62 lines
1.8 KiB
TypeScript
62 lines
1.8 KiB
TypeScript
// @strict: true
|
|
|
|
function f<T>(p: Partial<T>, r: Readonly<T>, pr: Partial<Readonly<T>>, rp: Readonly<Partial<T>>) {
|
|
let a1: Partial<T> = p;
|
|
let a2: Partial<T> = r;
|
|
let a3: Partial<T> = pr;
|
|
let a4: Partial<T> = rp;
|
|
let b1: Readonly<T> = p; // Error
|
|
let b2: Readonly<T> = r;
|
|
let b3: Readonly<T> = pr; // Error
|
|
let b4: Readonly<T> = rp; // Error
|
|
let c1: Partial<Readonly<T>> = p;
|
|
let c2: Partial<Readonly<T>> = r;
|
|
let c3: Partial<Readonly<T>> = pr;
|
|
let c4: Partial<Readonly<T>> = rp;
|
|
let d1: Readonly<Partial<T>> = p;
|
|
let d2: Readonly<Partial<T>> = r;
|
|
let d3: Readonly<Partial<T>> = pr;
|
|
let d4: Readonly<Partial<T>> = rp;
|
|
}
|
|
|
|
// Repro from #17682
|
|
|
|
type State = {
|
|
[key: string]: string | boolean | number | null;
|
|
};
|
|
|
|
type Args1<T extends State> = {
|
|
readonly previous: Readonly<Partial<T>>;
|
|
readonly current: Readonly<Partial<T>>;
|
|
};
|
|
|
|
type Args2<T extends State> = {
|
|
readonly previous: Partial<Readonly<T>>;
|
|
readonly current: Partial<Readonly<T>>;
|
|
};
|
|
|
|
function doit<T extends State>() {
|
|
let previous: Partial<T> = Object.create(null);
|
|
let current: Partial<T> = Object.create(null);
|
|
let args1: Args1<T> = { previous, current };
|
|
let args2: Args2<T> = { previous, current };
|
|
}
|
|
|
|
type State2 = { foo: number, bar: string };
|
|
|
|
type Args3 = {
|
|
readonly previous: Readonly<Partial<State2>>;
|
|
readonly current: Readonly<Partial<State2>>;
|
|
};
|
|
|
|
type Args4 = {
|
|
readonly previous: Partial<Readonly<State2>>;
|
|
readonly current: Partial<Readonly<State2>>;
|
|
};
|
|
|
|
function doit2() {
|
|
let previous: Partial<State2> = Object.create(null);
|
|
let current: Partial<State2> = Object.create(null);
|
|
let args1: Args3 = { previous, current };
|
|
let args2: Args4 = { previous, current };
|
|
}
|