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Title: Narrow generic conditional and indexed access return types when checking return statements, no conditional expression support by gabritto · Pull Request #60268 · microsoft/TypeScript · GitHub

Open Graph Title: Narrow generic conditional and indexed access return types when checking return statements, no conditional expression support by gabritto · Pull Request #60268 · microsoft/TypeScript

X Title: Narrow generic conditional and indexed access return types when checking return statements, no conditional expression support by gabritto · Pull Request #60268 · microsoft/TypeScript

Description: TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - Narrow generic conditional and indexed access return types when checking return statements, no conditional expression support by gabritto · Pull Request #60268 · microsoft/TypeScript

Open Graph Description: A version of #56941 without any of the extra stuff for checking conditional expressions.

X Description: A version of #56941 without any of the extra stuff for checking conditional expressions.

Opengraph URL: https://github.com/microsoft/TypeScript/pull/60268

X: @github

direct link

Domain: github.com

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Files changedhttps://github.com/microsoft/TypeScript/pull/60268/files
Narrow generic conditional and indexed access return types when checking return statements, no conditional expression supporthttps://github.com/microsoft/TypeScript/pull/60268#top
gabrittohttps://github.com/gabritto
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Oct 18, 2024https://github.com/microsoft/TypeScript/pull/60268#issue-2596117931
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/60268
#56941https://github.com/microsoft/TypeScript/pull/56941
Please reload this pagehttps://github.com/microsoft/TypeScript/pull/60268
gabrittohttps://github.com/gabritto
May 15, 2023 18:15https://github.com/microsoft/TypeScript/pull/60268#commits-pushed-0d393e3
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WIP: custom instantiationhttps://github.com/microsoft/TypeScript/pull/60268/commits/0d393e324acb8353d386b4723756e914feefbd27
0d393e3https://github.com/microsoft/TypeScript/pull/60268/commits/0d393e324acb8353d386b4723756e914feefbd27
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fix more thingshttps://github.com/microsoft/TypeScript/pull/60268/commits/a1d9f89f5054034899d8ffd467898407223a3201
a1d9f89https://github.com/microsoft/TypeScript/pull/60268/commits/a1d9f89f5054034899d8ffd467898407223a3201
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latest fixeshttps://github.com/microsoft/TypeScript/pull/60268/commits/b9495a988e79515a8f411b210ef25f6532d1d4ee
b9495a9https://github.com/microsoft/TypeScript/pull/60268/commits/b9495a988e79515a8f411b210ef25f6532d1d4ee
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Merge branch 'main' into gabritto/d2https://github.com/microsoft/TypeScript/pull/60268/commits/81cdee5ee98570d1944295359f50eb1c4ed27334
81cdee5https://github.com/microsoft/TypeScript/pull/60268/commits/81cdee5ee98570d1944295359f50eb1c4ed27334
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fix bare type parameter instantiationhttps://github.com/microsoft/TypeScript/pull/60268/commits/af57b3469c8e064595209ebb4cef120bbf8fda9c
af57b34https://github.com/microsoft/TypeScript/pull/60268/commits/af57b3469c8e064595209ebb4cef120bbf8fda9c
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change binder. BROKENhttps://github.com/microsoft/TypeScript/pull/60268/commits/01152a0df832520205c9b3498ed315ee89a9efef
01152a0https://github.com/microsoft/TypeScript/pull/60268/commits/01152a0df832520205c9b3498ed315ee89a9efef
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fix binder changehttps://github.com/microsoft/TypeScript/pull/60268/commits/eac319203a0da13ff58b0d7e0858e7f9ec4129f0
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clean up + testshttps://github.com/microsoft/TypeScript/pull/60268/commits/199ecd028f0a0427d3bf1795b382db8661ef39b8
199ecd0https://github.com/microsoft/TypeScript/pull/60268/commits/199ecd028f0a0427d3bf1795b382db8661ef39b8
