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declare module "repl" {
import { Interface, Completer, AsyncCompleter } from "readline";
import { Context } from "vm";
import { InspectOptions } from "util";
interface ReplOptions {
/**
* The input prompt to display.
* Default: `"> "`
*/
prompt?: string;
/**
* The `Readable` stream from which REPL input will be read.
* Default: `process.stdin`
*/
input?: NodeJS.ReadableStream;
/**
* The `Writable` stream to which REPL output will be written.
* Default: `process.stdout`
*/
output?: NodeJS.WritableStream;
/**
* If `true`, specifies that the output should be treated as a TTY terminal, and have
* ANSI/VT100 escape codes written to it.
* Default: checking the value of the `isTTY` property on the output stream upon
* instantiation.
*/
terminal?: boolean;
/**
* The function to be used when evaluating each given line of input.
* Default: an async wrapper for the JavaScript `eval()` function. An `eval` function can
* error with `repl.Recoverable` to indicate the input was incomplete and prompt for
* additional lines.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_default_evaluation
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_custom_evaluation_functions
*/
eval?: REPLEval;
/**
* If `true`, specifies that the default `writer` function should include ANSI color
* styling to REPL output. If a custom `writer` function is provided then this has no
* effect.
* Default: the REPL instance's `terminal` value.
*/
useColors?: boolean;
/**
* If `true`, specifies that the default evaluation function will use the JavaScript
* `global` as the context as opposed to creating a new separate context for the REPL
* instance. The node CLI REPL sets this value to `true`.
* Default: `false`.
*/
useGlobal?: boolean;
/**
* If `true`, specifies that the default writer will not output the return value of a
* command if it evaluates to `undefined`.
* Default: `false`.
*/
ignoreUndefined?: boolean;
/**
* The function to invoke to format the output of each command before writing to `output`.
* Default: a wrapper for `util.inspect`.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_customizing_repl_output
*/
writer?: REPLWriter;
/**
* An optional function used for custom Tab auto completion.
*
* @see https://nodejs.org/dist/latest-v11.x/docs/api/readline.html#readline_use_of_the_completer_function
*/
completer?: Completer | AsyncCompleter;
/**
* A flag that specifies whether the default evaluator executes all JavaScript commands in
* strict mode or default (sloppy) mode.
* Accepted values are:
* - `repl.REPL_MODE_SLOPPY` - evaluates expressions in sloppy mode.
* - `repl.REPL_MODE_STRICT` - evaluates expressions in strict mode. This is equivalent to
* prefacing every repl statement with `'use strict'`.
*/
replMode?: typeof REPL_MODE_SLOPPY | typeof REPL_MODE_STRICT;
/**
* Stop evaluating the current piece of code when `SIGINT` is received, i.e. `Ctrl+C` is
* pressed. This cannot be used together with a custom `eval` function.
* Default: `false`.
*/
breakEvalOnSigint?: boolean;
}
type REPLEval = (this: REPLServer, evalCmd: string, context: Context, file: string, cb: (err: Error | null, result: any) => void) => void;
type REPLWriter = (this: REPLServer, obj: any) => string;
/**
* This is the default "writer" value, if none is passed in the REPL options,
* and it can be overridden by custom print functions.
*/
const writer: REPLWriter & { options: InspectOptions };
type REPLCommandAction = (this: REPLServer, text: string) => void;
interface REPLCommand {
/**
* Help text to be displayed when `.help` is entered.
*/
help?: string;
/**
* The function to execute, optionally accepting a single string argument.
*/
action: REPLCommandAction;
}
/**
* Provides a customizable Read-Eval-Print-Loop (REPL).
*
* Instances of `repl.REPLServer` will accept individual lines of user input, evaluate those
* according to a user-defined evaluation function, then output the result. Input and output
* may be from `stdin` and `stdout`, respectively, or may be connected to any Node.js `stream`.
*
* Instances of `repl.REPLServer` support automatic completion of inputs, simplistic Emacs-style
* line editing, multi-line inputs, ANSI-styled output, saving and restoring current REPL session
* state, error recovery, and customizable evaluation functions.
*
* Instances of `repl.REPLServer` are created using the `repl.start()` method and _should not_
* be created directly using the JavaScript `new` keyword.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_repl
*/
class REPLServer extends Interface {
/**
* The `vm.Context` provided to the `eval` function to be used for JavaScript
* evaluation.
*/
readonly context: Context;
/**
* Outdated alias for `input`.
*/
readonly inputStream: NodeJS.ReadableStream;
/**
* Outdated alias for `output`.
*/
readonly outputStream: NodeJS.WritableStream;
/**
* The `Readable` stream from which REPL input will be read.
