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Simplify return type of Object.fromEntries (#37457)

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PropertyKey is accurate but not usable.

Fixes #31393
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Nathan Shively-Sanders 2020-03-18 14:35:19 -07:00 committed by GitHub
parent 2df421b067
commit 062104d9d5
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2 changed files with 19 additions and 19 deletions
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2
src/lib/es2019.object.d.ts vendored
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@ -5,7 +5,7 @@ interface ObjectConstructor {
* Returns an object created by key-value entries for properties and methods
* @param entries An iterable object that contains key-value entries for properties and methods.
*/
fromEntries<T = any>(entries: Iterable<readonly [PropertyKey, T]>): { [k in PropertyKey]: T };
fromEntries<T = any>(entries: Iterable<readonly [PropertyKey, T]>): { [k: string]: T };
/**
* Returns an object created by key-value entries for properties and methods

36
tests/baselines/reference/objectFromEntries.types
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@ -1,10 +1,10 @@
=== tests/cases/compiler/objectFromEntries.ts ===
const o = Object.fromEntries([['a', 1], ['b', 2], ['c', 3]]);
>o : { [x: string]: number; [x: number]: number; }
>Object.fromEntries([['a', 1], ['b', 2], ['c', 3]]) : { [x: string]: number; [x: number]: number; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>o : { [k: string]: number; }
>Object.fromEntries([['a', 1], ['b', 2], ['c', 3]]) : { [k: string]: number; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object : ObjectConstructor
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>[['a', 1], ['b', 2], ['c', 3]] : [string, number][]
>['a', 1] : [string, number]
>'a' : "a"
@ -17,20 +17,20 @@ const o = Object.fromEntries([['a', 1], ['b', 2], ['c', 3]]);
>3 : 3
const o2 = Object.fromEntries(new URLSearchParams());
>o2 : { [x: string]: string; [x: number]: string; }
>Object.fromEntries(new URLSearchParams()) : { [x: string]: string; [x: number]: string; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>o2 : { [k: string]: string; }
>Object.fromEntries(new URLSearchParams()) : { [k: string]: string; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object : ObjectConstructor
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>new URLSearchParams() : URLSearchParams
>URLSearchParams : { new (init?: string | URLSearchParams | string[][] | Record<string, string>): URLSearchParams; prototype: URLSearchParams; toString(): string; }
const o3 = Object.fromEntries(new Map([[Symbol("key"), "value"]]));
>o3 : { [x: string]: string; [x: number]: string; }
>Object.fromEntries(new Map([[Symbol("key"), "value"]])) : { [x: string]: string; [x: number]: string; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>o3 : { [k: string]: string; }
>Object.fromEntries(new Map([[Symbol("key"), "value"]])) : { [k: string]: string; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object : ObjectConstructor
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>new Map([[Symbol("key"), "value"]]) : Map<symbol, string>
>Map : MapConstructor
>[[Symbol("key"), "value"]] : [symbol, string][]
@ -60,9 +60,9 @@ const frozenArray = Object.freeze([['a', 1], ['b', 2], ['c', 3]]);
const o4 = Object.fromEntries(frozenArray);
>o4 : any
>Object.fromEntries(frozenArray) : any
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object : ObjectConstructor
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>frozenArray : readonly (string | number)[][]
const frozenArray2: readonly [string, number][] = Object.freeze([['a', 1], ['b', 2], ['c', 3]]);
@ -83,10 +83,10 @@ const frozenArray2: readonly [string, number][] = Object.freeze([['a', 1], ['b',
>3 : 3
const o5 = Object.fromEntries(frozenArray2);
>o5 : { [x: string]: number; [x: number]: number; }
>Object.fromEntries(frozenArray2) : { [x: string]: number; [x: number]: number; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>o5 : { [k: string]: number; }
>Object.fromEntries(frozenArray2) : { [k: string]: number; }
>Object.fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>Object : ObjectConstructor
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [x: string]: T; [x: number]: T; }; (entries: Iterable<readonly any[]>): any; }
>fromEntries : { <T = any>(entries: Iterable<readonly [string | number | symbol, T]>): { [k: string]: T; }; (entries: Iterable<readonly any[]>): any; }
>frozenArray2 : readonly [string, number][]