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Add lib.esnext.temporal #62628

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6b2a210
add lib.esnext.temporal
Renegade334 Oct 19, 2025
bab5a4a
add proposal-temporal ancillaries to lib.esnext.{date,intl}
Renegade334 Oct 20, 2025
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2 changes: 2 additions & 0 deletions src/compiler/commandLineParser.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -251,6 +251,8 @@ const libEntries: [string, string][] = [
["esnext.typedarrays", "lib.esnext.typedarrays.d.ts"],
["esnext.error", "lib.esnext.error.d.ts"],
["esnext.sharedmemory", "lib.esnext.sharedmemory.d.ts"],
["esnext.temporal", "lib.esnext.temporal.d.ts"],
["esnext.date", "lib.esnext.date.d.ts"],
["decorators", "lib.decorators.d.ts"],
["decorators.legacy", "lib.decorators.legacy.d.ts"],
];
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5 changes: 5 additions & 0 deletions src/compiler/utilities.ts
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Expand Up @@ -1927,6 +1927,11 @@ export const getScriptTargetFeatures: () => ScriptTargetFeatures = /* @__PURE__
"fromHex",
],
})),
Date: new Map(Object.entries({
esnext: [
"toTemporalInstant",
],
})),
}))
);

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2 changes: 2 additions & 0 deletions src/lib/esnext.d.ts
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Expand Up @@ -10,3 +10,5 @@
/// <reference lib="esnext.error" />
/// <reference lib="esnext.sharedmemory" />
/// <reference lib="esnext.typedarrays" />
/// <reference lib="esnext.temporal" />
/// <reference lib="esnext.date" />
5 changes: 5 additions & 0 deletions src/lib/esnext.date.d.ts
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@@ -0,0 +1,5 @@
/// <reference lib="esnext.temporal" />

interface Date {
toTemporalInstant(): Temporal.Instant;
}
11 changes: 10 additions & 1 deletion src/lib/esnext.intl.d.ts
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@@ -1,3 +1,12 @@
/// <reference lib="esnext.temporal" />
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@jakebailey jakebailey Dec 10, 2025

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intl comes before temporal in the libs list. I am not sure if we have cases where earlier libs reference later ones, though maybe that does nothing.

I am not sure if this matters, or in which file it makes sense to declare these...


declare namespace Intl {
// Empty
type FormattableTemporalObject = Temporal.PlainDate | Temporal.PlainYearMonth | Temporal.PlainMonthDay | Temporal.PlainTime | Temporal.PlainDateTime | Temporal.Instant;

