2014-08-15 23:33:16 +02:00
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=== tests/cases/conformance/types/typeRelationships/bestCommonType/heterogeneousArrayLiterals.ts ===
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// type of an array is the best common type of its elements (plus its contextual type if it exists)
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var a = [1, '']; // {}[]
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>a : {}[]
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>[1, ''] : {}[]
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var b = [1, null]; // number[]
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>b : number[]
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>[1, null] : number[]
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var c = [1, '', null]; // {}[]
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>c : {}[]
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>[1, '', null] : {}[]
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var d = [{}, 1]; // {}[]
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>d : {}[]
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>[{}, 1] : {}[]
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>{} : {}
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var e = [{}, Object]; // {}[]
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>e : {}[]
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>[{}, Object] : {}[]
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>{} : {}
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>Object : { (): any; (value: any): any; new (value?: any): Object; prototype: Object; getPrototypeOf(o: any): any; getOwnPropertyDescriptor(o: any, p: string): PropertyDescriptor; getOwnPropertyNames(o: any): string[]; create(o: any, properties?: PropertyDescriptorMap): any; defineProperty(o: any, p: string, attributes: PropertyDescriptor): any; defineProperties(o: any, properties: PropertyDescriptorMap): any; seal(o: any): any; freeze(o: any): any; preventExtensions(o: any): any; isSealed(o: any): boolean; isFrozen(o: any): boolean; isExtensible(o: any): boolean; keys(o: any): string[]; }
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var f = [[], [1]]; // number[][]
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>f : number[][]
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>[[], [1]] : number[][]
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>[] : undefined[]
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>[1] : number[]
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var g = [[1], ['']]; // {}[]
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>g : {}[]
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>[[1], ['']] : {}[]
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>[1] : number[]
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>[''] : string[]
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var h = [{ foo: 1, bar: '' }, { foo: 2 }]; // {foo: number}[]
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>h : { foo: number; }[]
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>[{ foo: 1, bar: '' }, { foo: 2 }] : { foo: number; }[]
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>{ foo: 1, bar: '' } : { foo: number; bar: string; }
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>foo : number
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>bar : string
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>{ foo: 2 } : { foo: number; }
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>foo : number
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var i = [{ foo: 1, bar: '' }, { foo: '' }]; // {}[]
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>i : {}[]
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>[{ foo: 1, bar: '' }, { foo: '' }] : {}[]
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>{ foo: 1, bar: '' } : { foo: number; bar: string; }
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>foo : number
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>bar : string
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>{ foo: '' } : { foo: string; }
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>foo : string
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var j = [() => 1, () => '']; // {}[]
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>j : {}[]
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>[() => 1, () => ''] : {}[]
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>() => 1 : () => number
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>() => '' : () => string
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var k = [() => 1, () => 1]; // { (): number }[]
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>k : { (): number; }[]
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>[() => 1, () => 1] : { (): number; }[]
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>() => 1 : () => number
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>() => 1 : () => number
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var l = [() => 1, () => null]; // { (): any }[]
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>l : { (): any; }[]
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>[() => 1, () => null] : { (): any; }[]
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>() => 1 : () => number
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>() => null : () => any
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var m = [() => 1, () => '', () => null]; // { (): any }[]
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>m : { (): any; }[]
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>[() => 1, () => '', () => null] : { (): any; }[]
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>() => 1 : () => number
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>() => '' : () => string
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>() => null : () => any
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var n = [[() => 1], [() => '']]; // {}[]
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>n : {}[]
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>[[() => 1], [() => '']] : {}[]
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>[() => 1] : { (): number; }[]
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>() => 1 : () => number
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>[() => ''] : { (): string; }[]
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>() => '' : () => string
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class Base { foo: string; }
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>Base : Base
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>foo : string
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class Derived extends Base { bar: string; }
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>Derived : Derived
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>Base : Base
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>bar : string
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class Derived2 extends Base { baz: string; }
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>Derived2 : Derived2
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>Base : Base
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>baz : string
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var base: Base;
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>base : Base
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>Base : Base
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var derived: Derived;
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>derived : Derived
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>Derived : Derived
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var derived2: Derived2;
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>derived2 : Derived2
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>Derived2 : Derived2
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module Derived {
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2014-08-28 21:40:58 +02:00
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>Derived : typeof Derived
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2014-08-15 23:33:16 +02:00
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var h = [{ foo: base, basear: derived }, { foo: base }]; // {foo: Base}[]
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>h : { foo: Base; }[]
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>[{ foo: base, basear: derived }, { foo: base }] : { foo: Base; }[]
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>{ foo: base, basear: derived } : { foo: Base; basear: Derived; }
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>foo : Base
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2014-08-25 19:36:12 +02:00
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>base : Base
