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Fix bug: handle missing symbol.parent for non-accessible symbol (#21834)

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Andy
2018-02-09 13:48:40 -08:00
committed by GitHub
parent 6dd88b39d5
commit aa1ebda6a6
2 changed files with 11 additions and 1 deletions
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2
src/services/completions.ts
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@@ -712,7 +712,7 @@ namespace ts.Completions {
function getFirstSymbolInChain(symbol: Symbol, enclosingDeclaration: Node, checker: TypeChecker): Symbol | undefined {
const chain = checker.getAccessibleSymbolChain(symbol, enclosingDeclaration, /*meaning*/ SymbolFlags.All, /*useOnlyExternalAliasing*/ false);
if (chain) return first(chain);
return isModuleSymbol(symbol.parent) ? symbol : symbol.parent && getFirstSymbolInChain(symbol.parent, enclosingDeclaration, checker);
return symbol.parent && (isModuleSymbol(symbol.parent) ? symbol : getFirstSymbolInChain(symbol.parent, enclosingDeclaration, checker));
}
function isModuleSymbol(symbol: Symbol): boolean {