Fix removeReflection when no symbol is registered

Resolves #2496

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 ## Bug Fixes
 
+-   Fixed crash when `--excludeNotDocumented` was used and the project contained a reference to a removed signature, #2496.
 -   Fixed an issue where a namespace would not be created for merged function-namespaces which are declared as variables, #2478.
 -   A class which implements itself will no longer cause a crash when rendering HTML, #2495.
 -   Variable functions which have construct signatures will no longer be converted as functions, ignoring the construct signatures.

src/lib/models/reflections/project.ts

@@ -236,17 +236,17 @@ export class ProjectReflection extends ContainerReflection {
         this.reflectionChildren.delete(reflection.id);
 
         // Remove references from the TS symbol to this reflection.
-        const symbol = this.reflectionIdToSymbolMap.get(reflection.id);
-        if (symbol) {
-            const id = new ReflectionSymbolId(symbol);
-            const saved = this.symbolToReflectionIdMap.get(id);
+        const symbolId = this.reflectionIdToSymbolIdMap.get(reflection.id);
+        if (symbolId) {
+            const saved = this.symbolToReflectionIdMap.get(symbolId);
             if (saved === reflection.id) {
-                this.symbolToReflectionIdMap.delete(id);
+                this.symbolToReflectionIdMap.delete(symbolId);
             } else if (typeof saved === "object") {
                 removeIfPresent(saved, reflection.id);
             }
         }
 
+        this.reflectionIdToSymbolMap.delete(reflection.id);
         this.reflectionIdToSymbolIdMap.delete(reflection.id);
         delete this.reflections[reflection.id];
     }

src/test/converter2/issues/gh2496.ts

@@ -0,0 +1,6 @@
+export function f() {
+    return 1;
+}
+
+/** doc */
+export type ReturnOfF = ReturnType<typeof f>;

src/test/issues.c2.test.ts

@@ -1383,4 +1383,9 @@ describe("Issue Tests", () => {
         const context = theme.getRenderContext(page);
         context.hierarchyTemplate(page);
     });
+
+    it("Correctly cleans up references to functions #2496", () => {
+        app.options.setValue("excludeNotDocumented", true);
+        convert();
+    });
 });