Fix tsc errors in src and keep demo errors the same as before

docs/tsconfig.json

@@ -4,5 +4,6 @@
     "jsx": "react-jsx",
     "jsxImportSource": "preact",
     "module": "esnext"
-  }
+  },
+  "exclude": ["node_modules", "dist"]
 }

mangle.json

@@ -5,7 +5,11 @@
   },
   "minify": {
     "mangle": {
-      "reserved": ["useSignal", "useComputed", "useSignalEffect"],
+      "reserved": [
+        "useSignal",
+        "useComputed",
+        "useSignalEffect"
+      ],
       "keep_classnames": true,
       "properties": {
         "regex": "^_[^_]",

packages/core/src/index.ts

@@ -669,22 +669,23 @@ function endEffect(this: Effect, prevContext?: Computed | Effect) {
 	endBatch();
 }
 
+type EffectCleanup = () => unknown;
 declare class Effect {
-	_compute?: () => void | (() => void);
-	_cleanup?: () => void;
+	_compute?: () => unknown | EffectCleanup;
+	_cleanup?: () => unknown;
 	_sources?: Node;
 	_nextBatchedEffect?: Effect;
 	_flags: number;
 
-	constructor(compute: () => void | (() => void));
+	constructor(compute: () => unknown | EffectCleanup);
 
 	_callback(): void;
 	_start(): () => void;
 	_notify(): void;
 	_dispose(): void;
 }
 
-function Effect(this: Effect, compute: () => void | (() => void)) {
+function Effect(this: Effect, compute: () => unknown | EffectCleanup) {
 	this._compute = compute;
 	this._cleanup = undefined;
 	this._sources = undefined;
@@ -700,7 +701,7 @@ Effect.prototype._callback = function () {
 
 		const cleanup = this._compute();
 		if (typeof cleanup === "function") {
-			this._cleanup = cleanup;
+			this._cleanup = cleanup as EffectCleanup;
 		}
 	} finally {
 		finish();
@@ -738,7 +739,7 @@ Effect.prototype._dispose = function () {
 	}
 };
 
-function effect(compute: () => void | (() => void)): () => void {
+function effect(compute: () => unknown | EffectCleanup): () => void {
 	const effect = new Effect(compute);
 	try {
 		effect._callback();

packages/core/test/signal.test.tsx

@@ -873,7 +873,7 @@ describe("computed()", () => {
 	});
 
 	it("should disallow setting signal's value", () => {
-		const v: number = 123;
+		const v = 123;
 		const a: Signal = signal(v);
 		const c: Signal = computed(() => a.value++);
 

packages/react/test/shared/utils.ts

@@ -112,7 +112,8 @@ export function checkConsoleErrorLogs(): void {
 	if (errorSpy.called) {
 		let message: string;
 		if (errorSpy.firstCall.args[0].toString().includes("%s")) {
-			message = consoleFormat(...errorSpy.firstCall.args);
+			const firstArg = errorSpy.firstCall.args[0];
+			message = consoleFormat(firstArg, ...errorSpy.firstCall.args.slice(1));
 		} else {
 			message = errorSpy.firstCall.args.join(" ");
 		}

tsconfig.json

@@ -17,10 +17,5 @@
       "@preact/signals-react": ["./packages/react/src/index.ts"]
     }
   },
-  "include": [
-    "packages/*/src/**/*",
-    "packages/*/test/**/*",
-    "test/**/*",
-    "global.d.ts"
-  ]
+  "exclude": ["docs", "packages/*/dist/**"]
 }