150 lines
4.9 KiB
TypeScript
150 lines
4.9 KiB
TypeScript
class A {
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a: number;
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}
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class B extends A {
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b: number;
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}
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enum Compass {
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North, South, East, West
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}
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var numIndex: { [n: number]: string } = { 3: 'three', 'three': 'three' };
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var strIndex: { [n: string]: Compass } = { 'N': Compass.North, 'E': Compass.East };
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var bothIndex:
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{
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[n: string]: A;
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[m: number]: B;
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};
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function noIndex() { }
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var obj = {
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10: 'ten',
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x: 'hello',
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y: 32,
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z: { n: 'world', m: 15, o: () => false },
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'literal property': 100
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};
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var anyVar: any = {};
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var stringOrNumber: string | number;
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var someObject: { name: string };
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// Assign to a property access
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obj.y = 4;
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// Property access on value of type 'any'
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anyVar.x = anyVar.y = obj.x = anyVar.z;
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// Dotted property access of property that exists
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var aa = obj.x;
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// Dotted property access of property that exists on value's apparent type
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var bb = obj.hasOwnProperty;
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// Dotted property access of property that doesn't exist on value's apparent type
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var cc = obj.qqq; // error
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// Bracket notation property access using string literal value on type with property of that literal name
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var dd = obj['literal property'];
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var dd: number;
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// Bracket notation property access using string literal value on type without property of that literal name
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var ee = obj['wa wa wa wa wa'];
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var ee: any;
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// Bracket notation property access using numeric string literal value on type with property of that literal name
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var ff = obj['10'];
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var ff: string;
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// Bracket notation property access using numeric string literal value on type without property of that literal name
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var gg = obj['1'];
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var gg: any;
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// Bracket notation property access using numeric value on type with numeric index signature
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var hh = numIndex[3.0];
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var hh: string;
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// Bracket notation property access using enum value on type with numeric index signature
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var ii = numIndex[Compass.South];
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var ii: string;
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// Bracket notation property access using value of type 'any' on type with numeric index signature
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var jj = numIndex[anyVar];
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var jj: string;
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// Bracket notation property access using string value on type with numeric index signature
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var kk = numIndex['what'];
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var kk: any;
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// Bracket notation property access using value of other type on type with numeric index signature and no string index signature
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var ll = numIndex[someObject]; // Error
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// Bracket notation property access using string value on type with string index signature and no numeric index signature
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var mm = strIndex['N'];
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var mm: Compass;
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var mm2 = strIndex['zzz'];
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var mm2: Compass;
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// Bracket notation property access using numeric value on type with string index signature and no numeric index signature
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var nn = strIndex[10];
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var nn: Compass;
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// Bracket notation property access using enum value on type with string index signature and no numeric index signature
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var oo = strIndex[Compass.East];
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var oo: Compass;
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// Bracket notation property access using value of type 'any' on type with string index signature and no numeric index signature
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var pp = strIndex[<any>null];
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var pp: Compass;
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// Bracket notation property access using numeric value on type with no index signatures
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var qq = noIndex[123];
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var qq: any;
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// Bracket notation property access using string value on type with no index signatures
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var rr = noIndex['zzzz'];
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var rr: any;
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// Bracket notation property access using enum value on type with no index signatures
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var ss = noIndex[Compass.South];
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var ss: any;
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// Bracket notation property access using value of type 'any' on type with no index signatures
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var tt = noIndex[<any>null];
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var tt: any;
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// Bracket notation property access using values of other types on type with no index signatures
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var uu = noIndex[someObject]; // Error
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// Bracket notation property access using numeric value on type with numeric index signature and string index signature
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var vv = noIndex[32];
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var vv: any;
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// Bracket notation property access using enum value on type with numeric index signature and string index signature
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var ww = bothIndex[Compass.East];
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var ww: B;
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// Bracket notation property access using value of type 'any' on type with numeric index signature and string index signature
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var xx = bothIndex[<any>null];
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var xx: B;
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// Bracket notation property access using string value on type with numeric index signature and string index signature
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var yy = bothIndex['foo'];
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var yy: A;
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// Bracket notation property access using numeric string value on type with numeric index signature and string index signature
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var zz = bothIndex['1.0'];
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var zz: A;
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// Bracket notation property access using value of other type on type with numeric index signature and no string index signature and string index signature
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var zzzz = bothIndex[someObject]; // Error
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var x1 = numIndex[stringOrNumber];
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var x1: any;
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var x2 = strIndex[stringOrNumber];
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var x2: Compass;
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var x3 = bothIndex[stringOrNumber];
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var x3: A;
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