temporal_capi-libpath',
+    action='store',
+    dest='shared_temporal_capi_libpath',
+    help='a directory to search for the shared temporal_capi DLL')
+
 shared_optgroup.add_argument('--shared-zstd',
     action='store_true',
     dest='shared_zstd',
@@ -1009,6 +1031,13 @@
     default=None,
     help='Enable the built-in snapshot compression in V8.')
 
+
+parser.add_argument('--v8-enable-temporal-support',
+    action='store_true',
+    dest='v8_enable_temporal_support',
+    default=None,
+    help='Enable Temporal support in V8.')
+
 parser.add_argument('--node-builtin-modules-path',
     action='store',
     dest='node_builtin_modules_path',
@@ -1802,6 +1831,7 @@ def configure_v8(o, configs):
   o['variables']['v8_enable_external_code_space'] = 1 if options.enable_pointer_compression else 0
   o['variables']['v8_enable_31bit_smis_on_64bit_arch'] = 1 if options.enable_pointer_compression else 0
   o['variables']['v8_enable_extensible_ro_snapshot'] = 0
+  o['variables']['v8_enable_temporal_support'] = 1 if options.v8_enable_temporal_support else 0
   o['variables']['v8_trace_maps'] = 1 if options.trace_maps else 0
   o['variables']['node_use_v8_platform'] = b(not options.without_v8_platform)
   o['variables']['node_use_bundled_v8'] = b(not options.without_bundled_v8)
@@ -2357,6 +2387,7 @@ def make_bin_override():
 configure_library('nghttp3', output, pkgname='libnghttp3')
 configure_library('ngtcp2', output, pkgname='libngtcp2')
 configure_sqlite(output);
+configure_library('temporal_capi', output)
 configure_library('uvwasi', output)
 configure_library('zstd', output, pkgname='libzstd')
 configure_v8(output, configurations)

shell.nix

@@ -1,16 +1,20 @@
 {
   pkgs ? import ./tools/nix/pkgs.nix { },
   loadJSBuiltinsDynamically ? true, # Load `lib/**.js` from disk instead of embedding
+  withTemporal ? false,
   ncu-path ? null, # Provide this if you want to use a local version of NCU
   icu ? pkgs.icu,
-  sharedLibDeps ? import ./tools/nix/sharedLibDeps.nix { inherit pkgs; },
+  sharedLibDeps ? import ./tools/nix/sharedLibDeps.nix { inherit pkgs withTemporal; },
   ccache ? pkgs.ccache,
   ninja ? pkgs.ninja,
   devTools ? import ./tools/nix/devTools.nix { inherit pkgs ncu-path; },
   benchmarkTools ? import ./tools/nix/benchmarkTools.nix { inherit pkgs; },
   extraConfigFlags ? [
     "--without-npm"
     "--debug-node"
+  ]
+  ++ pkgs.lib.optionals withTemporal [
+    "--v8-enable-temporal-support"
   ],
 }:
 
@@ -22,7 +26,7 @@ in
 pkgs.mkShell {
   inherit (pkgs.nodejs_latest) nativeBuildInputs;
 
-  buildInputs = builtins.attrValues sharedLibDeps ++ pkgs.lib.optionals useSharedICU [ icu ];
+  buildInputs = builtins.attrValues sharedLibDeps ++ pkgs.lib.optional useSharedICU icu;
 
   packages = [
     ccache

tools/nix/sharedLibDeps.nix

@@ -1,5 +1,6 @@
 {
   pkgs ? import ./pkgs.nix { },
+  withTemporal ? false,
 }:
 {
   inherit (pkgs)
@@ -45,3 +46,6 @@
     ];
   });
 }
+// (pkgs.lib.optionalAttrs withTemporal {
+  inherit (pkgs) temporal_capi;
+})

tools/v8_gypfiles/features.gypi

@@ -295,6 +295,10 @@
     # add a dependency on the ICU library.
     'v8_enable_i18n_support%': 1,
 
+    # Enable Temporal API. Enabling this feature will
+    # add a dependency on the temporal_rs library.
+    'v8_enable_temporal_support%': 0,
+
     # Lite mode disables a number of performance optimizations to reduce memory
     # at the cost of performance.
     # Sets --DV8_LITE_MODE.
@@ -410,6 +414,9 @@
       ['v8_enable_i18n_support==1', {
         'defines': ['V8_INTL_SUPPORT',],
       }],
+      ['v8_enable_temporal_support==1', {
+        'defines': ['V8_TEMPORAL_SUPPORT',],
+      }],
       # Refs: https://github.com/nodejs/node/pull/23801
       # ['v8_enable_handle_zapping==1', {
       #  'defines': ['ENABLE_HANDLE_ZAPPING',],

tools/v8_gypfiles/v8.gyp

@@ -27,6 +27,11 @@
           '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "torque_files =.*?v8_enable_i18n_support.*?torque_files \\+= ")',
         ],
       }],
+      ['v8_enable_temporal_support==1', {
+        'torque_files': [
+          '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "torque_files =.*?v8_enable_temporal_support.*?torque_files \\+= ")',
+        ],
+      }],
       ['v8_enable_webassembly==1', {
         'torque_files': [
           '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "torque_files =.*?v8_enable_webassembly.*?torque_files \\+= ")',
@@ -660,6 +665,11 @@
               '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_enable_snapshot_compression.*?sources \\+= ")',
             ],
           }],
+          ['v8_enable_temporal_support==1', {
+            'sources': [
+              '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_enable_temporal_support.*?sources \\+= ")',
+            ],
+          }],
           ['v8_enable_sparkplug==1', {
             'sources': [
               '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_enable_sparkplug.*?sources \\+= ")',
@@ -1117,6 +1127,11 @@
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_enable_snapshot_compression.*?sources \\+= ")',
           ],
         }],
+        ['v8_enable_temporal_support==1', {
+          'sources': [
+            '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_enable_temporal_support.*?sources \\+= ")',
+          ],
+        }],
         ['v8_enable_sparkplug==1', {
           'sources': [
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_enable_sparkplug.*?sources \\+= ")',