support quick info and go to definition on mapped keys #61061

Zzzen · 2025-01-28T09:50:38Z

Fixes #50715, Fixes #56019, Fixes #61094

As mentioned in this comment on GitHub (#50715 (comment)), the @inheritDoc tag is necessary to enable features like quick info and go to definition.

typescript-bot · 2025-01-28T09:50:55Z

Looks like you're introducing a change to the public API surface area. If this includes breaking changes, please document them on our wiki's API Breaking Changes page.

Also, please make sure @DanielRosenwasser and @RyanCavanaugh are aware of the changes, just as a heads up.

jakebailey · 2025-02-22T00:52:50Z

Honestly this feels right to me?

@typescript-bot test it

typescript-bot · 2025-02-22T00:52:54Z

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

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

typescript-bot · 2025-02-22T01:37:11Z

@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	_62,390	_62,390	_~	_~	_~	_{p=1.000 n=6}
_Types	_50,395	_50,395	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{194,697k (± 1.01%)}	_{194,113k (± 0.95%)}	_~	_192,907k	_196,503k	_{p=0.936 n=6}
_{Parse Time}	_{1.31s (± 0.96%)}	_{1.31s (± 0.75%)}	_~	_1.30s	_1.32s	_{p=0.931 n=6}
_{Bind Time}	_0.73s	_0.73s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{9.73s (± 0.31%)}	_{9.74s (± 0.53%)}	_~	_9.68s	_9.82s	_{p=0.936 n=6}
_{Emit Time}	_{2.73s (± 0.57%)}	_{2.73s (± 0.64%)}	_~	_2.71s	_2.76s	_{p=0.869 n=6}
_{Total Time}	_{14.50s (± 0.19%)}	_{14.51s (± 0.29%)}	_~	_14.44s	_14.55s	_{p=0.871 n=6}
_{angular-1 - node (v18.15.0, x64)}
_Errors	₃₇	₃₇	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_948,488	_948,488	_~	_~	_~	_{p=1.000 n=6}
_Types	_411,006	_411,006	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{1,224,307k (± 0.00%)}	_{1,224,348k (± 0.01%)}	_~	_1,224,283k	_1,224,482k	_{p=0.689 n=6}
_{Parse Time}	_{8.03s (± 1.07%)}	_{7.98s (± 0.89%)}	_~	_7.90s	_8.08s	_{p=0.258 n=6}
_{Bind Time}	_{2.28s (± 0.48%)}	_{2.29s (± 0.39%)}	_~	_2.28s	_2.30s	_{p=0.111 n=6}
_{Check Time}	_{37.98s (± 0.40%)}	_{37.99s (± 0.27%)}	_~	_37.90s	_38.15s	_{p=1.000 n=6}
_{Emit Time}	_{18.39s (± 0.55%)}	_{18.41s (± 0.57%)}	_~	_18.29s	_18.54s	_{p=0.748 n=6}
_{Total Time}	_{66.67s (± 0.29%)}	_{66.67s (± 0.17%)}	_~	_66.52s	_66.85s	_{p=0.873 n=6}
_{mui-docs - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_2,347,440	_2,347,440	_~	_~	_~	_{p=1.000 n=6}
_Types	_845,526	_845,526	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{2,120,436k (± 0.00%)}	_{2,120,390k (± 0.00%)}	_~	_2,120,347k	_2,120,443k	_{p=0.230 n=6}
_{Parse Time}	_{7.26s (± 0.16%)}	_{7.26s (± 0.14%)}	_~	_7.25s	_7.28s	_{p=0.801 n=6}
_{Bind Time}	_{2.47s (± 1.14%)}	_{2.45s (± 0.26%)}	_~	_2.44s	_2.46s	_{p=0.180 n=6}
_{Check Time}	_{72.48s (± 1.10%)}	_{72.67s (± 0.50%)}	_~	_72.24s	_73.11s	_{p=1.000 n=6}
_{Emit Time}	_{0.15s (± 2.75%)}	_{0.14s (± 3.60%)}	_~	_0.14s	_0.15s	_{p=0.112 n=6}
_{Total Time}	_{82.36s (± 0.92%)}	_{82.53s (± 0.43%)}	_~	_82.10s	_82.97s	_{p=1.000 n=6}
_{self-build-src - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,226,588	_1,226,606	_{+18 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_266,986	_266,996	_{+10 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{2,723,670k (±14.66%)}	_{3,088,615k (± 0.03%)}	_~	_3,087,232k	_3,089,492k	_{p=0.093 n=6}
_{Parse Time}	_{6.61s (± 1.48%)}	_{6.72s (± 0.35%)}	_{+0.11s (+ 1.64%)}	_6.69s	_6.75s	_{p=0.030 n=6}
_{Bind Time}	_{2.16s (± 1.64%)}	_{2.16s (± 1.36%)}	_~	_2.12s	_2.20s	_{p=0.688 n=6}
_{Check Time}	_{42.83s (± 0.17%)}	_{42.78s (± 0.22%)}	_~	_42.69s	_42.95s	_{p=0.336 n=6}
_{Emit Time}	_{3.56s (± 2.15%)}	_{3.42s (± 2.87%)}	_{🟩-0.14s (- 3.93%)}	_3.24s	_3.50s	_{p=0.013 n=6}
_{Total Time}	_{55.17s (± 0.18%)}	_{55.07s (± 0.23%)}	_~	_54.92s	_55.29s	_{p=0.173 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,226,588	_1,226,606	_{+18 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_266,986	_266,996	_{+10 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{3,153,474k (± 0.05%)}	_{3,032,491k (± 9.76%)}	_~	_2,427,482k	_3,154,109k	_{p=1.000 n=6}
