Adds basic telemetry

src/system/object.ts

@@ -12,4 +12,48 @@ export namespace Objects {
             yield [key, o[key]];
         }
     }
+
+    export function flatten(o: any, prefix: string = '', stringify: boolean = false): { [key: string]: any } {
+        let flattened = Object.create(null);
+        _flatten(flattened, prefix, o, stringify);
+        return flattened;
+    }
+
+    function _flatten(flattened: { [key: string]: any }, key: string, value: any, stringify: boolean = false) {
+        if (Object(value) !== value) {
+            if (stringify) {
+                if (value == null) {
+                    flattened[key] = null;
+                }
+                else if (typeof value === 'string') {
+                    flattened[key] = value;
+                }
+                else {
+                    flattened[key] = JSON.stringify(value);
+                }
+            }
+            else {
+                flattened[key] = value;
+            }
+        }
+        else if (Array.isArray(value)) {
+            let len = value.length;
+            for (let i = 0; i < len; i++) {
+                _flatten(flattened, `${key}[${i}]`, value[i], stringify);
+            }
+            if (len === 0) {
+                flattened[key] = null;
+            }
+        }
+        else {
+            let isEmpty = true;
+            for (let p in value) {
+                isEmpty = false;
+                _flatten(flattened, key ? `${key}.${p}` : p, value[p], stringify);
+            }
+            if (isEmpty && key) {
+                flattened[key] = null;
+            }
+        }
+    }
 }