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