46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
//Cond ? Expr1 : Expr2, Expr1 and Expr2 have identical best common type
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class X { propertyX: any; propertyX1: number; propertyX2: string };
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class A extends X { propertyA: number };
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class B extends X { propertyB: string };
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var x: X;
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var a: A;
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var b: B;
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//Cond ? Expr1 : Expr2, Expr1 is supertype
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//Be Not contextually typed
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true ? x : a;
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var result1 = true ? x : a;
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//Expr1 and Expr2 are literals
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true ? {} : 1;
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true ? { a: 1 } : { a: 2, b: 'string' };
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var result2 = true ? {} : 1;
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var result3 = true ? { a: 1 } : { a: 2, b: 'string' };
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//Contextually typed
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var resultIsX1: X = true ? x : a;
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var result4: (t: A) => any = true ? (m) => m.propertyX : (n) => n.propertyA;
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//Cond ? Expr1 : Expr2, Expr2 is supertype
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//Be Not contextually typed
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true ? a : x;
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var result5 = true ? a : x;
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//Expr1 and Expr2 are literals
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true ? 1 : {};
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true ? { a: 2, b: 'string' } : { a: 1 };
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var result6 = true ? 1 : {};
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var result7 = true ? { a: 2, b: 'string' } : { a: 1 };
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//Contextually typed
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var resultIsX2: X = true ? x : a;
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var result8: (t: A) => any = true ? (m) => m.propertyA : (n) => n.propertyX;
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//Result = Cond ? Expr1 : Expr2, Result is supertype
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//Contextually typed
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var resultIsX3: X = true ? a : b;
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var result10: (t: X) => any = true ? (m) => m.propertyX1 : (n) => n.propertyX2;
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//Expr1 and Expr2 are literals
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var result11: any = true ? 1 : 'string';
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