Sync upstream typescript-go by clintonjrobinson · Pull Request #2 · parable-work/typescript-go

clintonjrobinson · 2026-06-23T20:17:30Z

Summary

Merge latest microsoft/typescript-go main into the Parable fork.
Keep the fork-only delta limited to the README fork notice and shim/ re-export packages.
Confirm the existing compiler API shim still builds and passes its smoke test after the upstream sync.

Test plan

go build ./...
go test ./shim/

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microsoft#4264)

…sync downlevel (microsoft#3910) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

…icrosoft#4058)

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…eSymbols (microsoft#4263)

…s own key (microsoft#4285) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: RyanCavanaugh <6685088+RyanCavanaugh@users.noreply.github.com>

…oft#4260)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

…ft#4288) Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

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…e 2) (microsoft#3435)

…pted baselines (microsoft#3872) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: RyanCavanaugh <6685088+RyanCavanaugh@users.noreply.github.com> Co-authored-by: Jake Bailey <5341706+jakebailey@users.noreply.github.com>

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… emit features (microsoft#4306)

…e they no longer exist (microsoft#4303)

…icrosoft#3850)

…icrosoft#4318)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: DanielRosenwasser <972891+DanielRosenwasser@users.noreply.github.com> Co-authored-by: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>

…icrosoft#4320)

Co-authored-by: Piotr Tomiak <piotr.tomiak@jetbrains.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

…faultLibrary (microsoft#4323) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: andrewbranch <3277153+andrewbranch@users.noreply.github.com>

…t side (microsoft#4312)

…#4356)

…4377)

… across 1 directory (microsoft#4390) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…soft#4355)

)

…n't `<` (microsoft#4234)

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…t#4063)

… to `bigint` in the API (microsoft#4344) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: andrewbranch <3277153+andrewbranch@users.noreply.github.com>

…crosoft#4384)

…n types and signatures (microsoft#4341)

…e/upstream-20260623

mds-ant and others added 30 commits June 11, 2026 15:13

perf(checker): defer orderedSet map allocation until >16 elements (mi…

3b59895

…crosoft#4277)

Several performance optimizations for the scanner's hot path (microso…

cd961a7

…ft#4238)

Fix false TS1006 for included tsconfig JSON imports (microsoft#4279)

c7f7cb8

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Walk class children to find this property assignments beyond top level (

6038f11

microsoft#4264)

add localization for extension (microsoft#3834)

0a1ff41

Fix incorrect renaming of arguments in non-reference positions in a…

f83eec5

…sync downlevel (microsoft#3910) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Reparse non-identifier jsdoc names where possible, error otherwise (m…

f0113b7

…icrosoft#4058)

API: Add declaration property to IndexInfo. (microsoft#4273)

a58d885

LSP: accept null initializationOptions (microsoft#4281)

de1bb2e

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

TS GO API: add getCompletionsAtPosition to the API and support includ…

4a461b7

…eSymbols (microsoft#4263)

Dedupe cjs export assignments (microsoft#4284)

45df665

Don't provide auto-imports for non-identifiers (microsoft#4287)

42eb4d4

fix: release speculative parse-cache acquire using the acquired file'…

79fe60a

…s own key (microsoft#4285) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: RyanCavanaugh <6685088+RyanCavanaugh@users.noreply.github.com>

Fix stack overflow caused by simplification of recursive type (micros…

52a0fe6

…oft#4260)

Fix stack overflow crash in base constraint resolution (microsoft#4242)

4cf361f

Rebuilt CLI watcher around new fswatch package (microsoft#4026)

bb2240e

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Allow LSP server to use builtin watcher on Windows and macOS (microso…

3e6ed73

…ft#4288) Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Make LS checkers time out after being idle, segment based on use (tak…

7ce96c8

…e 2) (microsoft#3435)

Return diagnostics API positions as UTF-16 offsets (microsoft#4298)

0751b19

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Add missing diagnostic context setting logic for newer js declaration…

c78d39e

… emit features (microsoft#4306)

Better fix bug with this types and instantiateSymbol (microsoft#4307)

551b02d

Pin JS casing to generated Unicode data (microsoft#4321)

a7ae3a1

Ensure node_modules buckets are removed from auto-import registry onc…

f315ef9

…e they no longer exist (microsoft#4303)

Fixed CJS class expression exports emit anonymous constructor types (m…

b8e4490

…icrosoft#3850)

fix(4315): preserve modifier order when emitting private js methods (m…

d42388b

…icrosoft#4318)

API: remove omitempty from TypeResponse.Value to send empty string (m…

c90e1d4

…icrosoft#4320)

Store API node tables on SourceFile in data bag (microsoft#4327)

7eb731a

Co-authored-by: Piotr Tomiak <piotr.tomiak@jetbrains.com> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot AI and others added 20 commits June 16, 2026 00:09

Fix auto-import crash from unimplemented aliasResolver.IsSourceFileDe…

dd6bceb

…faultLibrary (microsoft#4323) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: andrewbranch <3277153+andrewbranch@users.noreply.github.com>

Fix redundant undefined wrapping in declaration emit (microsoft#4302)

462a1a4

API: add Signature implementation and improve object caching on clien…

6894935

…t side (microsoft#4312)

Note tsc for RC and above in README.me (microsoft#4340)

900f95a

Rebuilt build mode around fswatch package (microsoft#4326)

2fb5d4c

Update NOTICE and ensure it's inside packages (microsoft#4348)

241df12

Deduplicate declaration emit for this-assigned methods (microsoft#4351)

3af952d

Re-allow nested cjs export assignments in declaration emit (microsoft…

e578159

…#4356)

Fix nil pointer panic when extending an empty config file (microsoft#…

dc37b52

…4377)

Bump actions/checkout from 6.0.3 to 7.0.0 in the github-actions group…

97195f8

… across 1 directory (microsoft#4390) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

fix(4354): add tsconfig option errors from project diagnostics (micro…

997b92a

…soft#4355)

Fix generated Is* guards for type-parameter-kinded nodes (microsoft#4394

52ef010

)

Skip mark/rewind in tryParseTypeArgumentsInExpression when token is…

6a0ce63

…n't `<` (microsoft#4234)

Fix watches on symlinked directories (microsoft#4376)

133d33a

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Warn on TSServer Plugin Contributions from other extensions (microsof…

481a4aa

…t#4063)

Add per-kind literal type interfaces and decode BigInt literal values…

a844752

… to `bigint` in the API (microsoft#4344) Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: andrewbranch <3277153+andrewbranch@users.noreply.github.com>

Fix panic on non-string include/exclude/files in extended configs (mi…

9415beb

…crosoft#4384)

API: add the missing position and text getters to Node (microsoft#4308)

f6e1c6d

API: make object registries project-specific to avoid id collisions o…

0392487

…n types and signatures (microsoft#4341)

Merge remote-tracking branch 'refs/remotes/upstream/main' into upgrad…

b81e872

…e/upstream-20260623

clintonjrobinson merged commit 255f895 into main Jun 23, 2026
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Sync upstream typescript-go - #2

Sync upstream typescript-go#2
clintonjrobinson merged 50 commits into
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upgrade/upstream-20260623

clintonjrobinson commented Jun 23, 2026

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clintonjrobinson commented Jun 23, 2026

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