39 lines
523 B
TypeScript
39 lines
523 B
TypeScript
interface A { a: string }
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interface B { b: string }
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interface C { c: string }
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interface D { d: string }
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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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var d: D;
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var anb: A & B;
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var aob: A | B;
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var cnd: C & D;
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var cod: C | D;
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var x: A & B | C & D;
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var y: (A | B) & (C | D);
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a = anb; // Ok
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b = anb; // Ok
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anb = a;
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anb = b;
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x = anb; // Ok
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x = aob;
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x = cnd; // Ok
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x = cod;
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anb = x;
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aob = x;
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cnd = x;
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cod = x;
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y = anb;
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y = aob;
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y = cnd;
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y = cod;
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anb = y;
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aob = y; // Ok
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cnd = y;
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cod = y; // Ok
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