@pdsl/babel-plugin-pdsl

This plugin speeds up pdsl in babelified codebases by pre-compiling p-expressions to predicate function definitions.

This aught to work but should be considered experimental for the time being until we have more tests around it.

Prerequisites

• pdsl (v3.5.4+)
• Babel (v7.5+)

Installation

Install the plugin with yarn or npm.

yarn add --dev @pdsl/babel-plugin-pdsl

npm install -D @pdsl/babel-plugin-pdsl

Configuration

Add the plugin to your .bablerc:

{
  "plugins": ["@pdsl/babel-plugin-pdsl"]
}

NOTE: Ensure the plugin is placed before any module resolution plugins.

How this works

This plugin parses p-expressions and repaces them with helper function calls in your code:

Input

import p from "pdsl";

const notNil = p`!(null|undefined)`;
const hasName = p`{name}`;
const isTrue = p`true`;
const hasNameWithFn = p`{name:${a => a.length > 10}}`;

Output

import { val, not, or, obj, entry, pred } from "pdsl/helpers";

const notNil = val(not(or(val(null), val(undefined))));
const hasName = val(obj("name"));
const isTrue = val(true);
const hasNameWithFn = val(obj(entry("name", pred(a => a.length > 10))));