329 lines
19 KiB
Plaintext
329 lines
19 KiB
Plaintext
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(10,18): error TS2304: Cannot find name 'K0'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(20,18): error TS2339: Property 'foo' does not exist on type 'Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(21,18): error TS2339: Property 'foo' does not exist on type 'Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(22,18): error TS2538: Type 'any' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(23,18): error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(24,18): error TS2537: Type 'Shape' has no matching index signature for type 'number'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(25,18): error TS2538: Type 'boolean' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(26,18): error TS2538: Type 'void' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(27,18): error TS2538: Type 'undefined' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(28,18): error TS2538: Type '{ x: string; }' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(29,18): error TS2537: Type 'Shape' has no matching index signature for type 'number'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(29,18): error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(31,18): error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(31,18): error TS2538: Type 'false' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(31,18): error TS2538: Type 'true' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(35,21): error TS2537: Type 'string[]' has no matching index signature for type 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(36,21): error TS2538: Type 'boolean' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(41,31): error TS2538: Type 'boolean' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(46,16): error TS2538: Type 'boolean' cannot be used as an index type.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(63,33): error TS2345: Argument of type '"size"' is not assignable to parameter of type 'keyof Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(64,33): error TS2345: Argument of type '"name" | "size"' is not assignable to parameter of type 'keyof Shape'.
|
|
Type '"size"' is not assignable to type 'keyof Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(66,24): error TS2345: Argument of type '"size"' is not assignable to parameter of type 'keyof Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(67,24): error TS2345: Argument of type '"name" | "size"' is not assignable to parameter of type 'keyof Shape'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(73,5): error TS2536: Type 'keyof T | keyof U' cannot be used to index type 'T | U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(74,5): error TS2536: Type 'keyof T | keyof U' cannot be used to index type 'T | U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(82,5): error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'string | number | symbol' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'string' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'string' is not assignable to type 'keyof T'.
|
|
Type 'keyof T' is not assignable to type 'keyof U'.
|
|
Type 'string | number | symbol' is not assignable to type 'keyof U'.
|
|
Type 'string' is not assignable to type 'keyof U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(83,5): error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(86,5): error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(87,5): error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(103,9): error TS2322: Type 'Extract<keyof T, string>' is not assignable to type 'K'.
|
|
'Extract<keyof T, string>' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
Type 'string & keyof T' is not assignable to type 'K'.
|
|
'string & keyof T' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
Type 'string' is not assignable to type 'K'.
|
|
'string' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(105,9): error TS2322: Type 'T[Extract<keyof T, string>]' is not assignable to type 'T[K]'.
|
|
Type 'Extract<keyof T, string>' is not assignable to type 'K'.
|
|
'Extract<keyof T, string>' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(108,5): error TS2322: Type 'T[K]' is not assignable to type 'U[K]'.
|
|
Type 'T' is not assignable to type 'U'.
|
|
'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(111,5): error TS2322: Type 'T[J]' is not assignable to type 'U[J]'.
|
|
Type 'T' is not assignable to type 'U'.
|
|
'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(114,5): error TS2322: Type 'T[K]' is not assignable to type 'T[J]'.
|
|
Type 'K' is not assignable to type 'J'.
|
|
'K' is assignable to the constraint of type 'J', but 'J' could be instantiated with a different subtype of constraint 'string'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(117,5): error TS2322: Type 'T[K]' is not assignable to type 'U[J]'.
|
|
Type 'T' is not assignable to type 'U'.
|
|
'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(122,5): error TS2322: Type 'number' is not assignable to type 'keyof T'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(123,5): error TS2322: Type 'string' is not assignable to type 'keyof T'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(140,5): error TS2322: Type 'number' is not assignable to type 'T[K]'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(141,5): error TS2322: Type 'string' is not assignable to type 'T[K]'.
|
|
tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts(142,5): error TS2322: Type 'number[]' is not assignable to type 'T[K]'.
