innerFrom.js
9.46 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __asyncValues = (this && this.__asyncValues) || function (o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.fromReadableStreamLike = exports.fromAsyncIterable = exports.fromIterable = exports.fromPromise = exports.fromArrayLike = exports.fromInteropObservable = exports.innerFrom = void 0;
var isArrayLike_1 = require("../util/isArrayLike");
var isPromise_1 = require("../util/isPromise");
var Observable_1 = require("../Observable");
var isInteropObservable_1 = require("../util/isInteropObservable");
var isAsyncIterable_1 = require("../util/isAsyncIterable");
var throwUnobservableError_1 = require("../util/throwUnobservableError");
var isIterable_1 = require("../util/isIterable");
var isReadableStreamLike_1 = require("../util/isReadableStreamLike");
var isFunction_1 = require("../util/isFunction");
var reportUnhandledError_1 = require("../util/reportUnhandledError");
var observable_1 = require("../symbol/observable");
function innerFrom(input) {
if (input instanceof Observable_1.Observable) {
return input;
}
if (input != null) {
if (isInteropObservable_1.isInteropObservable(input)) {
return fromInteropObservable(input);
}
if (isArrayLike_1.isArrayLike(input)) {
return fromArrayLike(input);
}
if (isPromise_1.isPromise(input)) {
return fromPromise(input);
}
if (isAsyncIterable_1.isAsyncIterable(input)) {
return fromAsyncIterable(input);
}
if (isIterable_1.isIterable(input)) {
return fromIterable(input);
}
if (isReadableStreamLike_1.isReadableStreamLike(input)) {
return fromReadableStreamLike(input);
}
}
throw throwUnobservableError_1.createInvalidObservableTypeError(input);
}
exports.innerFrom = innerFrom;
function fromInteropObservable(obj) {
return new Observable_1.Observable(function (subscriber) {
var obs = obj[observable_1.observable]();
if (isFunction_1.isFunction(obs.subscribe)) {
return obs.subscribe(subscriber);
}
throw new TypeError('Provided object does not correctly implement Symbol.observable');
});
}
exports.fromInteropObservable = fromInteropObservable;
function fromArrayLike(array) {
return new Observable_1.Observable(function (subscriber) {
for (var i = 0; i < array.length && !subscriber.closed; i++) {
subscriber.next(array[i]);
}
subscriber.complete();
});
}
exports.fromArrayLike = fromArrayLike;
function fromPromise(promise) {
return new Observable_1.Observable(function (subscriber) {
promise
.then(function (value) {
if (!subscriber.closed) {
subscriber.next(value);
subscriber.complete();
}
}, function (err) { return subscriber.error(err); })
.then(null, reportUnhandledError_1.reportUnhandledError);
});
}
exports.fromPromise = fromPromise;
function fromIterable(iterable) {
return new Observable_1.Observable(function (subscriber) {
var e_1, _a;
try {
for (var iterable_1 = __values(iterable), iterable_1_1 = iterable_1.next(); !iterable_1_1.done; iterable_1_1 = iterable_1.next()) {
var value = iterable_1_1.value;
subscriber.next(value);
if (subscriber.closed) {
return;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (iterable_1_1 && !iterable_1_1.done && (_a = iterable_1.return)) _a.call(iterable_1);
}
finally { if (e_1) throw e_1.error; }
}
subscriber.complete();
});
}
exports.fromIterable = fromIterable;
function fromAsyncIterable(asyncIterable) {
return new Observable_1.Observable(function (subscriber) {
process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });
});
}
exports.fromAsyncIterable = fromAsyncIterable;
function fromReadableStreamLike(readableStream) {
return fromAsyncIterable(isReadableStreamLike_1.readableStreamLikeToAsyncGenerator(readableStream));
}
exports.fromReadableStreamLike = fromReadableStreamLike;
function process(asyncIterable, subscriber) {
var asyncIterable_1, asyncIterable_1_1;
var e_2, _a;
return __awaiter(this, void 0, void 0, function () {
var value, e_2_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 5, 6, 11]);
asyncIterable_1 = __asyncValues(asyncIterable);
_b.label = 1;
case 1: return [4, asyncIterable_1.next()];
case 2:
if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];
value = asyncIterable_1_1.value;
subscriber.next(value);
if (subscriber.closed) {
return [2];
}
_b.label = 3;
case 3: return [3, 1];
case 4: return [3, 11];
case 5:
e_2_1 = _b.sent();
e_2 = { error: e_2_1 };
return [3, 11];
case 6:
_b.trys.push([6, , 9, 10]);
if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];
return [4, _a.call(asyncIterable_1)];
case 7:
_b.sent();
_b.label = 8;
case 8: return [3, 10];
case 9:
if (e_2) throw e_2.error;
return [7];
case 10: return [7];
case 11:
subscriber.complete();
return [2];
}
});
});
}
//# sourceMappingURL=innerFrom.js.map