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Emit updated export declarations when transformed from export * (#18017)

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* Failing test for missing transform output

* dont elide all export stars

* Remove comment from test

* Refuse to perform ellision on transformed nodes
This commit is contained in:
Wesley Wigham
2017-09-06 21:58:04 -07:00
committed by GitHub
parent 5c779b1edb
commit ed61d2d803
3 changed files with 60 additions and 10 deletions
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20
src/compiler/transformers/ts.ts
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@@ -208,6 +208,24 @@ namespace ts {
* @param node The node to visit.
*/
function sourceElementVisitorWorker(node: Node): VisitResult<Node> {
switch (node.kind) {
case SyntaxKind.ImportDeclaration:
case SyntaxKind.ImportEqualsDeclaration:
case SyntaxKind.ExportAssignment:
case SyntaxKind.ExportDeclaration:
return visitEllidableStatement(<ImportDeclaration | ImportEqualsDeclaration | ExportAssignment | ExportDeclaration>node);
default:
return visitorWorker(node);
}
}
function visitEllidableStatement(node: ImportDeclaration | ImportEqualsDeclaration | ExportAssignment | ExportDeclaration): VisitResult<Node> {
const parsed = getParseTreeNode(node);
if (parsed !== node) {
// If the node has been transformed by a `before` transformer, perform no ellision on it
// As the type information we would attempt to lookup to perform ellision is potentially unavailable for the synthesized nodes
return node;
}
switch (node.kind) {
case SyntaxKind.ImportDeclaration:
return visitImportDeclaration(<ImportDeclaration>node);
@@ -218,7 +236,7 @@ namespace ts {
case SyntaxKind.ExportDeclaration:
return visitExportDeclaration(<ExportDeclaration>node);
default:
return visitorWorker(node);
Debug.fail("Unhandled ellided statement");
}
}