module: open stat/readPackage to mutations

Author: arcanis

lib/internal/modules/cjs/loader.js

@@ -162,6 +162,7 @@ function stat(filename) {
   }
   return result;
 }
+Module._stat = stat;
 
 function updateChildren(parent, child, scan) {
   const children = parent?.children;
@@ -334,6 +335,7 @@ function readPackage(requestPath) {
     throw e;
   }
 }
+Module._readPackage = readPackage;
 
 function readPackageScope(checkPath) {
   const rootSeparatorIndex = StringPrototypeIndexOf(checkPath, sep);
@@ -343,7 +345,7 @@ function readPackageScope(checkPath) {
     checkPath = StringPrototypeSlice(checkPath, 0, separatorIndex);
     if (StringPrototypeEndsWith(checkPath, sep + 'node_modules'))
       return false;
-    const pjson = readPackage(checkPath + sep);
+    const pjson = Module._readPackage(checkPath + sep);
     if (pjson) return {
       data: pjson,
       path: checkPath,
@@ -353,7 +355,7 @@ function readPackageScope(checkPath) {
 }
 
 function tryPackage(requestPath, exts, isMain, originalPath) {
-  const pkg = readPackage(requestPath)?.main;
+  const pkg = Module._readPackage(requestPath)?.main;
 
   if (!pkg) {
     return tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
@@ -399,7 +401,7 @@ const realpathCache = new SafeMap();
 // keep symlinks intact, otherwise resolve to the
 // absolute realpath.
 function tryFile(requestPath, isMain) {
-  const rc = stat(requestPath);
+  const rc = Module._stat(requestPath);
   if (rc !== 0) return;
   if (preserveSymlinks && !isMain) {
     return path.resolve(requestPath);
@@ -493,7 +495,7 @@ function resolveExports(nmPath, request) {
   if (!name)
     return;
   const pkgPath = path.resolve(nmPath, name);
-  const pkg = readPackage(pkgPath);
+  const pkg = Module._readPackage(pkgPath);
   if (pkg?.exports != null) {
     try {
       return finalizeEsmResolution(packageExportsResolve(
@@ -533,7 +535,7 @@ Module._findPath = function(request, paths, isMain) {
   for (let i = 0; i < paths.length; i++) {
     // Don't search further if path doesn't exist
     const curPath = paths[i];
-    if (curPath && stat(curPath) < 1) continue;
+    if (curPath && Module._stat(curPath) < 1) continue;
 
     if (!absoluteRequest) {
       const exportsResolved = resolveExports(curPath, request);
@@ -544,7 +546,7 @@ Module._findPath = function(request, paths, isMain) {
     const basePath = path.resolve(curPath, request);
     let filename;
 
-    const rc = stat(basePath);
+    const rc = Module._stat(basePath);
     if (!trailingSlash) {
       if (rc === 0) {  // File.
         if (!isMain) {