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vladimavladima
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Merge pull request #8104 from Microsoft/newEntitiesInGlobalAugmentations
permit global augmentations to introduce new names
2 parents 0cfe24e + 6f3f690 commit 79a3e77

11 files changed

+275
-62
lines changed

‎src/compiler/checker.ts

Lines changed: 8 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -15572,7 +15572,9 @@ namespace ts {
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break;
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case SyntaxKind.ImportEqualsDeclaration:
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if ((<ImportEqualsDeclaration>node).moduleReference.kind !== SyntaxKind.StringLiteral) {
15575-
error((<ImportEqualsDeclaration>node).name, Diagnostics.Module_augmentation_cannot_introduce_new_names_in_the_top_level_scope);
15575+
if (!isGlobalAugmentation) {
15576+
error((<ImportEqualsDeclaration>node).name, Diagnostics.Module_augmentation_cannot_introduce_new_names_in_the_top_level_scope);
15577+
}
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break;
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}
1557815580
// fallthrough
@@ -15596,6 +15598,9 @@ namespace ts {
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case SyntaxKind.InterfaceDeclaration:
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case SyntaxKind.ModuleDeclaration:
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case SyntaxKind.TypeAliasDeclaration:
15601+
if (isGlobalAugmentation) {
15602+
return;
15603+
}
1559915604
const symbol = getSymbolOfNode(node);
1560015605
if (symbol) {
1560115606
// module augmentations cannot introduce new names on the top level scope of the module
@@ -15604,14 +15609,8 @@ namespace ts {
1560415609
// 2. main check - report error if value declaration of the parent symbol is module augmentation)
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let reportError = !(symbol.flags & SymbolFlags.Merged);
1560615611
if (!reportError) {
15607-
if (isGlobalAugmentation) {
15608-
// global symbol should not have parent since it is not explicitly exported
15609-
reportError = symbol.parent !== undefined;
15610-
}
15611-
else {
15612-
// symbol should not originate in augmentation
15613-
reportError = isExternalModuleAugmentation(symbol.parent.declarations[0]);
15614-
}
15612+
// symbol should not originate in augmentation
15613+
reportError = isExternalModuleAugmentation(symbol.parent.declarations[0]);
1561515614
}
1561615615
if (reportError) {
1561715616
error(node, Diagnostics.Module_augmentation_cannot_introduce_new_names_in_the_top_level_scope);

‎tests/baselines/reference/moduleAugmentationGlobal4.errors.txt

Lines changed: 0 additions & 25 deletions
This file was deleted.

‎tests/baselines/reference/moduleAugmentationGlobal4.symbols

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
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=== tests/cases/compiler/f1.ts ===
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declare global {
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>global : Symbol(, Decl(f1.ts, 0, 0))
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interface Something {x}
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>Something : Symbol(Something, Decl(f1.ts, 1, 16), Decl(f2.ts, 1, 16))
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>x : Symbol(Something.x, Decl(f1.ts, 2, 25))
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}
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export {};
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=== tests/cases/compiler/f2.ts ===
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declare global {
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>global : Symbol(, Decl(f2.ts, 0, 0))
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interface Something {y}
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>Something : Symbol(Something, Decl(f1.ts, 1, 16), Decl(f2.ts, 1, 16))
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>y : Symbol(Something.y, Decl(f2.ts, 2, 25))
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}
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export {};
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=== tests/cases/compiler/f3.ts ===
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import "./f1";
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No type information for this code.import "./f2";
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No type information for this code.
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No type information for this code.
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No type information for this code.

‎tests/baselines/reference/moduleAugmentationGlobal4.types

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
=== tests/cases/compiler/f1.ts ===
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declare global {
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>global : any
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interface Something {x}
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>Something : Something
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>x : any
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}
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export {};
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=== tests/cases/compiler/f2.ts ===
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declare global {
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>global : any
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interface Something {y}
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>Something : Something
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>y : any
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}
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export {};
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=== tests/cases/compiler/f3.ts ===
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import "./f1";
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No type information for this code.import "./f2";
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No type information for this code.
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No type information for this code.
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No type information for this code.

‎tests/baselines/reference/moduleAugmentationGlobal5.errors.txt

Lines changed: 0 additions & 28 deletions
This file was deleted.

‎tests/baselines/reference/moduleAugmentationGlobal5.symbols

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@@ -0,0 +1,28 @@
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=== tests/cases/compiler/f3.ts ===
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/// <reference path="f1.d.ts"/>
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No type information for this code./// <reference path="f2.d.ts"/>
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No type information for this code.import "A";
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No type information for this code.import "B";
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No type information for this code.
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No type information for this code.
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No type information for this code.=== tests/cases/compiler/f1.d.ts ===
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declare module "A" {
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global {
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>global : Symbol(, Decl(f1.d.ts, 1, 20))
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interface Something {x}
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>Something : Symbol(Something, Decl(f1.d.ts, 2, 12), Decl(f2.d.ts, 1, 12))
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>x : Symbol(Something.x, Decl(f1.d.ts, 3, 29))
17+
}
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}
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=== tests/cases/compiler/f2.d.ts ===
20+
declare module "B" {
21+
global {
22+
>global : Symbol(, Decl(f2.d.ts, 0, 20))
23+
24+
interface Something {y}
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>Something : Symbol(Something, Decl(f1.d.ts, 2, 12), Decl(f2.d.ts, 1, 12))
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>y : Symbol(Something.y, Decl(f2.d.ts, 2, 29))
27+
}
28+
}

