Improve union origin preservation in filtering-unionizing binary expressions by Andarist · Pull Request #61362 · microsoft/TypeScript

Andarist · 2025-03-06T08:55:58Z

…essions

Andarist · 2025-03-06T08:58:00Z

src/compiler/checker.ts

+
+        function getUnionOfLeftAndRightTypes(leftType: Type, rightType: Type, adjustLeft: (type: Type) => Type, unionReduction?: UnionReduction) {
+            const rightTypes = rightType.flags & TypeFlags.Union ? (rightType as UnionType).types : [rightType];
+            const includes = addTypesToUnion(/*typeSet*/ undefined, 0 as TypeFlags, rightTypes) & (TypeFlags.BaseOfLiteral | TypeFlags.Nullable);


It's not like all 3 cases require both BaseOfLiteral and Nullable preservation but there is no harm in treating them the same way here

jakebailey · 2025-06-30T23:10:45Z

@typescript-bot test it

typescript-bot · 2025-06-30T23:10:50Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`test top400`	✅ Started	👀 Results
`user test this`	✅ Started	👀 Results
`run dt`	✅ Started	👀 Results
`perf test this faster`	✅ Started	👀 Results

typescript-bot · 2025-06-30T23:33:41Z

Hey @jakebailey, the results of running the DT tests are ready.

There were interesting changes:

Branch only errors:

Package: oauth-shim
Error:

TypeError: Cannot read properties of undefined (reading 'id')
Occurred while linting /mnt/vss/_work/1/DefinitelyTyped/types/oauth-shim/oauth-shim-tests.ts:1
Rule: "@definitelytyped/expect"
    at getTypeId (/mnt/vss/_work/1/s/built/local/typescript.js:65803:17)
    at binarySearch (/mnt/vss/_work/1/s/built/local/typescript.js:2972:33)
    at containsType (/mnt/vss/_work/1/s/built/local/typescript.js:65806:12)
    at /mnt/vss/_work/1/s/built/local/typescript.js:84896:67
    at mapType (/mnt/vss/_work/1/s/built/local/typescript.js:74490:89)
    at getUnionOfLeftAndRightTypes (/mnt/vss/_work/1/s/built/local/typescript.js:84892:9)
    at checkBinaryLikeExpressionWorker (/mnt/vss/_work/1/s/built/local/typescript.js:84669:76)
    at BinaryExpressionStateMachine.onExit (/mnt/vss/_work/1/s/built/local/typescript.js:84330:18)
    at Array.exit (/mnt/vss/_work/1/s/built/local/typescript.js:32144:28)
    at trampoline (/mnt/vss/_work/1/s/built/local/typescript.js:32220:42)

You can check the log here.

typescript-bot · 2025-06-30T23:48:52Z

@jakebailey Here are the results of running the user tests with tsc comparing main and refs/pull/61362/merge:

Something interesting changed - please have a look.

Details

arktype

/mnt/ts_downloads/_/m/arktype/build.sh

[MISSING] error TS2345: Argument of type 'SyntaxKind.Identifier' is not assignable to parameter of type 'SyntaxKind'.
- /mnt/ts_downloads/_/m/arktype/ark/repo/jsdocGen.ts(343,25)
[MISSING] error TS2339: Property 'getDefinitions' does not exist on type 'JSDoc | JSDocText | JSDocLink | JSDocLinkCode | JSDocLinkPlain | SourceFile | Node<Node> | ... 194 more ... | CommaListExpression'.
- /mnt/ts_downloads/_/m/arktype/ark/repo/jsdocGen.ts(345,5)