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Merge branch 'main' into gabritto/d2https://github.com/microsoft/TypeScript/pull/60268/commits/23e3d33042674a5857dc24916656dce42c89e786
23e3d33https://github.com/microsoft/TypeScript/pull/60268/commits/23e3d33042674a5857dc24916656dce42c89e786
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defer conditional unless narrowinghttps://github.com/microsoft/TypeScript/pull/60268/commits/d9ac1027a371842567bc1f3e8bcfa594ea763915
d9ac102https://github.com/microsoft/TypeScript/pull/60268/commits/d9ac1027a371842567bc1f3e8bcfa594ea763915
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don't skip jsdoc type assertionshttps://github.com/microsoft/TypeScript/pull/60268/commits/b4910f45f8d9b1a44ae714e5ef0be865594ec292
b4910f4https://github.com/microsoft/TypeScript/pull/60268/commits/b4910f45f8d9b1a44ae714e5ef0be865594ec292
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more fixeshttps://github.com/microsoft/TypeScript/pull/60268/commits/6258bc0ae2fcb900ab93a116afb934f4b5ca726f
6258bc0https://github.com/microsoft/TypeScript/pull/60268/commits/6258bc0ae2fcb900ab93a116afb934f4b5ca726f
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WIP: account for pre-existing mappinghttps://github.com/microsoft/TypeScript/pull/60268/commits/de3428d887b21a2836e791ed60383e89e78886a7
de3428dhttps://github.com/microsoft/TypeScript/pull/60268/commits/de3428d887b21a2836e791ed60383e89e78886a7
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only narrow when we take a true branch of a conditionalhttps://github.com/microsoft/TypeScript/pull/60268/commits/04980d3e7bfc2457d305cdb5df3a0e3dd2a8a1bc
04980d3https://github.com/microsoft/TypeScript/pull/60268/commits/04980d3e7bfc2457d305cdb5df3a0e3dd2a8a1bc
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small fix + new testshttps://github.com/microsoft/TypeScript/pull/60268/commits/e60a625288302f2aceca6d53effe68089a4064b6
e60a625https://github.com/microsoft/TypeScript/pull/60268/commits/e60a625288302f2aceca6d53effe68089a4064b6
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fix optional parameter handling and shadowinghttps://github.com/microsoft/TypeScript/pull/60268/commits/ee2d1bad15f115ac7c0f213ace2bcfb8118909d7
ee2d1bahttps://github.com/microsoft/TypeScript/pull/60268/commits/ee2d1bad15f115ac7c0f213ace2bcfb8118909d7
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fix skip parentheseshttps://github.com/microsoft/TypeScript/pull/60268/commits/b8ce4903dac236e2f426bc5f0d4555c71592e46c
b8ce490https://github.com/microsoft/TypeScript/pull/60268/commits/b8ce4903dac236e2f426bc5f0d4555c71592e46c
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fix updates to binder, cleanup in checkerhttps://github.com/microsoft/TypeScript/pull/60268/commits/24397676014f3e4b5b6ffbe112a57e33c9f293d4
2439767https://github.com/microsoft/TypeScript/pull/60268/commits/24397676014f3e4b5b6ffbe112a57e33c9f293d4
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Merge branch 'main' into gabritto/d2https://github.com/microsoft/TypeScript/pull/60268/commits/3f504f4fbc1caf9c10814d48d8897a34f8a34dec
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HasFlowNode update & fixeshttps://github.com/microsoft/TypeScript/pull/60268/commits/5e8ca3ebdbf0cde7bdaf03e79fbc7d627fe0c09a
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cleanup; always check conditional expression's condition inside retur…https://github.com/microsoft/TypeScript/pull/60268/commits/534cc38847246051ff301bd1401b65abc023e71b
534cc38https://github.com/microsoft/TypeScript/pull/60268/commits/534cc38847246051ff301bd1401b65abc023e71b
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update test after merginghttps://github.com/microsoft/TypeScript/pull/60268/commits/1dc9ab55c873cf6a4f00990526df9843ec7456d6
1dc9ab5https://github.com/microsoft/TypeScript/pull/60268/commits/1dc9ab55c873cf6a4f00990526df9843ec7456d6
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maybe make binder change fasterhttps://github.com/microsoft/TypeScript/pull/60268/commits/a94bc2316c91750d032229c00326c4abe334c500
a94bc23https://github.com/microsoft/TypeScript/pull/60268/commits/a94bc2316c91750d032229c00326c4abe334c500
