Mark createState getters as tracked scopes. Fixes #18.

src/rules/reactivity.ts

@@ -741,6 +741,16 @@ const rule: TSESLint.RuleModule<MessageIds, []> = {
             // Since dependencies are known, function can be async
             pushTrackedScope(node.arguments[1], "called-function");
           }
+        } else if (matchImport("createStore", callee.name) && arg0.type === "ObjectExpression") {
+          for (const property of arg0.properties) {
+            if (
+              property.type === "Property" &&
+              property.kind === "get" &&
+              isFunctionNode(property.value)
+            ) {
+              pushTrackedScope(property.value, "function");
+            }
+          }
         } else if (matchImport("runWithOwner", callee.name)) {
           // runWithOwner(owner, fn) only creates a tracked scope if `owner =
           // getOwner()` runs in a tracked scope. If owner is a variable,

test/rules/reactivity.test.ts

@@ -163,6 +163,14 @@ export const cases = run("reactivity", rule, {
       const [count, setCount] = useSignal(props.initialCount);
       return <div>{count()}</div>;
     }`,
+    // Store getters
+    `const [state, setState] = createStore({
+      firstName: 'Will',
+      lastName: 'Smith',
+      get fullName() {
+        return state.firstName + " " + state.lastName;
+      }
+    })`,
   ],
   invalid: [
     // Untracked signals
@@ -372,6 +380,15 @@ export const cases = run("reactivity", rule, {
       errors: [{ messageId: "badUnnamedDerivedSignal", line: 5 }],
     },
     // Async tracking scopes
+    {
+      code: `
+      const [count, setCount] = createSignal(0);
+      createEffect(async () => {
+        await Promise.resolve();
+        console.log(count());
+      });`,
+      errors: [{ messageId: "noAsyncTrackedScope", line: 3 }],
+    },
     {
       code: `
       const [photos, setPhotos] = createSignal([]);