Apply a contextual type to empty arrays #51882

RyanCavanaugh · 2022-12-13T22:21:03Z

We'll need to discuss this test in particular: https://github.com/microsoft/TypeScript/compare/main...RyanCavanaugh:ctEmptyArrayRetry?expand=1#diff-143cc97a4709c639aa96ddd0c9cac92f3b8a11b104eb5611e0b83c145fdb571a ; I believe the contextual type providing logic is effectively wrong in this case and will try to make a demonstration of such.

Fixes #51853

RyanCavanaugh · 2022-12-13T22:29:46Z

@typescript-bot test this
@typescript-bot test top100
@typescript-bot user test this
@typescript-bot user test tsserver
@typescript-bot test tsserver top100
@typescript-bot run dt
@typescript-bot perf test this

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the diff-based user code test suite on this PR at eed0acb. You can monitor the build here.

Update: The results are in!

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the diff-based user code test suite (tsserver) on this PR at eed0acb. You can monitor the build here.

Update: The results are in!

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the extended test suite on this PR at eed0acb. You can monitor the build here.

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the diff-based top-repos suite (tsserver) on this PR at eed0acb. You can monitor the build here.

Update: The results are in!

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the perf test suite on this PR at eed0acb. You can monitor the build here.

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the diff-based top-repos suite on this PR at eed0acb. You can monitor the build here.

Update: The results are in!

typescript-bot · 2022-12-13T22:29:48Z

Heya @RyanCavanaugh, I've started to run the parallelized Definitely Typed test suite on this PR at eed0acb. You can monitor the build here.

RyanCavanaugh · 2022-12-13T22:31:54Z

@typescript-bot pack this

typescript-bot · 2022-12-13T22:31:56Z

Heya @RyanCavanaugh, I've started to run the tarball bundle task on this PR at eed0acb. You can monitor the build here.

typescript-bot · 2022-12-13T22:34:07Z

Hey @RyanCavanaugh, 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/140386/artifacts?artifactName=tgz&fileId=F6AAD7F5EB710C3771E32C2F0B84BF0D18775E64858DC65CEDC499B45BF1DC4902&fileName=/typescript-5.0.0-insiders.20221213.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/pr-build@5.0.0-pr-51882-10".;

typescript-bot · 2022-12-13T22:39:24Z

@RyanCavanaugh Here are the results of running the user test suite comparing main and refs/pull/51882/merge:

Everything looks good!

typescript-bot · 2022-12-13T22:42:14Z

@RyanCavanaugh Here are the results of running the user test suite comparing main and refs/pull/51882/merge:

Everything looks good!

typescript-bot · 2022-12-13T22:50:33Z

Heya @RyanCavanaugh, I've run the RWC suite on this PR - assuming you're on the TS core team, you can view the resulting diff here.

typescript-bot · 2022-12-13T23:55:58Z

@RyanCavanaugh Here are the results of running the top-repos suite comparing main and refs/pull/51882/merge:

Everything looks good!

typescript-bot · 2022-12-14T00:12:44Z

@RyanCavanaugh Here are the results of running the top-repos suite comparing main and refs/pull/51882/merge:

Something interesting changed - please have a look.

Details

felixrieseberg/windows95

⚠️ Note that built also had errors ⚠️

Req #441 - references
    at formatMessage2 (/typescript-main/built/local/tsserver.js:158985:21)
    at IOSession.writeMessage (/typescript-main/built/local/tsserver.js:159992:21)
    at IOSession.send (/typescript-main/built/local/tsserver.js:159989:10)
    at IOSession.doOutput (/typescript-main/built/local/tsserver.js:160036:10)
    at IOSession.onMessage (/typescript-main/built/local/tsserver.js:161647:14)
    at Interface.<anonymous> (/typescript-main/built/local/tsserver.js:163033:14)

Req #441 - references
    at formatMessage2 (/typescript-51882/built/local/tsserver.js:159004:21)
    at IOSession.writeMessage (/typescript-51882/built/local/tsserver.js:160011:21)
    at IOSession.send (/typescript-51882/built/local/tsserver.js:160008:10)
    at IOSession.doOutput (/typescript-51882/built/local/tsserver.js:160055:10)
    at IOSession.onMessage (/typescript-51882/built/local/tsserver.js:161666:14)
    at Interface.<anonymous> (/typescript-51882/built/local/tsserver.js:163052:14)

That is a filtered view of the text. To see the raw error text, go to RepoResults4/felixrieseberg.windows95.rawError.txt in the artifact folder

Last few requests

{"seq":438,"type":"request","command":"definitionAndBoundSpan","arguments":{"file":"@PROJECT_ROOT@/src/renderer/lib/_libwabt.js","line":13,"offset":95588}}
{"seq":439,"type":"request","command":"completionInfo","arguments":{"file":"@PROJECT_ROOT@/src/renderer/lib/_libwabt.js","line":13,"offset":96407,"includeExternalModuleExports":false,"includeInsertTextCompletions":true,"triggerKind":1}}
{"seq":440,"type":"request","command":"completionEntryDetails","arguments":{"file":"@PROJECT_ROOT@/src/renderer/lib/_libwabt.js","line":13,"offset":96407,"entryNames":["_"]}}
{"seq":441,"type":"request","command":"references","arguments":{"file":"@PROJECT_ROOT@/src/renderer/lib/_libwabt.js","line":13,"offset":97382}}

