feat: rename profiler to performance, typeless event emitter

internal/statistics/statistics.go

@@ -2,29 +2,31 @@ package statistics
 
 import (
 	"time"
-
-	"git.maximhutz.com/max/lambda/pkg/lambda"
 )
 
-type Profiler struct {
+type Tracker struct {
 	start   time.Time
 	steps   uint64
 	Results *Results
 }
 
-func (p *Profiler) Start(*lambda.Expression) {
-	p.start = time.Now()
-	p.steps = 0
-	p.Results = nil
+func Track() *Tracker {
+	return &Tracker{}
 }
 
-func (p *Profiler) Step(*lambda.Expression) {
-	p.steps++
+func (t *Tracker) Start() {
+	t.start = time.Now()
+	t.steps = 0
+	t.Results = nil
 }
 
-func (p *Profiler) End(*lambda.Expression) {
-	p.Results = &Results{
-		StepsTaken:  p.steps,
-		TimeElapsed: uint64(time.Since(p.start).Milliseconds()),
+func (t *Tracker) Step() {
+	t.steps++
+}
+
+func (t *Tracker) End() {
+	t.Results = &Results{
+		StepsTaken:  t.steps,
+		TimeElapsed: uint64(time.Since(t.start).Milliseconds()),
 	}
 }