*/
readonly input: NodeJS.ReadableStream;
/**
* The `Writable` stream to which REPL output will be written.
*/
readonly output: NodeJS.WritableStream;
/**
* The commands registered via `replServer.defineCommand()`.
*/
readonly commands: { readonly [name: string]: REPLCommand | undefined };
/**
* A value indicating whether the REPL is currently in "editor mode".
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_commands_and_special_keys
*/
readonly editorMode: boolean;
/**
* A value indicating whether the `_` variable has been assigned.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_assignment_of_the_underscore_variable
*/
readonly underscoreAssigned: boolean;
/**
* The last evaluation result from the REPL (assigned to the `_` variable inside of the REPL).
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_assignment_of_the_underscore_variable
*/
readonly last: any;
/**
* A value indicating whether the `_error` variable has been assigned.
*
* @since v9.8.0
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_assignment_of_the_underscore_variable
*/
readonly underscoreErrAssigned: boolean;
/**
* The last error raised inside the REPL (assigned to the `_error` variable inside of the REPL).
*
* @since v9.8.0
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_assignment_of_the_underscore_variable
*/
readonly lastError: any;
/**
* Specified in the REPL options, this is the function to be used when evaluating each
* given line of input. If not specified in the REPL options, this is an async wrapper
* for the JavaScript `eval()` function.
*/
readonly eval: REPLEval;
/**
* Specified in the REPL options, this is a value indicating whether the default
* `writer` function should include ANSI color styling to REPL output.
*/
readonly useColors: boolean;
/**
* Specified in the REPL options, this is a value indicating whether the default `eval`
* function will use the JavaScript `global` as the context as opposed to creating a new
* separate context for the REPL instance.
*/
readonly useGlobal: boolean;
/**
* Specified in the REPL options, this is a value indicating whether the default `writer`
* function should output the result of a command if it evaluates to `undefined`.
*/
readonly ignoreUndefined: boolean;
/**
* Specified in the REPL options, this is the function to invoke to format the output of
* each command before writing to `outputStream`. If not specified in the REPL options,
* this will be a wrapper for `util.inspect`.
*/
readonly writer: REPLWriter;
/**
* Specified in the REPL options, this is the function to use for custom Tab auto-completion.
*/
readonly completer: Completer | AsyncCompleter;
/**
* Specified in the REPL options, this is a flag that specifies whether the default `eval`
* function should execute all JavaScript commands in strict mode or default (sloppy) mode.
* Possible values are:
* - `repl.REPL_MODE_SLOPPY` - evaluates expressions in sloppy mode.
* - `repl.REPL_MODE_STRICT` - evaluates expressions in strict mode. This is equivalent to
* prefacing every repl statement with `'use strict'`.
*/
readonly replMode: typeof REPL_MODE_SLOPPY | typeof REPL_MODE_STRICT;
/**
* NOTE: According to the documentation:
*
* > Instances of `repl.REPLServer` are created using the `repl.start()` method and
* > _should not_ be created directly using the JavaScript `new` keyword.
*
* `REPLServer` cannot be subclassed due to implementation specifics in NodeJS.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_class_replserver
*/
private constructor();
/**
* Used to add new `.`-prefixed commands to the REPL instance. Such commands are invoked
* by typing a `.` followed by the `keyword`.
*
* @param keyword The command keyword (_without_ a leading `.` character).
* @param cmd The function to invoke when the command is processed.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_replserver_definecommand_keyword_cmd
*/
defineCommand(keyword: string, cmd: REPLCommandAction | REPLCommand): void;
/**
* Readies the REPL instance for input from the user, printing the configured `prompt` to a
* new line in the `output` and resuming the `input` to accept new input.
*
* When multi-line input is being entered, an ellipsis is printed rather than the 'prompt'.
*
* This method is primarily intended to be called from within the action function for
* commands registered using the `replServer.defineCommand()` method.
*
* @param preserveCursor When `true`, the cursor placement will not be reset to `0`.
*/
displayPrompt(preserveCursor?: boolean): void;
/**
* Clears any command that has been buffered but not yet executed.
*
* This method is primarily intended to be called from within the action function for
* commands registered using the `replServer.defineCommand()` method.
*
* @since v9.0.0
*/
clearBufferedCommand(): void;
/**
* Initializes a history log file for the REPL instance. When executing the
* Node.js binary and using the command line REPL, a history file is initialized
* by default. However, this is not the case when creating a REPL
* programmatically. Use this method to initialize a history log file when working
* with REPL instances programmatically.
