substack-escaping-to-heap.go

package main

import (
	"github.com/pkg/profile"
)

type UserData struct {
	ID   int
	Name string
}

func createObject() *UserData {
	user := UserData{ID: 1, Name: "John Doe"}
	return &user // Returning a pointer to the local variable
}

func main() {
	defer profile.Start(profile.TraceProfile, profile.ProfilePath(".")).Stop()

	var user *UserData
	for i := 0; i < 1000000; i++ {
		// Creating objects inside a loop
		user = createObject()
		_ = user // Ignoring the variable to simulate escape
	}
}