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sandersnsandersn
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Merge pull request #9997 from Microsoft/re-add-strict-concat-signature
Re-add strict concat signature
2 parents f06413b + e8bd372 commit 4a470bd

19 files changed

+88
-40
lines changed

‎src/lib/es5.d.ts‎

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@@ -1108,6 +1108,11 @@ interface Array<T> {
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* Removes the last element from an array and returns it.
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*/
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pop(): T | undefined;
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/**
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* Combines two or more arrays.
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* @param items Additional items to add to the end of array1.
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*/
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concat(...items: T[][]): T[];
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/**
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* Combines two or more arrays.
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* @param items Additional items to add to the end of array1.

‎tests/baselines/reference/arrayConcat2.symbols‎

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Original file line numberDiff line numberDiff line change
@@ -3,21 +3,21 @@ var a: string[] = [];
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>a : Symbol(a, Decl(arrayConcat2.ts, 0, 3))
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a.concat("hello", 'world');
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>a.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>a.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>a : Symbol(a, Decl(arrayConcat2.ts, 0, 3))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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a.concat('Hello');
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>a.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>a.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>a : Symbol(a, Decl(arrayConcat2.ts, 0, 3))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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var b = new Array<string>();
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>b : Symbol(b, Decl(arrayConcat2.ts, 5, 3))
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>Array : Symbol(Array, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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b.concat('hello');
20-
>b.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>b.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>b : Symbol(b, Decl(arrayConcat2.ts, 5, 3))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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‎tests/baselines/reference/arrayConcat2.types‎

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Original file line numberDiff line numberDiff line change
@@ -5,17 +5,17 @@ var a: string[] = [];
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a.concat("hello", 'world');
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>a.concat("hello", 'world') : string[]
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>a.concat : (...items: (string | string[])[]) => string[]
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>a.concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>a : string[]
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>concat : (...items: (string | string[])[]) => string[]
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>concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>"hello" : string
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>'world' : string
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a.concat('Hello');
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>a.concat('Hello') : string[]
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>a.concat : (...items: (string | string[])[]) => string[]
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>a.concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>a : string[]
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>concat : (...items: (string | string[])[]) => string[]
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>concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>'Hello' : string
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var b = new Array<string>();
@@ -25,8 +25,8 @@ var b = new Array<string>();
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b.concat('hello');
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>b.concat('hello') : string[]
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>b.concat : (...items: (string | string[])[]) => string[]
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>b.concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>b : string[]
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>concat : (...items: (string | string[])[]) => string[]
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>concat : { (...items: string[][]): string[]; (...items: (string | string[])[]): string[]; }
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>'hello' : string
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‎tests/baselines/reference/arrayConcatMap.symbols‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -2,8 +2,8 @@
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var x = [].concat([{ a: 1 }], [{ a: 2 }])
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>x : Symbol(x, Decl(arrayConcatMap.ts, 0, 3))
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>[].concat([{ a: 1 }], [{ a: 2 }]) .map : Symbol(Array.map, Decl(lib.d.ts, --, --))
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>[].concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>[].concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>a : Symbol(a, Decl(arrayConcatMap.ts, 0, 20))
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>a : Symbol(a, Decl(arrayConcatMap.ts, 0, 32))
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‎tests/baselines/reference/arrayConcatMap.types‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -4,9 +4,9 @@ var x = [].concat([{ a: 1 }], [{ a: 2 }])
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>[].concat([{ a: 1 }], [{ a: 2 }]) .map(b => b.a) : any[]
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>[].concat([{ a: 1 }], [{ a: 2 }]) .map : <U>(callbackfn: (value: any, index: number, array: any[]) => U, thisArg?: any) => U[]
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>[].concat([{ a: 1 }], [{ a: 2 }]) : any[]
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>[].concat : (...items: any[]) => any[]
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>[].concat : { (...items: any[][]): any[]; (...items: any[]): any[]; }
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>[] : undefined[]
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>concat : (...items: any[]) => any[]
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>concat : { (...items: any[][]): any[]; (...items: any[]): any[]; }
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>[{ a: 1 }] : { a: number; }[]
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>{ a: 1 } : { a: number; }
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>a : number

