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Kanchalai Tanglertsampan 2016-09-29 18:02:59 -07:00
parent 7b525ea99f
commit a5a71693b7
1 changed files with 6 additions and 9 deletions
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15
src/compiler/binder.ts
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@ -358,16 +358,13 @@ namespace ts {
}
else {
// This is to properly report an error in the case "export default { }" is after export default of class declaration or function declaration.
for (const declaration of symbol.declarations) {
// Error on multiple export default in the following case:
// 1. multiple export default of class declaration or function declaration by checking NodeFlags.Default
// 2. multiple export default of export assignment. This one doesn't have NodeFlags.Default on (as export default doesn't considered as modifiers)
if ((declaration.flags & NodeFlags.Default) ||
(declaration.kind === SyntaxKind.ExportAssignment && !(<ExportAssignment>node).isExportEquals)) {
// Error on multiple export default in the following case:
// 1. multiple export default of class declaration or function declaration by checking NodeFlags.Default
// 2. multiple export default of export assignment. This one doesn't have NodeFlags.Default on (as export default doesn't considered as modifiers)
if (symbol.declarations && symbol.declarations.length &&
(isDefaultExport || (node.kind === SyntaxKind.ExportAssignment && !(<ExportAssignment>node).isExportEquals))) {
message = Diagnostics.A_module_cannot_have_multiple_default_exports;
break;
}
}
}
}
}