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//// [tests/cases/conformance/controlFlow/controlFlowInOperator.ts] ////
//// [controlFlowInOperator.ts]
const a = 'a';
const b = 'b';
const d = 'd';
type A = { [a]: number; };
type B = { [b]: string; };
declare const c: A | B;
if ('a' in c) {
c; // A
c['a']; // number;
}
if ('d' in c) {
c; // never
}
if (a in c) {
c; // A
c[a]; // number;
}
if (d in c) {
c; // never
}
// repro from https://github.com/microsoft/TypeScript/issues/54790
function uniqueID_54790(
id: string | undefined,
seenIDs: { [key: string]: string }
): string {
if (id === undefined) {
id = "1";
}
if (!(id in seenIDs)) {
return id;
}
for (let i = 1; i < Number.MAX_VALUE; i++) {
const newID = `${id}-${i}`;
if (!(newID in seenIDs)) {
return newID;
}
}
throw Error("heat death of the universe");
}
function uniqueID_54790_2(id: string | number, seenIDs: object) {
id = "a";
for (let i = 1; i < 3; i++) {
const newID = `${id}`;
if (newID in seenIDs) {
}
}
}
function uniqueID_54790_3(id: string | number, seenIDs: object) {
id = "a";
for (let i = 1; i < 3; i++) {
const newID = id;
if (newID in seenIDs) {
}
}
}
//// [controlFlowInOperator.js]
var a = 'a';
var b = 'b';
var d = 'd';
if ('a' in c) {
c; // A
c['a']; // number;
}
if ('d' in c) {
c; // never
}
if (a in c) {
c; // A
c[a]; // number;
}
if (d in c) {
c; // never
}
// repro from https://github.com/microsoft/TypeScript/issues/54790
function uniqueID_54790(id, seenIDs) {
if (id === undefined) {
id = "1";
}
if (!(id in seenIDs)) {
return id;
}
for (var i = 1; i < Number.MAX_VALUE; i++) {
var newID = "".concat(id, "-").concat(i);
if (!(newID in seenIDs)) {
return newID;
}
}
throw Error("heat death of the universe");
}
function uniqueID_54790_2(id, seenIDs) {
id = "a";
for (var i = 1; i < 3; i++) {
var newID = "".concat(id);
if (newID in seenIDs) {
}
}
}
function uniqueID_54790_3(id, seenIDs) {
id = "a";
for (var i = 1; i < 3; i++) {
var newID = id;
if (newID in seenIDs) {
}
}
}
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