babel/packages/babel-register/src/nodeWrapper.js
2021-01-22 11:08:20 +01:00

22 lines
744 B
JavaScript

/**
* This file wraps the implementation of register so all modules `require()`-ed
* internally within register are stored in a separate module cache.
* This prevents un-transformed modules being stored in global module cache,
* and allows register to transform these modules if they are loaded externally.
*/
const Module = require("module");
const globalModuleCache = Module._cache;
const internalModuleCache = Object.create(null);
Module._cache = internalModuleCache;
const node = require("./node");
Module._cache = globalModuleCache;
// Add source-map-support to global cache as it's stateful
const smsPath = require.resolve("source-map-support");
globalModuleCache[smsPath] = internalModuleCache[smsPath];
module.exports = node;