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2014-08-15 23:33:16 +02:00
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>basear : Derived
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2014-08-25 19:36:12 +02:00
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>derived : Derived
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2014-08-15 23:33:16 +02:00
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>{ foo: base } : { foo: Base; }
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>foo : Base
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2014-08-25 19:36:12 +02:00
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>base : Base
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2014-08-15 23:33:16 +02:00
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var i = [{ foo: base, basear: derived }, { foo: derived }]; // {foo: Derived}[]
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>i : {}[]
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>[{ foo: base, basear: derived }, { foo: derived }] : {}[]
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>{ foo: base, basear: derived } : { foo: Base; basear: Derived; }
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>foo : Base
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2014-08-25 19:36:12 +02:00
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>base : Base
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2014-08-15 23:33:16 +02:00
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>basear : Derived
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2014-08-25 19:36:12 +02:00
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>derived : Derived
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2014-08-15 23:33:16 +02:00
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>{ foo: derived } : { foo: Derived; }
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>foo : Derived
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2014-08-25 19:36:12 +02:00
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>derived : Derived
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2014-08-15 23:33:16 +02:00
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var j = [() => base, () => derived]; // { {}: Base }
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>j : { (): Base; }[]
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>[() => base, () => derived] : { (): Base; }[]
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>() => base : () => Base
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>base : Base
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>() => derived : () => Derived
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>derived : Derived
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var k = [() => base, () => 1]; // {}[]~
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>k : {}[]
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>[() => base, () => 1] : {}[]
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>() => base : () => Base
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>base : Base
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>() => 1 : () => number
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var l = [() => base, () => null]; // { (): any }[]
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>l : { (): any; }[]
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>[() => base, () => null] : { (): any; }[]
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>() => base : () => Base
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>base : Base
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>() => null : () => any
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var m = [() => base, () => derived, () => null]; // { (): any }[]
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>m : { (): any; }[]
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>[() => base, () => derived, () => null] : { (): any; }[]
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>() => base : () => Base
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>base : Base
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>() => derived : () => Derived
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>derived : Derived
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>() => null : () => any
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var n = [[() => base], [() => derived]]; // { (): Base }[]
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>n : { (): Base; }[][]
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>[[() => base], [() => derived]] : { (): Base; }[][]
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>[() => base] : { (): Base; }[]
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>() => base : () => Base
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>base : Base
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>[() => derived] : { (): Derived; }[]
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>() => derived : () => Derived
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>derived : Derived
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var o = [derived, derived2]; // {}[]
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>o : {}[]
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>[derived, derived2] : {}[]
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>derived : Derived
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>derived2 : Derived2
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var p = [derived, derived2, base]; // Base[]
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>p : Base[]
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>[derived, derived2, base] : Base[]
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>derived : Derived
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>derived2 : Derived2
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>base : Base
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var q = [[() => derived2], [() => derived]]; // {}[]
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>q : {}[]
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>[[() => derived2], [() => derived]] : {}[]
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>[() => derived2] : { (): Derived2; }[]
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>() => derived2 : () => Derived2
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>derived2 : Derived2
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>[() => derived] : { (): Derived; }[]
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>() => derived : () => Derived
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>derived : Derived
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}
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module WithContextualType {
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2014-08-28 21:40:58 +02:00
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>WithContextualType : typeof WithContextualType
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2014-08-15 23:33:16 +02:00
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// no errors
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var a: Base[] = [derived, derived2];
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>a : Base[]
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>Base : Base
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>[derived, derived2] : Base[]
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>derived : Derived
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>derived2 : Derived2
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var b: Derived[] = [null];
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>b : Derived[]
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>Derived : Derived
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>[null] : Derived[]
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var c: Derived[] = [];
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>c : Derived[]
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>Derived : Derived
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>[] : Derived[]
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var d: { (): Base }[] = [() => derived, () => derived2];
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>d : { (): Base; }[]
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>Base : Base
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>[() => derived, () => derived2] : { (): Base; }[]
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>() => derived : () => Derived
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>derived : Derived
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>() => derived2 : () => Derived2
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>derived2 : Derived2
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}
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function foo<T, U>(t: T, u: U) {
