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Default reverse mapped type inference to its constraint

Open Andarist opened this issue 2 years ago • 17 comments

closes https://github.com/microsoft/TypeScript/issues/56241

Nov 03 '23 08:11 Andarist

@typescript-bot test top200 @typescript-bot user test this @typescript-bot run dt @typescript-bot perf test this @typescript-bot pack this

Nov 03 '23 16:11 jakebailey

Heya @jakebailey, I've started to run the parallelized Definitely Typed test suite on this PR at 720a860394c5c96c71475f434aae12659305a253. You can monitor the build here.

Update: The results are in!

Nov 03 '23 16:11 typescript-bot

Heya @jakebailey, I've started to run the tarball bundle task on this PR at 720a860394c5c96c71475f434aae12659305a253. You can monitor the build here.

Nov 03 '23 16:11 typescript-bot

Heya @jakebailey, I've started to run the diff-based user code test suite on this PR at 720a860394c5c96c71475f434aae12659305a253. You can monitor the build here.

Update: The results are in!

Nov 03 '23 16:11 typescript-bot

Heya @jakebailey, I've started to run the regular perf test suite on this PR at 720a860394c5c96c71475f434aae12659305a253. You can monitor the build here.

Update: The results are in!

Nov 03 '23 16:11 typescript-bot

Heya @jakebailey, I've started to run the diff-based top-repos suite on this PR at 720a860394c5c96c71475f434aae12659305a253. You can monitor the build here.

Nov 03 '23 16:11 typescript-bot

Hey @jakebailey, I've packed this into an installable tgz. You can install it for testing by referencing it in your package.json like so:

{
    "devDependencies": {
        "typescript": "https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/158454/artifacts?artifactName=tgz&fileId=69B8D4D93203CCB3C86748B20CB1D44417DE59215D6FAF4B9363F872E287B43D02&fileName=/typescript-5.4.0-insiders.20231103.tgz"
    }
}

and then running npm install.

There is also a playground for this build and an npm module you can use via "typescript": "npm:@typescript-deploys/[email protected]".;

Nov 03 '23 16:11 typescript-bot

@jakebailey Here are the results of running the user test suite comparing main and refs/pull/56300/merge:

There were infrastructure failures potentially unrelated to your change:

3 instances of "Package install failed"

Otherwise...

Everything looks good!

Nov 03 '23 17:11 typescript-bot

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

Here they are:

Compiler

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Angular - node (v18.15.0, x64)}
_{Memory used}	_{295,139k (± 0.01%)}	_{295,142k (± 0.01%)}	_~	_295,068k	_295,182k	_{p=0.810 n=6}
_{Parse Time}	_{2.63s (± 0.54%)}	_{2.63s (± 0.44%)}	_~	_2.62s	_2.65s	_{p=0.934 n=6}
_{Bind Time}	_{0.84s (± 0.97%)}	_{0.83s (± 1.00%)}	_~	_0.83s	_0.85s	_{p=0.718 n=6}
_{Check Time}	_{8.04s (± 0.22%)}	_{8.04s (± 0.24%)}	_~	_8.02s	_8.07s	_{p=1.000 n=6}
_{Emit Time}	_{7.08s (± 0.30%)}	_{7.09s (± 0.29%)}	_~	_7.06s	_7.11s	_{p=0.628 n=6}
_{Total Time}	_{18.58s (± 0.14%)}	_{18.60s (± 0.17%)}	_~	_18.56s	_18.64s	_{p=0.747 n=6}
_{Compiler-Unions - node (v18.15.0, x64)}
_{Memory used}	_{192,642k (± 1.57%)}	_{193,067k (± 1.49%)}	_~	_190,643k	_196,550k	_{p=1.000 n=6}
_{Parse Time}	_{1.35s (± 1.02%)}	_{1.35s (± 0.00%)}	_~	_1.35s	_1.35s	_{p=0.599 n=6}
_{Bind Time}	_{0.73s (± 0.00%)}	_{0.73s (± 0.00%)}	_~	_0.73s	_0.73s	_{p=1.000 n=6}
_{Check Time}	_{9.17s (± 0.32%)}	_{9.15s (± 0.29%)}	_~	_9.12s	_9.19s	_{p=0.225 n=6}
_{Emit Time}	_{2.63s (± 0.44%)}	_{2.63s (± 0.56%)}	_~	_2.61s	_2.65s	_{p=0.680 n=6}
_{Total Time}	_{13.88s (± 0.26%)}	_{13.87s (± 0.25%)}	_~	_13.84s	_13.93s	_{p=0.519 n=6}
_{Monaco - node (v18.15.0, x64)}
_{Memory used}	_{347,352k (± 0.00%)}	_{347,348k (± 0.00%)}	_~	_347,327k	_347,364k	_{p=0.748 n=6}
_{Parse Time}	_{2.46s (± 0.56%)}	_{2.47s (± 0.22%)}	_~	_2.46s	_2.47s	_{p=0.138 n=6}
_{Bind Time}	_{0.94s (± 0.00%)}	_{0.94s (± 0.43%)}	_~	_0.94s	_0.95s	_{p=0.405 n=6}
_{Check Time}	_{6.91s (± 0.53%)}	_{6.93s (± 0.30%)}	_~	_6.90s	_6.95s	_{p=0.511 n=6}
_{Emit Time}	_{4.04s (± 0.49%)}	_{4.05s (± 0.44%)}	_~	_4.03s	_4.08s	_{p=0.677 n=6}
_{Total Time}	_{14.35s (± 0.15%)}	_{14.38s (± 0.17%)}	_~	_14.35s	_14.41s	_{p=0.085 n=6}
_{TFS - node (v18.15.0, x64)}
_{Memory used}	_{302,581k (± 0.01%)}	_{302,600k (± 0.01%)}	_~	_302,573k	_302,647k	_{p=0.297 n=6}
_{Parse Time}	_{2.01s (± 0.87%)}	_{2.00s (± 1.16%)}	_~	_1.98s	_2.04s	_{p=0.739 n=6}
_{Bind Time}	_{1.01s (± 1.02%)}	_{1.01s (± 1.15%)}	_~	_1.00s	_1.03s	_{p=0.801 n=6}
_{Check Time}	_{6.25s (± 0.48%)}	_{6.26s (± 0.36%)}	_~	_6.24s	_6.30s	_{p=0.421 n=6}
_{Emit Time}	_{3.58s (± 0.46%)}	_{3.57s (± 0.34%)}	_~	_3.56s	_3.59s	_{p=0.191 n=6}
_{Total Time}	_{12.85s (± 0.25%)}	_{12.84s (± 0.23%)}	_~	_12.81s	_12.89s	_{p=0.686 n=6}
_{material-ui - node (v18.15.0, x64)}
_{Memory used}	_{470,512k (± 0.01%)}	_{470,516k (± 0.01%)}	_~	_470,480k	_470,571k	_{p=1.000 n=6}
_{Parse Time}	_{2.58s (± 0.32%)}	_{2.57s (± 0.29%)}	_~	_2.56s	_2.58s	_{p=0.383 n=6}
_{Bind Time}	_{0.99s (± 0.64%)}	_{0.99s (± 1.28%)}	_~	_0.97s	_1.00s	_{p=0.799 n=6}
_{Check Time}	_{16.62s (± 0.37%)}	_{16.65s (± 0.60%)}	_~	_16.54s	_16.79s	_{p=0.936 n=6}
_{Emit Time}	_{0.00s (± 0.00%)}	_{0.00s (± 0.00%)}	_~	_0.00s	_0.00s	_{p=1.000 n=6}
_{Total Time}	_{20.18s (± 0.31%)}	_{20.21s (± 0.51%)}	_~	_20.11s	_20.36s	_{p=0.747 n=6}
_{xstate - node (v18.15.0, x64)}
_{Memory used}	_{512,648k (± 0.01%)}	_{512,691k (± 0.01%)}	_~	_512,619k	_512,793k	_{p=0.173 n=6}
_{Parse Time}	_{3.27s (± 0.36%)}	_{3.28s (± 0.23%)}	_~	_3.27s	_3.29s	_{p=0.279 n=6}
_{Bind Time}	_{1.55s (± 0.33%)}	_{1.54s (± 0.33%)}	_~	_1.54s	_1.55s	_{p=0.311 n=6}
_{Check Time}	_{2.84s (± 0.74%)}	_{2.84s (± 0.36%)}	_~	_2.82s	_2.85s	_{p=0.743 n=6}
_{Emit Time}	_{0.08s (± 0.00%)}	_{0.08s (± 4.99%)}	_~	_0.08s	_0.09s	_{p=0.405 n=6}
_{Total Time}	_{7.73s (± 0.21%)}	_{7.74s (± 0.12%)}	_~	_7.73s	_7.75s	_{p=0.365 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

