error on variables that are used but never initialized #55887
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The TypeScript team hasn't accepted the linked issue #23305. If you can get it accepted, this PR will have a better chance of being reviewed. |
Zzzen
commented
Sep 27, 2023
src/compiler/checker.ts
Outdated
| @@ -2147,7 +2147,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker { | |||
| var deferredGlobalClassAccessorDecoratorResultType: GenericType | undefined; | |||
| var deferredGlobalClassFieldDecoratorContextType: GenericType | undefined; | |||
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| var allPotentiallyUnusedIdentifiers = new Map<Path, PotentiallyUnusedIdentifier[]>(); // key is file name | |||
| var allPotentiallyUnusedOrUninitializedIdentifiers = new Map<Path, PotentiallyUnusedIdentifier[]>(); // key is file name | |||
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Will allLocalIdentifiers be a better variable name?
I assume you meant “initialized” here. |
Zzzen
changed the title
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@typescript-bot pack this |
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Heya @DanielRosenwasser, I've started to run the diff-based user code test suite on this PR at ff025b3. You can monitor the build here. Update: The results are in! |
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Heya @DanielRosenwasser, I've started to run the regular perf test suite on this PR at ff025b3. You can monitor the build here. Update: The results are in! |
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Heya @DanielRosenwasser, I've started to run the tarball bundle task on this PR at ff025b3. You can monitor the build here. |
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Heya @DanielRosenwasser, I've started to run the diff-based user code test suite (tsserver) on this PR at ff025b3. You can monitor the build here. Update: The results are in! |
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Heya @DanielRosenwasser, I've started to run the diff-based top-repos suite on this PR at ff025b3. You can monitor the build here. Update: The results are in! |
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Heya @DanielRosenwasser, I've started to run the diff-based top-repos suite (tsserver) on this PR at ff025b3. You can monitor the build here. Update: The results are in! |
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Hey @DanielRosenwasser, I've packed this into an installable tgz. You can install it for testing by referencing it in your and then running There is also a playground for this build and an npm module you can use via |
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@DanielRosenwasser Here are the results of running the user test suite comparing Everything looks good! |
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@DanielRosenwasser Here are the results of running the user test suite comparing There were infrastructure failures potentially unrelated to your change:
Otherwise... Something interesting changed - please have a look. Details
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@DanielRosenwasser Here they are:
CompilerComparison Report - baseline..pr
System info unknown
Hosts
Scenarios
tsserverComparison Report - baseline..pr
System info unknown
Hosts
Scenarios
StartupComparison Report - baseline..pr
System info unknown
Hosts
Scenarios
Developer Information: |
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Hm, perf result indicates that adding this prop has moved Symbol into a new size class, given the memory increase. |
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@DanielRosenwasser Here are the results of running the top-repos suite comparing Something interesting changed - please have a look. DetailsServer exited prematurely with code unknown and signal SIGABRTAffected reposcalcom/cal.comRaw error text:RepoResults7/calcom.cal.com.rawError.txt in the artifact folder
Last few requests{"seq":728,"type":"request","command":"navto","arguments":{"searchValue":"a","maxResultCount":256}}
{"seq":729,"type":"request","command":"navto","arguments":{"searchValue":"a1R","maxResultCount":256}}
{"seq":730,"type":"request","command":"updateOpen","arguments":{"changedFiles":[],"closedFiles":["@PROJECT_ROOT@/apps/api/test/lib/bookings/_post.test.ts"],"openFiles":[]}}
{"seq":731,"type":"request","command":"updateOpen","arguments":{"changedFiles":[],"closedFiles":[],"openFiles":[{"file":"@PROJECT_ROOT@/apps/web/components/AppListCard.tsx","projectRootPath":"@PROJECT_ROOT@"}]}}
Repro steps
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@DanielRosenwasser Here are the results of running the top-repos suite comparing Something interesting changed - please have a look. Details
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I spent a bit looking at the breaks and decided to take a break. There was one example of a TODO which is questionable - I didn't quite understand that. For the most part, in the top 300 TypeScript projects on GitHub, the only real false negatives are variables that get assigned in a |
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Just to be clear: "False negative" in this context means "this should be an error but isn't", correct? I'm a little confused by the |
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Hey @gabritto, I've packed this into an installable tgz. You can install it for testing by referencing it in your and then running There is also a playground for this build and an npm module you can use via |
gabritto
requested changes
Aug 7, 2024
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@typescript-bot test it |
gabritto
approved these changes
Aug 8, 2024
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Hey @gabritto, the results of running the DT tests are ready. There were interesting changes: Branch only errors:Package: svelte-leafletjs Package: raphael Package: nodal Package: rx-lite-async Package: bluebird |
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@gabritto Here are the results of running the user tests with tsc comparing Everything looks good! |
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@gabritto Here they are:
tscComparison Report - baseline..pr
System info unknown
Hosts
Scenarios
Developer Information: |
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@typescript-bot pack this |
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Hey @DanielRosenwasser, I've packed this into an installable tgz. You can install it for testing by referencing it in your and then running There is also a playground for this build and an npm module you can use via |
DanielRosenwasser
previously requested changes
Aug 19, 2024
gabritto
approved these changes
Aug 20, 2024
This was referenced Aug 22, 2024
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Fixes #23305