interface DateTimeFormat {
format(date?: FormattableTemporalObject | Date | number): string;
formatToParts(date?: FormattableTemporalObject | Date | number): DateTimeFormatPart[];
formatRange(startDate: FormattableTemporalObject | Date | number, endDate: FormattableTemporalObject | Date | number): string;
formatRangeToParts(startDate: FormattableTemporalObject | Date | number, endDate: FormattableTemporalObject | Date | number): DateTimeRangeFormatPart[];
}
}
457 changes: 457 additions & 0 deletions src/lib/esnext.temporal.d.ts
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2 changes: 2 additions & 0 deletions src/lib/libs.json
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Expand Up @@ -90,6 +90,8 @@
"esnext.typedarrays",
"esnext.error",
"esnext.sharedmemory",
"esnext.temporal",
"esnext.date",
"decorators",
"decorators.legacy",
// Default libraries
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4 changes: 4 additions & 0 deletions ...es/reference/bundlerDirectoryModule(module=nodenext,moduleresolution=nodenext).trace.json
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Expand Up @@ -195,5 +195,9 @@
"File '/.ts/package.json' does not exist according to earlier cached lookups.",
"File '/package.json' does not exist according to earlier cached lookups.",
"File '/.ts/package.json' does not exist according to earlier cached lookups.",
"File '/package.json' does not exist according to earlier cached lookups.",
"File '/.ts/package.json' does not exist according to earlier cached lookups.",
"File '/package.json' does not exist according to earlier cached lookups.",
"File '/.ts/package.json' does not exist according to earlier cached lookups.",
"File '/package.json' does not exist according to earlier cached lookups."
]
2 changes: 1 addition & 1 deletion ...ference/config/commandLineParsing/parseCommandLine/Parse --lib option with extra comma.js
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2 changes: 1 addition & 1 deletion ...onfig/commandLineParsing/parseCommandLine/Parse --lib option with trailing white-space.js
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2 changes: 1 addition & 1 deletion ...rence/config/commandLineParsing/parseCommandLine/Parse invalid option of library flags.js
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2 changes: 1 addition & 1 deletion ...nsFromJson/Convert empty string option of libs array to compiler-options with json api.js
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Expand Up @@ -30,5 +30,5 @@ CompilerOptions::
"configFilePath": "/apath/tsconfig.json"
}
Errors::
error TS6046: Argument for '--lib' option must be: 'es5', 'es6', 'es2015', 'es7', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'esnext', 'dom', 'dom.iterable', 'dom.asynciterable', 'webworker', 'webworker.importscripts', 'webworker.iterable', 'webworker.asynciterable', 'scripthost', 'es2015.core', 'es2015.collection', 'es2015.generator', 'es2015.iterable', 'es2015.promise', 'es2015.proxy', 'es2015.reflect', 'es2015.symbol', 'es2015.symbol.wellknown', 'es2016.array.include', 'es2016.intl', 'es2017.arraybuffer', 'es2017.date', 'es2017.object', 'es2017.sharedmemory', 'es2017.string', 'es2017.intl', 'es2017.typedarrays', 'es2018.asyncgenerator', 'es2018.asynciterable', 'es2018.intl', 'es2018.promise', 'es2018.regexp', 'es2019.array', 'es2019.object', 'es2019.string', 'es2019.symbol', 'es2019.intl', 'es2020.bigint', 'es2020.date', 'es2020.promise', 'es2020.sharedmemory', 'es2020.string', 'es2020.symbol.wellknown', 'es2020.intl', 'es2020.number', 'es2021.promise', 'es2021.string', 'es2021.weakref', 'es2021.intl', 'es2022.array', 'es2022.error', 'es2022.intl', 'es2022.object', 'es2022.string', 'es2022.regexp', 'es2023.array', 'es2023.collection', 'es2023.intl', 'es2024.arraybuffer', 'es2024.collection', 'es2024.object', 'es2024.promise', 'es2024.regexp', 'es2024.sharedmemory', 'es2024.string', 'esnext.array', 'esnext.collection', 'esnext.symbol', 'esnext.asynciterable', 'esnext.intl', 'esnext.disposable', 'esnext.bigint', 'esnext.string', 'esnext.promise', 'esnext.weakref', 'esnext.decorators', 'esnext.object', 'esnext.regexp', 'esnext.iterator', 'esnext.float16', 'esnext.typedarrays', 'esnext.error', 'esnext.sharedmemory', 'decorators', 'decorators.legacy'.
error TS6046: Argument for '--lib' option must be: 'es5', 'es6', 'es2015', 'es7', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'esnext', 'dom', 'dom.iterable', 'dom.asynciterable', 'webworker', 'webworker.importscripts', 'webworker.iterable', 'webworker.asynciterable', 'scripthost', 'es2015.core', 'es2015.collection', 'es2015.generator', 'es2015.iterable', 'es2015.promise', 'es2015.proxy', 'es2015.reflect', 'es2015.symbol', 'es2015.symbol.wellknown', 'es2016.array.include', 'es2016.intl', 'es2017.arraybuffer', 'es2017.date', 'es2017.object', 'es2017.sharedmemory', 'es2017.string', 'es2017.intl', 'es2017.typedarrays', 'es2018.asyncgenerator', 'es2018.asynciterable', 'es2018.intl', 'es2018.promise', 'es2018.regexp', 'es2019.array', 'es2019.object', 'es2019.string', 'es2019.symbol', 'es2019.intl', 'es2020.bigint', 'es2020.date', 'es2020.promise', 'es2020.sharedmemory', 'es2020.string', 'es2020.symbol.wellknown', 'es2020.intl', 'es2020.number', 'es2021.promise', 'es2021.string', 'es2021.weakref', 'es2021.intl', 'es2022.array', 'es2022.error', 'es2022.intl', 'es2022.object', 'es2022.string', 'es2022.regexp', 'es2023.array', 'es2023.collection', 'es2023.intl', 'es2024.arraybuffer', 'es2024.collection', 'es2024.object', 'es2024.promise', 'es2024.regexp', 'es2024.sharedmemory', 'es2024.string', 'esnext.array', 'esnext.collection', 'esnext.symbol', 'esnext.asynciterable', 'esnext.intl', 'esnext.disposable', 'esnext.bigint', 'esnext.string', 'esnext.promise', 'esnext.weakref', 'esnext.decorators', 'esnext.object', 'esnext.regexp', 'esnext.iterator', 'esnext.float16', 'esnext.typedarrays', 'esnext.error', 'esnext.sharedmemory', 'esnext.temporal', 'esnext.date', 'decorators', 'decorators.legacy'.

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