154 lines
7.5 KiB
Plaintext
154 lines
7.5 KiB
Plaintext
tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(18,1): error TS2322: Type 'E' is not assignable to type 'D'.
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Property 'foo1' is missing in type 'E'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(19,1): error TS2322: Type 'D | E' is not assignable to type 'D'.
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Type 'E' is not assignable to type 'D'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(20,1): error TS2322: Type 'D' is not assignable to type 'E'.
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Property 'foo2' is missing in type 'D'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(22,1): error TS2322: Type 'D | E' is not assignable to type 'E'.
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Type 'D' is not assignable to type 'E'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(24,1): error TS2322: Type 'string' is not assignable to type 'number'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(25,1): error TS2322: Type 'string | number' is not assignable to type 'number'.
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Type 'string' is not assignable to type 'number'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(26,1): error TS2322: Type 'number' is not assignable to type 'string'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(28,1): error TS2322: Type 'string | number' is not assignable to type 'string'.
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Type 'number' is not assignable to type 'string'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(31,1): error TS2322: Type 'C' is not assignable to type 'D'.
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Property 'foo1' is missing in type 'C'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(32,1): error TS2322: Type 'C' is not assignable to type 'E'.
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Property 'foo2' is missing in type 'C'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(33,1): error TS2322: Type 'C' is not assignable to type 'D | E'.
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Type 'C' is not assignable to type 'E'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(35,1): error TS2322: Type 'D' is not assignable to type 'E'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(37,1): error TS2322: Type 'E' is not assignable to type 'D'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(41,1): error TS2322: Type 'number' is not assignable to type 'string'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(43,1): error TS2322: Type 'string' is not assignable to type 'number'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(64,5): error TS2322: Type 'U' is not assignable to type 'T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(65,5): error TS2322: Type 'T' is not assignable to type 'U'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(69,5): error TS2322: Type 'T | U' is not assignable to type 'T'.
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Type 'U' is not assignable to type 'T'.
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tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts(70,5): error TS2322: Type 'T | U' is not assignable to type 'U'.
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Type 'T' is not assignable to type 'U'.
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==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/unionTypesAssignability.ts (19 errors) ====
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var unionNumberString: number | string;
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class C { }
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class D extends C { foo1() { } }
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class E extends C { foo2() { } }
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var unionDE: D | E;
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var num: number;
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var str: string;
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var c: C;
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var d: D;
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var e: E;
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// A union type U is assignable to a type T if each type in U is assignable to T
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c = d;
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c = e;
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c = unionDE; // ok
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d = d;
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d = e;
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~
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!!! error TS2322: Type 'E' is not assignable to type 'D'.
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!!! error TS2322: Property 'foo1' is missing in type 'E'.
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d = unionDE; // error e is not assignable to d
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~
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!!! error TS2322: Type 'D | E' is not assignable to type 'D'.
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!!! error TS2322: Type 'E' is not assignable to type 'D'.
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e = d;
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~
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!!! error TS2322: Type 'D' is not assignable to type 'E'.
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!!! error TS2322: Property 'foo2' is missing in type 'D'.
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e = e;
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e = unionDE; // error d is not assignable to e
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~
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!!! error TS2322: Type 'D | E' is not assignable to type 'E'.
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!!! error TS2322: Type 'D' is not assignable to type 'E'.
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num = num;
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num = str;
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~~~
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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num = unionNumberString; // error string is not assignable to number
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~~~
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!!! error TS2322: Type 'string | number' is not assignable to type 'number'.
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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str = num;
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~~~
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!!! error TS2322: Type 'number' is not assignable to type 'string'.
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str = str;
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str = unionNumberString; // error since number is not assignable to string
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~~~
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!!! error TS2322: Type 'string | number' is not assignable to type 'string'.
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!!! error TS2322: Type 'number' is not assignable to type 'string'.
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// A type T is assignable to a union type U if T is assignable to any type in U
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d = c;
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~
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!!! error TS2322: Type 'C' is not assignable to type 'D'.
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!!! error TS2322: Property 'foo1' is missing in type 'C'.
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e = c;
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~
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!!! error TS2322: Type 'C' is not assignable to type 'E'.
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!!! error TS2322: Property 'foo2' is missing in type 'C'.
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unionDE = c; // error since C is not assinable to either D or E
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~~~~~~~
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!!! error TS2322: Type 'C' is not assignable to type 'D | E'.
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!!! error TS2322: Type 'C' is not assignable to type 'E'.
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d = d;
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e = d;
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~
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!!! error TS2322: Type 'D' is not assignable to type 'E'.
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unionDE = d; // ok
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d = e;
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~
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!!! error TS2322: Type 'E' is not assignable to type 'D'.
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e = e;
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unionDE = e; // ok
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num = num;
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str = num;
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~~~
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!!! error TS2322: Type 'number' is not assignable to type 'string'.
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unionNumberString = num; // ok
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num = str;
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~~~
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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str = str;
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unionNumberString = str; // ok
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// Any
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var anyVar: any;
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anyVar = unionDE;
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anyVar = unionNumberString;
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unionDE = anyVar;
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unionNumberString = anyVar;
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// null
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unionDE = null;
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unionNumberString = null;
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// undefined
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unionDE = undefined;
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unionNumberString = undefined;
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// type parameters
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function foo<T, U>(t: T, u: U) {
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t = u; // error
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~
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!!! error TS2322: Type 'U' is not assignable to type 'T'.
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u = t; // error
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~
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!!! error TS2322: Type 'T' is not assignable to type 'U'.
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var x : T | U;
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x = t; // ok
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x = u; // ok
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t = x; // error U not assignable to T
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~
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!!! error TS2322: Type 'T | U' is not assignable to type 'T'.
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!!! error TS2322: Type 'U' is not assignable to type 'T'.
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u = x; // error T not assignable to U
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~
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!!! error TS2322: Type 'T | U' is not assignable to type 'U'.
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!!! error TS2322: Type 'T' is not assignable to type 'U'.
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}
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