lib: remove aix directory case for package reader

Author: anonrig

lib/internal/modules/package_json_reader.js

@@ -15,7 +15,6 @@ const { kEmptyObject } = require('internal/util');
 const { fileURLToPath, pathToFileURL } = require('internal/url');
 
 const cache = new SafeMap();
-const isAIX = process.platform === 'aix';
 
 let manifest;
 
@@ -45,10 +44,7 @@ function read(jsonPath, { base, specifier, isESM } = kEmptyObject) {
     return cache.get(jsonPath);
   }
 
-  const {
-    0: string,
-    1: containsKeys,
-  } = internalModuleReadJSON(
+  const string = internalModuleReadJSON(
     toNamespacedPath(jsonPath),
   );
   const result = {
@@ -62,14 +58,7 @@ function read(jsonPath, { base, specifier, isESM } = kEmptyObject) {
     imports: undefined,
   };
 
-  // Folder read operation succeeds in AIX.
-  // For libuv change, see https://github.com/libuv/libuv/pull/2025.
-  // https://github.com/nodejs/node/pull/48477#issuecomment-1604586650
-  // TODO(anonrig): Follow-up on this change and remove it since it is a
-  // semver-major change.
-  const isResultValid = isAIX && !isESM ? containsKeys : string !== undefined;
-
-  if (isResultValid) {
+  if (string !== undefined) {
     let parsed;
     try {
       parsed = JSONParse(string);

src/node_file.cc

@@ -54,7 +54,6 @@ namespace fs {
 
 using v8::Array;
 using v8::BigInt;
-using v8::Boolean;
 using v8::Context;
 using v8::EscapableHandleScope;
 using v8::Function;
@@ -1032,15 +1031,13 @@ static void InternalModuleReadJSON(const FunctionCallbackInfo<Value>& args) {
       env, permission::PermissionScope::kFileSystemRead, path.ToStringView());
 
   if (strlen(*path) != path.length()) {
-    args.GetReturnValue().Set(Array::New(isolate));
     return;  // Contains a nul byte.
   }
   uv_fs_t open_req;
   const int fd = uv_fs_open(loop, &open_req, *path, O_RDONLY, 0, nullptr);
   uv_fs_req_cleanup(&open_req);
 
   if (fd < 0) {
-    args.GetReturnValue().Set(Array::New(isolate));
     return;
   }
 
@@ -1067,7 +1064,6 @@ static void InternalModuleReadJSON(const FunctionCallbackInfo<Value>& args) {
     uv_fs_req_cleanup(&read_req);
 
     if (numchars < 0) {
-      args.GetReturnValue().Set(Array::New(isolate));
       return;
     }
     offset += numchars;
@@ -1079,42 +1075,10 @@ static void InternalModuleReadJSON(const FunctionCallbackInfo<Value>& args) {
   }
   const size_t size = offset - start;
 
-  // TODO(anonrig): Follow-up on removing the following changes for AIX.
-  char* p = &chars[start];
-  char* pe = &chars[size];
-  char* pos[2];
-  char** ppos = &pos[0];
-
-  while (p < pe) {
-    char c = *p++;
-    if (c == '\\' && p < pe && *p == '"') p++;
-    if (c != '"') continue;
-    *ppos++ = p;
-    if (ppos < &pos[2]) continue;
-    ppos = &pos[0];
-
-    char* s = &pos[0][0];
-    char* se = &pos[1][-1];  // Exclude quote.
-    size_t n = se - s;
-
-    if (n == 4) {
-      if (0 == memcmp(s, "main", 4)) break;
-      if (0 == memcmp(s, "name", 4)) break;
-      if (0 == memcmp(s, "type", 4)) break;
-    } else if (n == 7) {
-      if (0 == memcmp(s, "exports", 7)) break;
-      if (0 == memcmp(s, "imports", 7)) break;
-    }
-  }
-
-  Local<Value> return_value[] = {
+  args.GetReturnValue().Set(
       String::NewFromUtf8(
           isolate, &chars[start], v8::NewStringType::kNormal, size)
-          .ToLocalChecked(),
-      Boolean::New(isolate, p < pe ? true : false)};
-
-  args.GetReturnValue().Set(
-      Array::New(isolate, return_value, arraysize(return_value)));
+          .ToLocalChecked());
 }
 
 // Used to speed up module loading.  Returns 0 if the path refers to

test/parallel/test-module-binding.js

@@ -9,17 +9,17 @@ const { readFileSync } = require('fs');
 const { strictEqual, deepStrictEqual } = require('assert');
 
 {
-  strictEqual(internalModuleReadJSON('nosuchfile')[0], undefined);
+  strictEqual(internalModuleReadJSON('nosuchfile'), undefined);
 }
 {
-  strictEqual(internalModuleReadJSON(fixtures.path('empty.txt'))[0], '');
+  strictEqual(internalModuleReadJSON(fixtures.path('empty.txt')), '');
 }
 {
-  strictEqual(internalModuleReadJSON(fixtures.path('empty-with-bom.txt'))[0], '');
+  strictEqual(internalModuleReadJSON(fixtures.path('empty-with-bom.txt')), '');
 }
 {
   const filename = fixtures.path('require-bin/package.json');
-  const returnValue = JSON.parse(internalModuleReadJSON(filename)[0]);
+  const returnValue = JSON.parse(internalModuleReadJSON(filename));
   const file = JSON.parse(readFileSync(filename, 'utf-8'));
   const expectedValue = filterOwnProperties(file, ['name', 'main', 'exports', 'imports', 'type']);
   deepStrictEqual({

test/parallel/test-module-loading-error.js

@@ -84,10 +84,15 @@ assert.throws(
     message: 'The argument \'id\' must be a non-empty string. Received \'\''
   });
 
-assert.throws(
-  () => { require('../fixtures/packages/is-dir'); },
-  {
-    code: 'MODULE_NOT_FOUND',
-    message: /Cannot find module '\.\.\/fixtures\/packages\/is-dir'/
-  }
-);
+// Folder read operation succeeds in AIX.
+// For libuv change, see https://github.com/libuv/libuv/pull/2025.
+// https://github.com/nodejs/node/pull/48477#issuecomment-1604586650
+if (process.platform !== 'aix') {
+  assert.throws(
+    () => { require('../fixtures/packages/is-dir'); },
+    {
+      code: 'MODULE_NOT_FOUND',
+      message: /Cannot find module '\.\.\/fixtures\/packages\/is-dir'/
+    }
+  );
+}