/
types.ts
35 lines (33 loc) · 1.2 KB
/
types.ts
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/*
* Copyright The OpenTelemetry Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
export type Func<T> = (...args: unknown[]) => T;
/**
* Minimum requirements that the object needs to have so that it can bind to the events instead of function
* this is "addEventListener" and "removeEventListener" - see {@link isListenerObject}
*/
export interface TargetWithEvents {
addEventListener?(
event: string,
listener: (...args: unknown[]) => void,
opts?: { once: boolean }
): unknown;
removeEventListener?(
event: string,
listener: (...args: unknown[]) => void,
opts?: { once: boolean }
): unknown;
__ot_listeners?: { [name: string]: WeakMap<Func<void>, Func<void>> };
}