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2014-08-28 21:52:44 +02:00
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>foo : <T, U>(t: T, u: U) => void
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2014-08-15 23:33:16 +02:00
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>T : T
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>U : U
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>t : T
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>T : T
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>u : U
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>U : U
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var a = [t, t]; // T[]
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>a : T[]
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>[t, t] : T[]
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>t : T
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>t : T
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var b = [t, null]; // T[]
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>b : T[]
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>[t, null] : T[]
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>t : T
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var c = [t, u]; // {}[]
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>c : {}[]
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>[t, u] : {}[]
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>t : T
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>u : U
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var d = [t, 1]; // {}[]
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>d : {}[]
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>[t, 1] : {}[]
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>t : T
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var e = [() => t, () => u]; // {}[]
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>e : {}[]
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>[() => t, () => u] : {}[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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var f = [() => t, () => u, () => null]; // { (): any }[]
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>f : { (): any; }[]
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>[() => t, () => u, () => null] : { (): any; }[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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>() => null : () => any
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}
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function foo2<T extends Base, U extends Derived>(t: T, u: U) {
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2014-08-28 21:52:44 +02:00
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>foo2 : <T extends Base, U extends Derived>(t: T, u: U) => void
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2014-08-15 23:33:16 +02:00
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>T : T
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>Base : Base
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>U : U
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>Derived : Derived
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>t : T
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>T : T
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>u : U
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>U : U
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var a = [t, t]; // T[]
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>a : T[]
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>[t, t] : T[]
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>t : T
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>t : T
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var b = [t, null]; // T[]
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>b : T[]
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>[t, null] : T[]
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>t : T
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var c = [t, u]; // {}[]
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>c : {}[]
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>[t, u] : {}[]
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>t : T
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>u : U
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var d = [t, 1]; // {}[]
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>d : {}[]
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>[t, 1] : {}[]
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>t : T
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var e = [() => t, () => u]; // {}[]
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>e : {}[]
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>[() => t, () => u] : {}[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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var f = [() => t, () => u, () => null]; // { (): any }[]
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>f : { (): any; }[]
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>[() => t, () => u, () => null] : { (): any; }[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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>() => null : () => any
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var g = [t, base]; // Base[]
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>g : Base[]
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>[t, base] : Base[]
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>t : T
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>base : Base
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var h = [t, derived]; // Derived[]
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>h : {}[]
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>[t, derived] : {}[]
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>t : T
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>derived : Derived
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var i = [u, base]; // Base[]
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>i : Base[]
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>[u, base] : Base[]
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>u : U
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>base : Base
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var j = [u, derived]; // Derived[]
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>j : Derived[]
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>[u, derived] : Derived[]
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>u : U
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>derived : Derived
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}
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function foo3<T extends Derived, U extends Derived>(t: T, u: U) {
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2014-08-28 21:52:44 +02:00
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>foo3 : <T extends Derived, U extends Derived>(t: T, u: U) => void
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2014-08-15 23:33:16 +02:00
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>T : T
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>Derived : Derived
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>U : U
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>Derived : Derived
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>t : T
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>T : T
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>u : U
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>U : U
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var a = [t, t]; // T[]
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>a : T[]
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>[t, t] : T[]
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>t : T
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>t : T
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var b = [t, null]; // T[]
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>b : T[]
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>[t, null] : T[]
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>t : T
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var c = [t, u]; // {}[]
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>c : {}[]
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>[t, u] : {}[]
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>t : T
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>u : U
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var d = [t, 1]; // {}[]
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>d : {}[]
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>[t, 1] : {}[]
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>t : T
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var e = [() => t, () => u]; // {}[]
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>e : {}[]
