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tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(47,9): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(56,5): error TS2376: A 'super' call must be the first statement in the constructor to refer to 'super' or 'this' when a derived class contains initialized properties, parameter properties, or private identifiers.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(57,9): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(58,9): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(79,5): error TS2376: A 'super' call must be the first statement in the constructor to refer to 'super' or 'this' when a derived class contains initialized properties, parameter properties, or private identifiers.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(80,9): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts(81,9): error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
==== tests/cases/conformance/classes/constructorDeclarations/superCalls/derivedClassParameterProperties.ts (7 errors) ====
// ordering of super calls in derived constructors matters depending on other class contents
class Base {
x: string;
}
class Derived extends Base {
constructor(y: string) {
var a = 1;
super();
}
}
class Derived2 extends Base {
constructor(public y: string) {
var a = 1;
super();
}
}
class Derived3 extends Base {
constructor(public y: string) {
super();
var a = 1;
}
}
class Derived4 extends Base {
a = 1;
constructor(y: string) {
var b = 2;
super();
}
}
class Derived5 extends Base {
a = 1;
constructor(y: string) {
super();
var b = 2;
}
}
class Derived6 extends Base {
a: number;
constructor(y: string) {
this.a = 1;
~~~~
!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
var b = 2;
super();
}
}
class Derived7 extends Base {
a = 1;
b: number;
constructor(y: string) {
~~~~~~~~~~~~~~~~~~~~~~~~
this.a = 3;
~~~~~~~~~~~~~~~~~~~
~~~~
!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
this.b = 3;
~~~~~~~~~~~~~~~~~~~
~~~~
!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
super();
~~~~~~~~~~~~~~~~
}
~~~~~
!!! error TS2376: A 'super' call must be the first statement in the constructor to refer to 'super' or 'this' when a derived class contains initialized properties, parameter properties, or private identifiers.
}
class Derived8 extends Base {
a = 1;
b: number;
constructor(y: string) {
super();
this.a = 3;
this.b = 3;
}
}
// generic cases of Derived7 and Derived8
class Base2<T> { x: T; }
class Derived9<T> extends Base2<T> {
a = 1;
b: number;
constructor(y: string) {
~~~~~~~~~~~~~~~~~~~~~~~~
this.a = 3;
~~~~~~~~~~~~~~~~~~~
~~~~
!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
this.b = 3;
~~~~~~~~~~~~~~~~~~~
~~~~
!!! error TS17009: 'super' must be called before accessing 'this' in the constructor of a derived class.
super();
~~~~~~~~~~~~~~~~
}
~~~~~
!!! error TS2376: A 'super' call must be the first statement in the constructor to refer to 'super' or 'this' when a derived class contains initialized properties, parameter properties, or private identifiers.
}
class Derived10<T> extends Base2<T> {
a = 1;
b: number;
constructor(y: string) {
super();
this.a = 3;
this.b = 3;
}
}
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