‎tests/baselines/reference/concatError.symbols‎

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Original file line numberDiff line numberDiff line change
@@ -14,15 +14,15 @@ var fa: number[];
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fa = fa.concat([0]);
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>fa : Symbol(fa, Decl(concatError.ts, 8, 3))
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>fa.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>fa.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>fa : Symbol(fa, Decl(concatError.ts, 8, 3))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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fa = fa.concat(0);
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>fa : Symbol(fa, Decl(concatError.ts, 8, 3))
23-
>fa.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>fa.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>fa : Symbol(fa, Decl(concatError.ts, 8, 3))
25-
>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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‎tests/baselines/reference/concatError.types‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -16,19 +16,19 @@ fa = fa.concat([0]);
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>fa = fa.concat([0]) : number[]
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>fa : number[]
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>fa.concat([0]) : number[]
19-
>fa.concat : (...items: (number | number[])[]) => number[]
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>fa.concat : { (...items: number[][]): number[]; (...items: (number | number[])[]): number[]; }
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>fa : number[]
21-
>concat : (...items: (number | number[])[]) => number[]
21+
>concat : { (...items: number[][]): number[]; (...items: (number | number[])[]): number[]; }
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>[0] : number[]
2323
>0 : number
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2525
fa = fa.concat(0);
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>fa = fa.concat(0) : number[]
2727
>fa : number[]
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>fa.concat(0) : number[]
29-
>fa.concat : (...items: (number | number[])[]) => number[]
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>fa.concat : { (...items: number[][]): number[]; (...items: (number | number[])[]): number[]; }
3030
>fa : number[]
31-
>concat : (...items: (number | number[])[]) => number[]
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>concat : { (...items: number[][]): number[]; (...items: (number | number[])[]): number[]; }
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>0 : number
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‎tests/baselines/reference/concatTuples.js‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,8 @@
1+
//// [concatTuples.ts]
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let ijs: [number, number][] = [[1, 2]];
3+
ijs = ijs.concat([[3, 4], [5, 6]]);
4+
5+
6+
//// [concatTuples.js]
7+
var ijs = [[1, 2]];
8+
ijs = ijs.concat([[3, 4], [5, 6]]);

‎tests/baselines/reference/concatTuples.symbols‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,10 @@
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=== tests/cases/compiler/concatTuples.ts ===
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let ijs: [number, number][] = [[1, 2]];
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>ijs : Symbol(ijs, Decl(concatTuples.ts, 0, 3))
4+
5+
ijs = ijs.concat([[3, 4], [5, 6]]);
6+
>ijs : Symbol(ijs, Decl(concatTuples.ts, 0, 3))
7+
>ijs.concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
8+
>ijs : Symbol(ijs, Decl(concatTuples.ts, 0, 3))
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>concat : Symbol(Array.concat, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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‎tests/baselines/reference/concatTuples.types‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,23 @@
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=== tests/cases/compiler/concatTuples.ts ===
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let ijs: [number, number][] = [[1, 2]];
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>ijs : [number, number][]
4+
>[[1, 2]] : [number, number][]
5+
>[1, 2] : [number, number]
6+
>1 : number
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>2 : number
8+
9+
ijs = ijs.concat([[3, 4], [5, 6]]);
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>ijs = ijs.concat([[3, 4], [5, 6]]) : [number, number][]
11+
>ijs : [number, number][]
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>ijs.concat([[3, 4], [5, 6]]) : [number, number][]
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>ijs.concat : { (...items: [number, number][][]): [number, number][]; (...items: ([number, number] | [number, number][])[]): [number, number][]; }
14+
>ijs : [number, number][]
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>concat : { (...items: [number, number][][]): [number, number][]; (...items: ([number, number] | [number, number][])[]): [number, number][]; }
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>[[3, 4], [5, 6]] : [number, number][]
17+
>[3, 4] : [number, number]
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>3 : number
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>4 : number
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>[5, 6] : [number, number]
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>5 : number
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>6 : number
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