typings: lib/internal/vm.js

PR-URL: #50112
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Franziska Hinkelmann <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: GeoffreyBooth

lib/internal/vm.js

@@ -31,10 +31,23 @@ const {
   },
 } = internalBinding('util');
 
+/**
+ * Checks if the given object is a context object.
+ * @param {object} object - The object to check.
+ * @returns {boolean} - Returns true if the object is a context object, else false.
+ */
 function isContext(object) {
   return object[contextify_context_private_symbol] !== undefined;
 }
 
+/**
+ * Retrieves the host-defined option ID based on the provided importModuleDynamically and hint.
+ * @param {import('internal/modules/esm/utils').ImportModuleDynamicallyCallback | undefined} importModuleDynamically -
+ * The importModuleDynamically function or undefined.
+ * @param {string} hint - The hint for the option ID.
+ * @returns {symbol | import('internal/modules/esm/utils').ImportModuleDynamicallyCallback} - The host-defined option
+ * ID.
+ */
 function getHostDefinedOptionId(importModuleDynamically, hint) {
   if (importModuleDynamically === vm_dynamic_import_main_context_default ||
       importModuleDynamically === vm_dynamic_import_default_internal) {
@@ -66,6 +79,12 @@ function getHostDefinedOptionId(importModuleDynamically, hint) {
   return Symbol(hint);
 }
 
+/**
+ * Registers a dynamically imported module for customization.
+ * @param {string} referrer - The path of the referrer module.
+ * @param {import('internal/modules/esm/utils').ImportModuleDynamicallyCallback} importModuleDynamically - The
+ * dynamically imported module function to be registered.
+ */
 function registerImportModuleDynamically(referrer, importModuleDynamically) {
   // If it's undefined or certain known symbol, there's no customization so
   // no need to register anything.
@@ -83,6 +102,25 @@ function registerImportModuleDynamically(referrer, importModuleDynamically) {
   });
 }
 
+/**
+ * Compiles a function from the given code string.
+ * @param {string} code - The code string to compile.
+ * @param {string} filename - The filename to use for the compiled function.
+ * @param {number} lineOffset - The line offset to use for the compiled function.
+ * @param {number} columnOffset - The column offset to use for the compiled function.
+ * @param {Buffer} [cachedData=undefined] - The cached data to use for the compiled function.
+ * @param {boolean} produceCachedData - Whether to produce cached data for the compiled function.
+ * @param {ReturnType<import('vm').createContext} [parsingContext=undefined] - The parsing context to use for the
+ * compiled function.
+ * @param {object[]} [contextExtensions=[]] - An array of context extensions to use for the compiled function.
+ * @param {string[]} [params] - An optional array of parameter names for the compiled function.
+ * @param {symbol} hostDefinedOptionId - A symbol referenced by the field `host_defined_option_symbol`.
+ * @param {import('internal/modules/esm/utils').ImportModuleDynamicallyCallback} [importModuleDynamically] -
+ * A function to use for dynamically importing modules.
+ * @returns {object} An object containing the compiled function and any associated data.
+ * @throws {TypeError} If any of the arguments are of the wrong type.
+ * @throws {ERR_INVALID_ARG_TYPE} If the parsing context is not a valid context object.
+ */
 function internalCompileFunction(
   code, filename, lineOffset, columnOffset,
   cachedData, produceCachedData, parsingContext, contextExtensions,
@@ -117,6 +155,19 @@ function internalCompileFunction(
   return result;
 }
 
+/**
+ * Creates a contextify script.
+ * @param {string} code - The code of the script.
+ * @param {string} filename - The filename of the script.
+ * @param {number} lineOffset - The line offset of the script.
+ * @param {number} columnOffset - The column offset of the script.
+ * @param {Buffer} cachedData - The cached data of the script.
+ * @param {boolean} produceCachedData - Indicates whether to produce cached data.
+ * @param {object} parsingContext - The parsing context of the script.
+ * @param {number} hostDefinedOptionId - The host-defined option ID.
+ * @param {boolean} importModuleDynamically - Indicates whether to import modules dynamically.
+ * @returns {ContextifyScript} The created contextify script.
+ */
 function makeContextifyScript(code,
                               filename,
                               lineOffset,
@@ -147,8 +198,13 @@ function makeContextifyScript(code,
   return script;
 }
 
-// Internal version of vm.Script.prototype.runInThisContext() which skips
-// argument validation.
+/**
+ * Runs a script in the current context.
+ * Internal version of `vm.Script.prototype.runInThisContext()` which skips argument validation.
+ * @param {ReturnType<makeContextifyScript>} script - The script to run.
+ * @param {boolean} displayErrors - Whether to display errors.
+ * @param {boolean} breakOnFirstLine - Whether to break on the first line.
+ */
 function runScriptInThisContext(script, displayErrors, breakOnFirstLine) {
   return ReflectApply(
     runInContext,