interpret
A dictionary of file extensions and associated module loaders.
What is it
This is used by Liftoff to automatically require dependencies for configuration files, and by rechoir for registering module loaders.
How to use it
Consumers should use the exported extensions
or jsVariants
object to determine which module should be loaded for a given extension. If a matching extension is found, consumers should do the following:
- If the value is null, do nothing.
- If the value is a string, try to require it.
- If the value is an object, try to require the
module
property. If successful, theregister
property (a function) should be called with the module passed as the first argument. Advanced: An optional second argument can be provided to replace the default configuration for a hook. - If the value is an array, iterate over it, attempting step #2 or #3 until one of the attempts does not throw.
API
This module provides two top-level properties: extensions
and jsVariants
.
Note: This module does not depend on any of the loaders it recommends; instead, end-users are expected to install the hooks they want to use for the file types they want to use. See supported extensions and their hooks in the sections below.
extensions
A mapping of file extensions to modules which provide a require.extensions loader.
File extension keys are all in the format of '.foo'
or '.foo.bar'
and module loader values are either null
if the loader should fallthrough to node's loader,
or a string representing the module to be required, an object of { module: 'foobar', register: function }
, or an array containing those strings and/or objects.
A sample of an entry containing multiple hooks would look like:
{
'.ts': [
'ts-node/register',
'sucrase/register/ts',
{
module: '@babel/register',
register: function(hook) {
hook({
extensions: '.ts',
rootMode: 'upward-optional',
ignore: [ignoreNonBabelAndNodeModules],
});
},
},
],
}
Supported extensions and their hooks
.babel.js:
- '@babel/register'
.babel.jsx:
- '@babel/register'
.babel.ts:
- '@babel/register'
.babel.tsx:
- '@babel/register'
.cjs:
- interpret/cjs-stub
.coffee:
- coffeescript/register
.coffee.md:
- coffeescript/register
.cts:
- ts-node/register
.esbuild.js:
- esbuild-register/dist/node
.esbuild.jsx:
- esbuild-register/dist/node
.esbuild.ts:
- esbuild-register/dist/node
.esbuild.tsx:
- esbuild-register/dist/node
.esm.js:
- esm
.js:
- built-in node.js loader
.json:
- built-in node.js loader
.json5:
- json5/lib/register
.jsx:
- '@babel/register'
- sucrase/register/jsx
.litcoffee:
- coffeescript/register
.mdx:
- '@mdx-js/register'
.mjs:
- interpret/mjs-stub
.node:
- built-in node.js loader
.sucrase.js:
- sucrase/dist/register
.sucrase.jsx:
- sucrase/dist/register
.sucrase.ts:
- sucrase/dist/register
.sucrase.tsx:
- sucrase/dist/register
.swc.js:
- '@swc/register'
.swc.jsx:
- '@swc/register'
.swc.ts:
- '@swc/register'
.swc.tsx:
- '@swc/register'
.toml:
- toml-require
.ts:
- ts-node/register
- sucrase/register/ts
- '@babel/register'
- esbuild-register/dist/node
- '@swc/register'
.tsx:
- ts-node/register
- sucrase/register/tsx
- '@babel/register'
- esbuild-register/dist/node
- '@swc/register'
.yaml:
- yaml-hook/register
.yml:
- yaml-hook/register
jsVariants
The jsVariants
is the same mapping as above, but only include the extensions which are variants of JavaScript.
Supported extensions and their hooks
.babel.js:
- '@babel/register'
.babel.jsx:
- '@babel/register'
.babel.ts:
- '@babel/register'
.babel.tsx:
- '@babel/register'
.cjs:
- interpret/cjs-stub
.coffee:
- coffeescript/register
.coffee.md:
- coffeescript/register
.esbuild.js:
- esbuild-register/dist/node
.esbuild.jsx:
- esbuild-register/dist/node
.esbuild.ts:
- esbuild-register/dist/node
.esbuild.tsx:
- esbuild-register/dist/node
.esm.js:
- esm
.js:
- built-in node.js loader
.jsx:
- '@babel/register'
- sucrase/register/jsx
.litcoffee:
- coffeescript/register
.mdx:
- '@mdx-js/register'
.mjs:
- interpret/mjs-stub
.sucrase.js:
- sucrase/dist/register
.sucrase.jsx:
- sucrase/dist/register
.sucrase.ts:
- sucrase/dist/register
.sucrase.tsx:
- sucrase/dist/register
.swc.js:
- '@swc/register'
.swc.jsx:
- '@swc/register'
.swc.ts:
- '@swc/register'
.swc.tsx:
- '@swc/register'
.ts:
- ts-node/register
- sucrase/register/ts
- '@babel/register'
- esbuild-register/dist/node
- '@swc/register'
.tsx:
- ts-node/register
- sucrase/register/tsx
- '@babel/register'
- esbuild-register/dist/node
- '@swc/register'
License
MIT