_{Parse Time}	_{7.00s (± 0.53%)}	_{6.97s (± 0.52%)}	_~	_6.91s	_7.00s	_{p=0.260 n=6}
_{Bind Time}	_{2.14s (± 1.40%)}	_{2.14s (± 1.45%)}	_~	_2.09s	_2.17s	_{p=0.747 n=6}
_{Check Time}	_{42.86s (± 0.21%)}	_{42.85s (± 0.56%)}	_~	_42.44s	_43.10s	_{p=0.873 n=6}
_{Emit Time}	_{3.53s (± 2.19%)}	_{3.54s (± 2.01%)}	_~	_3.43s	_3.62s	_{p=0.748 n=6}
_{Total Time}	_{55.52s (± 0.25%)}	_{55.49s (± 0.44%)}	_~	_55.07s	_55.79s	_{p=0.810 n=6}
_{self-compiler - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_262,667	_262,676	_{+9 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_106,849	_106,854	_{+5 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{440,455k (± 0.01%)}	_{440,425k (± 0.02%)}	_~	_440,289k	_440,493k	_{p=0.422 n=6}
_{Parse Time}	_{3.54s (± 0.66%)}	_{3.56s (± 0.92%)}	_~	_3.50s	_3.59s	_{p=0.167 n=6}
_{Bind Time}	_{1.32s (± 1.17%)}	_{1.32s (± 0.62%)}	_~	_1.31s	_1.33s	_{p=0.315 n=6}
_{Check Time}	_{18.97s (± 0.37%)}	_{18.95s (± 0.27%)}	_~	_18.87s	_19.00s	_{p=0.296 n=6}
_{Emit Time}	_{1.52s (± 1.38%)}	_{1.52s (± 1.13%)}	_~	_1.49s	_1.54s	_{p=0.807 n=6}
_{Total Time}	_{25.35s (± 0.32%)}	_{25.35s (± 0.30%)}	_~	_25.22s	_25.42s	_{p=0.872 n=6}
_{ts-pre-modules - node (v18.15.0, x64)}
_Errors	₇₀	₇₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_226,113	_226,113	_~	_~	_~	_{p=1.000 n=6}
_Types	_94,488	_94,488	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{371,400k (± 0.05%)}	_{371,346k (± 0.01%)}	_~	_371,309k	_371,432k	_{p=0.873 n=6}
_{Parse Time}	_{2.89s (± 1.29%)}	_{2.90s (± 1.08%)}	_~	_2.86s	_2.94s	_{p=0.748 n=6}
_{Bind Time}	_{1.60s (± 1.31%)}	_{1.59s (± 1.47%)}	_~	_1.55s	_1.61s	_{p=0.567 n=6}
_{Check Time}	_{16.47s (± 0.54%)}	_{16.46s (± 0.60%)}	_~	_16.35s	_16.64s	_{p=0.296 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{20.96s (± 0.47%)}	_{20.94s (± 0.62%)}	_~	_20.78s	_21.16s	_{p=0.521 n=6}
_{vscode - node (v18.15.0, x64)}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_3,230,018	_3,230,018	_~	_~	_~	_{p=1.000 n=6}
_Types	_1,095,648	_1,095,648	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{3,306,590k (± 0.00%)}	_{3,306,652k (± 0.00%)}	_~	_3,306,510k	_3,306,785k	_{p=0.378 n=6}
_{Parse Time}	_{11.71s (± 0.15%)}	_{11.74s (± 0.27%)}	_~	_11.70s	_11.79s	_{p=0.124 n=6}
_{Bind Time}	_{3.82s (± 0.51%)}	_{3.80s (± 0.45%)}	_~	_3.78s	_3.82s	_{p=0.102 n=6}
_{Check Time}	_{74.91s (± 0.40%)}	_{74.94s (± 0.44%)}	_~	_74.51s	_75.37s	_{p=0.936 n=6}
_{Emit Time}	_{23.23s (± 0.28%)}	_{23.20s (± 0.48%)}	_~	_22.98s	_23.26s	_{p=0.870 n=6}
_{Total Time}	_{113.67s (± 0.27%)}	_{113.67s (± 0.36%)}	_~	_113.02s	_114.17s	_{p=0.689 n=6}
_{webpack - node (v18.15.0, x64)}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_293,866	_293,866	_~	_~	_~	_{p=1.000 n=6}
_Types	_119,628	_119,628	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{446,935k (± 0.01%)}	_{446,999k (± 0.02%)}	_~	_446,939k	_447,132k	_{p=0.066 n=6}
_{Parse Time}	_{3.31s (± 0.37%)}	_{3.29s (± 0.17%)}	_~	_3.29s	_3.30s	_{p=0.090 n=6}
_{Bind Time}	_{1.48s (± 0.70%)}	_{1.46s (± 0.57%)}	_{-0.02s (- 1.24%)}	_1.45s	_1.47s	_{p=0.010 n=6}
_{Check Time}	_{15.62s (± 0.24%)}	_{15.65s (± 0.31%)}	_~	_15.57s	_15.70s	_{p=0.224 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{20.41s (± 0.15%)}	_{20.42s (± 0.22%)}	_~	_20.34s	_20.46s	_{p=0.572 n=6}
_{xstate-main - node (v18.15.0, x64)}
_Errors	₅	₅	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_559,094	_559,094	_~	_~	_~	_{p=1.000 n=6}
_Types	_187,011	_187,011	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{496,166k (± 0.03%)}	_{496,152k (± 0.03%)}	_~	_495,878k	_496,285k	_{p=0.873 n=6}
_{Parse Time}	_{3.42s (± 0.75%)}	_{3.43s (± 1.13%)}	_~	_3.40s	_3.48s	_{p=0.806 n=6}
_{Bind Time}	_{1.20s (± 0.86%)}	_{1.19s (± 1.14%)}	_~	_1.17s	_1.21s	_{p=0.241 n=6}
_{Check Time}	_{19.71s (± 1.06%)}	_{19.83s (± 2.07%)}	_~	_19.57s	_20.66s	_{p=0.688 n=6}
_{Emit Time}	_{0.01s (±154.76%)}	_0.00s	_~	_~	_~	_{p=0.174 n=6}
_{Total Time}	_{24.34s (± 0.89%)}	_{24.46s (± 1.80%)}	_~	_24.15s	_25.34s	_{p=0.748 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 · 2025-02-22T01:50:38Z

