@pdsl/babel-plugin-pdsl

@pdsl/babel-plugin-pdsl

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

This should be considered experimental for the time being.

Prerequisites

Ensure you have pdsl installed in your project.

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 function calls:

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))));