feat(unstable): add Temporal API support

cli/main.rs

@@ -315,22 +315,28 @@ pub(crate) static UNSTABLE_GRANULAR_FLAGS: &[(
     "Enable unstable net APIs",
     7,
   ),
+  (
+    "temporal",
+    "Enable unstable Temporal API",
+    // Not used in JS
+    8,
+  ),
   (
     "unsafe-proto",
     "Enable unsafe __proto__ support. This is a security risk.",
     // This number is used directly in the JS code. Search
     // for "unstableFeatures" to see where it's used.
-    8,
+    9,
   ),
   (
     deno_runtime::deno_webgpu::UNSTABLE_FEATURE_NAME,
     "Enable unstable `WebGPU` API",
-    9,
+    10,
   ),
   (
     deno_runtime::ops::worker_host::UNSTABLE_FEATURE_NAME,
     "Enable unstable Web Worker APIs",
-    10,
+    11,
   ),
 ];
 
@@ -394,7 +400,15 @@ pub fn main() {
       // Using same default as VSCode:
       // https://github.com/microsoft/vscode/blob/48d4ba271686e8072fc6674137415bc80d936bc7/extensions/typescript-language-features/src/configuration/configuration.ts#L213-L214
       DenoSubcommand::Lsp => vec!["--max-old-space-size=3072".to_string()],
-      _ => vec![],
+      _ => {
+        if flags.unstable
+          || flags.unstable_features.contains(&"temporal".to_string())
+        {
+          vec!["--harmony-temporal".to_string()]
+        } else {
+          vec![]
+        }
+      }
     };
     init_v8_flags(&default_v8_flags, &flags.v8_flags, get_v8_flags_from_env());
     deno_core::JsRuntime::init_platform(None);

cli/tests/integration/run_tests.rs

@@ -4911,3 +4911,17 @@ Warning Sloppy module resolution (hint: specify path to index.tsx file in direct
 ",
     );
 }
+
+itest!(unstable_temporal_api {
+  args: "run --unstable-temporal --check run/unstable_temporal_api/main.ts",
+  output: "run/unstable_temporal_api/main.out",
+  http_server: false,
+  exit_code: 0,
+});
+
+itest!(unstable_temporal_api_missing_flag {
+  args: "run run/unstable_temporal_api/missing_flag.js",
+  output: "run/unstable_temporal_api/missing_flag.out",
+  http_server: false,
+  exit_code: 1,
+});

cli/tests/testdata/run/unstable_temporal_api/main.out

@@ -0,0 +1,12 @@
+Check [WILDCARD]
+Temporal.Now [WILDCARD]
+Temporal.Instant 1969-07-20T20:17:00Z
+Temporal.ZonedDateTime 1995-12-07T03:24:30.0000035-08:00[America/Los_Angeles]
+Temporal.PlainDate 2006-08-24
+Temporal.PlainTime 19:39:09.068346205
+Temporal.PlainDateTime 1995-12-07T15:00:00
+Temporal.PlainYearMonth 2020-10
+Temporal.PlainMonthDay 07-14
+Temporal.Duration PT130H20M
+Temporal.TimeZone Africa/Cairo
+Temporal.Calendar 1999-12-31

cli/tests/testdata/run/unstable_temporal_api/main.ts

@@ -0,0 +1,71 @@
+console.log("Temporal.Now", Temporal.Now.instant());
+console.log(
+  "Temporal.Instant",
+  Temporal.Instant.from("1969-07-20T20:17Z"),
+);
+console.log(
+  "Temporal.ZonedDateTime",
+  Temporal.ZonedDateTime.from({
+    timeZone: "America/Los_Angeles",
+    year: 1995,
+    month: 12,
+    day: 7,
+    hour: 3,
+    minute: 24,
+    second: 30,
+    millisecond: 0,
+    microsecond: 3,
+    nanosecond: 500,
+  }),
+);
+console.log(
+  "Temporal.PlainDate",
+  Temporal.PlainDate.from({ year: 2006, month: 8, day: 24 }),
+);
+console.log(
+  "Temporal.PlainTime",
+  Temporal.PlainTime.from({
+    hour: 19,
+    minute: 39,
+    second: 9,
+    millisecond: 68,
+    microsecond: 346,
+    nanosecond: 205,
+  }),
+);
+console.log(
+  "Temporal.PlainDateTime",
+  Temporal.PlainDateTime.from({
+    year: 1995,
+    month: 12,
+    day: 7,
+    hour: 15,
+  }),
+);
+console.log(
+  "Temporal.PlainYearMonth",
+  Temporal.PlainYearMonth.from({ year: 2020, month: 10 }),
+);
+console.log(
+  "Temporal.PlainMonthDay",
+  Temporal.PlainMonthDay.from({ month: 7, day: 14 }),
+);
+console.log(
+  "Temporal.Duration",
+  Temporal.Duration.from({
+    hours: 130,
+    minutes: 20,
+  }),
+);
+console.log(
+  "Temporal.TimeZone",
+  Temporal.TimeZone.from("Africa/Cairo"),
+);
+console.log(
+  "Temporal.Calendar",
+  Temporal.Calendar.from("iso8601").dateFromFields({
+    year: 1999,
+    month: 12,
+    day: 31,
+  }, {}),
+);

cli/tests/testdata/run/unstable_temporal_api/missing_flag.js

@@ -0,0 +1 @@
+Temporal.Now.instant();

cli/tests/testdata/run/unstable_temporal_api/missing_flag.out

@@ -0,0 +1,4 @@
+error: Uncaught (in promise) ReferenceError: Temporal is not defined
+Temporal.Now.instant();
+^
+    at [WILDCARD]missing_flag.js:1:1