|
|
|
|
|
|
==== tests/cases/conformance/types/keyof/keyofAndIndexedAccessErrors.ts (40 errors) ====
|
|
class Shape {
|
|
name: string;
|
|
width: number;
|
|
height: number;
|
|
visible: boolean;
|
|
}
|
|
|
|
type Dictionary<T> = { [x: string]: T };
|
|
|
|
type T00 = keyof K0; // Error
|
|
~~
|
|
!!! error TS2304: Cannot find name 'K0'.
|
|
|
|
type T01 = keyof Object;
|
|
type T02 = keyof keyof Object;
|
|
type T03 = keyof keyof keyof Object;
|
|
type T04 = keyof keyof keyof keyof Object;
|
|
type T05 = keyof keyof keyof keyof keyof Object;
|
|
type T06 = keyof keyof keyof keyof keyof keyof Object;
|
|
|
|
type T10 = Shape["name"];
|
|
type T11 = Shape["foo"]; // Error
|
|
~~~~~
|
|
!!! error TS2339: Property 'foo' does not exist on type 'Shape'.
|
|
type T12 = Shape["name" | "foo"]; // Error
|
|
~~~~~~~~~~~~~~
|
|
!!! error TS2339: Property 'foo' does not exist on type 'Shape'.
|
|
type T13 = Shape[any]; // Error
|
|
~~~
|
|
!!! error TS2538: Type 'any' cannot be used as an index type.
|
|
type T14 = Shape[string]; // Error
|
|
~~~~~~
|
|
!!! error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
type T15 = Shape[number]; // Error
|
|
~~~~~~
|
|
!!! error TS2537: Type 'Shape' has no matching index signature for type 'number'.
|
|
type T16 = Shape[boolean]; // Error
|
|
~~~~~~~
|
|
!!! error TS2538: Type 'boolean' cannot be used as an index type.
|
|
type T17 = Shape[void]; // Error
|
|
~~~~
|
|
!!! error TS2538: Type 'void' cannot be used as an index type.
|
|
type T18 = Shape[undefined]; // Error
|
|
~~~~~~~~~
|
|
!!! error TS2538: Type 'undefined' cannot be used as an index type.
|
|
type T19 = Shape[{ x: string }]; // Error
|
|
~~~~~~~~~~~~~
|
|
!!! error TS2538: Type '{ x: string; }' cannot be used as an index type.
|
|
type T20 = Shape[string | number]; // Error
|
|
~~~~~~~~~~~~~~~
|
|
!!! error TS2537: Type 'Shape' has no matching index signature for type 'number'.
|
|
~~~~~~~~~~~~~~~
|
|
!!! error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
type T21 = Shape[string & number];
|
|
type T22 = Shape[string | boolean]; // Error
|
|
~~~~~~~~~~~~~~~~
|
|
!!! error TS2537: Type 'Shape' has no matching index signature for type 'string'.
|
|
~~~~~~~~~~~~~~~~
|
|
!!! error TS2538: Type 'false' cannot be used as an index type.
|
|
~~~~~~~~~~~~~~~~
|
|
!!! error TS2538: Type 'true' cannot be used as an index type.
|
|
|
|
type T30 = string[]["length"];
|
|
type T31 = string[][number];
|
|
type T32 = string[][string]; // Error
|
|
~~~~~~
|
|
!!! error TS2537: Type 'string[]' has no matching index signature for type 'string'.
|
|
type T33 = string[][boolean]; // Error
|
|
~~~~~~~
|
|
!!! error TS2538: Type 'boolean' cannot be used as an index type.
|
|
|
|
type T40 = Dictionary<string>[any];
|
|
type T41 = Dictionary<string>[number];
|
|
type T42 = Dictionary<string>[string];
|
|
type T43 = Dictionary<string>[boolean]; // Error
|
|
~~~~~~~
|
|
!!! error TS2538: Type 'boolean' cannot be used as an index type.
|
|
|
|
type T50 = any[any];
|
|
type T51 = any[number];
|
|
type T52 = any[string];
|
|
type T53 = any[boolean]; // Error
|
|
~~~~~~~
|
|
!!! error TS2538: Type 'boolean' cannot be used as an index type.
