239
lib/co/co.js
Normal file
239
lib/co/co.js
Normal file
@@ -0,0 +1,239 @@
|
||||
|
||||
/**
|
||||
* slice() reference.
|
||||
*/
|
||||
|
||||
var slice = Array.prototype.slice;
|
||||
|
||||
/**
|
||||
* Expose `co`.
|
||||
*/
|
||||
|
||||
module.exports = co['default'] = co.co = co;
|
||||
|
||||
/**
|
||||
* Wrap the given generator `fn` into a
|
||||
* function that returns a promise.
|
||||
* This is a separate function so that
|
||||
* every `co()` call doesn't create a new,
|
||||
* unnecessary closure.
|
||||
*
|
||||
* @param {GeneratorFunction} fn
|
||||
* @return {Function}
|
||||
* @api public
|
||||
*/
|
||||
|
||||
co.wrap = function (fn) {
|
||||
createPromise.__generatorFunction__ = fn;
|
||||
return createPromise;
|
||||
function createPromise() {
|
||||
return co.call(this, fn.apply(this, arguments));
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Execute the generator function or a generator
|
||||
* and return a promise.
|
||||
*
|
||||
* @param {Function} fn
|
||||
* @return {Promise}
|
||||
* @api public
|
||||
*/
|
||||
|
||||
function co(gen) {
|
||||
var ctx = this;
|
||||
var args = slice.call(arguments, 1);
|
||||
|
||||
// we wrap everything in a promise to avoid promise chaining,
|
||||
// which leads to memory leak errors.
|
||||
// see https://github.com/tj/co/issues/180
|
||||
return new Promise(function(resolve, reject) {
|
||||
if (typeof gen === 'function') gen = gen.apply(ctx, args);
|
||||
if (!gen || typeof gen.next !== 'function') return resolve(gen);
|
||||
|
||||
onFulfilled();
|
||||
|
||||
/**
|
||||
* @param {Mixed} res
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function onFulfilled(res) {
|
||||
var ret;
|
||||
try {
|
||||
ret = gen.next(res);
|
||||
} catch (e) {
|
||||
return reject(e);
|
||||
}
|
||||
next(ret);
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Error} err
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function onRejected(err) {
|
||||
var ret;
|
||||
try {
|
||||
ret = gen.throw(err);
|
||||
} catch (e) {
|
||||
return reject(e);
|
||||
}
|
||||
next(ret);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the next value in the generator,
|
||||
* return a promise.
|
||||
*
|
||||
* @param {Object} ret
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function next(ret) {
|
||||
if (ret.done) return resolve(ret.value);
|
||||
var value = toPromise.call(ctx, ret.value);
|
||||
if (value && isPromise(value)) return value.then(onFulfilled, onRejected);
|
||||
return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, '
|
||||
+ 'but the following object was passed: "' + String(ret.value) + '"'));
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a `yield`ed value into a promise.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function toPromise(obj) {
|
||||
if (!obj) return obj;
|
||||
if (isPromise(obj)) return obj;
|
||||
if (isGeneratorFunction(obj) || isGenerator(obj)) return co.call(this, obj);
|
||||
if ('function' == typeof obj) return thunkToPromise.call(this, obj);
|
||||
if (Array.isArray(obj)) return arrayToPromise.call(this, obj);
|
||||
if (isObject(obj)) return objectToPromise.call(this, obj);
|
||||
return obj;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a thunk to a promise.
|
||||
*
|
||||
* @param {Function}
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function thunkToPromise(fn) {
|
||||
var ctx = this;
|
||||
return new Promise(function (resolve, reject) {
|
||||
fn.call(ctx, function (err, res) {
|
||||
if (err) return reject(err);
|
||||
if (arguments.length > 2) res = slice.call(arguments, 1);
|
||||
resolve(res);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert an array of "yieldables" to a promise.
|
||||
* Uses `Promise.all()` internally.
|
||||
*
|
||||
* @param {Array} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function arrayToPromise(obj) {
|
||||
return Promise.all(obj.map(toPromise, this));
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert an object of "yieldables" to a promise.
|
||||
* Uses `Promise.all()` internally.
