From a2513b3633b5e1972c032132fc1ad986e072ecb1 Mon Sep 17 00:00:00 2001
From: Vinicius Silva <me@silvavinicius.com.br>
Date: Mon, 22 Jan 2024 22:36:12 -0300
Subject: [PATCH] Casting interface implemented

---
 16_interfaces/casting.v    | 41 ++++++++++++++++++++++++++++++++++++++
 16_interfaces/interfaces.v |  2 +-
 2 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 16_interfaces/casting.v

diff --git a/16_interfaces/casting.v b/16_interfaces/casting.v
new file mode 100644
index 0000000..7b4c443
--- /dev/null
+++ b/16_interfaces/casting.v
@@ -0,0 +1,41 @@
+
+
+struct Dog{
+	breed string
+	speak() string
+}
+
+fn (d Dog) speak() string {
+	println('Woof')
+}
+
+
+struct Cat{
+	breed string
+	speak() string
+}
+
+fn (c Cat) speak() string{
+	println('Meow')
+}
+
+interface Something{}
+
+
+fn announce(s Something){
+	if s is Dog {
+		println('a ${s.breed] dog')
+	}else if s is Cat{
+		println('a cat speaks ${s.speak()}')
+	}else {
+		println('something else')
+	}
+}
+
+fn main(){
+	dog := Dog{'Leonberger'}
+	cat := Cat{'Siamese'}
+
+	announce(dog)
+	announce(cat)
+}
\ No newline at end of file
diff --git a/16_interfaces/interfaces.v b/16_interfaces/interfaces.v
index 9f931bc..4f173de 100644
--- a/16_interfaces/interfaces.v
+++ b/16_interfaces/interfaces.v
@@ -1,4 +1,4 @@
-module main
+
 
 interface Foo{
 	write(string) string