Merge pull request #13913 from Microsoft/allowExportDeclarationsInAmbientNamespaces
Allow export declarations in ambient namespaces
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13cb66c555
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@ -19540,7 +19540,9 @@ namespace ts {
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forEach(node.exportClause.elements, checkExportSpecifier);
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const inAmbientExternalModule = node.parent.kind === SyntaxKind.ModuleBlock && isAmbientModule(node.parent.parent);
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if (node.parent.kind !== SyntaxKind.SourceFile && !inAmbientExternalModule) {
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const inAmbientNamespaceDeclaration = !inAmbientExternalModule && node.parent.kind === SyntaxKind.ModuleBlock &&
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!node.moduleSpecifier && isInAmbientContext(node);
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if (node.parent.kind !== SyntaxKind.SourceFile && !inAmbientExternalModule && !inAmbientNamespaceDeclaration) {
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error(node, Diagnostics.Export_declarations_are_not_permitted_in_a_namespace);
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}
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}
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@ -0,0 +1,13 @@
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//// [exportDeclarationsInAmbientNamespaces.ts]
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declare namespace Q {
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function _try(method: Function, ...args: any[]): any;
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export { _try as try };
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}
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Q.try(() => { });
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//// [exportDeclarationsInAmbientNamespaces.js]
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Q["try"](function () { });
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@ -0,0 +1,22 @@
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=== tests/cases/compiler/exportDeclarationsInAmbientNamespaces.ts ===
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declare namespace Q {
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>Q : Symbol(Q, Decl(exportDeclarationsInAmbientNamespaces.ts, 0, 0))
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function _try(method: Function, ...args: any[]): any;
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>_try : Symbol(_try, Decl(exportDeclarationsInAmbientNamespaces.ts, 1, 21))
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>method : Symbol(method, Decl(exportDeclarationsInAmbientNamespaces.ts, 2, 18))
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>Function : Symbol(Function, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
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>args : Symbol(args, Decl(exportDeclarationsInAmbientNamespaces.ts, 2, 35))
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export { _try as try };
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>_try : Symbol(try, Decl(exportDeclarationsInAmbientNamespaces.ts, 3, 12))
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>try : Symbol(try, Decl(exportDeclarationsInAmbientNamespaces.ts, 3, 12))
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}
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Q.try(() => { });
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>Q.try : Symbol(Q.try, Decl(exportDeclarationsInAmbientNamespaces.ts, 3, 12))
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>Q : Symbol(Q, Decl(exportDeclarationsInAmbientNamespaces.ts, 0, 0))
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>try : Symbol(Q.try, Decl(exportDeclarationsInAmbientNamespaces.ts, 3, 12))
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@ -0,0 +1,24 @@
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=== tests/cases/compiler/exportDeclarationsInAmbientNamespaces.ts ===
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declare namespace Q {
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>Q : typeof Q
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function _try(method: Function, ...args: any[]): any;
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>_try : (method: Function, ...args: any[]) => any
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>method : Function
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>Function : Function
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>args : any[]
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export { _try as try };
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>_try : (method: Function, ...args: any[]) => any
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>try : (method: Function, ...args: any[]) => any
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}
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Q.try(() => { });
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>Q.try(() => { }) : any
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>Q.try : (method: Function, ...args: any[]) => any
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>Q : typeof Q
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>try : (method: Function, ...args: any[]) => any
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>() => { } : () => void
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@ -0,0 +1,16 @@
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tests/cases/compiler/exportDeclarationsInAmbientNamespaces2.ts(7,23): error TS1194: Export declarations are not permitted in a namespace.
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==== tests/cases/compiler/exportDeclarationsInAmbientNamespaces2.ts (1 errors) ====
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declare module "mod" {
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export var x: number;
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}
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declare namespace N {
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export { x } from "mod"; // Error
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~~~~~
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!!! error TS1194: Export declarations are not permitted in a namespace.
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}
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@ -0,0 +1,13 @@
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//// [exportDeclarationsInAmbientNamespaces2.ts]
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declare module "mod" {
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export var x: number;
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}
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declare namespace N {
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export { x } from "mod"; // Error
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}
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//// [exportDeclarationsInAmbientNamespaces2.js]
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@ -0,0 +1,8 @@
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declare namespace Q {
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function _try(method: Function, ...args: any[]): any;
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export { _try as try };
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}
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Q.try(() => { });
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@ -0,0 +1,9 @@
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declare module "mod" {
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export var x: number;
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}
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declare namespace N {
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export { x } from "mod"; // Error
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}
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