feat(error): add namespaced, serializable error domains - #7
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Adds a new `error` sub-export for defining error classes: domains are classes (so `instanceof` works against a whole domain, not just one error), error codes are namespaced via the existing `namespace` module, context merges domain defaults -> per-error defaults -> runtime context, and errors round-trip through JSON via `toJSON()`/`errors.parse()` with an `UnknownError` fallback for unregistered codes. Stack serialization defaults to `isDev` (new `src/lib/is-dev.ts` helper) and is configurable globally or per call. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Coverage Report for CI Build 30963464752Coverage increased (+0.05%) to 95.68%Details
Uncovered ChangesNo uncovered changes found. Coverage RegressionsNo coverage regressions found. Coverage Stats
💛 - Coveralls |
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Summary
errorsub-export for defining namespaced, serializable error classes grouped into domains (namespacing via the existingnamespacemodule).instanceofworks against a whole domain (or sub-domain), not just a single error; domains are abstract and throw if instantiated directly.ErrorDomain.define()batch-defines one or more error classes at once, merging context in the order domain defaults → per-error defaults → runtime context.JSON.stringify()/errors.parse()(accepting a JSON string or an already-parsed object) via an exact-snapshot reconstruction, falling back toUnknownErrorfor unregistered codes; stack serialization defaults to a newisDevhelper (src/lib/is-dev.ts) and is configurable globally (errors.serialize.includeStack) or per call.package.json,jsr.json,.size-limit.json, and the root README's utilities table.Test plan
npm run test:unit— 420 tests pass across the project, including 26 for the newerrormodulenpm run test:types/npm run test:lint/npm run test:formatnpm run test:build:size— new module measures 868 B brotli, under its 875 B limit