♻️ refactor(profile): Write better code and add analysis script.

Author: make-github-pseudonymous-again

_profile/analyze.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env sh
+
+TIMESTAMP="$(date '+%Y-%m-%dT%H:%M:%S')"
+
+logfile="$(printf '%s-' "$@")${TIMESTAMP}-analyze-v8.log"
+
+node --prof --log-all --logfile="$logfile" "$@"

_profile/package.json

@@ -3,6 +3,7 @@
   "scripts": {
     "build-cmd": "babel --delete-dir-on-start",
     "build:profile": "yarn build-cmd --env-name profile --out-dir dist/profile ../src",
+    "analyze": "sh analyze.sh",
     "profile": "sh profile.sh"
   },
   "dependencies": {

_profile/push.js

@@ -1,19 +1,9 @@
-console.time('prepare');
-require('regenerator-runtime/runtime');
-const ArgumentParser = require('argparse').ArgumentParser;
-const empty = require('..').empty;
+import 'regenerator-runtime/runtime.js';
+import {ArgumentParser} from 'argparse';
+import {FAST_COUNTER as COUNTER} from '../test/src/_fixtures.js';
+import {empty} from './dist/profile/index.js';
 
-const COUNTER = {
-	plus(a, b) {
-		return a + b;
-	},
-	measure(_x) {
-		return 1;
-	},
-	zero() {
-		return 0;
-	},
-};
+console.time('prepare');
 
 const parser = new ArgumentParser();
 parser.add_argument('M', {default: 1000, nargs: '?'});
@@ -30,7 +20,7 @@ console.timeEnd('prepare');
 console.time('push');
 for (let k = 0; k < N; ++k) {
 	let x = t;
-	for (let i = 0; i < M; ++i) x = x.push();
+	for (let i = 0; i < M; ++i) x = x.push(i);
 }
 
 console.timeEnd('push');