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=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignaturesWithRestParameters.ts ===
// call signatures in derived types must have the same or fewer optional parameters as the target for assignment
interface Base {
>Base : Symbol(Base, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 0, 0))
a: (...args: number[]) => number;
>a : Symbol(Base.a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 2, 16))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 3, 8))
a2: (x: number, ...z: number[]) => number;
>a2 : Symbol(Base.a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 3, 37))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 4, 9))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 4, 19))
a3: (x: number, y?: string, ...z: number[]) => number;
>a3 : Symbol(Base.a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 4, 46))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 5, 9))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 5, 19))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 5, 31))
a4: (x?: number, y?: string, ...z: number[]) => number;
>a4 : Symbol(Base.a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 5, 58))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 6, 9))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 6, 20))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 6, 32))
}
var a: (...args: number[]) => number; // ok, same number of required params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 8))
a = () => 1; // ok, same number of required params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
a = (...args: number[]) => 1; // ok, same number of required params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 11, 9))
a = (...args: string[]) => 1; // error, type mismatch
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 12, 9))
a = (x?: number) => 1; // ok, same number of required params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 13, 9))
a = (x?: number, y?: number, z?: number) => 1; // ok, same number of required params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 14, 9))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 14, 20))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 14, 32))
a = (x: number) => 1; // ok, rest param corresponds to infinite number of params
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 15, 9))
a = (x?: string) => 1; // error, incompatible type
>a : Symbol(a, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 9, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 16, 9))
var a2: (x: number, ...z: number[]) => number;
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 9))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 19))
a2 = () => 1; // ok, fewer required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
a2 = (...args: number[]) => 1; // ok, fewer required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 21, 10))
a2 = (x?: number) => 1; // ok, fewer required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 22, 10))
a2 = (x: number) => 1; // ok, same number of required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 23, 10))
a2 = (x: number, ...args: number[]) => 1; // ok, same number of required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 24, 10))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 24, 20))
a2 = (x: number, ...args: string[]) => 1; // should be type mismatch error
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 25, 10))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 25, 20))
a2 = (x: number, y: number) => 1; // ok, rest param corresponds to infinite number of params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 26, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 26, 20))
a2 = (x: number, y?: number) => 1; // ok, same number of required params
>a2 : Symbol(a2, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 19, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 27, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 27, 20))
var a3: (x: number, y?: string, ...z: number[]) => number;
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 9))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 19))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 31))
a3 = () => 1; // ok, fewer required params
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
a3 = (x?: number) => 1; // ok, fewer required params
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 31, 10))
a3 = (x: number) => 1; // ok, same number of required params
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 32, 10))
a3 = (x: number, y: string) => 1; // ok, all present params match
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 33, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 33, 20))
a3 = (x: number, y?: number, z?: number) => 1; // error
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 34, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 34, 20))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 34, 32))
a3 = (x: number, ...z: number[]) => 1; // error
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 35, 10))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 35, 20))
a3 = (x: string, y?: string, z?: string) => 1; // error
>a3 : Symbol(a3, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 29, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 36, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 36, 20))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 36, 32))
var a4: (x?: number, y?: string, ...z: number[]) => number;
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 9))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 20))
>z : Symbol(z, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 32))
a4 = () => 1; // ok, fewer required params
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
a4 = (x?: number, y?: number) => 1; // error, type mismatch
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 40, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 40, 21))
a4 = (x: number) => 1; // ok, all present params match
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 41, 10))
a4 = (x: number, y?: number) => 1; // error, second param has type mismatch
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 42, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 42, 20))
a4 = (x?: number, y?: string) => 1; // ok, same number of required params with matching types
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 43, 10))
>y : Symbol(y, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 43, 21))
a4 = (x: number, ...args: string[]) => 1; // error, rest params have type mismatch
>a4 : Symbol(a4, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 38, 3))
>x : Symbol(x, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 44, 10))
>args : Symbol(args, Decl(assignmentCompatWithCallSignaturesWithRestParameters.ts, 44, 20))
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