fp-compiler

bun add @stopcock/fp
bun add -d @stopcock/fp-compiler

The compiler recognizes imported pipe, flow, and compile calls plus operators from @stopcock/fp/array, then replaces compatible chains with checked-in loop templates. Compilation happens in the build tool and does not use runtime evaluation.

import { defineConfig } from 'vite'
import { stopcockFp } from '@stopcock/fp-compiler'

export default defineConfig({
  plugins: [
    stopcockFp.vite({
      diagnostics: 'summary',
    }),
  ],
})

The Unplugin instance also provides Rollup, esbuild, and webpack adapters. It understands namespace, named, aliased, and wrapper-package imports, while lexically shadowed bindings and unsupported sites remain ordinary FP calls.

Exact semantics are the default. assumePure: true enables proven pure execution rewrites (this release includes map ... map -> length callback elision); argument expressions still evaluate exactly once, and operator construction stays observable only at a residual or otherwise non-fully-lowered site. Use include and exclude to filter files, importSources and arrayImportSources for wrapper packages, and diagnostics: 'error' for a fail-closed build.

import { transformStopcockPipelines } from '@stopcock/fp-compiler'

const result = transformStopcockPipelines(source, 'example.ts', {
  diagnostics: 'verbose',
})

The programmatic result contains transformed code, a source map, the selected semantics, and a diagnostic for every transformed or skipped site.