|
|
|
|
type T60 = {}["toString"];
|
|
type T61 = []["toString"];
|
|
|
|
declare let cond: boolean;
|
|
|
|
function getProperty<T, K extends keyof T>(obj: T, key: K) {
|
|
return obj[key];
|
|
}
|
|
|
|
function setProperty<T, K extends keyof T>(obj: T, key: K, value: T[K]) {
|
|
obj[key] = value;
|
|
}
|
|
|
|
function f10(shape: Shape) {
|
|
let x1 = getProperty(shape, "name");
|
|
let x2 = getProperty(shape, "size"); // Error
|
|
~~~~~~
|
|
!!! error TS2345: Argument of type '"size"' is not assignable to parameter of type 'keyof Shape'.
|
|
let x3 = getProperty(shape, cond ? "name" : "size"); // Error
|
|
~~~~~~~~~~~~~~~~~~~~~~
|
|
!!! error TS2345: Argument of type '"name" | "size"' is not assignable to parameter of type 'keyof Shape'.
|
|
!!! error TS2345: Type '"size"' is not assignable to type 'keyof Shape'.
|
|
setProperty(shape, "name", "rectangle");
|
|
setProperty(shape, "size", 10); // Error
|
|
~~~~~~
|
|
!!! error TS2345: Argument of type '"size"' is not assignable to parameter of type 'keyof Shape'.
|
|
setProperty(shape, cond ? "name" : "size", 10); // Error
|
|
~~~~~~~~~~~~~~~~~~~~~~
|
|
!!! error TS2345: Argument of type '"name" | "size"' is not assignable to parameter of type 'keyof Shape'.
|
|
}
|
|
|
|
function f20<T, U>(x: T | U, y: T & U, k1: keyof (T | U), k2: keyof T & keyof U, k3: keyof (T & U), k4: keyof T | keyof U) {
|
|
x[k1];
|
|
x[k2];
|
|
x[k3]; // Error
|
|
~~~~~
|
|
!!! error TS2536: Type 'keyof T | keyof U' cannot be used to index type 'T | U'.
|
|
x[k4]; // Error
|
|
~~~~~
|
|
!!! error TS2536: Type 'keyof T | keyof U' cannot be used to index type 'T | U'.
|
|
|
|
y[k1];
|
|
y[k2];
|
|
y[k3];
|
|
y[k4];
|
|
|
|
k1 = k2;
|
|
k1 = k3; // Error
|
|
~~
|
|
!!! error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'string' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'string' is not assignable to type 'keyof T'.
|
|
!!! error TS2322: Type 'keyof T' is not assignable to type 'keyof U'.
|
|
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'keyof U'.
|
|
!!! error TS2322: Type 'string' is not assignable to type 'keyof U'.
|
|
k1 = k4; // Error
|
|
~~
|
|
!!! error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
|
|
k2 = k1;
|
|
k2 = k3; // Error
|
|
~~
|
|
!!! error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
k2 = k4; // Error
|
|
~~
|
|
!!! error TS2322: Type 'keyof T | keyof U' is not assignable to type 'keyof T & keyof U'.
|
|
!!! error TS2322: Type 'keyof T' is not assignable to type 'keyof T & keyof U'.
|
|
|
|
k3 = k1;
|
|
k3 = k2;
|
|
k3 = k4;
|
|
|
|
k4 = k1;
|
|
k4 = k2;
|
|
k4 = k3;
|
|
}
|
|
|
|
// Repro from #17166
|
|
function f3<T, K extends Extract<keyof T, string>, U extends T, J extends K>(
|
|
t: T, k: K, tk: T[K], u: U, j: J, uk: U[K], tj: T[J], uj: U[J]): void {
|
|
for (let key in t) {
|
|
key = k // ok, K ==> keyof T
|
|
k = key // error, keyof T =/=> K
|
|
~
|
|
!!! error TS2322: Type 'Extract<keyof T, string>' is not assignable to type 'K'.
|
|
!!! error TS2322: 'Extract<keyof T, string>' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
!!! error TS2322: Type 'string & keyof T' is not assignable to type 'K'.
