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declare module 'node:vm' {
export * from 'vm';
}
declare module 'vm' {
interface Context extends NodeJS.Dict<any> { }
interface BaseOptions {
/**
* Specifies the filename used in stack traces produced by this script.
* Default: `''`.
*/
filename?: string;
/**
* Specifies the line number offset that is displayed in stack traces produced by this script.
* Default: `0`.
*/
lineOffset?: number;
/**
* Specifies the column number offset that is displayed in stack traces produced by this script.
* Default: `0`
*/
columnOffset?: number;
}
interface ScriptOptions extends BaseOptions {
displayErrors?: boolean;
timeout?: number;
cachedData?: Buffer;
/** @deprecated in favor of `script.createCachedData()` */
produceCachedData?: boolean;
}
interface RunningScriptOptions extends BaseOptions {
/**
* When `true`, if an `Error` occurs while compiling the `code`, the line of code causing the error is attached to the stack trace.
* Default: `true`.
*/
displayErrors?: boolean;
/**
* Specifies the number of milliseconds to execute code before terminating execution.
* If execution is terminated, an `Error` will be thrown. This value must be a strictly positive integer.
*/
timeout?: number;
/**
* If `true`, the execution will be terminated when `SIGINT` (Ctrl+C) is received.
* Existing handlers for the event that have been attached via `process.on('SIGINT')` will be disabled during script execution, but will continue to work after that.
* If execution is terminated, an `Error` will be thrown.
* Default: `false`.
*/
breakOnSigint?: boolean;
/**
* If set to `afterEvaluate`, microtasks will be run immediately after the script has run.
*/
microtaskMode?: 'afterEvaluate';
}
interface CompileFunctionOptions extends BaseOptions {
/**
* Provides an optional data with V8's code cache data for the supplied source.
*/
cachedData?: Buffer;
/**
* Specifies whether to produce new cache data.
* Default: `false`,
*/
produceCachedData?: boolean;
/**
* The sandbox/context in which the said function should be compiled in.
*/
parsingContext?: Context;
/**
* An array containing a collection of context extensions (objects wrapping the current scope) to be applied while compiling
*/
contextExtensions?: Object[];
}
interface CreateContextOptions {
/**
* Human-readable name of the newly created context.
* @default 'VM Context i' Where i is an ascending numerical index of the created context.
*/
name?: string;
/**
* Corresponds to the newly created context for display purposes.
* The origin should be formatted like a `URL`, but with only the scheme, host, and port (if necessary),
* like the value of the `url.origin` property of a URL object.
* Most notably, this string should omit the trailing slash, as that denotes a path.
* @default ''
*/
origin?: string;
codeGeneration?: {
/**
* If set to false any calls to eval or function constructors (Function, GeneratorFunction, etc)
* will throw an EvalError.
* @default true
*/
strings?: boolean;
/**
* If set to false any attempt to compile a WebAssembly module will throw a WebAssembly.CompileError.
* @default true
*/
wasm?: boolean;
};
}
type MeasureMemoryMode = 'summary' | 'detailed';
interface MeasureMemoryOptions {
/**
* @default 'summary'
*/
mode?: MeasureMemoryMode;
context?: Context;
}
interface MemoryMeasurement {
total: {
jsMemoryEstimate: number;
jsMemoryRange: [number, number];
};
}
class Script {
constructor(code: string, options?: ScriptOptions);
runInContext(contextifiedSandbox: Context, options?: RunningScriptOptions): any;
runInNewContext(sandbox?: Context, options?: RunningScriptOptions): any;
runInThisContext(options?: RunningScriptOptions): any;
createCachedData(): Buffer;
cachedDataRejected?: boolean;
}
function createContext(sandbox?: Context, options?: CreateContextOptions): Context;
function isContext(sandbox: Context): boolean;
function runInContext(code: string, contextifiedSandbox: Context, options?: RunningScriptOptions | string): any;
function runInNewContext(code: string, sandbox?: Context, options?: RunningScriptOptions | string): any;
function runInThisContext(code: string, options?: RunningScriptOptions | string): any;
function compileFunction(code: string, params?: ReadonlyArray<string>, options?: CompileFunctionOptions): Function;
/**
* Measure the memory known to V8 and used by the current execution context or a specified context.
*
* The format of the object that the returned Promise may resolve with is
* specific to the V8 engine and may change from one version of V8 to the next.
*
* The returned result is different from the statistics returned by
* `v8.getHeapSpaceStatistics()` in that `vm.measureMemory()` measures
* the memory reachable by V8 from a specific context, while
* `v8.getHeapSpaceStatistics()` measures the memory used by an instance
* of V8 engine, which can switch among multiple contexts that reference
* objects in the heap of one engine.
*
* @experimental
*/
function measureMemory(options?: MeasureMemoryOptions): Promise<MemoryMeasurement>;
}
|
