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Fix bug when augmenting parent-less symbol (#28345)

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Andy
2018-11-05 12:57:33 -08:00
committed by GitHub
parent 4cb210ce2e
commit f37101e871
5 changed files with 107 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -26751,7 +26751,7 @@ namespace ts {
let reportError = !(symbol.flags & SymbolFlags.Transient);
if (!reportError) {
// symbol should not originate in augmentation
reportError = isExternalModuleAugmentation(symbol.parent!.declarations[0]);
reportError = !!symbol.parent && isExternalModuleAugmentation(symbol.parent.declarations[0]);
}
}
break;