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tests/cases/compiler/typeComparisonCaching.ts(26,1): error TS2322: Type 'B' is not assignable to type 'A'.
Types of property 's' are incompatible.
Type 'number' is not assignable to type 'string'.
tests/cases/compiler/typeComparisonCaching.ts(27,1): error TS2322: Type 'D' is not assignable to type 'C'.
Types of property 'q' are incompatible.
Type 'B' is not assignable to type 'A'.
==== tests/cases/compiler/typeComparisonCaching.ts (2 errors) ====
// Check that we only cache results of type comparisons that are free of assumptions
interface A {
p: C;
s: string;
}
interface B {
p: D;
s: number;
}
interface C {
q: A;
}
interface D {
q: B;
}
var a: A;
var b: B;
var c: C;
var d: D;
a = b;
~
!!! error TS2322: Type 'B' is not assignable to type 'A'.
!!! error TS2322: Types of property 's' are incompatible.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
c = d; // Should not be allowed
~
!!! error TS2322: Type 'D' is not assignable to type 'C'.
!!! error TS2322: Types of property 'q' are incompatible.
!!! error TS2322: Type 'B' is not assignable to type 'A'.
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