feature/time-measurement-decorator into main

decorators.ts

@@ -0,0 +1,16 @@
+import { verbose } from "./main.ts";
+
+export function measureTime() {
+  return (target: any, propertyKey: string, descriptor: PropertyDescriptor) => {
+    const original: (...args: Array<unknown>) => unknown = descriptor.value;
+
+    const timeLabel: string = `${target.constructor.name}.${propertyKey}`;
+    descriptor.value = function (...args: Array<unknown>) {
+      verbose && console.time(timeLabel);
+      const value: unknown = original.apply(this, args);
+      verbose && console.timeEnd(timeLabel);
+
+      return value;
+    };
+  };
+}

graph.ts

@@ -1,5 +1,8 @@
 import { format } from "duration";
 import { colors } from "cliffy";
+import { measureTime } from "./decorators.ts";
+
+
 export class Graph {
   size: number;
   nodes: number[][];
@@ -32,18 +35,16 @@ export class Graph {
     this.verbose && this.logTime("Graph built in", start, end);
   }
 
+
   get subGraphs() {
     const visited = new Uint8Array(this.size);
     const subgraphs: number[][] = [];
-    const start = performance.now();
     for (let i = 0; i < this.size; i++) {
       if (!visited[i]) {
         visited[i] = 1;
         subgraphs.push(this.dfs(i, visited));
       }
     }
-    const end = performance.now();
-    this.verbose && this.logTime("Subgraphs created in", start, end);
     return subgraphs;
   }
 
@@ -70,4 +71,9 @@ export class Graph {
       )}`
     );
   }
+
+  @measureTime()
+  printTimeAfterFunction(){
+    return this.subGraphs;
+  }
 }

main.ts

@@ -22,6 +22,7 @@ while (true) {
       Select.separator("---------"),
       { name: "Size of subgraphs", value: "subgraphsSize" },
       { name: "List of subgraphs", value: "subgraphsNodes" },
+      { name: "Measure Time with decorator", value: "measureTime"}
     ],
   });
   switch (command) {
@@ -43,5 +44,7 @@ while (true) {
     case "subgraphsNodes":
       console.log(graph.subGraphs);
       break;
+    case "measureTime":
+      graph.printTimeAfterFunction();
   }
 }