36 lines
972 B
Plaintext
36 lines
972 B
Plaintext
==== tests/cases/compiler/genericTypeAssertions4.ts (5 errors) ====
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class A {
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foo() { return ""; }
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}
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class B extends A {
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bar() { return 1; }
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}
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class C extends A {
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baz() { return 1; }
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}
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var a: A;
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var b: B;
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var c: C;
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function foo2<T extends A>(x: T) {
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var y = x;
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y = a; // error: cannot convert A to T
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~
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!!! Type 'A' is not assignable to type 'T'.
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y = b; // error: cannot convert B to T
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~
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!!! Type 'B' is not assignable to type 'T'.
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y = c; // error: cannot convert C to T
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~
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!!! Type 'C' is not assignable to type 'T'.
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y = <T>a;
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y = <T>b; // error: cannot convert B to T
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~~~~
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!!! Neither type 'T' nor type 'B' is assignable to the other.
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y = <T>c; // error: cannot convert C to T
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~~~~
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!!! Neither type 'T' nor type 'C' is assignable to the other.
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} |