13 lines
228 B
TypeScript
13 lines
228 B
TypeScript
|
// @strict: true
|
||
|
|
// @target: es6
|
||
|
|
const FOO_SYMBOL = Symbol('Foo');
|
||
|
|
|
||
|
|
declare global {
|
||
|
|
interface Promise<T> {
|
||
|
|
[FOO_SYMBOL]?: number;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export function foo<T>(p: Promise<T>) {
|
||
|
|
p[FOO_SYMBOL] = 3;
|
||
|
|
}
|