debug

/mnt/ts_downloads/_/m/debug/tsconfig.json

[MISSING] error TS2630: Cannot assign to '_typeof' because it is a function.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(3,100)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(3,165)
[MISSING] error TS2339: Property 'type' does not exist on type 'Process'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(34,74)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/index.js(7,47)
[MISSING] error TS2339: Property '__nwjs' does not exist on type 'Process'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(34,112)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/index.js(7,106)
[MISSING] error TS2551: Property 'WebkitAppearance' does not exist on type 'CSSStyleDeclaration'. Did you mean 'webkitAppearance'?
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(45,138)
[MISSING] error TS2339: Property 'firebug' does not exist on type 'Console'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(46,70)
[MISSING] error TS2339: Property 'exception' does not exist on type 'Console'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(46,96)
[MISSING] error TS2367: This comparison appears to be unintentional because the types '"undefined"' and '"object"' have no overlap.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(100,10)
[MISSING] error TS2345: Argument of type 'IArguments' is not assignable to parameter of type '[message?: any, ...optionalParams: any[]]'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(100,148)
[MISSING] error TS2552: Cannot find name 'LocalStorage'. Did you mean 'localstorage'?
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(152,13)
[MISSING] error TS18046: 'error' is of type 'unknown'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/browser.js(177,45)
[MISSING] error TS2339: Property 'colors' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(51,24)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(51,60)
[MISSING] error TS2339: Property 'diff' does not exist on type '{ (...args: any[]): void; namespace: string; enabled: boolean; useColors: any; color: string | number; destroy: () => boolean; extend: (namespace: any, delimiter: any) => Function; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(80,12)
[MISSING] error TS2339: Property 'prev' does not exist on type '{ (...args: any[]): void; namespace: string; enabled: boolean; useColors: any; color: string | number; destroy: () => boolean; extend: (namespace: any, delimiter: any) => Function; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(81,12)
[MISSING] error TS2339: Property 'curr' does not exist on type '{ (...args: any[]): void; namespace: string; enabled: boolean; useColors: any; color: string | number; destroy: () => boolean; extend: (namespace: any, delimiter: any) => Function; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(82,12)
[MISSING] error TS2551: Property 'formatArgs' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'. Did you mean 'formatters'?
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(113,19)
[MISSING] error TS2339: Property 'log' does not exist on type '{ (...args: any[]): void; namespace: string; enabled: boolean; useColors: any; color: string | number; destroy: () => boolean; extend: (namespace: any, delimiter: any) => Function; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(114,24)
[MISSING] error TS2339: Property 'log' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(114,43)
[MISSING] error TS2339: Property 'useColors' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(120,35)
[MISSING] error TS2339: Property 'init' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(127,28)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(128,19)
[MISSING] error TS2339: Property 'save' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(159,17)
[MISSING] error TS2304: Cannot find name 'Mixed'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(230,13)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(231,14)
[MISSING] error TS2339: Property 'load' does not exist on type '{ (namespace: string): Function; debug: ...; default: ...; coerce: (val: Mixed) => Mixed; disable: () => void; enable: (namespaces: string) => void; enabled: (name: string) => boolean; humanize: any; ... 4 more ...; selectColor: (namespace: string) => string | number; }'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/common.js(244,34)
[MISSING] error TS2339: Property 'browser' does not exist on type 'Process'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/index.js(7,78)
[MISSING] error TS2307: Cannot find module 'supports-color' or its corresponding type declarations.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(29,31)
[MISSING] error TS2345: Argument of type 'string | undefined' is not assignable to parameter of type 'string'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(53,39)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(55,48)
[MISSING] error TS2322: Type 'boolean' is not assignable to type 'string'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(54,5)
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(56,5)
[MISSING] error TS2322: Type 'null' is not assignable to type 'string | undefined'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(58,5)
[MISSING] error TS2322: Type 'number' is not assignable to type 'string'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(60,5)
[MISSING] error TS2345: Argument of type 'IArguments' is not assignable to parameter of type '[format?: any, ...param: any[]]'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(108,55)
[MISSING] error TS2322: Type 'string | undefined' is not assignable to type 'string'.
- /mnt/ts_downloads/_/m/debug/node_modules/debug/src/node.js(136,3)

puppeteer

packages/browsers/test/src/tsconfig.json

[MISSING] error TS2307: Cannot find module './generated/version.js' or its corresponding type declarations.
- packages/browsers/src/CLI.ts#L20 in packages/browsers/src/tsconfig.esm.json
- packages/browsers/src/CLI.ts#L20 in packages/browsers/src/tsconfig.cjs.json

webpack

tsconfig.types.test.json

[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'Buffer<ArrayBuffer>'.
- lib/serialization/FileMiddleware.js#L281
[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'ArrayBuffer'.
- lib/wasm-sync/WebAssemblyGenerator.js#L518
[MISSING] error TS2307: Cannot find module 'webpack' or its corresponding type declarations.
[MISSING] error TS7006: Parameter 'loaders' implicitly has an 'any' type.
- test/configCases/loaders/pr-14384/PluginWithLoader.js#L16
[MISSING] error TS7006: Parameter 'normalModule' implicitly has an 'any' type.
- test/configCases/loaders/pr-14384/PluginWithLoader.js#L16

tsconfig.types.json

[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'Buffer<ArrayBuffer>'.
- lib/serialization/FileMiddleware.js#L281
[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'ArrayBuffer'.
- lib/wasm-sync/WebAssemblyGenerator.js#L518

tsconfig.json

[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'Buffer<ArrayBuffer>'.
- lib/serialization/FileMiddleware.js#L281
[MISSING] error TS2345: Argument of type 'Buffer<ArrayBufferLike>' is not assignable to parameter of type 'ArrayBuffer'.
- lib/wasm-sync/WebAssemblyGenerator.js#L518

typescript-bot · 2025-06-30T23:51:58Z

@jakebailey
The results of the perf run you requested are in!