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>[() => t, () => u] : {}[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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var f = [() => t, () => u, () => null]; // { (): any }[]
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>f : { (): any; }[]
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>[() => t, () => u, () => null] : { (): any; }[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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>() => null : () => any
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var g = [t, base]; // Base[]
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>g : Base[]
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>[t, base] : Base[]
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>t : T
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>base : Base
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var h = [t, derived]; // Derived[]
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>h : Derived[]
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>[t, derived] : Derived[]
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>t : T
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>derived : Derived
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var i = [u, base]; // Base[]
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>i : Base[]
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>[u, base] : Base[]
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>u : U
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>base : Base
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var j = [u, derived]; // Derived[]
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>j : Derived[]
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>[u, derived] : Derived[]
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>u : U
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>derived : Derived
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}
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function foo4<T extends Base, U extends Base>(t: T, u: U) {
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2014-08-28 21:52:44 +02:00
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>foo4 : <T extends Base, U extends Base>(t: T, u: U) => void
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2014-08-15 23:33:16 +02:00
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>T : T
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>Base : Base
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>U : U
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>Base : Base
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>t : T
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>T : T
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>u : U
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>U : U
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var a = [t, t]; // T[]
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>a : T[]
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>[t, t] : T[]
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>t : T
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>t : T
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var b = [t, null]; // T[]
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>b : T[]
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>[t, null] : T[]
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>t : T
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var c = [t, u]; // BUG 821629
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>c : {}[]
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>[t, u] : {}[]
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>t : T
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>u : U
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var d = [t, 1]; // {}[]
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>d : {}[]
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>[t, 1] : {}[]
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>t : T
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var e = [() => t, () => u]; // {}[]
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>e : {}[]
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>[() => t, () => u] : {}[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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var f = [() => t, () => u, () => null]; // { (): any }[]
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>f : { (): any; }[]
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>[() => t, () => u, () => null] : { (): any; }[]
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>() => t : () => T
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>t : T
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>() => u : () => U
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>u : U
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>() => null : () => any
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var g = [t, base]; // Base[]
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>g : Base[]
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>[t, base] : Base[]
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>t : T
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>base : Base
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var h = [t, derived]; // Derived[]
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>h : {}[]
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>[t, derived] : {}[]
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>t : T
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>derived : Derived
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var i = [u, base]; // Base[]
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>i : Base[]
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>[u, base] : Base[]
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>u : U
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>base : Base
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var j = [u, derived]; // Derived[]
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>j : {}[]
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>[u, derived] : {}[]
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>u : U
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>derived : Derived
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var k: Base[] = [t, u];
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>k : Base[]
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>Base : Base
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>[t, u] : Base[]
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>t : T
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>u : U
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}
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//function foo3<T extends U, U extends Derived>(t: T, u: U) {
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// var a = [t, t]; // T[]
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// var b = [t, null]; // T[]
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// var c = [t, u]; // {}[]
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// var d = [t, 1]; // {}[]
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// var e = [() => t, () => u]; // {}[]
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// var f = [() => t, () => u, () => null]; // { (): any }[]
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// var g = [t, base]; // Base[]
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// var h = [t, derived]; // Derived[]
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// var i = [u, base]; // Base[]
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// var j = [u, derived]; // Derived[]
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//}
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//function foo4<T extends U, U extends Base>(t: T, u: U) {
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// var a = [t, t]; // T[]
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// var b = [t, null]; // T[]
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// var c = [t, u]; // BUG 821629
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// var d = [t, 1]; // {}[]
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// var e = [() => t, () => u]; // {}[]
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// var f = [() => t, () => u, () => null]; // { (): any }[]
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// var g = [t, base]; // Base[]
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// var h = [t, derived]; // Derived[]
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// var i = [u, base]; // Base[]
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// var j = [u, derived]; // Derived[]
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// var k: Base[] = [t, u];
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//}
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