Repro Steps

git clone https://github.com/felixrieseberg/windows95 --recurse-submodules
In dir windows95, run git reset --hard 17a81393467e2668eb2eea291ab4b6a749756dad
In dir windows95, run yarn install --ignore-engines --ignore-scripts --silent
Back in the initial folder, download RepoResults4/felixrieseberg.windows95.replay.txt from the artifact folder
npm install --no-save @typescript/server-replay
npx tsreplay ./windows95 ./felixrieseberg.windows95.replay.txt path/to/tsserver.js
npx tsreplay --help to learn about helpful switches for debugging, logging, etc

palantir/blueprint

⚠️ Note that built also had errors ⚠️

Req #12600 - references
    at formatMessage2 (/typescript-main/built/local/tsserver.js:158985:21)
    at IOSession.writeMessage (/typescript-main/built/local/tsserver.js:159992:21)
    at IOSession.send (/typescript-main/built/local/tsserver.js:159989:10)
    at IOSession.doOutput (/typescript-main/built/local/tsserver.js:160036:10)
    at IOSession.onMessage (/typescript-main/built/local/tsserver.js:161647:14)
    at Interface.<anonymous> (/typescript-main/built/local/tsserver.js:163033:14)

Req #12600 - references
    at formatMessage2 (/typescript-51882/built/local/tsserver.js:159004:21)
    at IOSession.writeMessage (/typescript-51882/built/local/tsserver.js:160011:21)
    at IOSession.send (/typescript-51882/built/local/tsserver.js:160008:10)
    at IOSession.doOutput (/typescript-51882/built/local/tsserver.js:160055:10)
    at IOSession.onMessage (/typescript-51882/built/local/tsserver.js:161666:14)
    at Interface.<anonymous> (/typescript-51882/built/local/tsserver.js:163052:14)

That is a filtered view of the text. To see the raw error text, go to RepoResults4/palantir.blueprint.rawError.txt in the artifact folder

Last few requests

{"seq":12597,"type":"request","command":"completionInfo","arguments":{"file":"@PROJECT_ROOT@/site/docs/versions/1/docs-app.js","line":1,"offset":245891,"includeExternalModuleExports":false,"includeInsertTextCompletions":true,"triggerKind":2,"triggerCharacter":" "}}
{"seq":12598,"type":"request","command":"completionInfo","arguments":{"file":"@PROJECT_ROOT@/site/docs/versions/1/docs-app.js","line":1,"offset":246033,"includeExternalModuleExports":false,"includeInsertTextCompletions":true,"triggerKind":1}}
{"seq":12599,"type":"request","command":"completionEntryDetails","arguments":{"file":"@PROJECT_ROOT@/site/docs/versions/1/docs-app.js","line":1,"offset":246033,"entryNames":["arguments"]}}
{"seq":12600,"type":"request","command":"references","arguments":{"file":"@PROJECT_ROOT@/site/docs/versions/1/docs-app.js","line":1,"offset":246480}}

Repro Steps

git clone https://github.com/palantir/blueprint --recurse-submodules
In dir blueprint, run git reset --hard b6c1518ea2f524accfba8045ce6f22cac7c5b56e
In dir blueprint, run yarn install --ignore-engines --ignore-scripts --silent
Back in the initial folder, download RepoResults4/palantir.blueprint.replay.txt from the artifact folder
npm install --no-save @typescript/server-replay
npx tsreplay ./blueprint ./palantir.blueprint.replay.txt path/to/tsserver.js
npx tsreplay --help to learn about helpful switches for debugging, logging, etc

Mifrill · 2023-11-20T22:09:05Z

tests/baselines/reference/arrayContextualTyping.symbols

+>isCustom : Symbol(MyCustomArray.isCustom, Decl(arrayContextualTyping.ts, 1, 51))
+}


@RyanCavanaugh Could you please clarify what is the purpose of this isCustom property? Looking at this, it seems to me like it is a condition to run a different set of tests, if so it does not seem like a good practice to have conditional tests.

RyanCavanaugh and others added 2 commits December 12, 2022 21:28

WIP

7d7750d

Update baselines

a34c556

typescript-bot assigned RyanCavanaugh Dec 13, 2022

typescript-bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Dec 13, 2022

Lint

eed0acb

sandersn added the Experiment A fork with an experimental idea which might not make it into master label Dec 23, 2022

Mifrill reviewed Nov 20, 2023

View reviewed changes

RyanCavanaugh closed this Aug 2, 2024

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Apply a contextual type to empty arrays #51882

Apply a contextual type to empty arrays #51882

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felixrieseberg/windows95

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palantir/blueprint

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		>isCustom : Symbol(MyCustomArray.isCustom, Decl(arrayContextualTyping.ts, 1, 51))
		}

Apply a contextual type to empty arrays #51882

Apply a contextual type to empty arrays #51882

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