Core structure

internal/domain64/domain64.go

@@ -1,5 +1,32 @@
 package domain64
 
-func ReturnsTrue() bool {
-	return true
+type Domain64 struct {
+	// The TLD is FF
+	TLD uint8
+	// The Domain is FFFFFF, so the uint16 is the closest we'll get
+	Domain uint16
+	// Subdomains are FF
+	Subdomain uint8
+	// Paths are, again, FFFFFF
+	Path uint16
 }
+
+/*
+```mermaid
+packet-beta
+0-7: "FF | TLD"
+8-31: "FFFFFF | Domain"
+32-39: "FF | Subdomain"
+40-63: "FFFFFF | Path"
+```
+*/
+func (d64 *Domain64) AsInt64() int64 {
+	var result int64 = 0
+	result = result | (int64(d64.TLD) << (64 - 8))
+	result = result | (int64(d64.Domain) << (64 - (8 + 24)))
+	result = result | (int64(d64.Subdomain) << (64 - (8 + 24 + 8)))
+	result = result | (int64(d64.Path) << (64 - (8 + 24 + 8 + 24)))
+	return result
+}
+
+// https://gobyexample.com/testing-and-benchmarking