create provider util

demo/w3a-vue-plugin/src/lib/createProvider.ts

@@ -0,0 +1,24 @@
+import { inject, provide } from "vue";
+
+export default function createProvider(key, composable) {
+  const keySymbol = typeof key === "symbol" ? key : Symbol(key);
+
+  const useContext = () => {
+    const context = inject(keySymbol);
+
+    if (!context) {
+      throw new Error(`Attempted to access context outside of provider for ${keySymbol.toString()}`);
+    }
+
+    return context;
+  };
+
+  return [
+    (...args) => {
+      const context = composable(...args);
+      provide(keySymbol, context);
+      return context;
+    },
+    useContext,
+  ];
+}