Structs code file implemented

11_structs/embedded_structs.v

@@ -0,0 +1,33 @@
+struct Size{
+mut:
+	width int
+	height int
+}
+
+fn (s &Size) area() int{
+	return s.width * s.height
+}
+
+struct Button{
+	Size
+	title string
+}
+
+pub fn main(){
+	mut button := Button{title: 'Click me', height: 2}
+	button.width = 3
+
+	assert button.area() == 6
+	assert button.Size.area() == 6
+	println(button)
+
+	mut button1 := Button{Size: Size{
+		width : 34
+		height: 10
+	}}
+
+	println(button1)
+
+	button1.Size = Size{width: 2, height: 9}
+	println(button1)
+}

11_structs/methods_structs.v

@@ -0,0 +1,18 @@
+struct User{
+	age int
+}
+
+fn (u User) can_register() bool{
+	return u.age > 16
+}
+
+pub fn main(){
+	
+	user1 := User{age: 10}
+
+	println(user1.can_register())
+
+	user2 := User{age: 20}
+
+	println(user2.can_register())
+}

11_structs/sample/noinit_structs.v

@@ -0,0 +1,8 @@
+import sample
+
+fn main(){
+	//mut into1 := sample.Information{data: 'Sample'}
+	//println(into1)
+	info := sample.new_information('Sample information')!
+	println(info)
+}

11_structs/sample/sample.v

@@ -0,0 +1,18 @@
+module sample
+
+@[noinit]
+pub struct Information{
+	pub:
+		data string
+}
+
+pub fn new_information(data string) !Information{
+
+	if data.len == 0 || data.len > 100{
+		return error('data must be between 1 and 100 characters')
+	}else{
+		return Information{
+			data: data
+		}
+	}
+}