Registry / devops / rollup-plugin-purs

rollup-plugin-purs

library1.0.38jsnpmunverified

Rollup plugin to bundle PureScript modules into optimized JavaScript bundles. Current stable version is 1.0.38. It integrates PureScript compilation output with Rollup, offering tree shaking and advanced optimizations like uncurrying, inlining, dead code elimination, and constant propagation. Compared to purs bundle or webpack, it produces smaller file sizes (e.g., 35.7 kB vs 65.2 kB for a sample app). Requires manual PureScript compilation beforehand (e.g., with pulp build). Releases are infrequent; last update was in 2017. Not actively maintained, but functional for existing projects.

devops

npm install rollup-plugin-purs

github ↗package ↗

INSTALL

IMPORT

SIG · ROLLUP-PLUGIN-PURS

rollup-plugin-purs

devopsjavascriptv1.0.38

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import purs from 'rollup-plugin-purs'

✗ const purs = require('rollup-plugin-purs')

The package is ESM-only; CommonJS require will fail. Use import syntax.

purs

✓ import purs from 'rollup-plugin-purs'

✗ import { purs } from 'rollup-plugin-purs'

The plugin is exported as default, not named. Named import { purs } is incorrect.

Plugin

✓ import type { Plugin } from 'rollup'

✗ import { Plugin } from 'rollup-plugin-purs'

TypeScript type for the plugin configuration is not exported by this package; use rollup's Plugin type.

Basic Rollup config to bundle PureScript output. Requires prior PureScript compilation with pulp build.

// rollup.config.js import purs from 'rollup-plugin-purs'; export default { input: 'src/Main.purs', output: { file: 'bundle.js', format: 'iife', sourcemap: true }, plugins: [purs()] }; // Build: run 'pulp build -- --source-maps' first, then 'rollup -c'

Debug

Known issues

gotchaPlugin does not compile PureScript; you must run pulp build or purs compile first.

fix

Run 'pulp build -- --source-maps' or equivalent before running rollup.

affects: >=1.0.0

gotchaRequires Rollup version ^0.41.6; incompatible with newer Rollup versions (>=1.0.0).

fix

Use an older Rollup version (e.g., 0.41.6) or consider alternatives.

affects: >=1.0.0

gotchaassumePureVars optimization can break programs with impure FFI or unsafe functions.

fix

Set assumePureVars: false in options if using impure FFI.

affects: >=1.0.0

gotchadebug: true may display warnings about dynamic exports, require, or module; can be suppressed with comment pragmas.

fix

Add // rollup-plugin-purs ignore dynamic exports comments in source files.

affects: >=1.0.0

Errors

Common errors & fixes

Error: Cannot find module 'rollup-plugin-purs'

The package is not installed or npm install failed.

fix

Run 'npm install rollup-plugin-purs --save-dev'.

SyntaxError: Unexpected token 'export' — maybe you need to use CommonJS require?

Using require() instead of import on an ESM-only package.

fix

Use 'import purs from "rollup-plugin-purs"' in an ES module context or set type:"module" in package.json.

Error: The 'dest' option is deprecated. Use 'output.file' instead.

Rollup version mismatch: dest was used in older Rollup config.

fix

Use output.file instead of dest, or use Rollup ^0.41.6 which supports dest.

Upgrade

Version history

1.0.38latest on npm

Audit

Dependencies

rolluprequiredPeer dependency; requires rollup ^0.41.6 to work as a plugin.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/pauan/rollup-plugin-purs ↗

packagehttps://www.npmjs.com/package/rollup-plugin-purs ↗