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tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(5,5): error TS2564: Property 'b' has no initializer and is not definitely assigned in the constructor.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(20,6): error TS1263: Declarations with initializers cannot also have definite assignment assertions.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(21,6): error TS1263: Declarations with initializers cannot also have definite assignment assertions.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(22,13): error TS1255: A definite assignment assertion '!' is not permitted in this context.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(23,5): error TS7008: Member 'd' implicitly has an 'any' type.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(23,6): error TS1264: Declarations with definite assignment assertions must also have type annotations.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(29,6): error TS1255: A definite assignment assertion '!' is not permitted in this context.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(35,15): error TS1255: A definite assignment assertion '!' is not permitted in this context.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(69,10): error TS1264: Declarations with definite assignment assertions must also have type annotations.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(70,10): error TS1263: Declarations with initializers cannot also have definite assignment assertions.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(71,10): error TS1263: Declarations with initializers cannot also have definite assignment assertions.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(76,15): error TS1255: A definite assignment assertion '!' is not permitted in this context.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(77,15): error TS1255: A definite assignment assertion '!' is not permitted in this context.
tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts(80,7): error TS1255: A definite assignment assertion '!' is not permitted in this context.
==== tests/cases/conformance/controlFlow/definiteAssignmentAssertions.ts (14 errors) ====
// Suppress strict property initialization check
class C1 {
a!: number;
b: string; // Error
~
!!! error TS2564: Property 'b' has no initializer and is not definitely assigned in the constructor.
}
// Suppress definite assignment check in constructor
class C2 {
a!: number;
constructor() {
let x = this.a;
}
}
// Definite assignment assertion requires type annotation, no initializer, no static modifier
class C3 {
a! = 1;
~
!!! error TS1263: Declarations with initializers cannot also have definite assignment assertions.
b!: number = 1;
~
!!! error TS1263: Declarations with initializers cannot also have definite assignment assertions.
static c!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
d!;
~
!!! error TS7008: Member 'd' implicitly has an 'any' type.
~
!!! error TS1264: Declarations with definite assignment assertions must also have type annotations.
}
// Definite assignment assertion not permitted in ambient context
declare class C4 {
a!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
}
// Definite assignment assertion not permitted on abstract property
abstract class C5 {
abstract a!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
}
// Suppress definite assignment check for variable
function f1() {
let x!: number;
let y = x;
var a!: number;
var b = a;
}
function f2() {
let x!: string | number;
if (typeof x === "string") {
let s: string = x;
}
else {
let n: number = x;
}
}
function f3() {
let x!: number;
const g = () => {
x = 1;
}
g();
let y = x;
}
// Definite assignment assertion requires type annotation and no initializer
function f4() {
let a!;
~
!!! error TS1264: Declarations with definite assignment assertions must also have type annotations.
let b! = 1;
~
!!! error TS1263: Declarations with initializers cannot also have definite assignment assertions.
let c!: number = 1;
~
!!! error TS1263: Declarations with initializers cannot also have definite assignment assertions.
}
// Definite assignment assertion not permitted in ambient context
declare let v1!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
declare var v2!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
declare namespace foo {
var v!: number;
~
!!! error TS1255: A definite assignment assertion '!' is not permitted in this context.
}
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