Angular - node (v18.15.0, x64)
Compiler-Unions - node (v18.15.0, x64)
Monaco - node (v18.15.0, x64)
TFS - node (v18.15.0, x64)
material-ui - node (v18.15.0, x64)
xstate - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

tsserver

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-UnionsTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,391ms (± 1.47%)}	_{2,380ms (± 1.11%)}	_~	_2,359ms	_2,428ms	_{p=0.872 n=6}
_{Req 2 - geterr}	_{5,350ms (± 1.63%)}	_{5,386ms (± 1.70%)}	_~	_5,279ms	_5,486ms	_{p=0.378 n=6}
_{Req 3 - references}	_{328ms (± 1.01%)}	_{326ms (± 1.04%)}	_~	_323ms	_332ms	_{p=0.462 n=6}
_{Req 4 - navto}	_{279ms (± 1.46%)}	_{277ms (± 1.26%)}	_~	_273ms	_280ms	_{p=0.284 n=6}
_{Req 5 - completionInfo count}	_{1,356 (± 0.00%)}	_{1,356 (± 0.00%)}	_~	_1,356	_1,356	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{81ms (± 9.14%)}	_{85ms (± 7.45%)}	_~	_75ms	_90ms	_{p=0.402 n=6}
_{CompilerTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,492ms (± 0.57%)}	_{2,503ms (± 1.22%)}	_~	_2,451ms	_2,531ms	_{p=0.298 n=6}
_{Req 2 - geterr}	_{4,056ms (± 1.53%)}	_{4,134ms (± 1.73%)}	_{+77ms (+ 1.91%)}	_4,039ms	_4,195ms	_{p=0.031 n=6}
_{Req 3 - references}	_{342ms (± 1.34%)}	_{336ms (± 1.44%)}	_~	_332ms	_343ms	_{p=0.076 n=6}
_{Req 4 - navto}	_{283ms (± 0.30%)}	_{281ms (± 0.29%)}	_{-1ms (- 0.41%)}	_280ms	_282ms	_{p=0.045 n=6}
_{Req 5 - completionInfo count}	_{1,518 (± 0.00%)}	_{1,518 (± 0.00%)}	_~	_1,518	_1,518	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{87ms (± 5.15%)}	_{80ms (± 5.97%)}	_{🟩-7ms (- 7.84%)}	_77ms	_89ms	_{p=0.038 n=6}
_{xstateTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,594ms (± 0.25%)}	_{2,589ms (± 0.68%)}	_~	_2,562ms	_2,611ms	_{p=0.687 n=6}
_{Req 2 - geterr}	_{1,692ms (± 1.69%)}	_{1,727ms (± 2.55%)}	_~	_1,668ms	_1,779ms	_{p=0.229 n=6}
_{Req 3 - references}	_{118ms (± 8.12%)}	_{111ms (± 7.49%)}	_~	_105ms	_125ms	_{p=0.170 n=6}
_{Req 4 - navto}	_{364ms (± 0.25%)}	_{365ms (± 0.30%)}	_~	_364ms	_367ms	_{p=0.149 n=6}
_{Req 5 - completionInfo count}	_{2,073 (± 0.00%)}	_{2,073 (± 0.00%)}	_~	_2,073	_2,073	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{309ms (± 1.14%)}	_{310ms (± 1.80%)}	_~	_300ms	_316ms	_{p=0.422 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

CompilerTSServer - node (v18.15.0, x64)
Compiler-UnionsTSServer - node (v18.15.0, x64)
xstateTSServer - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Startup

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{tsc-startup - node (v18.15.0, x64)}
_{Execution time}	_{152.20ms (± 0.17%)}	_{152.17ms (± 0.19%)}	_~	_150.92ms	_156.05ms	_{p=0.193 n=600}
_{tsserver-startup - node (v18.15.0, x64)}
_{Execution time}	_{227.91ms (± 0.18%)}	_{227.66ms (± 0.16%)}	_{-0.25ms (- 0.11%)}	_226.18ms	_232.66ms	_{p=0.000 n=600}
_{tsserverlibrary-startup - node (v18.15.0, x64)}
_{Execution time}	_{228.96ms (± 0.17%)}	_{228.90ms (± 0.17%)}	_~	_227.31ms	_236.30ms	_{p=0.096 n=600}
_{typescript-startup - node (v18.15.0, x64)}
_{Execution time}	_{228.91ms (± 0.16%)}	_{228.94ms (± 0.15%)}	_~	_227.59ms	_231.34ms	_{p=0.188 n=600}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

tsc-startup - node (v18.15.0, x64)
tsserver-startup - node (v18.15.0, x64)
tsserverlibrary-startup - node (v18.15.0, x64)
typescript-startup - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

Nov 03 '23 17:11 typescript-bot

Hey @jakebailey, the results of running the DT tests are ready. Everything looks the same! You can check the log here.

