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tests/cases/compiler/intersectionsAndReadonlyProperties.ts(17,4): error TS2540: Cannot assign to 'a' because it is a read-only property.
==== tests/cases/compiler/intersectionsAndReadonlyProperties.ts (1 errors) ====
// readonly and non-readonly
type Intersection1 = { readonly a: number } & { a: number };
declare let i1: Intersection1;
i1.a = 2;
// getter and setter
type Intersection2 = { get a(): number } & { set a(v: number) };
declare let i2: Intersection2;
i2.a = 2;
// assignment to an all read-only property should still be disallowed
type IntersectionAllReadonly = { readonly a: number } & { get a(): number };
declare let ia: IntersectionAllReadonly;
ia.a = 2; // Error
~
!!! error TS2540: Cannot assign to 'a' because it is a read-only property.
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