tmu
08384bbc82
Introduce the core builder and pattern constructors:
- match(value): chain .with(pattern, handler) and terminate with
.exhaustive() (throws on no match) or .otherwise(handler).
- P.literal, P.type, P.when, P.any, P.shape for pattern construction.
- Each pattern is a Matcher<T> whose matches acts as a type guard, so
handler parameters are narrowed to the matched type.
The MatchBuilder accumulates handlers and returns a new builder per
.with() call (immutable chaining); finalization runs the cases in order
and returns the first match's handler result.
TypeScript configuration relaxed in .oxlintrc.json:
- Disable eslint/no-undefined (we use undefined as the no-match sentinel)
- Disable eslint/sort-keys (handler order matters; alphabetical would
be wrong)
- Disable eslint/id-length (T/R/U/V generics are standard TS convention)
- Disable import/no-named-export (false positive for library entry points)
Verified:
- tsc --noEmit passes with strict + noUncheckedIndexedAccess
- tsc -p tsconfig.build.json emits dist/*.js + .d.ts + sourcemaps
- node -e "import('./dist/index.js')" loads and exposes { match, P }
38 lines
890 B
JSON
38 lines
890 B
JSON
{
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"$schema": "./node_modules/oxlint/configuration_schema.json",
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"plugins": [
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"typescript",
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"unicorn",
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"oxc",
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"import"
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],
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"categories": {
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"correctness": "error",
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"suspicious": "error",
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"perf": "warn",
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"style": "warn",
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"restriction": "error",
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"nursery": "off"
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},
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"rules": {
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"eslint/no-undefined": "off",
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"eslint/sort-keys": "off",
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"eslint/id-length": "off",
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"import/no-named-export": "off"
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},
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"env": {
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"builtin": true,
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"es2024": true,
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"node": true
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},
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"overrides": [
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{
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"files": ["**/*.test.ts"],
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"rules": {
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"no-unused-expressions": "off",
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"no-empty-file": "off"
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}
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}
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],
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"ignorePatterns": ["dist", "node_modules", "coverage"]
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} |