* @param path The path to the history file
*/
setupHistory(path: string, cb: (err: Error | null, repl: this) => void): void;
/**
* events.EventEmitter
* 1. close - inherited from `readline.Interface`
* 2. line - inherited from `readline.Interface`
* 3. pause - inherited from `readline.Interface`
* 4. resume - inherited from `readline.Interface`
* 5. SIGCONT - inherited from `readline.Interface`
* 6. SIGINT - inherited from `readline.Interface`
* 7. SIGTSTP - inherited from `readline.Interface`
* 8. exit
* 9. reset
*/
addListener(event: string, listener: (...args: any[]) => void): this;
addListener(event: "close", listener: () => void): this;
addListener(event: "line", listener: (input: string) => void): this;
addListener(event: "pause", listener: () => void): this;
addListener(event: "resume", listener: () => void): this;
addListener(event: "SIGCONT", listener: () => void): this;
addListener(event: "SIGINT", listener: () => void): this;
addListener(event: "SIGTSTP", listener: () => void): this;
addListener(event: "exit", listener: () => void): this;
addListener(event: "reset", listener: (context: Context) => void): this;
emit(event: string | symbol, ...args: any[]): boolean;
emit(event: "close"): boolean;
emit(event: "line", input: string): boolean;
emit(event: "pause"): boolean;
emit(event: "resume"): boolean;
emit(event: "SIGCONT"): boolean;
emit(event: "SIGINT"): boolean;
emit(event: "SIGTSTP"): boolean;
emit(event: "exit"): boolean;
emit(event: "reset", context: Context): boolean;
on(event: string, listener: (...args: any[]) => void): this;
on(event: "close", listener: () => void): this;
on(event: "line", listener: (input: string) => void): this;
on(event: "pause", listener: () => void): this;
on(event: "resume", listener: () => void): this;
on(event: "SIGCONT", listener: () => void): this;
on(event: "SIGINT", listener: () => void): this;
on(event: "SIGTSTP", listener: () => void): this;
on(event: "exit", listener: () => void): this;
on(event: "reset", listener: (context: Context) => void): this;
once(event: string, listener: (...args: any[]) => void): this;
once(event: "close", listener: () => void): this;
once(event: "line", listener: (input: string) => void): this;
once(event: "pause", listener: () => void): this;
once(event: "resume", listener: () => void): this;
once(event: "SIGCONT", listener: () => void): this;
once(event: "SIGINT", listener: () => void): this;
once(event: "SIGTSTP", listener: () => void): this;
once(event: "exit", listener: () => void): this;
once(event: "reset", listener: (context: Context) => void): this;
prependListener(event: string, listener: (...args: any[]) => void): this;
prependListener(event: "close", listener: () => void): this;
prependListener(event: "line", listener: (input: string) => void): this;
prependListener(event: "pause", listener: () => void): this;
prependListener(event: "resume", listener: () => void): this;
prependListener(event: "SIGCONT", listener: () => void): this;
prependListener(event: "SIGINT", listener: () => void): this;
prependListener(event: "SIGTSTP", listener: () => void): this;
prependListener(event: "exit", listener: () => void): this;
prependListener(event: "reset", listener: (context: Context) => void): this;
prependOnceListener(event: string, listener: (...args: any[]) => void): this;
prependOnceListener(event: "close", listener: () => void): this;
prependOnceListener(event: "line", listener: (input: string) => void): this;
prependOnceListener(event: "pause", listener: () => void): this;
prependOnceListener(event: "resume", listener: () => void): this;
prependOnceListener(event: "SIGCONT", listener: () => void): this;
prependOnceListener(event: "SIGINT", listener: () => void): this;
prependOnceListener(event: "SIGTSTP", listener: () => void): this;
prependOnceListener(event: "exit", listener: () => void): this;
prependOnceListener(event: "reset", listener: (context: Context) => void): this;
}
/**
* A flag passed in the REPL options. Evaluates expressions in sloppy mode.
*/
const REPL_MODE_SLOPPY: symbol; // TODO: unique symbol
/**
* A flag passed in the REPL options. Evaluates expressions in strict mode.
* This is equivalent to prefacing every repl statement with `'use strict'`.
*/
const REPL_MODE_STRICT: symbol; // TODO: unique symbol
/**
* Creates and starts a `repl.REPLServer` instance.
*
* @param options The options for the `REPLServer`. If `options` is a string, then it specifies
* the input prompt.
*/
function start(options?: string | ReplOptions): REPLServer;
/**
* Indicates a recoverable error that a `REPLServer` can use to support multi-line input.
*
* @see https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_recoverable_errors
*/
class Recoverable extends SyntaxError {
err: Error;
constructor(err: Error);
}
}