Add handling for ts-expect-error on import types

See #2792

Author: Gerrit0

CHANGELOG.md

@@ -4,6 +4,11 @@ title: Changelog
 
 ## Unreleased
 
+### Bug Fixes
+
+-   Add special handling for import types with type errors discarded with
+    ts-expect-error, #2792.
+
 ## v0.27.2 (2024-11-29)
 
 ### Bug Fixes

src/lib/converter/types.ts

@@ -421,7 +421,13 @@ const importType: TypeConverter<ts.ImportTypeNode> = {
     kind: [ts.SyntaxKind.ImportType],
     convert(context, node) {
         const name = node.qualifier?.getText() ?? "__module";
-        const symbol = context.expectSymbolAtLocation(node.qualifier || node);
+        const symbol = context.getSymbolAtLocation(node.qualifier || node);
+        // #2792, we should always have a symbol here unless there is a compiler
+        // error ignored with ts-expect-error or ts-ignore.
+        if (!symbol) {
+            return new IntrinsicType("any");
+        }
+
         return ReferenceType.createSymbolReference(
             context.resolveAliasedSymbol(symbol),
             context,

src/test/converter2/issues/gh2792.ts

@@ -0,0 +1,7 @@
+export type TypeNodeType = {
+    // @ts-expect-error
+    generated: import("@typedoc/dummy").GeneratedType;
+};
+
+// @ts-expect-error
+export const typeType = null! as import("@typedoc/dummy").GeneratedType;

src/test/issues.c2.test.ts

@@ -1933,4 +1933,13 @@ describe("Issue Tests", () => {
         equal(Foo.type?.type, "reference");
         equal(Foo.type.reflection?.getFullName(), Bar.getFullName());
     });
+
+    it("#2792 handles @ts-expect-error on import types by converting to any", () => {
+        const project = convert();
+        const node = query(project, "TypeNodeType.generated");
+        equal(node.type?.toString(), "any");
+
+        const type = query(project, "typeType");
+        equal(type.type?.toString(), "any");
+    });
 });