Initial boiler plate project

node_modules/next/dist/esm/client/tracing/tracer.js

@@ -0,0 +1,44 @@
+import mitt from "../../shared/lib/mitt";
+class Span {
+    end(endTime) {
+        if (this.state.state === "ended") {
+            throw new Error("Span has already ended");
+        }
+        this.state = {
+            state: "ended",
+            endTime: endTime != null ? endTime : Date.now()
+        };
+        this.onSpanEnd(this);
+    }
+    constructor(name, options, onSpanEnd){
+        this.name = name;
+        var _options_attributes;
+        this.attributes = (_options_attributes = options.attributes) != null ? _options_attributes : {};
+        var _options_startTime;
+        this.startTime = (_options_startTime = options.startTime) != null ? _options_startTime : Date.now();
+        this.onSpanEnd = onSpanEnd;
+        this.state = {
+            state: "inprogress"
+        };
+    }
+}
+class Tracer {
+    startSpan(name, options) {
+        return new Span(name, options, this.handleSpanEnd);
+    }
+    onSpanEnd(cb) {
+        this._emitter.on("spanend", cb);
+        return ()=>{
+            this._emitter.off("spanend", cb);
+        };
+    }
+    constructor(){
+        this._emitter = mitt();
+        this.handleSpanEnd = (span)=>{
+            this._emitter.emit("spanend", span);
+        };
+    }
+}
+export default new Tracer();
+
+//# sourceMappingURL=tracer.js.map