TypeScript/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.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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tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts(16,5): error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts(25,5): error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts(34,5): error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts(43,5): error TS2322: Type 'number' is not assignable to type 'A'.
==== tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts (4 errors) ====
// String indexer providing a constraint of a user defined type
class A {
foo(): string { return ''; }
}
class B extends A {
bar(): string { return ''; }
}
class Foo {
[x: number]: A;
1.0: A; // ok
2.0: B; // ok
"2.5": B // ok
3.0: number; // error
~~~
!!! error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
"4.0": string; // error
}
interface Foo2 {
[x: number]: A;
1.0: A; // ok
2.0: B; // ok
"2.5": B // ok
3.0: number; // error
~~~
!!! error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
"4.0": string; // error
}
var a: {
[x: number]: A;
1.0: A; // ok
2.0: B; // ok
"2.5": B // ok
3.0: number; // error
~~~
!!! error TS2411: Property '3.0' of type 'number' is not assignable to 'number' index type 'A'.
"4.0": string; // error
};
// error
var b: { [x: number]: A } = {
1.0: new A(),
2.0: new B(),
"2.5": new B(),
3.0: 1,
~~~
!!! error TS2322: Type 'number' is not assignable to type 'A'.
!!! related TS6501 tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts:39:10: The expected type comes from this index signature.
"4.0": ''
}