From c49d038540f8eb36bf727aa27cd64e77118ef8df Mon Sep 17 00:00:00 2001
From: ffranr <robyn@lightning.engineering>
Date: Fri, 25 Oct 2024 16:29:16 +0100
Subject: [PATCH 1/2] fn: add OptionFromPtr function

Add a function `OptionFromPtr` that constructs an `Option` from a
pointer. The function signature is: `OptionFromPtr : *A -> Option[A]`.

This utility has proven useful in the taproot-assets project.
---
 fn/option.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fn/option.go b/fn/option.go
index 797f3a0ff0..60e64cf3c5 100644
--- a/fn/option.go
+++ b/fn/option.go
@@ -26,6 +26,17 @@ func None[A any]() Option[A] {
 	return Option[A]{}
 }
 
+// OptionFromPtr constructs an option from a pointer.
+//
+// OptionFromPtr : *A -> Option[A].
+func OptionFromPtr[A any](a *A) Option[A] {
+	if a == nil {
+		return None[A]()
+	}
+
+	return Some[A](*a)
+}
+
 // ElimOption is the universal Option eliminator. It can be used to safely
 // handle all possible values inside the Option by supplying two continuations.
 //

From 71298f7614368e1aecdbb2f5cb1993cec6bf1cff Mon Sep 17 00:00:00 2001
From: ffranr <robyn@lightning.engineering>
Date: Fri, 25 Oct 2024 16:30:59 +0100
Subject: [PATCH 2/2] fn: fix documentation comment for Option

Remove the type generic from the `Option` type struct in the doc
comment.
---
 fn/option.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fn/option.go b/fn/option.go
index 60e64cf3c5..f1a6c858c6 100644
--- a/fn/option.go
+++ b/fn/option.go
@@ -2,8 +2,8 @@ package fn
 
 import "testing"
 
-// Option[A] represents a value which may or may not be there. This is very
-// often preferable to nil-able pointers.
+// Option represents a value which may or may not be there. This is very often
+// preferable to nil-able pointers.
 type Option[A any] struct {
 	isSome bool
 	some   A