Nov 03 '23 17:11 typescript-bot

@typescript-bot test it @typescript-bot pack this

Nov 29 '25 13:11 jakebailey

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

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

Nov 29 '25 13:11 typescript-bot

Hey @jakebailey, I've packed this into an installable tgz. You can install it for testing by referencing it in your package.json like so:

{
    "devDependencies": {
        "typescript": "https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/166619/artifacts?artifactName=tgz&fileId=B721D8D403FD80E8AA7B9AC340153121ED331A25713EBA3BD4101F5C6DB1EC3402&fileName=/typescript-6.0.0-insiders.20251129.tgz"
    }
}

and then running npm install.

There is also a playground for this build and an npm module you can use via "typescript": "npm:@typescript-deploys/[email protected]".;

Nov 29 '25 13:11 typescript-bot

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

Everything looks the same!

You can check the log here.

Nov 29 '25 13:11 typescript-bot

@jakebailey Here are the results of running the user tests with tsc comparing main and refs/pull/56300/merge:

There were infrastructure failures potentially unrelated to your change:

1 instance of "Git clone failed"

Otherwise...

Everything looks good!

Nov 29 '25 14:11 typescript-bot

@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	₁	₁	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_62,370	_62,370	_~	_~	_~	_{p=1.000 n=6}
_Types	_50,386	_50,386	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{196,285k (± 0.13%)}	_{195,802k (± 0.75%)}	_~	_192,809k	_196,565k	_{p=0.936 n=6}
_{Parse Time}	_{1.61s (± 1.22%)}	_{1.60s (± 0.92%)}	_~	_1.58s	_1.62s	_{p=0.463 n=6}
_{Bind Time}	_{0.91s (± 1.70%)}	_{0.91s (± 1.94%)}	_~	_0.88s	_0.93s	_{p=0.737 n=6}
_{Check Time}	_{11.96s (± 0.26%)}	_{11.98s (± 0.43%)}	_~	_11.91s	_12.05s	_{p=0.809 n=6}
_{Emit Time}	_{3.39s (± 3.59%)}	_{3.30s (± 2.17%)}	_~	_3.19s	_3.41s	_{p=0.199 n=6}
_{Total Time}	_{17.87s (± 0.81%)}	_{17.77s (± 0.65%)}	_~	_17.59s	_17.91s	_{p=0.471 n=6}
_{angular-1 - node (v18.15.0, x64)}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_956,047	_956,165	_{+118 (+ 0.01%)}	_~	_~	_{p=0.001 n=6}
_Types	_415,881	_415,889	_{+8 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{1,255,268k (± 0.01%)}	_{1,255,267k (± 0.01%)}	_~	_1,255,132k	_1,255,353k	_{p=0.936 n=6}
_{Parse Time}	_{7.90s (± 0.57%)}	_{7.94s (± 1.05%)}	_~	_7.81s	_8.07s	_{p=0.335 n=6}
_{Bind Time}	_{2.33s (± 0.75%)}	_{2.35s (± 0.52%)}	_~	_2.33s	_2.36s	_{p=0.277 n=6}
_{Check Time}	_{38.71s (± 0.27%)}	_{38.70s (± 0.32%)}	_~	_38.52s	_38.85s	_{p=0.521 n=6}
_{Emit Time}	_{17.87s (± 0.44%)}	_{17.82s (± 0.37%)}	_~	_17.74s	_17.89s	_{p=0.298 n=6}
_{Total Time}	_{66.81s (± 0.28%)}	_{66.81s (± 0.24%)}	_~	_66.56s	_67.00s	_{p=0.810 n=6}
_{mui-docs - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_2,724,073	_2,724,076	_{+3 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_937,413	_937,420	_{+7 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,053,238k (± 0.01%)}	_{3,053,257k (± 0.00%)}	_~	_3,053,089k	_3,053,452k	_{p=0.575 n=6}