Here they are:

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - node (v18.15.0, x64)}
_Errors	₃₄	₃₄	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_62,370	_62,370	_~	_~	_~	_{p=1.000 n=6}
_Types	_50,386	_50,376	_{-10 (- 0.02%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{195,973k (± 0.79%)}	_{195,995k (± 0.73%)}	_~	_193,079k	_196,662k	_{p=0.575 n=6}
_{Parse Time}	_{1.60s (± 1.28%)}	_{1.60s (± 1.09%)}	_~	_1.58s	_1.63s	_{p=0.684 n=6}
_{Bind Time}	_{0.88s (± 0.92%)}	_{0.89s (± 0.92%)}	_~	_0.88s	_0.90s	_{p=0.666 n=6}
_{Check Time}	_{11.81s (± 0.63%)}	_{11.95s (± 0.65%)}	_{+0.14s (+ 1.16%)}	_11.84s	_12.06s	_{p=0.012 n=6}
_{Emit Time}	_{3.35s (± 3.76%)}	_{3.31s (± 0.59%)}	_~	_3.30s	_3.35s	_{p=0.871 n=6}
_{Total Time}	_{17.65s (± 0.62%)}	_{17.75s (± 0.51%)}	_~	_17.65s	_17.87s	_{p=0.172 n=6}
_{angular-1 - node (v18.15.0, x64)}
_Errors	₅₆	₅₆	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_948,753	_948,753	_~	_~	_~	_{p=1.000 n=6}
_Types	_410,846	_410,842	_{-4 (- 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{1,225,245k (± 0.01%)}	_{1,225,264k (± 0.01%)}	_~	_1,225,159k	_1,225,361k	_{p=0.471 n=6}
_{Parse Time}	_{7.90s (± 0.79%)}	_{7.87s (± 0.66%)}	_~	_7.82s	_7.96s	_{p=0.630 n=6}
_{Bind Time}	_{2.29s (± 0.64%)}	_{2.28s (± 0.45%)}	_~	_2.26s	_2.29s	_{p=0.101 n=6}
_{Check Time}	_{38.12s (± 0.22%)}	_{38.07s (± 0.39%)}	_~	_37.88s	_38.32s	_{p=0.521 n=6}
_{Emit Time}	_{17.86s (± 0.72%)}	_{17.84s (± 0.62%)}	_~	_17.73s	_18.02s	_{p=1.000 n=6}
_{Total Time}	_{66.17s (± 0.25%)}	_{66.05s (± 0.37%)}	_~	_65.81s	_66.42s	_{p=0.471 n=6}
_{mui-docs - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Symbols	_2,509,183	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Types	_892,716	₀	_~	_~	_~	_{p=1.000 n=6+0}
_{Memory used}	_{2,804,489k (± 0.00%)}	_0k	_~	_~	_~	_{p=1.000 n=6+0}
_{Parse Time}	_{10.49s (± 0.35%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Bind Time}	_{2.72s (± 0.82%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Check Time}	_{100.56s (± 1.05%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Emit Time}	_{0.37s (± 1.41%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Total Time}	_{114.14s (± 0.90%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{self-build-src - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,227,081	_1,227,107	_{+26 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_267,474	_267,548	_{+74 (+ 0.03%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{2,879,022k (±11.88%)}	_{2,975,592k (±10.05%)}	_~	_2,364,627k	_3,099,003k	_{p=1.000 n=6}
_{Parse Time}	_{6.64s (± 1.33%)}	_{6.73s (± 0.68%)}	_~	_6.65s	_6.79s	_{p=0.093 n=6}
_{Bind Time}	_{2.17s (± 2.53%)}	_{2.18s (± 1.17%)}	_~	_2.15s	_2.21s	_{p=0.467 n=6}
_{Check Time}	_{42.82s (± 0.83%)}	_{43.02s (± 0.31%)}	_~	_42.79s	_43.16s	_{p=0.128 n=6}
_{Emit Time}	_{3.47s (± 1.76%)}	_{3.49s (± 2.93%)}	_~	_3.36s	_3.66s	_{p=0.688 n=6}
_{Total Time}	_{55.09s (± 0.68%)}	_{55.41s (± 0.23%)}	_{+0.32s (+ 0.58%)}	_55.28s	_55.64s	_{p=0.045 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,227,081	_1,227,107	_{+26 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_267,474	_267,548	_{+74 (+ 0.03%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,040,090k (± 9.77%)}	_{2,944,989k (±11.52%)}	_~	_2,432,224k	_3,162,158k	_{p=0.689 n=6}
_{Parse Time}	_{6.90s (± 0.91%)}	_{6.84s (± 0.62%)}	_~	_6.78s	_6.90s	_{p=0.128 n=6}
_{Bind Time}	_{2.16s (± 2.43%)}	_{2.20s (± 1.67%)}	_~	_2.14s	_2.25s	_{p=0.147 n=6}
_{Check Time}	_{42.93s (± 0.59%)}	_{42.96s (± 0.88%)}	_~	_42.19s	_43.15s	_{p=0.298 n=6}
_{Emit Time}	_{3.56s (± 2.64%)}	_{3.55s (± 2.02%)}	_~	_3.45s	_3.66s	_{p=0.872 n=6}
