Created
June 26, 2017 23:12
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Tuple nonsense
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interface TupleConstructor { | |
new <T0>(item0: T0) | |
: [T0]; | |
new <T0, T1>(item0: T0, item1: T1) | |
: [T0, T1]; | |
new <T0, T1, T2>(item0: T0, item1: T1, item2: T2) | |
: [T0, T1, T2]; | |
new <T0, T1, T2, T3>(item0: T0, item1: T1, item2: T2, tem3: T3) | |
: [T0, T1, T2, T3]; | |
new <T0, T1, T2, T3, T4>(item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4) | |
: [T0, T1, T2, T3, T4]; | |
new <T0, T1, T2, T3, T4, T5>(item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5) | |
: [T0, T1, T2, T3, T4, T5]; | |
new <T0, T1, T2, T3, T4, T5, T6>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6) | |
: [T0, T1, T2, T3, T4, T5, T6]; | |
new <T0, T1, T2, T3, T4, T5, T6, T7>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7) | |
: [T0, T1, T2, T3, T4, T5, T6, T7]; | |
new <T0, T1, T2, T3, T4, T5, T6, T7, T8>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8) | |
: [T0, T1, T2, T3, T4, T5, T6, T7, T8]; | |
new <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8, item9: T9) | |
: [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]; | |
new <T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, TR extends any[]>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8, item9: T9, restTuple: TR | |
): [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, TR[0], TR[1]] & TR; | |
//new <...TA>(...args: TA): ...TA; | |
} | |
const x: [number, string] = [0, "0"]; | |
const y: [number, string] = [1, "1"]; | |
//const z: [typeof ...x, typeof ...y] = [...x, ...y]; // Error (currently) | |
const z: [typeof x[0], typeof x[1], typeof y[0], typeof y[1]] = ; // Error (currently) | |
const Tuple: TupleConstructor = (((...args: any[]) => { | |
//it will never be more than one deep because function arguments are resolved | |
//before the function call | |
if (args.length === 11) { | |
return args.concat(args.pop()); | |
} else { | |
return args; | |
} | |
}) as any) as TupleConstructor; | |
// class Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> implements [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]{ | |
// constructor( | |
// item0?: T0, | |
// item1?: T1, | |
// item2?: T2, | |
// item3?: T3, | |
// item4?: T4, | |
// item5?: T5, | |
// item6?: T6, | |
// item7?: T7, | |
// item8?: T8, | |
// item9?: T9, | |
// ) { | |
// return [item0, item1, item2, item3, item4, item5, item6, item7, item8, item9] as [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]; | |
// } | |
// } | |
function newTuple<T0>(item0: T0) | |
: [T0]; | |
function newTuple<T0, T1>(item0: T0, item1: T1) | |
: [T0, T1]; | |
function newTuple<T0, T1, T2>(item0: T0, item1: T1, item2: T2) | |
: [T0, T1, T2]; | |
function newTuple<T0, T1, T2, T3>(item0: T0, item1: T1, item2: T2, tem3: T3) | |
: [T0, T1, T2, T3]; | |
function newTuple<T0, T1, T2, T3, T4>(item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4) | |
: [T0, T1, T2, T3, T4]; | |
function newTuple<T0, T1, T2, T3, T4, T5>(item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5) | |
: [T0, T1, T2, T3, T4, T5]; | |
function newTuple<T0, T1, T2, T3, T4, T5, T6>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6) | |
: [T0, T1, T2, T3, T4, T5, T6]; | |
function newTuple<T0, T1, T2, T3, T4, T5, T6, T7>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7) | |
: [T0, T1, T2, T3, T4, T5, T6, T7]; | |
function newTuple<T0, T1, T2, T3, T4, T5, T6, T7, T8>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8) | |
: [T0, T1, T2, T3, T4, T5, T6, T7, T8]; | |
function newTuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8, item9: T9) | |
: [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]; | |
function newTuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, TR>( | |
item0: T0, item1: T1, item2: T2, tem3: T3, item4: T4, item5: T5, item6: T6, item7: T7, item8: T8, item9: T9, restTuple: TR | |
): [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9] & TR; | |
function newTuple(...args: any[]): any { | |
//it will never be more than one deep because function arguments are resolved | |
//before the function call | |
if (args.length === 11) { | |
return args.concat(args.pop()); | |
} else { | |
return args; | |
} | |
} | |
const test = new Tuple("", "", "", 0, "", "", "", "", "", false, new Tuple("", 0, "", "test" as "test", "test")); | |
var t0 = test[0]; // type: string | |
var t1 = test[1]; // type: string & number | |
var t2 = test[2]; // type: string | |
var t3 = test[3]; // type: string & "test" | |
var t4 = test[4]; // type: string | |
var t5 = test[5]; // type: string | |
var t6 = test[6]; // type: string | |
var t7 = test[7]; // type: string | |
var t8 = test[8]; // type: string | |
var t9 = test[9]; // type: string | |
var t10 = test[10]; // type: string | (string & number) | |
var t11 = test[11]; // type: string | (string & number) | |
var t12 = test[12]; // type: string | (string & number) | |
var t13 = test[13]; // type: string | (string & number) | |
var t14 = test[14]; // type: string | (string & number) | |
var t15 = test[15]; // type: string | (string & number) | |
var t16 = test[16]; // type: string | (string & number) | |
var t17 = test[17]; // type: string | (string & number) | |
// repeats t17 on up. |
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