_{Parse Time}	_{8.61s (± 0.09%)}	_{8.60s (± 0.16%)}	_~	_8.58s	_8.62s	_{p=0.059 n=6}
_{Bind Time}	_{2.33s (± 0.88%)}	_{2.33s (± 0.32%)}	_~	_2.32s	_2.34s	_{p=0.682 n=6}
_{Check Time}	_{93.20s (± 0.60%)}	_{93.39s (± 0.68%)}	_~	_92.55s	_94.37s	_{p=0.689 n=6}
_{Emit Time}	_{0.31s (± 2.04%)}	_{0.31s (± 1.31%)}	_~	_0.31s	_0.32s	_{p=0.673 n=6}
_{Total Time}	_{104.46s (± 0.55%)}	_{104.63s (± 0.60%)}	_~	_103.79s	_105.61s	_{p=0.689 n=6}
_{self-build-src - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,251,545	_1,251,579	_{+34 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_259,756	_259,760	_{+4 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{2,454,152k (± 6.05%)}	_{2,514,997k (±11.82%)}	_~	_2,392,757k	_3,122,603k	_{p=0.810 n=6}
_{Parse Time}	_{5.16s (± 0.94%)}	_{5.16s (± 0.98%)}	_~	_5.11s	_5.25s	_{p=0.872 n=6}
_{Bind Time}	_{1.82s (± 1.53%)}	_{1.82s (± 1.33%)}	_~	_1.79s	_1.86s	_{p=0.809 n=6}
_{Check Time}	_{35.42s (± 0.99%)}	_{35.54s (± 0.55%)}	_~	_35.36s	_35.89s	_{p=0.471 n=6}
_{Emit Time}	_{2.98s (± 2.71%)}	_{2.92s (± 2.32%)}	_~	_2.85s	_3.03s	_{p=0.298 n=6}
_{Total Time}	_{45.38s (± 0.79%)}	_{45.45s (± 0.44%)}	_~	_45.28s	_45.79s	_{p=0.471 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,251,545	_1,251,579	_{+34 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_259,756	_259,760	_{+4 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,066,923k (± 9.65%)}	_{3,067,032k (± 9.65%)}	_~	_2,462,526k	_3,188,124k	_{p=0.810 n=6}
_{Parse Time}	_{6.78s (± 1.50%)}	_{6.79s (± 0.84%)}	_~	_6.68s	_6.83s	_{p=0.575 n=6}
_{Bind Time}	_{2.26s (± 2.13%)}	_{2.25s (± 1.50%)}	_~	_2.21s	_2.30s	_{p=0.809 n=6}
_{Check Time}	_{43.03s (± 0.54%)}	_{43.07s (± 0.43%)}	_~	_42.73s	_43.26s	_{p=0.689 n=6}
_{Emit Time}	_{3.49s (± 1.42%)}	_{3.50s (± 1.52%)}	_~	_3.42s	_3.56s	_{p=1.000 n=6}
_{Total Time}	_{55.57s (± 0.47%)}	_{55.61s (± 0.50%)}	_~	_55.09s	_55.92s	_{p=0.936 n=6}
_{self-compiler - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_264,177	_264,188	_{+11 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_103,979	_103,982	_{+3 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{443,224k (± 0.02%)}	_{443,237k (± 0.02%)}	_~	_443,082k	_443,310k	_{p=0.630 n=6}
_{Parse Time}	_{3.52s (± 0.83%)}	_{3.51s (± 0.94%)}	_~	_3.46s	_3.55s	_{p=0.686 n=6}
_{Bind Time}	_{1.39s (± 1.56%)}	_{1.39s (± 1.29%)}	_~	_1.37s	_1.42s	_{p=0.808 n=6}
_{Check Time}	_{19.24s (± 0.26%)}	_{19.22s (± 0.51%)}	_~	_19.08s	_19.33s	_{p=1.000 n=6}
_{Emit Time}	_{1.55s (± 1.87%)}	_{1.54s (± 1.54%)}	_~	_1.50s	_1.57s	_{p=0.629 n=6}
_{Total Time}	_{25.70s (± 0.19%)}	_{25.66s (± 0.48%)}	_~	_25.51s	_25.81s	_{p=0.873 n=6}
_{ts-pre-modules - node (v18.15.0, x64)}
_Errors	₇₂	₇₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_225,386	_225,386	_~	_~	_~	_{p=1.000 n=6}
_Types	_94,304	_94,306	_{+2 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{370,146k (± 0.04%)}	_{370,038k (± 0.02%)}	_~	_369,987k	_370,136k	_{p=0.093 n=6}
