File: numericEnumMappedType.js

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//// [numericEnumMappedType.ts]
// Repro from #31771

enum E1 { ONE, TWO, THREE }
declare enum E2 { ONE, TWO, THREE }

type Bins1 = { [k in E1]?: string; }
type Bins2 = { [k in E2]?: string; }

const b1: Bins1 = {};
const b2: Bins2 = {};

const e1: E1 = E1.ONE;
const e2: E2 = E2.ONE;

b1[1] = "a";
b1[e1] = "b";

b2[1] = "a";
b2[e2] = "b";

// Multiple numeric enum types accrue to the same numeric index signature in a mapped type

declare function val(): number;

enum N1 { A = val(), B = val() }
enum N2 { C = val(), D = val() }

type T1 = { [K in N1 | N2]: K };

// Enum types with string valued members are always literal enum types and therefore
// ONE and TWO below are not computed members but rather just numerically valued members
// with auto-incremented values.

declare enum E { ONE, TWO, THREE = 'x' }
const e: E = E.ONE;
const x: E.ONE = e;


//// [numericEnumMappedType.js]
"use strict";
// Repro from #31771
var E1;
(function (E1) {
    E1[E1["ONE"] = 0] = "ONE";
    E1[E1["TWO"] = 1] = "TWO";
    E1[E1["THREE"] = 2] = "THREE";
})(E1 || (E1 = {}));
var b1 = {};
var b2 = {};
var e1 = E1.ONE;
var e2 = E2.ONE;
b1[1] = "a";
b1[e1] = "b";
b2[1] = "a";
b2[e2] = "b";
var N1;
(function (N1) {
    N1[N1["A"] = val()] = "A";
    N1[N1["B"] = val()] = "B";
})(N1 || (N1 = {}));
var N2;
(function (N2) {
    N2[N2["C"] = val()] = "C";
    N2[N2["D"] = val()] = "D";
})(N2 || (N2 = {}));
var e = E.ONE;
var x = e;


//// [numericEnumMappedType.d.ts]
declare enum E1 {
    ONE = 0,
    TWO = 1,
    THREE = 2
}
declare enum E2 {
    ONE,
    TWO,
    THREE
}
type Bins1 = {
    [k in E1]?: string;
};
type Bins2 = {
    [k in E2]?: string;
};
declare const b1: Bins1;
declare const b2: Bins2;
declare const e1: E1;
declare const e2: E2;
declare function val(): number;
declare enum N1 {
    A,
    B
}
declare enum N2 {
    C,
    D
}
type T1 = {
    [K in N1 | N2]: K;
};
declare enum E {
    ONE = 0,
    TWO = 1,
    THREE = "x"
}
declare const e: E;
declare const x: E.ONE;