initial commit

benchmarks/result/construction.bench.ts

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+import { bench, describe } from 'vitest';
+import { STANDARD } from '../helpers/bench-options.js';
+import {
+  ok,
+  err,
+  ntOk,
+  ntErr,
+  TsOk,
+  TsErr,
+  OxOk,
+  OxErr,
+  E,
+  pipe,
+  TmResult,
+} from '../helpers/imports.js';
+
+// ---------------------------------------------------------------------------
+// Ok / Right / success construction
+// ---------------------------------------------------------------------------
+
+describe('Result construction — Ok (primitive)', () => {
+  bench('native-monad', () => { ok(42); }, STANDARD);
+  bench('neverthrow', () => { ntOk(42); }, STANDARD);
+  bench('ts-results-es', () => { TsOk(42); }, STANDARD);
+  bench('oxide.ts', () => { OxOk(42); }, STANDARD);
+  bench('fp-ts', () => { E.right(42); }, STANDARD);
+  bench('true-myth', () => { TmResult.ok(42); }, STANDARD);
+});
+
+describe('Result construction — Err (primitive)', () => {
+  bench('native-monad', () => { err('fail'); }, STANDARD);
+  bench('neverthrow', () => { ntErr('fail'); }, STANDARD);
+  bench('ts-results-es', () => { TsErr('fail'); }, STANDARD);
+  bench('oxide.ts', () => { OxErr('fail'); }, STANDARD);
+  bench('fp-ts', () => { E.left('fail'); }, STANDARD);
+  bench('true-myth', () => { TmResult.err('fail'); }, STANDARD);
+});
+
+describe('Result construction — Ok (object payload)', () => {
+  const value = { id: 1, name: 'Alice', roles: ['admin', 'user'] };
+
+  bench('native-monad', () => { ok(value); }, STANDARD);
+  bench('neverthrow', () => { ntOk(value); }, STANDARD);
+  bench('ts-results-es', () => { TsOk(value); }, STANDARD);
+  bench('oxide.ts', () => { OxOk(value); }, STANDARD);
+  bench('fp-ts', () => { E.right(value); }, STANDARD);
+  bench('true-myth', () => { TmResult.ok(value); }, STANDARD);
+});
+
+describe('Result construction — Err (Error object)', () => {
+  const error = new Error('something went wrong');
+
+  bench('native-monad', () => { err(error); }, STANDARD);
+  bench('neverthrow', () => { ntErr(error); }, STANDARD);
+  bench('ts-results-es', () => { TsErr(error); }, STANDARD);
+  bench('oxide.ts', () => { OxErr(error); }, STANDARD);
+  bench('fp-ts', () => { E.left(error); }, STANDARD);
+  bench('true-myth', () => { TmResult.err(error); }, STANDARD);
+});