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Do not emit ES6 import/export inside namespaces

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ES6 imports and exports are illegal inside namespaces. In order to emit syntactically legal code, skip emit for these incorrect statements.
This commit is contained in:
Nathan Shively-Sanders 2016-04-11 14:27:18 -07:00
parent 1e49a57a8d
commit 2cb7401a56
1 changed files with 10 additions and 2 deletions
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12
src/compiler/transformers/ts.ts
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@ -157,7 +157,15 @@ namespace ts {
* @param node The node to visit.
*/
function namespaceElementVisitorWorker(node: Node): VisitResult<Node> {
if (node.transformFlags & TransformFlags.TypeScript || hasModifier(node, ModifierFlags.Export)) {
if (node.kind === SyntaxKind.ExportDeclaration ||
node.kind === SyntaxKind.ImportDeclaration ||
node.kind === SyntaxKind.ImportClause ||
(node.kind === SyntaxKind.ImportEqualsDeclaration &&
(<ImportEqualsDeclaration>node).moduleReference.kind === SyntaxKind.ExternalModuleReference)) {
// do not emit ES6 imports and exports since they are illegal inside a namespace
return createNotEmittedStatement(node);
}
else if (node.transformFlags & TransformFlags.TypeScript || hasModifier(node, ModifierFlags.Export)) {
// This node is explicitly marked as TypeScript, or is exported at the namespace
// level, so we should transform the node.
return visitTypeScript(node);
@ -2903,4 +2911,4 @@ namespace ts {
&& resolver.getNodeCheckFlags(getOriginalNode(currentSuperContainer)) & (NodeCheckFlags.AsyncMethodWithSuper | NodeCheckFlags.AsyncMethodWithSuperBinding);
}
}
}
}