‎tests/baselines/reference/moduleAugmentationGlobal5.types

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=== tests/cases/compiler/f3.ts ===
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/// <reference path="f1.d.ts"/>
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No type information for this code./// <reference path="f2.d.ts"/>
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No type information for this code.import "A";
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No type information for this code.import "B";
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No type information for this code.
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No type information for this code.
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No type information for this code.=== tests/cases/compiler/f1.d.ts ===
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declare module "A" {
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global {
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>global : any
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interface Something {x}
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>Something : Something
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>x : any
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}
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}
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=== tests/cases/compiler/f2.d.ts ===
20+
declare module "B" {
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global {
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>global : any
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interface Something {y}
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>Something : Something
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>y : any
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}
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}

‎tests/baselines/reference/newNamesInGlobalAugmentations1.js

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//// [tests/cases/compiler/newNamesInGlobalAugmentations1.ts] ////
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//// [f1.d.ts]
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export {};
6+
7+
declare module M.M1 {
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export let x: number;
9+
}
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declare global {
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interface SymbolConstructor {
12+
observable: symbol;
13+
}
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class Cls {x}
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let [a, b]: number[];
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export import X = M.M1.x;
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}
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//// [main.ts]
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Symbol.observable;
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new Cls().x
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let c = a + b + X;
24+
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//// [main.js]
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Symbol.observable;
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new Cls().x;
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let c = a + b + X;

‎tests/baselines/reference/newNamesInGlobalAugmentations1.symbols

Lines changed: 53 additions & 0 deletions
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@@ -0,0 +1,53 @@
1+
=== tests/cases/compiler/f1.d.ts ===
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export {};
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5+
declare module M.M1 {
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>M : Symbol(M, Decl(f1.d.ts, 1, 10))
7+
>M1 : Symbol(M1, Decl(f1.d.ts, 3, 17))
8+
9+
export let x: number;
10+
>x : Symbol(x, Decl(f1.d.ts, 4, 14))
11+
}
12+
declare global {
13+
>global : Symbol(, Decl(f1.d.ts, 5, 1))
14+
15+
interface SymbolConstructor {
16+
>SymbolConstructor : Symbol(SymbolConstructor, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(f1.d.ts, 6, 16))
17+
18+
observable: symbol;
19+
>observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
20+
}
21+
class Cls {x}
22+
>Cls : Symbol(Cls, Decl(f1.d.ts, 9, 5))
23+
>x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
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25+
let [a, b]: number[];
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>a : Symbol(a, Decl(f1.d.ts, 11, 9))
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>b : Symbol(b, Decl(f1.d.ts, 11, 11))
28+
29+
export import X = M.M1.x;
30+
>X : Symbol(X, Decl(f1.d.ts, 11, 25))
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>M : Symbol(M, Decl(f1.d.ts, 1, 10))
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>M1 : Symbol(M.M1, Decl(f1.d.ts, 3, 17))
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>x : Symbol(X, Decl(f1.d.ts, 4, 14))
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}
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=== tests/cases/compiler/main.ts ===
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38+
Symbol.observable;
39+
>Symbol.observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
40+
>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
41+
>observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
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new Cls().x
44+
>new Cls().x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
45+
>Cls : Symbol(Cls, Decl(f1.d.ts, 9, 5))
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>x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
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let c = a + b + X;
49+
>c : Symbol(c, Decl(main.ts, 3, 3))
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>a : Symbol(a, Decl(f1.d.ts, 11, 9))
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>b : Symbol(b, Decl(f1.d.ts, 11, 11))
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>X : Symbol(X, Decl(f1.d.ts, 11, 25))
53+

‎tests/baselines/reference/newNamesInGlobalAugmentations1.types

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=== tests/cases/compiler/f1.d.ts ===
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export {};
4+
5+
declare module M.M1 {
6+
>M : typeof M
7+
>M1 : typeof M1
8+
9+
export let x: number;
10+
>x : number
11+
}
12+
declare global {
13+
>global : any
14+
15+
interface SymbolConstructor {
16+
>SymbolConstructor : SymbolConstructor
17+
18+
observable: symbol;
19+
>observable : symbol
20+
}
21+
class Cls {x}
22+
>Cls : Cls
23+
>x : any
24+
25+
let [a, b]: number[];
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>a : number
27+
>b : number
28+
29+
export import X = M.M1.x;
30+
>X : number
31+
>M : typeof M
32+
>M1 : typeof M.M1
33+
>x : number
34+
}
35+
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=== tests/cases/compiler/main.ts ===
37+
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Symbol.observable;
39+
>Symbol.observable : symbol
40+
>Symbol : SymbolConstructor
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>observable : symbol
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new Cls().x
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>new Cls().x : any
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>new Cls() : Cls
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>Cls : typeof Cls
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>x : any
48+
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let c = a + b + X;
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>c : number
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>a + b + X : number
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>a + b : number
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>a : number
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>b : number
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>X : number
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