217 lines
5.8 KiB
Plaintext
217 lines
5.8 KiB
Plaintext
=== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts ===
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// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made,
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// the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them.
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function foo<T>(a: (x: T) => T, b: (x: T) => T) {
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>T : T
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>a : (x: T) => T
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>x : T
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>T : T
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>T : T
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>b : (x: T) => T
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>x : T
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>T : T
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>T : T
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var r: (x: T) => T;
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>r : (x: T) => T
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>x : T
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>T : T
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>T : T
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return r;
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>r : (x: T) => T
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}
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//var r1 = foo((x: number) => 1, (x: string) => ''); // error
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var r1b = foo((x) => 1, (x) => ''); // {} => {}
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>r1b : (x: {}) => {}
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>foo((x) => 1, (x) => '') : (x: {}) => {}
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x) => 1 : (x: {}) => number
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>x : {}
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>(x) => '' : (x: {}) => string
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>x : {}
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var r2 = foo((x: Object) => null, (x: string) => ''); // Object => Object
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>r2 : (x: any) => any
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>foo((x: Object) => null, (x: string) => '') : (x: any) => any
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: Object) => null : (x: Object) => any
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>x : Object
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>Object : Object
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>(x: string) => '' : (x: string) => string
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>x : string
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var r3 = foo((x: number) => 1, (x: Object) => null); // number => number
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>r3 : (x: any) => any
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>foo((x: number) => 1, (x: Object) => null) : (x: any) => any
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: number) => 1 : (x: number) => number
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>x : number
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>(x: Object) => null : (x: Object) => any
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>x : Object
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>Object : Object
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var r3ii = foo((x: number) => 1, (x: number) => 1); // number => number
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>r3ii : (x: number) => number
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>foo((x: number) => 1, (x: number) => 1) : (x: number) => number
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: number) => 1 : (x: number) => number
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>x : number
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>(x: number) => 1 : (x: number) => number
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>x : number
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var a: { x: number; y?: number; };
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>a : { x: number; y?: number; }
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>x : number
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>y : number
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var b: { x: number; z?: number; };
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>b : { x: number; z?: number; }
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>x : number
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>z : number
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var r4 = foo((x: typeof a) => a, (x: typeof b) => b); // typeof a => typeof a
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>r4 : (x: { x: number; y?: number; }) => { x: number; y?: number; }
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>foo((x: typeof a) => a, (x: typeof b) => b) : (x: { x: number; y?: number; }) => { x: number; y?: number; }
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: typeof a) => a : (x: { x: number; y?: number; }) => { x: number; y?: number; }
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>x : { x: number; y?: number; }
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>a : { x: number; y?: number; }
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>a : { x: number; y?: number; }
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>(x: typeof b) => b : (x: { x: number; z?: number; }) => { x: number; z?: number; }
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>x : { x: number; z?: number; }
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>b : { x: number; z?: number; }
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>b : { x: number; z?: number; }
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var r5 = foo((x: typeof b) => b, (x: typeof a) => a); // typeof b => typeof b
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>r5 : (x: { x: number; z?: number; }) => { x: number; z?: number; }
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>foo((x: typeof b) => b, (x: typeof a) => a) : (x: { x: number; z?: number; }) => { x: number; z?: number; }
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: typeof b) => b : (x: { x: number; z?: number; }) => { x: number; z?: number; }
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>x : { x: number; z?: number; }
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>b : { x: number; z?: number; }
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>b : { x: number; z?: number; }
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>(x: typeof a) => a : (x: { x: number; y?: number; }) => { x: number; y?: number; }
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>x : { x: number; y?: number; }
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>a : { x: number; y?: number; }
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>a : { x: number; y?: number; }
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function other<T>(x: T) {
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>other : <T>(x: T) => void
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>T : T
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>x : T
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>T : T
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var r6 = foo((a: T) => a, (b: T) => b); // T => T
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>r6 : (x: T) => T
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>foo((a: T) => a, (b: T) => b) : (x: T) => T
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(a: T) => a : (a: T) => T
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>a : T
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>T : T
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>a : T
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>(b: T) => b : (b: T) => T
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>b : T
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>T : T
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>b : T
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var r6b = foo((a) => a, (b) => b); // {} => {}
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>r6b : (x: {}) => {}
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>foo((a) => a, (b) => b) : (x: {}) => {}
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(a) => a : (a: {}) => {}
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>a : {}
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>a : {}
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>(b) => b : (b: {}) => {}
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>b : {}
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>b : {}
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}
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function other2<T extends Date>(x: T) {
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>other2 : <T extends Date>(x: T) => void
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>T : T
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>Date : Date
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>x : T
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>T : T
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var r7 = foo((a: T) => a, (b: T) => b); // T => T
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>r7 : (x: T) => T
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>foo((a: T) => a, (b: T) => b) : (x: T) => T
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(a: T) => a : (a: T) => T
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>a : T
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>T : T
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>a : T
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>(b: T) => b : (b: T) => T
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>b : T
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>T : T
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>b : T
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var r7b = foo((a) => a, (b) => b); // {} => {}
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>r7b : (x: {}) => {}
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>foo((a) => a, (b) => b) : (x: {}) => {}
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>foo : <T>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(a) => a : (a: {}) => {}
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>a : {}
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>a : {}
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>(b) => b : (b: {}) => {}
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>b : {}
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>b : {}
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var r8 = r7(null);
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>r8 : T
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>r7(null) : T
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>r7 : (x: T) => T
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// BUG 835518
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//var r9 = r7(new Date());
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}
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function foo2<T extends Date>(a: (x: T) => T, b: (x: T) => T) {
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>foo2 : <T extends Date>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>T : T
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>Date : Date
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>a : (x: T) => T
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>x : T
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>T : T
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>T : T
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>b : (x: T) => T
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>x : T
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>T : T
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>T : T
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var r: (x: T) => T;
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>r : (x: T) => T
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>x : T
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>T : T
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>T : T
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return r;
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>r : (x: T) => T
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}
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function other3<T extends RegExp>(x: T) {
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>other3 : <T extends RegExp>(x: T) => void
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>T : T
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>RegExp : RegExp
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>x : T
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>T : T
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var r8 = foo2((a: Date) => a, (b: Date) => b); // Date => Date
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>r8 : (x: Date) => Date
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>foo2((a: Date) => a, (b: Date) => b) : (x: Date) => Date
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>foo2 : <T extends Date>(a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(a: Date) => a : (a: Date) => Date
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>a : Date
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>Date : Date
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>a : Date
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>(b: Date) => b : (b: Date) => Date
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>b : Date
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>Date : Date
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>b : Date
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}
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