From 046649855fbc552ae36e4c8e1536c1ba3bab5eb3 Mon Sep 17 00:00:00 2001
From: Marten Seemann <martenseemann@gmail.com>
Date: Sun, 19 Dec 2021 17:04:41 +0400
Subject: [PATCH] remove the addr package

---
 p2p/host/peerstore/addr/addrsrcs.go      | 70 ---------------------
 p2p/host/peerstore/addr/addrsrcs_test.go | 78 ------------------------
 2 files changed, 148 deletions(-)
 delete mode 100644 p2p/host/peerstore/addr/addrsrcs.go
 delete mode 100644 p2p/host/peerstore/addr/addrsrcs_test.go

diff --git a/p2p/host/peerstore/addr/addrsrcs.go b/p2p/host/peerstore/addr/addrsrcs.go
deleted file mode 100644
index 9be78d5ccc..0000000000
--- a/p2p/host/peerstore/addr/addrsrcs.go
+++ /dev/null
@@ -1,70 +0,0 @@
-// Package addr provides utility functions to handle peer addresses.
-package addr
-
-import (
-	ma "github.com/multiformats/go-multiaddr"
-)
-
-// AddrSource is a source of addresses. It allows clients to retrieve
-// a set of addresses at a last possible moment in time. It is used
-// to query a set of addresses that may change over time, as a result
-// of the network changing interfaces or mappings.
-type Source interface {
-	Addrs() []ma.Multiaddr
-}
-
-// CombineSources returns a new AddrSource which is the
-// concatenation of all input AddrSources:
-//
-//   combined := CombinedSources(a, b)
-//   combined.Addrs() // append(a.Addrs(), b.Addrs()...)
-//
-func CombineSources(srcs ...Source) Source {
-	return combinedAS(srcs)
-}
-
-type combinedAS []Source
-
-func (cas combinedAS) Addrs() []ma.Multiaddr {
-	var addrs []ma.Multiaddr
-	for _, s := range cas {
-		addrs = append(addrs, s.Addrs()...)
-	}
-	return addrs
-}
-
-// UniqueSource returns a new AddrSource which omits duplicate
-// addresses from the inputs:
-//
-//   unique := UniqueSource(a, b)
-//   unique.Addrs() // append(a.Addrs(), b.Addrs()...)
-//                  // but only adds each addr once.
-//
-func UniqueSource(srcs ...Source) Source {
-	return uniqueAS(srcs)
-}
-
-type uniqueAS []Source
-
-func (uas uniqueAS) Addrs() []ma.Multiaddr {
-	seen := make(map[string]struct{})
-	var addrs []ma.Multiaddr
-	for _, s := range uas {
-		for _, a := range s.Addrs() {
-			s := a.String()
-			if _, found := seen[s]; !found {
-				addrs = append(addrs, a)
-				seen[s] = struct{}{}
-			}
-		}
-	}
-	return addrs
-}
-
-// Slice is a simple slice of addresses that implements
-// the AddrSource interface.
-type Slice []ma.Multiaddr
-
-func (as Slice) Addrs() []ma.Multiaddr {
-	return as
-}
diff --git a/p2p/host/peerstore/addr/addrsrcs_test.go b/p2p/host/peerstore/addr/addrsrcs_test.go
deleted file mode 100644
index 06bea07bce..0000000000
--- a/p2p/host/peerstore/addr/addrsrcs_test.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package addr
-
-import (
-	"fmt"
-	"testing"
-
-	ma "github.com/multiformats/go-multiaddr"
-)
-
-func newAddrOrFatal(t *testing.T, s string) ma.Multiaddr {
-	a, err := ma.NewMultiaddr(s)
-	if err != nil {
-		t.Fatal("error parsing multiaddr", err)
-	}
-	return a
-}
-
-func newAddrs(t *testing.T, n int) []ma.Multiaddr {
-	addrs := make([]ma.Multiaddr, n)
-	for i := 0; i < n; i++ {
-		s := fmt.Sprintf("/ip4/1.2.3.4/tcp/%d", i)
-		addrs[i] = newAddrOrFatal(t, s)
-	}
-	return addrs
-}
-
-func addrSetsSame(a, b []ma.Multiaddr) bool {
-	if len(a) != len(b) {
-		return false
-	}
-	for i, aa := range a {
-		bb := b[i]
-		if !aa.Equal(bb) {
-			return false
-		}
-	}
-	return true
-}
-
-func addrSourcesSame(a, b Source) bool {
-	return addrSetsSame(a.Addrs(), b.Addrs())
-}
-
-func TestAddrCombine(t *testing.T) {
-	addrs := newAddrs(t, 30)
-	a := Slice(addrs[0:10])
-	b := Slice(addrs[10:20])
-	c := Slice(addrs[20:30])
-	d := CombineSources(a, b, c)
-	if !addrSetsSame(addrs, d.Addrs()) {
-		t.Error("addrs differ")
-	}
-	if !addrSourcesSame(Slice(addrs), d) {
-		t.Error("addrs differ")
-	}
-}
-
-func TestAddrUnique(t *testing.T) {
-
-	addrs := newAddrs(t, 40)
-	a := Slice(addrs[0:20])
-	b := Slice(addrs[10:30])
-	c := Slice(addrs[20:40])
-	d := CombineSources(a, b, c)
-	e := UniqueSource(a, b, c)
-	if addrSetsSame(addrs, d.Addrs()) {
-		t.Error("addrs same")
-	}
-	if addrSourcesSame(Slice(addrs), d) {
-		t.Error("addrs same")
-	}
-	if !addrSetsSame(addrs, e.Addrs()) {
-		t.Error("addrs differ", addrs, "\n\n", e.Addrs(), "\n\n")
-	}
-	if !addrSourcesSame(Slice(addrs), e) {
-		t.Error("addrs differ", addrs, "\n\n", e.Addrs(), "\n\n")
-	}
-}