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fix(51202): Circular instantiation expression crashing IDEs (#51214)

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Oleksandr T
2023-02-17 21:31:45 +02:00
committed by GitHub
parent a3a4993937
commit 088fdf6efe
14 changed files with 260 additions and 21 deletions
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14
src/compiler/checker.ts
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@@ -6677,6 +6677,20 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}
}
else {
const isInstantiationExpressionType = !!(getObjectFlags(type) & ObjectFlags.InstantiationExpressionType);
if (isInstantiationExpressionType) {
const instantiationExpressionType = type as InstantiationExpressionType;
if (isTypeQueryNode(instantiationExpressionType.node)) {
const typeNode = serializeExistingTypeNode(context, instantiationExpressionType.node);
if (typeNode) {
return typeNode;
}
}
if (context.visitedTypes?.has(typeId)) {
return createElidedInformationPlaceholder(context);
}
return visitAndTransformType(type, createTypeNodeFromObjectType);
}
// Anonymous types without a symbol are never circular.
return createTypeNodeFromObjectType(type);
}