From 9cd2af91f0fe01aa644166ac7b19b958a6ce5081 Mon Sep 17 00:00:00 2001
From: Pavel Tisnovsky <ptisnovs@redhat.com>
Date: Fri, 10 Jul 2020 12:50:16 +0200
Subject: [PATCH] Example #9: Contains method for user struct stream

---
 .../lazy_streams/09_contains_user_structs.go  | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 lesson7/lazy_streams/09_contains_user_structs.go

diff --git a/lesson7/lazy_streams/09_contains_user_structs.go b/lesson7/lazy_streams/09_contains_user_structs.go
new file mode 100644
index 0000000..64229bd
--- /dev/null
+++ b/lesson7/lazy_streams/09_contains_user_structs.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"github.com/wesovilabs/koazee"
+)
+
+type User struct {
+	id      uint32
+	name    string
+	surname string
+}
+
+func main() {
+	var users = []User{
+		User{
+			id:      1,
+			name:    "Pepek",
+			surname: "Vyskoč"},
+		User{
+			id:      2,
+			name:    "Pepek",
+			surname: "Vyskoč"},
+		User{
+			id:      3,
+			name:    "Josef",
+			surname: "Vyskočil"},
+	}
+	fmt.Println(users)
+
+	stream := koazee.StreamOf(users)
+
+	p1, _ := stream.Contains(User{3, "Josef", "Vyskočil"})
+	fmt.Printf("contains? %v\n", p1)
+
+	p2, _ := stream.Contains(User{4, "Josef", "Vyskočil"})
+	fmt.Printf("contains? %v\n", p2)
+}