TypeScript/tests/baselines/reference/augmentedTypeAssignmentCompatIndexSignature.errors.txt
Anders Hejlsberg 0e905be42b
Index signatures for symbols and template literal strings (#44512)
* Switch index signature storage to 'indexInfos: IndexInfo[]' property

* Accept new baselines

* Remove another usage of IndexKind enum

* Update getIndexedAccessType and resolveMappedTypeMembers

* Accept new baselines

* Update grammar checking for index signatures

* Accept new baselines

* Consider all index signatures in mapped types and union types

* Accept new baselines

* Update getIndexType

* Accept new baselines

* Intersect multiple applicable index signatures

* Use getApplicableIndexInfo instead of hardwired string/number handling

* Update index signature relationship checking

* Report type for which index signature is missing

* Report type for which index signature is missing

* Accept new baselines

* Make 'number' index signatures consistently apply to numeric strings

* Accept new baselines

* Update fourslash test

* Revise index constraint checking

* Accept new baselines

* Update error messages

* Accept new baselines

* Update type inference from index signatures

* Update isKnownProperty

* Update contextual typing based on index signatures

* Accept new baselines

* Support union types in index signature declarations

* Accept new baselines

* Check duplicate index signatures / remove redundant template literals from unions with string

* Accept new baselines

* Include key type in diagnostic / check symbol-named properties

* Accept new baselines

* Minor fix

* Add tests

* Accept new baselines

* Add optimized findApplicableIndexInfoForName

* Accept new baselines

* Another place we don't need to obtain literal type for property name

* Accept new baselines

* Don't create literal types that are going to be discarded

* Individual maps for string, number, bigint, and enum literal types

* Remove ineffective optimizations

* Accept new baselines

* Permit intersections as key types in index signatures

* Index expression in element access is template literal context

* Add tests

* Accept new baselines

* Symbol index signatures from object literals with computed symbol properties

* Accept new baselines

* Add more tests

* Accept new baselines

* Implement Go To Definition for all applicable index signatures

* Add fourslash test

* Accept new API baselines
2021-06-21 11:25:42 -07:00

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Plaintext

tests/cases/conformance/types/members/augmentedTypeAssignmentCompatIndexSignature.ts(19,5): error TS2322: Type '() => void' is not assignable to type '{ [n: number]: Bar; }'.
Index signature for type 'number' is missing in type '() => void'.
==== tests/cases/conformance/types/members/augmentedTypeAssignmentCompatIndexSignature.ts (1 errors) ====
interface Foo { a }
interface Bar { b }
interface Object {
[n: number]: Foo;
}
interface Function {
[n: number]: Bar;
}
var o = {};
var f = () => { };
var v1: {
[n: number]: Foo
} = o; // Should be allowed
var v2: {
~~
!!! error TS2322: Type '() => void' is not assignable to type '{ [n: number]: Bar; }'.
!!! error TS2322: Index signature for type 'number' is missing in type '() => void'.
[n: number]: Bar
} = f; // Should be allowed