Upgrade to TypeScript 7 - #440
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timotheeguerin merged 2 commits intoJul 15, 2026
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- Bump the typescript catalog to ^7.0.2 (native Go compiler). - Rewrite @alloy-js/cli 'alloy build' to shell out to the native tsc binary for type-checking and declaration emit, replacing the removed programmatic API. - Watch mode now uses Node's built-in recursive fs.watch instead of chokidar. - Silence api-extractor ae-unresolved-link in @alloy-js/typescript: it cannot resolve @link to namespace members TS7 emits as re-exports. - Raise @alloy-js/cli engines to Node >=22.
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timotheeguerin
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July 15, 2026 20:04
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Upgrades the repo to TypeScript 7 (the native Go compiler, now published as
typescript@7).Background
TypeScript 7's
typescriptpackage only ships thetscbinary plus a version export and a newunstable/*API — the classic programmatic compiler API (ts.createProgram,ts.sys,getParsedCommandLineOfConfigFile, watch host,formatDiagnostics…) is gone. The only place using it was@alloy-js/cli.Changes
typescript^6.0.3→^7.0.2.@alloy-js/clialloy buildrewritten to use the project's nativetscbinary:tsc --showConfig(child process).tsc -p <config>; error count parsed to preserve theBuild completed with N errors.message. JS emit still via babel.fs.watch(node:fs/promises) +tsc --watch— no morechokidardependency.tscthe consuming project has installed.@alloy-js/typescript: silenced api-extractorae-unresolved-link. api-extractor (bundles TS 5.9.3) can't resolve@linkreferences to namespace members that TS 7 emits as re-exports (export { FunctionParameters as Parameters }). Scoped to the only affected package.Validation
pnpm build(full workspace) ✔pnpm test— 1717/1717 ✔pnpm lint(oxlint--type-aware) ✔ ·pnpm format:check✔ ·chronus verify✔alloy build --watchsmoke-tested: edits, new files (incl. new subdirectories), and deletions all handled.