Function wrapSafe

lib/internal/modules/cjs/loader.js:1834–1884

* Wraps the given content in a script and runs it in a new context. * @param {string} filename The name of the file being loaded * @param {string} content The content of the file being loaded * @param {Module|undefined} cjsModuleInstance The CommonJS loader instance * @param {'commonjs'|undefine

(filename, content, cjsModuleInstance, format)

 * @returns {object}
 */
function wrapSafe(filename, content, cjsModuleInstance, format) {
  assert(format !== 'module', 'ESM should be handled in loadESMFromCJS()');
  const hostDefinedOptionId = vm_dynamic_import_default_internal;
  const importModuleDynamically = vm_dynamic_import_default_internal;
  if (patched) {
    const wrapped = Module.wrap(content);
    const script = makeContextifyScript(
      wrapped,                 // code
      filename,                // filename
      0,                       // lineOffset
      0,                       // columnOffset
      undefined,               // cachedData
      false,                   // produceCachedData
      undefined,               // parsingContext
      hostDefinedOptionId,     // hostDefinedOptionId
      importModuleDynamically, // importModuleDynamically
    );

    // Cache the source map for the module if present.
    const { sourceMapURL, sourceURL } = script;
    if (sourceMapURL) {
      maybeCacheSourceMap(filename, content, cjsModuleInstance, false, sourceURL, sourceMapURL);
    }

    return {
      __proto__: null,
      function: runScriptInThisContext(script, true, false),
      sourceMapURL,
    };
  }

  let shouldDetectModule = false;
  if (format !== 'commonjs') {
    if (cjsModuleInstance?.[kIsMainSymbol]) {
      // For entry points, format detection is used unless explicitly disabled.
      shouldDetectModule = getOptionValue('--experimental-detect-module');
    } else {
      // For modules being loaded by `require()`, if require(esm) is disabled,
      // don't try to reparse to detect format and just throw for ESM syntax.
      shouldDetectModule = getOptionValue('--require-module');
    }
  }
  const result = compileFunctionForCJSLoader(content, filename, false /* is_sea_main */, shouldDetectModule);

  // Cache the source map for the module if present.
  if (result.sourceMapURL) {
    maybeCacheSourceMap(filename, content, cjsModuleInstance, false, result.sourceURL, result.sourceMapURL);
  }

  return result;
}

/**
 * Run the file contents in the correct scope or sandbox. Expose the correct helper variables (`require`, `module`,