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//// [narrowingByDiscriminantInLoop.ts]
// Repro from #9977
type IDLMemberTypes = OperationMemberType | ConstantMemberType;
interface IDLTypeDescription {
origin: string;
}
interface InterfaceType {
members: IDLMemberTypes[];
}
interface OperationMemberType {
type: "operation";
idlType: IDLTypeDescription;
}
interface ConstantMemberType {
type: "const";
idlType: string;
}
function insertInterface(callbackType: InterfaceType) {
for (const memberType of callbackType.members) {
if (memberType.type === "const") {
memberType.idlType; // string
}
else if (memberType.type === "operation") {
memberType.idlType.origin; // string
(memberType.idlType as IDLTypeDescription);
}
}
}
function insertInterface2(callbackType: InterfaceType) {
for (const memberType of callbackType.members) {
if (memberType.type === "operation") {
memberType.idlType.origin; // string
}
}
}
function foo(memberType: IDLMemberTypes) {
if (memberType.type === "const") {
memberType.idlType; // string
}
else if (memberType.type === "operation") {
memberType.idlType.origin; // string
}
}
// Repro for issue similar to #8383
interface A {
kind: true;
prop: { a: string; };
}
interface B {
kind: false;
prop: { b: string; }
}
function f1(x: A | B) {
while (true) {
x.prop;
if (x.kind === true) {
x.prop.a;
}
if (x.kind === false) {
x.prop.b;
}
}
}
function f2(x: A | B) {
while (true) {
if (x.kind) {
x.prop.a;
}
if (!x.kind) {
x.prop.b;
}
}
}
//// [narrowingByDiscriminantInLoop.js]
// Repro from #9977
function insertInterface(callbackType) {
for (var _i = 0, _a = callbackType.members; _i < _a.length; _i++) {
var memberType = _a[_i];
if (memberType.type === "const") {
memberType.idlType; // string
}
else if (memberType.type === "operation") {
memberType.idlType.origin; // string
memberType.idlType;
}
}
}
function insertInterface2(callbackType) {
for (var _i = 0, _a = callbackType.members; _i < _a.length; _i++) {
var memberType = _a[_i];
if (memberType.type === "operation") {
memberType.idlType.origin; // string
}
}
}
function foo(memberType) {
if (memberType.type === "const") {
memberType.idlType; // string
}
else if (memberType.type === "operation") {
memberType.idlType.origin; // string
}
}
function f1(x) {
while (true) {
x.prop;
if (x.kind === true) {
x.prop.a;
}
if (x.kind === false) {
x.prop.b;
}
}
}
function f2(x) {
while (true) {
if (x.kind) {
x.prop.a;
}
if (!x.kind) {
x.prop.b;
}
}
}
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