_{Parse Time}	_{2.85s (± 1.06%)}	_{2.85s (± 1.23%)}	_~	_2.82s	_2.90s	_{p=0.806 n=6}
_{Bind Time}	_{1.65s (± 1.21%)}	_{1.64s (± 0.90%)}	_~	_1.63s	_1.66s	_{p=0.498 n=6}
_{Check Time}	_{16.61s (± 0.53%)}	_{16.64s (± 0.35%)}	_~	_16.55s	_16.71s	_{p=0.423 n=6}
_{Emit Time}	_{0.00s (±244.70%)}	_0.00s	_~	_~	_~	_{p=0.405 n=6}
_{Total Time}	_{21.11s (± 0.46%)}	_{21.13s (± 0.36%)}	_~	_21.03s	_21.24s	_{p=0.630 n=6}
_{vscode - node (v18.15.0, x64)}
_Errors	₁₁	₁₁	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_4,068,329	_4,068,429	_{+100 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_1,281,534	_1,281,580	_{+46 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,854,018k (± 0.00%)}	_{3,854,051k (± 0.00%)}	_~	_3,853,929k	_3,854,137k	_{p=0.689 n=6}
_{Parse Time}	_{12.89s (± 0.56%)}	_{12.89s (± 0.61%)}	_~	_12.83s	_13.04s	_{p=0.936 n=6}
_{Bind Time}	_{4.38s (± 0.54%)}	_{4.38s (± 1.46%)}	_~	_4.31s	_4.46s	_{p=1.000 n=6}
_{Check Time}	_{93.91s (± 0.20%)}	_{94.04s (± 0.18%)}	_~	_93.78s	_94.28s	_{p=0.470 n=6}
_{Emit Time}	_{31.57s (± 0.44%)}	_{31.61s (± 0.87%)}	_~	_31.35s	_32.14s	_{p=0.936 n=6}
_{Total Time}	_{142.74s (± 0.16%)}	_{142.92s (± 0.14%)}	_~	_142.75s	_143.28s	_{p=0.090 n=6}
_{webpack - node (v18.15.0, x64)}
_Errors	₄₀	₄₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_379,892	_379,892	_~	_~	_~	_{p=1.000 n=6}
_Types	_166,631	_166,635	_{+4 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{539,873k (± 0.01%)}	_{539,891k (± 0.03%)}	_~	_539,739k	_540,157k	_{p=0.810 n=6}
_{Parse Time}	_{3.89s (± 0.60%)}	_{3.90s (± 0.66%)}	_~	_3.88s	_3.95s	_{p=0.618 n=6}
_{Bind Time}	_{1.68s (± 1.27%)}	_{1.67s (± 0.88%)}	_~	_1.65s	_1.69s	_{p=0.622 n=6}
_{Check Time}	_{19.13s (± 0.23%)}	_{19.15s (± 0.63%)}	_~	_19.01s	_19.29s	_{p=1.000 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{24.70s (± 0.24%)}	_{24.72s (± 0.49%)}	_~	_24.56s	_24.87s	_{p=0.810 n=6}
_{xstate-main - node (v18.15.0, x64)}
_Errors	₃₀	₃₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_690,397	_697,389	_{+6,992 (+ 1.01%)}	_~	_~	_{p=0.001 n=6}
_Types	_208,790	_211,183	_{+2,393 (+ 1.15%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{586,184k (± 0.02%)}	_{590,023k (± 0.02%)}	_{+3,840k (+ 0.66%)}	_589,896k	_590,226k	_{p=0.005 n=6}
_{Parse Time}	_{4.17s (± 0.69%)}	_{4.18s (± 0.62%)}	_~	_4.14s	_4.21s	_{p=0.418 n=6}
_{Bind Time}	_{1.40s (± 1.14%)}	_{1.41s (± 1.67%)}	_~	_1.37s	_1.43s	_{p=0.503 n=6}
_{Check Time}	_{20.57s (± 1.97%)}	_{20.80s (± 1.80%)}	_~	_20.38s	_21.16s	_{p=0.127 n=6}
_{Emit Time}	_0.00s	_{0.00s (±244.70%)}	_~	_0.00s	_0.01s	_{p=0.405 n=6}
_{Total Time}	_{26.14s (± 1.61%)}	_{26.38s (± 1.38%)}	_~	_25.94s	_26.73s	_{p=0.092 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

Nov 29 '25 14:11 typescript-bot

@jakebailey Here are the results of running the top 400 repos with tsc comparing main and refs/pull/56300/merge:

Everything looks good!

Nov 29 '25 15:11 typescript-bot