From 669bc2cc310bab7446f2392573370322bf974638 Mon Sep 17 00:00:00 2001
From: Victor H Folchini Sebben <victorhfsebben@protonmail.com>
Date: Wed, 6 Nov 2024 22:20:24 -0300
Subject: [PATCH 1/2] Make return types compatible with interface

---
 src/Functional/Sequences/ExponentialSequence.php | 10 +++++-----
 src/Functional/Sequences/LinearSequence.php      | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/Functional/Sequences/ExponentialSequence.php b/src/Functional/Sequences/ExponentialSequence.php
index 0a8b8d47..be414d9e 100644
--- a/src/Functional/Sequences/ExponentialSequence.php
+++ b/src/Functional/Sequences/ExponentialSequence.php
@@ -38,28 +38,28 @@ public function __construct($start, $percentage)
         $this->percentage = $percentage;
     }
 
-    public function current()
+    public function current(): mixed
     {
         return $this->value;
     }
 
-    public function next()
+    public function next(): void
     {
         $this->value = (int) \round(\pow($this->start * (1 + $this->percentage / 100), $this->times));
         $this->times++;
     }
 
-    public function key()
+    public function key(): mixed
     {
         return null;
     }
 
-    public function valid()
+    public function valid(): bool
     {
         return true;
     }
 
-    public function rewind()
+    public function rewind(): void
     {
         $this->times = 1;
         $this->value = $this->start;
diff --git a/src/Functional/Sequences/LinearSequence.php b/src/Functional/Sequences/LinearSequence.php
index ad99dfbb..9947ff02 100644
--- a/src/Functional/Sequences/LinearSequence.php
+++ b/src/Functional/Sequences/LinearSequence.php
@@ -34,27 +34,27 @@ public function __construct($start, $amount)
         $this->amount = $amount;
     }
 
-    public function current()
+    public function current(): mixed
     {
         return $this->value;
     }
 
-    public function next()
+    public function next(): void
     {
         $this->value += $this->amount;
     }
 
-    public function key()
+    public function key(): mixed
     {
         return 0;
     }
 
-    public function valid()
+    public function valid(): bool
     {
         return true;
     }
 
-    public function rewind()
+    public function rewind(): void
     {
         $this->value = $this->start;
     }

From 32c78f960f38e6d1975fabf50c822d7bcef4b608 Mon Sep 17 00:00:00 2001
From: Victor H Folchini Sebben <victorhfsebben@protonmail.com>
Date: Wed, 6 Nov 2024 22:20:38 -0300
Subject: [PATCH 2/2] Avoid implicit conversion to int

---
 src/Functional/Group.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Functional/Group.php b/src/Functional/Group.php
index af2ed3a1..3fe2a210 100644
--- a/src/Functional/Group.php
+++ b/src/Functional/Group.php
@@ -32,6 +32,12 @@ function group($collection, callable $callback)
 
         InvalidArgumentException::assertValidArrayKey($groupKey, __FUNCTION__);
 
+        // Avoid implicit conversion, since float numbers cannot be used as
+        // array keys:
+        if (is_numeric($groupKey)) {
+            $groupKey = intval($groupKey);
+        }
+
         if (!isset($groups[$groupKey])) {
             $groups[$groupKey] = [];
         }