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Do not lookup name of default property symbols from the symbols value declaration (#28711)

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This commit is contained in:
Wesley Wigham
2018-11-28 13:58:43 -08:00
committed by GitHub
parent 52a46c6793
commit 54bbf74f62
5 changed files with 100 additions and 2 deletions
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10
src/compiler/checker.ts
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@@ -9410,8 +9410,13 @@ namespace ts {
if (!(getDeclarationModifierFlagsFromSymbol(prop) & ModifierFlags.NonPublicAccessibilityModifier)) {
let type = getLateBoundSymbol(prop).nameType;
if (!type && !isKnownSymbol(prop)) {
const name = prop.valueDeclaration && getNameOfDeclaration(prop.valueDeclaration) as PropertyName;
type = name && getLiteralTypeFromPropertyName(name) || getLiteralType(symbolName(prop));
if (prop.escapedName === InternalSymbolName.Default) {
type = getLiteralType("default");
}
else {
const name = prop.valueDeclaration && getNameOfDeclaration(prop.valueDeclaration) as PropertyName;
type = name && getLiteralTypeFromPropertyName(name) || getLiteralType(symbolName(prop));
}
}
if (type && type.flags & include) {
return type;
@@ -20873,6 +20878,7 @@ namespace ts {
if (hasSyntheticDefault) {
const memberTable = createSymbolTable();
const newSymbol = createSymbol(SymbolFlags.Alias, InternalSymbolName.Default);
newSymbol.nameType = getLiteralType("default");
newSymbol.target = resolveSymbol(symbol);
memberTable.set(InternalSymbolName.Default, newSymbol);
const anonymousSymbol = createSymbol(SymbolFlags.TypeLiteral, InternalSymbolName.Type);