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/// <reference types="node" />
import { Service, CreateOptions } from './index';
export interface ReplService {
readonly state: EvalState;
/**
* Bind this REPL to a ts-node compiler service. A compiler service must be bound before `eval`-ing code or starting the REPL
*/
setService(service: Service): void;
/**
* Append code to the virtual <repl> source file, compile it to JavaScript, throw semantic errors if the typechecker is enabled,
* and execute it.
*
* Note: typically, you will want to call `start()` instead of using this method.
*
* @param code string of TypeScript.
*/
evalCode(code: string): any;
/**
* `eval` implementation compatible with node's REPL API
*
* Can be used in advanced scenarios if you want to manually create your own
* node REPL instance and delegate eval to this `ReplService`.
*
* Example:
*
* import {start} from 'repl';
* const replService: tsNode.ReplService = ...; // assuming you have already created a ts-node ReplService
* const nodeRepl = start({eval: replService.eval});
*/
nodeEval(code: string, context: any, _filename: string, callback: (err: Error | null, result?: any) => any): void;
evalAwarePartialHost: EvalAwarePartialHost;
/** Start a node REPL */
start(): void;
/**
* Start a node REPL, evaling a string of TypeScript before it starts.
* @deprecated
*/
start(code: string): void;
}
/** @category REPL */
export interface CreateReplOptions {
service?: Service;
state?: EvalState;
stdin?: NodeJS.ReadableStream;
stdout?: NodeJS.WritableStream;
stderr?: NodeJS.WritableStream;
}
/**
* Create a ts-node REPL instance.
*
* Pay close attention to the example below. Today, the API requires a few lines
* of boilerplate to correctly bind the `ReplService` to the ts-node `Service` and
* vice-versa.
*
* Usage example:
*
* const repl = tsNode.createRepl();
* const service = tsNode.create({...repl.evalAwarePartialHost});
* repl.setService(service);
* repl.start();
*
* @category REPL
*/
export declare function createRepl(options?: CreateReplOptions): ReplService;
/**
* Eval state management. Stores virtual `[eval].ts` file
*/
export declare class EvalState {
path: string;
__tsNodeEvalStateBrand: unknown;
constructor(path: string);
}
/**
* Filesystem host functions which are aware of the "virtual" `[eval].ts`, `<repl>`, or `[stdin].ts` file used to compile REPL inputs.
* Must be passed to `create()` to create a ts-node compiler service which can compile REPL inputs.
*/
export declare type EvalAwarePartialHost = Pick<CreateOptions, 'readFile' | 'fileExists'>;
export declare function createEvalAwarePartialHost(state: EvalState, composeWith?: EvalAwarePartialHost): EvalAwarePartialHost;