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1 parent dc19f47 commit 6adcd82Copy full SHA for 6adcd82
src/compiler/checker.ts
@@ -22056,7 +22056,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
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const [sourceType, targetType] = getTypeNamesForErrorDisplay(source, target);
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let generalizedSource = source;
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let generalizedSourceType = sourceType;
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-
+
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// Don't generalize on 'never' - we really want the original type
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// to be displayed for use-cases like 'assertNever'.
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if (!(target.flags & TypeFlags.Never) && isLiteralType(source) && !typeCouldHaveTopLevelSingletonTypes(target)) {
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