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

Everything looks the same!

You can check the log here.

typescript-bot · 2025-02-22T02:13:58Z

@jakebailey Here are the results of running the user tests with tsc comparing main and refs/pull/61061/merge:

Everything looks good!

jakebailey · 2025-02-24T19:57:07Z

src/services/goToDefinition.ts


 function getDefinitionFromSymbol(typeChecker: TypeChecker, symbol: Symbol, node: Node, failedAliasResolution?: boolean, declarationFilter?: (d: Declaration) => boolean): DefinitionInfo[] | undefined {
-    const filteredDeclarations = declarationFilter !== undefined ? filter(symbol.declarations, declarationFilter) : symbol.declarations;
+    const declarations = isTransientSymbol(symbol) && symbol.links.checkFlags & CheckFlags.Mapped && !symbol.declarations?.length ? symbol.links.syntheticOrigin?.declarations : symbol.declarations;


I find it sort of concerning to reach into the links like this; I can see maybe one or two other cases where we've done symbol.links outside the checker and I can't say I like those either. Is there no other way to do this?

I agree with your concern about reaching into symbol.links. I think there might be a better way to handle this. Maybe we can create a helper function that gets the documentation from the original symbol without directly accessing links. That would make the code more maintainable and less dependent on internal implementation details.

jakebailey · 2025-10-07T23:35:59Z

@typescript-bot pack this

typescript-bot · 2025-10-07T23:36:04Z

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

Command	Status	Results
`pack this`	✅ Started	✅ Results

typescript-bot · 2025-10-07T23:40:27Z

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/166266/artifacts?artifactName=tgz&fileId=5FD92AAADA8629D69643E2453E14CCCECF1C71249E36A15703159931900B77B602&fileName=/typescript-6.0.0-insiders.20251007.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]".;

support quick info and go to definition on mapped keys

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format and add tests

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jakebailey reviewed Feb 24, 2025

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support quick info and go to definition on mapped keys #61061

support quick info and go to definition on mapped keys #61061

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Zzzen commented Jan 28, 2025 •

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support quick info and go to definition on mapped keys #61061

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