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don't narrow if conditional has infer type paramshttps://github.com/microsoft/TypeScript/pull/60268/commits/046b53c3a67ce63ff3bc1e5b007e16eff1877a3b
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don't walk up parents when binding conditional expressionhttps://github.com/microsoft/TypeScript/pull/60268/commits/5a83feb3e66e62a6adacc80c555ee14f3709f56d
5a83febhttps://github.com/microsoft/TypeScript/pull/60268/commits/5a83feb3e66e62a6adacc80c555ee14f3709f56d
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add promise and generator testshttps://github.com/microsoft/TypeScript/pull/60268/commits/1ac4a588ec22c9ab53ce558e806a66688b90546e
1ac4a58https://github.com/microsoft/TypeScript/pull/60268/commits/1ac4a588ec22c9ab53ce558e806a66688b90546e
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get rid of casthttps://github.com/microsoft/TypeScript/pull/60268/commits/db219a3f54e5dd88c906637aeac956fbec6cf3bf
db219a3https://github.com/microsoft/TypeScript/pull/60268/commits/db219a3f54e5dd88c906637aeac956fbec6cf3bf
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add indexed access testshttps://github.com/microsoft/TypeScript/pull/60268/commits/56792a1c03510bd3c9587f4229181c97b6568014
56792a1https://github.com/microsoft/TypeScript/pull/60268/commits/56792a1c03510bd3c9587f4229181c97b6568014
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WIPhttps://github.com/microsoft/TypeScript/pull/60268/commits/b292bd8dea0f602c558f0dcb05701ae36ac1d9ed
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September 9, 2024 13:41https://github.com/microsoft/TypeScript/pull/60268#commits-pushed-10403cf
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refactoringhttps://github.com/microsoft/TypeScript/pull/60268/commits/10403cff5dbd75ac4880e17cdc7a9d6f181c8d02
10403cfhttps://github.com/microsoft/TypeScript/pull/60268/commits/10403cff5dbd75ac4880e17cdc7a9d6f181c8d02
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switch reference detection algorithmhttps://github.com/microsoft/TypeScript/pull/60268/commits/99d3cd5350a8d8d31bbcfbfefa1e5f060f13eab1
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refactor and add more testshttps://github.com/microsoft/TypeScript/pull/60268/commits/39d2f2bc1ddb80ffb8ab0322614214168399fe29
39d2f2bhttps://github.com/microsoft/TypeScript/pull/60268/commits/39d2f2bc1ddb80ffb8ab0322614214168399fe29
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remove unusedhttps://github.com/microsoft/TypeScript/pull/60268/commits/42f7a2d07f0dc48415f2a1f31f1a256b598a0ddd
42f7a2dhttps://github.com/microsoft/TypeScript/pull/60268/commits/42f7a2d07f0dc48415f2a1f31f1a256b598a0ddd
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Merge branch 'main' into gabritto/d2-detecthttps://github.com/microsoft/TypeScript/pull/60268/commits/678d2e00218d4a4f65c891c0bd663bc68623e1d1
678d2e0https://github.com/microsoft/TypeScript/pull/60268/commits/678d2e00218d4a4f65c891c0bd663bc68623e1d1
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update baselineshttps://github.com/microsoft/TypeScript/pull/60268/commits/7e1fe01f6b76bec603ff9b32adadbcacd24f41d8
7e1fe01https://github.com/microsoft/TypeScript/pull/60268/commits/7e1fe01f6b76bec603ff9b32adadbcacd24f41d8
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refactor and fix validation of conditional return typehttps://github.com/microsoft/TypeScript/pull/60268/commits/bbaf88f900a31237ed1e0362c327f181ea34d19b
bbaf88fhttps://github.com/microsoft/TypeScript/pull/60268/commits/bbaf88f900a31237ed1e0362c327f181ea34d19b
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Merge branch 'main' into gabritto/d2-detecthttps://github.com/microsoft/TypeScript/pull/60268/commits/a8200ecd93c7914311a5168d17164f7a93f267b4
a8200echttps://github.com/microsoft/TypeScript/pull/60268/commits/a8200ecd93c7914311a5168d17164f7a93f267b4
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fmthttps://github.com/microsoft/TypeScript/pull/60268/commits/47d8d3f929a21f0755ce9fbf6a8d0f7d63571d05
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cache intermediate results for conditional validationhttps://github.com/microsoft/TypeScript/pull/60268/commits/228148d5d044fcef4752ccbd3baac93cf1be567e
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