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enclosingDeclaration can be undefined within getAccessibleSymbolChain (#18400)

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Wesley Wigham 2017-09-12 10:43:24 -07:00 committed by GitHub
parent 2fbc2259a1
commit 403f585622
1 changed files with 3 additions and 3 deletions
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6
src/compiler/checker.ts
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@ -2063,7 +2063,7 @@ namespace ts {
return rightMeaning === SymbolFlags.Value ? SymbolFlags.Value : SymbolFlags.Namespace;
}
function getAccessibleSymbolChain(symbol: Symbol, enclosingDeclaration: Node, meaning: SymbolFlags, useOnlyExternalAliasing: boolean): Symbol[] | undefined {
function getAccessibleSymbolChain(symbol: Symbol, enclosingDeclaration: Node | undefined, meaning: SymbolFlags, useOnlyExternalAliasing: boolean): Symbol[] | undefined {
if (!(symbol && !isPropertyOrMethodDeclarationSymbol(symbol))) {
return undefined;
}
@ -2112,7 +2112,7 @@ namespace ts {
if (symbolFromSymbolTable.flags & SymbolFlags.Alias
&& symbolFromSymbolTable.escapedName !== "export="
&& !getDeclarationOfKind(symbolFromSymbolTable, SyntaxKind.ExportSpecifier)
&& !(isUMDExportSymbol(symbolFromSymbolTable) && isExternalModule(getSourceFileOfNode(enclosingDeclaration)))
&& !(isUMDExportSymbol(symbolFromSymbolTable) && enclosingDeclaration && isExternalModule(getSourceFileOfNode(enclosingDeclaration)))
// If `!useOnlyExternalAliasing`, we can use any type of alias to get the name
&& (!useOnlyExternalAliasing || some(symbolFromSymbolTable.declarations, isExternalModuleImportEqualsDeclaration))) {
@ -2132,7 +2132,7 @@ namespace ts {
}
}
function needsQualification(symbol: Symbol, enclosingDeclaration: Node, meaning: SymbolFlags) {
function needsQualification(symbol: Symbol, enclosingDeclaration: Node | undefined, meaning: SymbolFlags) {
let qualify = false;
forEachSymbolTableInScope(enclosingDeclaration, symbolTable => {
// If symbol of this name is not available in the symbol table we are ok