Host FlexSearch

paige/node_modules/flexsearch/src/worker/handler.js

@@ -0,0 +1,51 @@
+import Index from "../index.js";
+
+export default function(data) {
+
+    data = data["data"];
+
+    /** @type Index */
+    const index = self["_index"];
+    const args = data["args"];
+    const task = data["task"];
+
+    switch(task){
+
+        case "init":
+
+            const options = data["options"] || {};
+            const factory = data["factory"];
+            const encode = options["encode"];
+
+            options["cache"] = false;
+
+            if(encode && (encode.indexOf("function") === 0)){
+
+                options["encode"] = Function("return " + encode)();
+            }
+
+            if(factory){
+
+                // export the FlexSearch global payload to "self"
+                Function("return " + factory)()(self);
+
+                /** @type Index */
+                self["_index"] = new self["FlexSearch"]["Index"](options);
+
+                // destroy the exported payload
+                delete self["FlexSearch"];
+            }
+            else{
+
+                self["_index"] = new Index(options);
+            }
+
+            break;
+
+        default:
+
+            const id = data["id"];
+            const message = index[task].apply(index, args);
+            postMessage(task === "search" ? { "id": id, "msg": message } : { "id": id });
+    }
+};