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Port PR #62628: Add Date.toTemporalInstant to getScriptTargetFeatures #2810

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Merged
jakebailey merged 3 commits into from
Feb 18, 2026
+11 −21
Merged

Port PR #62628: Add Date.toTemporalInstant to getScriptTargetFeatures #2810

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dc6f38c
Initial plan
Copilot Feb 17, 2026
24b3881
Add Date entry with toTemporalInstant to getFeatureMap for esnext.tem…
Copilot Feb 17, 2026
adc2731
Merge branch 'main' into copilot/port-lib-esnext-temporal
jakebailey Feb 17, 2026
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3 changes: 3 additions & 0 deletions internal/checker/utilities.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1531,6 +1531,9 @@ var getFeatureMap = sync.OnceValue(func() map[string][]FeatureMapEntry {
"AsyncDisposableStack": {
{lib: "esnext", props: []string{}},
},
"Date": {
{lib: "esnext", props: []string{"toTemporalInstant"}},
},
}
})

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4 changes: 2 additions & 2 deletions ...ines/reference/submodule/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.errors.txt
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Expand Up @@ -31,7 +31,7 @@ doYouNeedToChangeYourTargetLibraryES2016Plus.ts(39,47): error TS2550: Property '
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(40,20): error TS2583: Cannot find name 'BigInt'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2020' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(43,32): error TS2550: Property 'any' does not exist on type 'PromiseConstructor'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2021' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(44,33): error TS2550: Property 'replaceAll' does not exist on type '""'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2021' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2339: Property 'toTemporalInstant' does not exist on type 'Date'.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2550: Property 'toTemporalInstant' does not exist on type 'Date'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.


==== doYouNeedToChangeYourTargetLibraryES2016Plus.ts (34 errors) ====
Expand Down Expand Up @@ -149,5 +149,5 @@ doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2339: Property '
// esnext
const testDateToTemporalInstant = new Date().toTemporalInstant();
~~~~~~~~~~~~~~~~~
!!! error TS2339: Property 'toTemporalInstant' does not exist on type 'Date'.
!!! error TS2550: Property 'toTemporalInstant' does not exist on type 'Date'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.

25 changes: 6 additions & 19 deletions ...reference/submodule/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.errors.txt.diff
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Expand Up @@ -14,22 +14,16 @@
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(17,111): error TS2550: Property 'groups' does not exist on type 'RegExpExecArray'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(18,33): error TS2550: Property 'dotAll' does not exist on type 'RegExp'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(19,38): error TS2550: Property 'PluralRules' does not exist on type 'typeof Intl'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
@@= skipped -29, +23 lines =@@
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(40,20): error TS2583: Cannot find name 'BigInt'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2020' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(43,32): error TS2550: Property 'any' does not exist on type 'PromiseConstructor'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2021' or later.
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(44,33): error TS2550: Property 'replaceAll' does not exist on type '""'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2021' or later.
-doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2550: Property 'toTemporalInstant' does not exist on type 'Date'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.
-
-
@@= skipped -32, +26 lines =@@
doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2550: Property 'toTemporalInstant' does not exist on type 'Date'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.


-==== doYouNeedToChangeYourTargetLibraryES2016Plus.ts (40 errors) ====
+doYouNeedToChangeYourTargetLibraryES2016Plus.ts(47,46): error TS2339: Property 'toTemporalInstant' does not exist on type 'Date'.
+
+
+==== doYouNeedToChangeYourTargetLibraryES2016Plus.ts (34 errors) ====
// es2016
const testIncludes = ["hello"].includes("world");
~~~~~~~~
@@= skipped -40, +40 lines =@@
@@= skipped -37, +37 lines =@@
~~~~~~~
!!! error TS2550: Property 'finally' does not exist on type 'Promise<unknown>'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
const testRegExpMatchArrayGroups = "2019-04-30".match(/(?<year>[0-9]{4})-(?<month>[0-9]{2})-(?<day>[0-9]{2})/g).groups;
Expand All @@ -50,11 +44,4 @@
-!!! error TS1503: Named capturing groups are only available when targeting 'ES2018' or later.
~~~~~~
!!! error TS2550: Property 'groups' does not exist on type 'RegExpExecArray'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
const testRegExpDotAll = /foo/g.dotAll;
@@= skipped -90, +78 lines =@@
// esnext
const testDateToTemporalInstant = new Date().toTemporalInstant();
~~~~~~~~~~~~~~~~~
-!!! error TS2550: Property 'toTemporalInstant' does not exist on type 'Date'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.
+!!! error TS2339: Property 'toTemporalInstant' does not exist on type 'Date'.

const testRegExpDotAll = /foo/g.dotAll;