|
|
!!! error TS2322: 'string & keyof T' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
!!! error TS2322: Type 'string' is not assignable to type 'K'.
|
|
!!! error TS2322: 'string' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
t[key] = tk; // ok, T[K] ==> T[keyof T]
|
|
tk = t[key]; // error, T[keyof T] =/=> T[K]
|
|
~~
|
|
!!! error TS2322: Type 'T[Extract<keyof T, string>]' is not assignable to type 'T[K]'.
|
|
!!! error TS2322: Type 'Extract<keyof T, string>' is not assignable to type 'K'.
|
|
!!! error TS2322: 'Extract<keyof T, string>' is assignable to the constraint of type 'K', but 'K' could be instantiated with a different subtype of constraint 'string'.
|
|
}
|
|
tk = uk;
|
|
uk = tk; // error
|
|
~~
|
|
!!! error TS2322: Type 'T[K]' is not assignable to type 'U[K]'.
|
|
!!! error TS2322: Type 'T' is not assignable to type 'U'.
|
|
!!! error TS2322: 'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
|
|
tj = uj;
|
|
uj = tj; // error
|
|
~~
|
|
!!! error TS2322: Type 'T[J]' is not assignable to type 'U[J]'.
|
|
!!! error TS2322: Type 'T' is not assignable to type 'U'.
|
|
!!! error TS2322: 'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
|
|
tk = tj;
|
|
tj = tk; // error
|
|
~~
|
|
!!! error TS2322: Type 'T[K]' is not assignable to type 'T[J]'.
|
|
!!! error TS2322: Type 'K' is not assignable to type 'J'.
|
|
!!! error TS2322: 'K' is assignable to the constraint of type 'J', but 'J' could be instantiated with a different subtype of constraint 'string'.
|
|
|
|
tk = uj;
|
|
uj = tk; // error
|
|
~~
|
|
!!! error TS2322: Type 'T[K]' is not assignable to type 'U[J]'.
|
|
!!! error TS2322: Type 'T' is not assignable to type 'U'.
|
|
!!! error TS2322: 'U' could be instantiated with an arbitrary type which could be unrelated to 'T'.
|
|
}
|
|
|
|
// The constraint of 'keyof T' is 'keyof T'
|
|
function f4<T extends { [K in keyof T]: string }>(k: keyof T) {
|
|
k = 42; // error
|
|
~
|
|
!!! error TS2322: Type 'number' is not assignable to type 'keyof T'.
|
|
k = "hello"; // error
|
|
~
|
|
!!! error TS2322: Type 'string' is not assignable to type 'keyof T'.
|
|
}
|
|
|
|
// Repro from #27470
|
|
|
|
type UndefinedKeys<T extends Record<string, any>> = {
|
|
[K in keyof T]: undefined extends T[K] ? K : never
|
|
};
|
|
|
|
type MyType = {a: string, b: string | undefined}
|
|
|
|
type Result1 = UndefinedKeys<MyType>;
|
|
|
|
const a1: Result1['a'] = 'a'; // Error
|
|
const b1: Result1['b'] = 'b';
|
|
|
|
function test1<T extends Record<string, any>, K extends keyof T>(t: T, k: K) {
|
|
t[k] = 42; // Error
|
|
~~~~
|
|
!!! error TS2322: Type 'number' is not assignable to type 'T[K]'.
|
|
t[k] = "hello"; // Error
|
|
~~~~
|
|
!!! error TS2322: Type 'string' is not assignable to type 'T[K]'.
|
|
t[k] = [10, 20]; // Error
|
|
~~~~
|
|
!!! error TS2322: Type 'number[]' is not assignable to type 'T[K]'.
|
|
}
|
|
|
|
// Repro from #28839
|
|
|
|
function f30<T, K extends keyof T>() {
|
|
let x: Partial<Record<keyof T, string>>[K] = "hello";
|
|
}
|
|
|
|
function f31<T, K extends keyof T>() {
|
|
let x: Partial<Partial<Partial<Partial<Partial<Partial<Partial<Record<keyof T, string>>>>>>>>[K] = "hello";
|
|
}
|
|
|