#87 Allow static Macros

Money and Currency override the Macroable __callStatic
method, effectively disabling static macros.

Add a check in, if the statically called method exists
as a macro, then call the macro instead.

Author: Luke-Shepp

src/Currency.php

@@ -182,7 +182,9 @@
  */
 class Currency implements Arrayable, Castable, Jsonable, JsonSerializable, Renderable
 {
-    use Macroable;
+    use Macroable {
+        __callStatic as protected macroableCallStatic;
+    }
 
     protected string $currency;
 
@@ -235,6 +237,10 @@ public function __construct(string $currency)
 
     public static function __callStatic(string $method, array $arguments): Currency
     {
+        if (static::hasMacro($method)) {
+            return static::macroableCallStatic($method, $arguments);
+        }
+
         return new self($method);
     }
 

src/Money.php

@@ -186,7 +186,9 @@
  */
 class Money implements Arrayable, Castable, Jsonable, JsonSerializable, Renderable
 {
-    use Macroable;
+    use Macroable {
+        __callStatic as protected macroableCallStatic;
+    }
 
     const ROUND_HALF_UP = PHP_ROUND_HALF_UP;
 
@@ -283,6 +285,10 @@ protected function convertAmount(int|float $amount, bool $convert = false): int|
 
     public static function __callStatic(string $method, array $arguments): Money
     {
+        if (static::hasMacro($method)) {
+            return static::macroableCallStatic($method, $arguments);
+        }
+
         $convert = isset($arguments[1]) && is_bool($arguments[1]) && $arguments[1];
 
         return new self($arguments[0], new Currency($method), $convert);

tests/CurrencyTest.php

@@ -88,4 +88,11 @@ public function testResetCurrencies()
         $this->assertEmpty(Currency::getCurrencies());
         Currency::setCurrencies($currencies);
     }
+
+    public function testStaticMacro()
+    {
+        Currency::macro('testMacro', fn () => Currency::EUR());
+
+        $this->assertEquals(Currency::EUR(), Currency::testMacro());
+    }
 }

tests/MoneyTest.php

@@ -411,4 +411,11 @@ public function testMakingMutable()
         $this->assertTrue($money->isImmutable());
         $this->assertFalse($money->mutable()->isImmutable());
     }
+
+    public function testStaticMacro()
+    {
+        Money::macro('testMacro', fn () => Money::USD(1099));
+
+        $this->assertEquals(Money::USD(1099), Money::testMacro());
+    }
 }