next/dist/esm/server/require-hook.js

The React Framework

// Synchronously inject a require hook for webpack and webpack/. It's required to use the internal ncc webpack version.
// This is needed for userland plugins to attach to the same webpack instance as Next.js'.
// Individually compiled modules are as defined for the compilation in bundles/webpack/packages/*.
// This module will only be loaded once per process.
const { dirname  } = require("path");
const mod = require("module");
const resolveFilename = mod._resolveFilename;
const hookPropertyMap = new Map();
let aliasedPrebundledReact = false;
const resolve = process.env.NEXT_MINIMAL ? __non_webpack_require__.resolve : require.resolve;
const toResolveMap = (map)=>Object.entries(map).map(([key, value])=>[
            key,
            resolve(value)
        ]);
// these must use require.resolve to be statically analyzable
export const defaultOverrides = {
    "styled-jsx": dirname(require.resolve("styled-jsx/package.json")),
    "styled-jsx/style": require.resolve("styled-jsx/style")
};
export const baseOverrides = {
    react: "next/dist/compiled/react",
    "react/package.json": "next/dist/compiled/react/package.json",
    "react/jsx-runtime": "next/dist/compiled/react/jsx-runtime",
    "react/jsx-dev-runtime": "next/dist/compiled/react/jsx-dev-runtime",
    "react-dom": "next/dist/compiled/react-dom/server-rendering-stub",
    "react-dom/package.json": "next/dist/compiled/react-dom/package.json",
    "react-dom/client": "next/dist/compiled/react-dom/client",
    "react-dom/server": "next/dist/compiled/react-dom/server",
    "react-dom/server.browser": "next/dist/compiled/react-dom/server.browser",
    "react-dom/server.edge": "next/dist/compiled/react-dom/server.edge",
    "react-server-dom-webpack/client": "next/dist/compiled/react-server-dom-webpack/client",
    "react-server-dom-webpack/client.edge": "next/dist/compiled/react-server-dom-webpack/client.edge",
    "react-server-dom-webpack/server.edge": "next/dist/compiled/react-server-dom-webpack/server.edge",
    "react-server-dom-webpack/server.node": "next/dist/compiled/react-server-dom-webpack/server.node"
};
export const experimentalOverrides = {
    react: "next/dist/compiled/react-experimental",
    "react/jsx-runtime": "next/dist/compiled/react-experimental/jsx-runtime",
    "react/jsx-dev-runtime": "next/dist/compiled/react-experimental/jsx-dev-runtime",
    "react-dom": "next/dist/compiled/react-dom-experimental/server-rendering-stub",
    "react/package.json": "next/dist/compiled/react-experimental/package.json",
    "react-dom/package.json": "next/dist/compiled/react-dom-experimental/package.json",
    "react-dom/client": "next/dist/compiled/react-dom-experimental/client",
    "react-dom/server": "next/dist/compiled/react-dom-experimental/server",
    "react-dom/server.browser": "next/dist/compiled/react-dom-experimental/server.browser",
    "react-dom/server.edge": "next/dist/compiled/react-dom-experimental/server.edge",
    "react-server-dom-webpack/client": "next/dist/compiled/react-server-dom-webpack-experimental/client",
    "react-server-dom-webpack/client.edge": "next/dist/compiled/react-server-dom-webpack-experimental/client.edge",
    "react-server-dom-webpack/server.edge": "next/dist/compiled/react-server-dom-webpack-experimental/server.edge",
    "react-server-dom-webpack/server.node": "next/dist/compiled/react-server-dom-webpack-experimental/server.node"
};
export function addHookAliases(aliases = []) {
    for (const [key, value] of aliases){
        hookPropertyMap.set(key, value);
    }
}
// Add default aliases
addHookAliases(toResolveMap(defaultOverrides));
// Override built-in React packages if necessary
function overrideReact() {
    if (process.env.__NEXT_PRIVATE_PREBUNDLED_REACT) {
        aliasedPrebundledReact = true;
        // Require these modules with static paths to make sure they are tracked by
        // NFT when building the app in standalone mode, as we are now conditionally
        // aliasing them it's tricky to track them in build time.
        if (process.env.__NEXT_PRIVATE_PREBUNDLED_REACT === "experimental") {
            addHookAliases(toResolveMap(experimentalOverrides));
        } else {
            addHookAliases(toResolveMap(baseOverrides));
        }
    }
}
overrideReact();
mod._resolveFilename = (function(originalResolveFilename, requestMap, request, parent, isMain, options) {
    if (process.env.__NEXT_PRIVATE_PREBUNDLED_REACT && !aliasedPrebundledReact) {
        // In case the environment variable is set after the module is loaded.
        overrideReact();
    }
    const hookResolved = requestMap.get(request);
    if (hookResolved) request = hookResolved;
    return originalResolveFilename.call(mod, request, parent, isMain, options);
// We use `bind` here to avoid referencing outside variables to create potential memory leaks.
}).bind(null, resolveFilename, hookPropertyMap);

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