|
||||
*
|
||||
* @param {Object} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function objectToPromise(obj){
|
||||
var results = new obj.constructor();
|
||||
var keys = Object.keys(obj);
|
||||
var promises = [];
|
||||
for (var i = 0; i < keys.length; i++) {
|
||||
var key = keys[i];
|
||||
var promise = toPromise.call(this, obj[key]);
|
||||
if (promise && isPromise(promise)) defer(promise, key);
|
||||
else results[key] = obj[key];
|
||||
}
|
||||
return Promise.all(promises).then(function () {
|
||||
return results;
|
||||
});
|
||||
|
||||
function defer(promise, key) {
|
||||
// predefine the key in the result
|
||||
results[key] = undefined;
|
||||
promises.push(promise.then(function (res) {
|
||||
results[key] = res;
|
||||
}));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a promise.
|
||||
*
|
||||
* @param {Object} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isPromise(obj) {
|
||||
return 'function' == typeof obj.then;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a generator.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isGenerator(obj) {
|
||||
return 'function' == typeof obj.next && 'function' == typeof obj.throw;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a generator function.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isGeneratorFunction(obj) {
|
||||
var constructor = obj.constructor;
|
||||
if (!constructor) return false;
|
||||
if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
|
||||
return isGenerator(constructor.prototype);
|
||||
}
|
||||
|
||||
/**
|
||||
* Check for plain object.
|
||||
*
|
||||
* @param {Mixed} val
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isObject(val) {
|
||||
return Object == val.constructor;
|
||||
}
|
||||
4
lib/co/index.d.ts
vendored
Normal file
4
lib/co/index.d.ts
vendored
Normal file
@@ -0,0 +1,4 @@
|
||||
|
||||
declare function co(g: () => Generator<any, void, undefined>): any;
|
||||
|
||||
export = co;
|
||||
240
lib/co/index.js
240
lib/co/index.js
@@ -1,239 +1 @@
|
||||
|
||||
/**
|
||||
* slice() reference.
|
||||
*/
|
||||
|
||||
var slice = Array.prototype.slice;
|
||||
|
||||
/**
|
||||
* Expose `co`.
|
||||
*/
|
||||
|
||||
module.exports = co['default'] = co.co = co;
|
||||
|
||||
/**
|
||||
* Wrap the given generator `fn` into a
|
||||
* function that returns a promise.
|
||||
* This is a separate function so that
|
||||
* every `co()` call doesn't create a new,
|
||||
* unnecessary closure.
|
||||
*
|
||||
* @param {GeneratorFunction} fn
|
||||
* @return {Function}
|
||||
* @api public
|
||||
*/
|
||||
|
||||
co.wrap = function (fn) {
|
||||
createPromise.__generatorFunction__ = fn;
|
||||
return createPromise;
|
||||
function createPromise() {
|
||||
return co.call(this, fn.apply(this, arguments));
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Execute the generator function or a generator
|
||||
* and return a promise.
|
||||
*
|
||||
* @param {Function} fn
|
||||
* @return {Promise}
|
||||
* @api public
|
||||
*/
|
||||
|
||||
function co(gen) {
|
||||
var ctx = this;
|
||||
var args = slice.call(arguments, 1);
|
||||
|
||||
// we wrap everything in a promise to avoid promise chaining,
|
||||
// which leads to memory leak errors.
|
||||
// see https://github.com/tj/co/issues/180
|
||||
return new Promise(function(resolve, reject) {
|
||||
if (typeof gen === 'function') gen = gen.apply(ctx, args);
|
||||
if (!gen || typeof gen.next !== 'function') return resolve(gen);
|
||||
|
||||
onFulfilled();
|
||||
|
||||
/**
|
||||
* @param {Mixed} res
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function onFulfilled(res) {
|
||||
var ret;
|
||||
try {
|
||||
ret = gen.next(res);
|
||||
} catch (e) {
|
||||
return reject(e);
|
||||
}
|
||||
next(ret);
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {Error} err
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function onRejected(err) {
|
||||
var ret;
|
||||
try {
|
||||
ret = gen.throw(err);
|
||||
} catch (e) {
|
||||
return reject(e);
|
||||
}
|
||||
next(ret);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the next value in the generator,
|
||||
* return a promise.
|
||||
*
|
||||
* @param {Object} ret
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function next(ret) {
|
||||
if (ret.done) return resolve(ret.value);
|
||||
var value = toPromise.call(ctx, ret.value);
|
||||
if (value && isPromise(value)) return value.then(onFulfilled, onRejected);
|
||||
return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, '
|
||||
+ 'but the following object was passed: "' + String(ret.value) + '"'));
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a `yield`ed value into a promise.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function toPromise(obj) {
|
||||
if (!obj) return obj;
|
||||
if (isPromise(obj)) return obj;
|
||||
if (isGeneratorFunction(obj) || isGenerator(obj)) return co.call(this, obj);
|
||||
if ('function' == typeof obj) return thunkToPromise.call(this, obj);
|
||||
if (Array.isArray(obj)) return arrayToPromise.call(this, obj);
|
||||
if (isObject(obj)) return objectToPromise.call(this, obj);
|
||||
return obj;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a thunk to a promise.
