From 40a590a28f7311bc3f88847edfe9e67534f1b44b Mon Sep 17 00:00:00 2001
From: Vinicius Silva <me@silvavinicius.com.br>
Date: Sat, 30 Dec 2023 17:57:10 -0300
Subject: [PATCH] 13_functions direcory created

---
 13_functions/anonynous_higher.v | 39 ++++++++++++++++++++++
 13_functions/closures.v         | 58 +++++++++++++++++++++++++++++++++
 13_functions/references.v       | 22 +++++++++++++
 3 files changed, 119 insertions(+)
 create mode 100644 13_functions/anonynous_higher.v
 create mode 100644 13_functions/closures.v
 create mode 100644 13_functions/references.v

diff --git a/13_functions/anonynous_higher.v b/13_functions/anonynous_higher.v
new file mode 100644
index 0000000..1341bc8
--- /dev/null
+++ b/13_functions/anonynous_higher.v
@@ -0,0 +1,39 @@
+fn sqrt(n int) int{
+	return n*n
+}
+
+fn cube(n int) int{
+	return n*n*n
+}
+
+fn run(value int, op fn(int) int) int{
+	return op(value)
+}
+
+pub fn main(){
+	
+	println(run(5, sqrt))
+
+	double_fn := fn(n int) int {
+		return n + n
+	}
+
+	println(5, double_fn)
+
+	res := run(5, fn(n int) int{
+		return n+n
+	})
+
+	println(res)
+
+	fns := [sqrt, cube]
+
+	println(fns[0](10))
+	fns_map := {
+		'sqrt' : sqrt
+		'cube' : cube
+	}
+
+	println(fns_map['cube'](2))
+
+}
\ No newline at end of file
diff --git a/13_functions/closures.v b/13_functions/closures.v
new file mode 100644
index 0000000..cf8247a
--- /dev/null
+++ b/13_functions/closures.v
@@ -0,0 +1,58 @@
+pub fn main(){
+	
+	my_int := 1
+
+	my_closure := fn[my_int] (){
+		println(my_int)
+	}
+
+	my_closure()
+
+	// ====================================================== //
+
+	mut i := 1
+
+	func := fn[i] () int {
+		return i
+	}
+
+	println(func() == 1)
+	i = 1
+	println(func() == 1)
+
+	// ====================================================== //
+
+	c := new_counter()
+
+	println(c())
+	println(c())
+	println(c())
+
+	mut i2 := 0
+	mut ref := &i2
+	
+	println_counter := fn[ref] ()
+	{
+		println(*ref)
+	}
+
+	println_counter()
+	i2 = 10
+	println_counter()
+
+	f(dump(100),dump(200),dump(300))
+
+}
+
+fn f(a1 int, a2 int, a3 int){
+	dump(a1+a2+a3)
+}
+
+fn new_counter() fn() int{
+	mut i := 0
+
+	return fn[mut i] () int{
+		i++
+		return i
+	}
+}
\ No newline at end of file
diff --git a/13_functions/references.v b/13_functions/references.v
new file mode 100644
index 0000000..b297e0f
--- /dev/null
+++ b/13_functions/references.v
@@ -0,0 +1,22 @@
+struct Foo{
+	abc int
+}
+
+fn (foo Foo) bar_method(){}
+
+fn (foo &Foo) bar(){
+	println(foo.abc)
+} 
+
+fn bar_function(foo Foo){}
+
+
+struct Node[T]{
+	val   T
+	left  &Node[T]
+	right &Node[T]
+}
+
+pub fn main(){
+
+}
\ No newline at end of file