feat(compat): combatability mode for combineLatest

compat/operators/combineLatest.ts

@@ -0,0 +1,41 @@
+
+import { isArray } from 'rxjs/util/isArray';
+import { subscribeToResult } from 'rxjs/util/subscribeToResult';
+import { Observable, ObservableInput, Operator, OperatorFunction, from } from 'rxjs';
+import { CombineLatestOperator } from 'rxjs/internal/observable/combineLatest';
+
+const none = {};
+
+/* tslint:disable:max-line-length */
+export function combineLatest<T, R>(project: (v1: T) => R): OperatorFunction<T, R>;
+export function combineLatest<T, T2, R>(v2: ObservableInput<T2>, project: (v1: T, v2: T2) => R): OperatorFunction<T, R>;
+export function combineLatest<T, T2, T3, R>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, project: (v1: T, v2: T2, v3: T3) => R): OperatorFunction<T, R>;
+export function combineLatest<T, T2, T3, T4, R>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, project: (v1: T, v2: T2, v3: T3, v4: T4) => R): OperatorFunction<T, R>;
+export function combineLatest<T, T2, T3, T4, T5, R>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, project: (v1: T, v2: T2, v3: T3, v4: T4, v5: T5) => R): OperatorFunction<T, R>;
+export function combineLatest<T, T2, T3, T4, T5, T6, R>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>, project: (v1: T, v2: T2, v3: T3, v4: T4, v5: T5, v6: T6) => R): OperatorFunction<T, R> ;
+export function combineLatest<T, T2>(v2: ObservableInput<T2>): OperatorFunction<T, [T, T2]>;
+export function combineLatest<T, T2, T3>(v2: ObservableInput<T2>, v3: ObservableInput<T3>): OperatorFunction<T, [T, T2, T3]>;
+export function combineLatest<T, T2, T3, T4>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>): OperatorFunction<T, [T, T2, T3, T4]>;
+export function combineLatest<T, T2, T3, T4, T5>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>): OperatorFunction<T, [T, T2, T3, T4, T5]>;
+export function combineLatest<T, T2, T3, T4, T5, T6>(v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>): OperatorFunction<T, [T, T2, T3, T4, T5, T6]> ;
+export function combineLatest<T, R>(...observables: Array<ObservableInput<T> | ((...values: Array<T>) => R)>): OperatorFunction<T, R>;
+export function combineLatest<T, R>(array: ObservableInput<T>[]): OperatorFunction<T, Array<T>>;
+export function combineLatest<T, TOther, R>(array: ObservableInput<TOther>[], project: (v1: T, ...values: Array<TOther>) => R): OperatorFunction<T, R>;
+/* tslint:enable:max-line-length */
+
+export function combineLatest<T, R>(...observables: Array<ObservableInput<any> |
+                                                    Array<ObservableInput<any>> |
+                                                    ((...values: Array<any>) => R)>): OperatorFunction<T, R> {
+  let project: (...values: Array<any>) => R = null;
+  if (typeof observables[observables.length - 1] === 'function') {
+    project = <(...values: Array<any>) => R>observables.pop();
+  }
+
+  // if the first and only other argument besides the resultSelector is an array
+  // assume it's been called with `combineLatest([obs1, obs2, obs3], project)`
+  if (observables.length === 1 && isArray(observables[0])) {
+    observables = (<any>observables[0]).slice();
+  }
+
+  return (source: Observable<T>) => source.lift.call(from([source, ...observables]), new CombineLatestOperator(project));
+}

legacy-reexport/operators/combineLatest.ts

@@ -0,0 +1 @@
+export * from 'rxjs-compat/operators/combineLatest';