_{Total Time}	_{55.56s (± 0.48%)}	_{55.54s (± 0.74%)}	_~	_54.71s	_55.77s	_{p=0.423 n=6}
_{self-compiler - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_262,548	_262,563	_{+15 (+ 0.01%)}	_~	_~	_{p=0.001 n=6}
_Types	_107,156	_107,234	_{+78 (+ 0.07%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{441,716k (± 0.01%)}	_{441,862k (± 0.01%)}	_{+146k (+ 0.03%)}	_441,824k	_441,896k	_{p=0.005 n=6}
_{Parse Time}	_{2.89s (± 0.36%)}	_{2.89s (± 0.28%)}	_~	_2.88s	_2.90s	_{p=0.932 n=6}
_{Bind Time}	_1.11s	_{1.11s (± 0.46%)}	_~	_1.11s	_1.12s	_{p=0.174 n=6}
_{Check Time}	_{15.76s (± 0.52%)}	_{15.87s (± 0.38%)}	_{+0.11s (+ 0.68%)}	_15.80s	_15.97s	_{p=0.045 n=6}
_{Emit Time}	_{1.29s (± 1.65%)}	_{1.31s (± 1.40%)}	_~	_1.28s	_1.33s	_{p=0.120 n=6}
_{Total Time}	_{21.05s (± 0.37%)}	_{21.18s (± 0.31%)}	_{+0.13s (+ 0.61%)}	_21.11s	_21.29s	_{p=0.024 n=6}
_{ts-pre-modules - node (v18.15.0, x64)}
_Errors	₇₁	₇₁	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_225,367	_225,367	_~	_~	_~	_{p=1.000 n=6}
_Types	_94,290	_94,367	_{+77 (+ 0.08%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{371,277k (± 0.05%)}	_{371,295k (± 0.06%)}	_~	_371,095k	_371,567k	_{p=0.936 n=6}
_{Parse Time}	_{2.91s (± 0.59%)}	_{2.89s (± 1.60%)}	_~	_2.81s	_2.94s	_{p=0.466 n=6}
_{Bind Time}	_{1.61s (± 0.82%)}	_{1.61s (± 1.22%)}	_~	_1.59s	_1.63s	_{p=0.566 n=6}
_{Check Time}	_{16.38s (± 0.32%)}	_{16.45s (± 0.59%)}	_~	_16.30s	_16.55s	_{p=0.126 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{20.91s (± 0.24%)}	_{20.95s (± 0.39%)}	_~	_20.82s	_21.07s	_{p=0.298 n=6}
_{vscode - node (v18.15.0, x64)}
_Errors	₃₃	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Symbols	_3,499,298	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Types	_1,177,218	₀	_~	_~	_~	_{p=1.000 n=6+0}
_{Memory used}	_{3,549,697k (± 0.01%)}	_0k	_~	_~	_~	_{p=1.000 n=6+0}
_{Parse Time}	_{18.50s (± 0.68%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Bind Time}	_{6.38s (±13.53%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Check Time}	_{117.25s (± 2.57%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Emit Time}	_{39.71s (± 6.96%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Total Time}	_{181.84s (± 2.35%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{webpack - node (v18.15.0, x64)}
_Errors	₂	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Symbols	_318,019	₀	_~	_~	_~	_{p=1.000 n=6+0}
_Types	_137,705	₀	_~	_~	_~	_{p=1.000 n=6+0}
_{Memory used}	_{472,222k (± 0.02%)}	_0k	_~	_~	_~	_{p=1.000 n=6+0}
_{Parse Time}	_{4.35s (± 0.86%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Bind Time}	_{1.77s (± 0.99%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Check Time}	_{20.69s (± 0.40%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Emit Time}	_0.00s	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{Total Time}	_{26.82s (± 0.40%)}	_0s	_~	_~	_~	_{p=1.000 n=6+0}
_{xstate-main - node (v18.15.0, x64)}
_Errors	₃₀	₃₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_665,978	_665,978	_~	_~	_~	_{p=1.000 n=6}
_Types	_199,345	_199,344	_{-1 (- 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{570,390k (± 0.01%)}	_{570,355k (± 0.03%)}	_~	_569,977k	_570,477k	_{p=0.378 n=6}
_{Parse Time}	_{4.27s (± 0.32%)}	_{4.27s (± 0.59%)}	_~	_4.24s	_4.30s	_{p=0.625 n=6}
_{Bind Time}	_{1.34s (± 0.73%)}	_{1.33s (± 0.63%)}	_{-0.02s (- 1.24%)}	_1.32s	_1.34s	_{p=0.018 n=6}
_{Check Time}	_{19.91s (± 0.31%)}	_{19.91s (± 0.47%)}	_~	_19.78s	_20.06s	_{p=0.936 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{25.51s (± 0.25%)}	_{25.51s (± 0.41%)}	_~	_25.37s	_25.68s	_{p=1.000 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

