47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
// @declaration: true
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class BaseA {
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public constructor(public x: number) { }
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createInstance() { new BaseA(1); }
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}
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class BaseB {
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protected constructor(public x: number) { }
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createInstance() { new BaseB(2); }
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}
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class BaseC {
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private constructor(public x: number) { }
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createInstance() { new BaseC(3); }
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static staticInstance() { new BaseC(4); }
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}
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class DerivedA extends BaseA {
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constructor(public x: number) { super(x); }
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createInstance() { new DerivedA(5); }
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createBaseInstance() { new BaseA(6); }
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static staticBaseInstance() { new BaseA(7); }
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}
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class DerivedB extends BaseB {
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constructor(public x: number) { super(x); }
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createInstance() { new DerivedB(7); }
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createBaseInstance() { new BaseB(8); } // ok
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static staticBaseInstance() { new BaseB(9); } // ok
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}
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class DerivedC extends BaseC { // error
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constructor(public x: number) { super(x); }
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createInstance() { new DerivedC(9); }
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createBaseInstance() { new BaseC(10); } // error
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static staticBaseInstance() { new BaseC(11); } // error
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}
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var ba = new BaseA(1);
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var bb = new BaseB(1); // error
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var bc = new BaseC(1); // error
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var da = new DerivedA(1);
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var db = new DerivedB(1);
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var dc = new DerivedC(1);
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