57 lines
1.8 KiB
Text
57 lines
1.8 KiB
Text
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==== tests/cases/conformance/types/typeParameters/typeParameterLists/propertyAccessOnTypeParameterWithConstraints5.ts (6 errors) ====
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class A {
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foo(): string { return ''; }
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}
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class B extends A {
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bar(): string {
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return '';
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}
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}
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class C<U extends T, T extends A> {
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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f() {
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var x: U;
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var a = x['foo'](); // should be string
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return a + x.foo() + x.notHere();
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}
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}
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var r = (new C<B, A>()).f();
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interface I<U extends T, T extends A> {
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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foo: U;
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}
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var i: I<B, A>;
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var r2 = i.foo.notHere();
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~~~~~~~
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!!! Property 'notHere' does not exist on type 'B'.
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var r2b = i.foo['foo']();
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var a: {
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<U extends T, T extends A>(): U;
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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}
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// BUG 794164
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var r3: string = a().notHere();
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~~~~~~~
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!!! Property 'notHere' does not exist on type '{}'.
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var r3b: string = a()['foo']();
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var b = {
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foo: <U extends T, T extends A>(x: U): U => {
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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var a = x['foo'](); // should be string
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return a + x.notHere();
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},
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// BUG 794164
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bar: b.foo(1).notHere()
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}
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var r4 = b.foo(new B()); // error after constraints above made illegal, doesn't matter
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