Compiler-Unions - node (v18.15.0, x64)
angular-1 - node (v18.15.0, x64)
mui-docs - node (v18.15.0, x64)
self-build-src - node (v18.15.0, x64)
self-build-src-public-api - node (v18.15.0, x64)
self-compiler - node (v18.15.0, x64)
ts-pre-modules - node (v18.15.0, x64)
vscode - node (v18.15.0, x64)
webpack - node (v18.15.0, x64)
xstate-main - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

typescript-bot · 2025-07-01T01:02:50Z

@jakebailey Here are the results of running the top 400 repos with tsc comparing main and refs/pull/61362/merge:

Something interesting changed - please have a look.

Details

ComposioHQ/composio

17 of 35 projects failed to build with the old tsc and were ignored

ts/examples/cloudflare-wrangler/tsconfig.json

error TS2307: Cannot find module '@composio/core' or its corresponding type declarations.
- ts/examples/cloudflare-wrangler/src/index.ts#L1
error TS2591: Cannot find name 'process'. Do you need to install type definitions for node? Try `npm i --save-dev @types/node` and then add 'node' to the types field in your tsconfig.
- ts/examples/cloudflare-wrangler/src/index.ts#L8
- ts/examples/cloudflare-wrangler/src/index.ts#L36

ts/examples/cloudflare-wrangler/test/tsconfig.json

error TS2307: Cannot find module '@composio/core' or its corresponding type declarations.
- ts/examples/cloudflare-wrangler/src/index.ts#L1

reduxjs/redux-devtools

25 of 58 projects failed to build with the old tsc and were ignored

extension/tsconfig.json

error TS2307: Cannot find module '@redux-devtools/utils' or its corresponding type declarations.

vuetifyjs/vuetify

3 of 7 projects failed to build with the old tsc and were ignored

packages/docs/tsconfig.json

error TS2307: Cannot find module 'vuetify' or its corresponding type declarations.
error TS2307: Cannot find module 'vuetify/components/VChip' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L6
error TS2307: Cannot find module 'vuetify/components/VBtn' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L7
error TS2307: Cannot find module 'vuetify/components/VSwitch' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L8
error TS2307: Cannot find module 'vuetify/components/VIcon' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L9
error TS2307: Cannot find module 'vuetify/components/VSnackbarQueue' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L10
error TS2307: Cannot find module 'vuetify/iconsets/fa' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L13
error TS2307: Cannot find module 'vuetify/iconsets/md' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L14
error TS2307: Cannot find module 'vuetify/iconsets/mdi-svg' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L15
error TS2307: Cannot find module 'vuetify/locale' or its corresponding type declarations.
- packages/docs/src/plugins/vuetify.ts#L20

Improve union origin preservation in filtering-unionizing binary expr…

111feca

…essions

github-project-automation bot added this to PR Backlog Mar 6, 2025

github-project-automation bot moved this to Not started in PR Backlog Mar 6, 2025

typescript-bot added the For Backlog Bug PRs that fix a backlog bug label Mar 6, 2025

Andarist commented Mar 6, 2025

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jakebailey commented Jun 30, 2025

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typescript-bot commented Jun 30, 2025

/mnt/ts_downloads/_/m/arktype/build.sh

/mnt/ts_downloads/_/m/debug/tsconfig.json

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typescript-bot commented Jun 30, 2025

tsc

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typescript-bot commented Jun 30, 2025 •

edited

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