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=== tests/cases/conformance/functions/functionImplementationErrors.ts ===
// FunctionExpression with no return type annotation with multiple return statements with unrelated types
var f1 = function () {
>f1 : () => "" | 3
>function () { return ''; return 3;} : () => "" | 3
return '';
>'' : ""
return 3;
>3 : 3
};
var f2 = function x() {
>f2 : () => "" | 3
>function x() { return ''; return 3;} : () => "" | 3
>x : () => "" | 3
return '';
>'' : ""
return 3;
>3 : 3
};
var f3 = () => {
>f3 : () => "" | 3
>() => { return ''; return 3;} : () => "" | 3
return '';
>'' : ""
return 3;
>3 : 3
};
// FunctionExpression with no return type annotation with return branch of number[] and other of string[]
var f4 = function () {
>f4 : () => string[] | number[]
>function () { if (true) { return ['']; } else { return [1]; }} : () => string[] | number[]
if (true) {
>true : true
return [''];
>[''] : string[]
>'' : ""
} else {
return [1];
>[1] : number[]
>1 : 1
}
}
// Function implemetnation with non -void return type annotation with no return
function f5(): number {
>f5 : () => number
}
var m;
>m : any
// Function signature with parameter initializer referencing in scope local variable
function f6(n = m) {
>f6 : (n?: number) => void
>n : number
>m : number
var m = 4;
>m : number
>4 : 4
}
// Function signature with initializer referencing other parameter to the right
function f7(n = m, m?) {
>f7 : (n?: any, m?: any) => void
>n : any
>m : any
>m : any
}
// FunctionExpression with non -void return type annotation with a throw, no return, and other code
// Should be error but isn't
undefined === function (): number {
>undefined === function (): number { throw undefined; var x = 4;} : boolean
>undefined : undefined
>function (): number { throw undefined; var x = 4;} : () => number
throw undefined;
>undefined : undefined
var x = 4;
>x : number
>4 : 4
};
class Base { private x; }
>Base : Base
>x : any
class AnotherClass { private y; }
>AnotherClass : AnotherClass
>y : any
class Derived1 extends Base { private m; }
>Derived1 : Derived1
>Base : Base
>m : any
class Derived2 extends Base { private n; }
>Derived2 : Derived2
>Base : Base
>n : any
function f8() {
>f8 : () => Derived1 | Derived2
return new Derived1();
>new Derived1() : Derived1
>Derived1 : typeof Derived1
return new Derived2();
>new Derived2() : Derived2
>Derived2 : typeof Derived2
}
var f9 = function () {
>f9 : () => Derived1 | Derived2
>function () { return new Derived1(); return new Derived2();} : () => Derived1 | Derived2
return new Derived1();
>new Derived1() : Derived1
>Derived1 : typeof Derived1
return new Derived2();
>new Derived2() : Derived2
>Derived2 : typeof Derived2
};
var f10 = () => {
>f10 : () => Derived1 | Derived2
>() => { return new Derived1(); return new Derived2();} : () => Derived1 | Derived2
return new Derived1();
>new Derived1() : Derived1
>Derived1 : typeof Derived1
return new Derived2();
>new Derived2() : Derived2
>Derived2 : typeof Derived2
};
function f11() {
>f11 : () => Base | AnotherClass
return new Base();
>new Base() : Base
>Base : typeof Base
return new AnotherClass();
>new AnotherClass() : AnotherClass
>AnotherClass : typeof AnotherClass
}
var f12 = function () {
>f12 : () => Base | AnotherClass
>function () { return new Base(); return new AnotherClass();} : () => Base | AnotherClass
return new Base();
>new Base() : Base
>Base : typeof Base
return new AnotherClass();
>new AnotherClass() : AnotherClass
>AnotherClass : typeof AnotherClass
};
var f13 = () => {
>f13 : () => Base | AnotherClass
>() => { return new Base(); return new AnotherClass();} : () => Base | AnotherClass
return new Base();
>new Base() : Base
>Base : typeof Base
return new AnotherClass();
>new AnotherClass() : AnotherClass
>AnotherClass : typeof AnotherClass
};
|
