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fix CI: stop fixture programs parsing the default lib (spec timeouts)

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The coverage CI lane timed out (5000ms/test) in verify-export-jsdoc.spec.ts:
every test builds a ts.Program, and the fixture branch of
loadCompilerOptions omitted noLib, so each of the 34 tests parsed the
full default lib — measured 231ms/program bare, ~1.5s/test under
coverage instrumentation locally, past 5s on a 2-core runner. Fixtures
are self-contained and nothing in the walk resolves a lib symbol:
noLib + types:[] drops program creation to ~1ms and the spec's
coverage-mode test time from 53s to 0.16s. The real-repo branch
(tsconfig.base.json options) is untouched.
This commit is contained in:
Tianyi Cui
2026-07-07 16:22:43 +08:00
parent 6d6b554fdf
commit 3c572cf70a
1 changed files with 6 additions and 4 deletions
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10
scripts/verify-export-jsdoc.ts
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@@ -510,15 +510,17 @@ function checkScope(statements: readonly ts.Statement[], prefix: string, w: Walk
* Compiler options for the walk's program. The real repo hands over its
* tsconfig.base.json (whose `paths` map resolves cross-package imports to
* source, so heritage-member lookups see seam types); a fixture root without
* one gets bare defaults — fixtures are single-file and self-contained.
* Emit-side options are stripped: the walk never emits or asks for
* diagnostics, it only binds types on demand.
* one gets `noLib` + no `@types` — fixtures are single-file and
* self-contained, nothing in the walk resolves a lib symbol, and default-lib
* parsing is ~99% of per-program cost (it made the fixture spec time out
* under CI coverage instrumentation). Emit-side options are stripped: the
* walk never emits or asks for diagnostics, it only binds types on demand.
* @param scanRoot - the root being scanned.
* @returns compiler options for ts.createProgram.
*/
function loadCompilerOptions(scanRoot: string): ts.CompilerOptions {
const cfgPath = resolve(scanRoot, 'tsconfig.base.json')
if (!existsSync(cfgPath)) return { skipLibCheck: true }
if (!existsSync(cfgPath)) return { skipLibCheck: true, noLib: true, types: [] }
const cfg = ts.readConfigFile(cfgPath, ts.sys.readFile.bind(ts.sys)) as { config?: unknown }
const parsed = ts.parseJsonConfigFileContent(cfg.config ?? {}, ts.sys, scanRoot)
return {