|
||||
*
|
||||
* @param {Function}
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function thunkToPromise(fn) {
|
||||
var ctx = this;
|
||||
return new Promise(function (resolve, reject) {
|
||||
fn.call(ctx, function (err, res) {
|
||||
if (err) return reject(err);
|
||||
if (arguments.length > 2) res = slice.call(arguments, 1);
|
||||
resolve(res);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert an array of "yieldables" to a promise.
|
||||
* Uses `Promise.all()` internally.
|
||||
*
|
||||
* @param {Array} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function arrayToPromise(obj) {
|
||||
return Promise.all(obj.map(toPromise, this));
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert an object of "yieldables" to a promise.
|
||||
* Uses `Promise.all()` internally.
|
||||
*
|
||||
* @param {Object} obj
|
||||
* @return {Promise}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function objectToPromise(obj){
|
||||
var results = new obj.constructor();
|
||||
var keys = Object.keys(obj);
|
||||
var promises = [];
|
||||
for (var i = 0; i < keys.length; i++) {
|
||||
var key = keys[i];
|
||||
var promise = toPromise.call(this, obj[key]);
|
||||
if (promise && isPromise(promise)) defer(promise, key);
|
||||
else results[key] = obj[key];
|
||||
}
|
||||
return Promise.all(promises).then(function () {
|
||||
return results;
|
||||
});
|
||||
|
||||
function defer(promise, key) {
|
||||
// predefine the key in the result
|
||||
results[key] = undefined;
|
||||
promises.push(promise.then(function (res) {
|
||||
results[key] = res;
|
||||
}));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a promise.
|
||||
*
|
||||
* @param {Object} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isPromise(obj) {
|
||||
return 'function' == typeof obj.then;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a generator.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isGenerator(obj) {
|
||||
return 'function' == typeof obj.next && 'function' == typeof obj.throw;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if `obj` is a generator function.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isGeneratorFunction(obj) {
|
||||
var constructor = obj.constructor;
|
||||
if (!constructor) return false;
|
||||
if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
|
||||
return isGenerator(constructor.prototype);
|
||||
}
|
||||
|
||||
/**
|
||||
* Check for plain object.
|
||||
*
|
||||
* @param {Mixed} val
|
||||
* @return {Boolean}
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function isObject(val) {
|
||||
return Object == val.constructor;
|
||||
}
|
||||
module.exports = require('./co')
|
||||
|
||||
@@ -3,7 +3,8 @@ import { Terminal } from '@xterm/xterm';
|
||||
import { FitAddon } from '@xterm/addon-fit';
|
||||
import { SerializeAddon } from '@xterm/addon-serialize';
|
||||
import JSZM from "../../lib/zork";
|
||||
var co = require("../../lib/co/index.js");
|
||||
// var co = require("../../lib/co/index.js");
|
||||
import co from "../../lib/co";
|
||||
|
||||
export class DebugWidget implements FarpatchWidget {
|
||||
name: string;
|
||||
@@ -79,15 +80,15 @@ export class DebugWidget implements FarpatchWidget {
|
||||
var debugWidget = this;
|
||||
fetch("/zork1.z3").then((response) => {
|
||||
response.arrayBuffer().then((buffer) => {
|
||||
this.zork = co.co(function* () {
|
||||
this.zork = co(function* () {
|
||||
var zork = new JSZM(new Uint8Array(buffer));
|
||||
zork.print = function* (str: string) {
|
||||
str = str.replace("\n", "\r\n");
|
||||
zorkTerminal.write(str);
|
||||
};
|
||||
zork.read = function* (maxlen: number): Generator {
|
||||
zork.read = function* (_maxlen: number): Generator {
|
||||
// console.log("Zork: read " + maxlen);
|
||||
var val = yield new Promise((resolve, reject) => {
|
||||
var val = yield new Promise((resolve, _reject) => {
|
||||
debugWidget.zorkCallback = resolve;
|
||||
});
|
||||
return val;
|
||||
|
||||
Reference in New Issue
Block a user