From 24ef8f333ba40205cea32b33d2c9649bf89ee4ff Mon Sep 17 00:00:00 2001
From: Bengineer <blockengineer42@gmail.com>
Date: Tue, 31 Dec 2024 00:50:37 +0000
Subject: [PATCH] Support for fixed sized arrays in models #2785: Added
 introspect

---
 crates/dojo/core/src/meta/introspect.cairo | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/crates/dojo/core/src/meta/introspect.cairo b/crates/dojo/core/src/meta/introspect.cairo
index 5c88b3a9ca..c96993e648 100644
--- a/crates/dojo/core/src/meta/introspect.cairo
+++ b/crates/dojo/core/src/meta/introspect.cairo
@@ -91,6 +91,21 @@ pub impl Introspect_bool of Introspect<bool> {
     }
 }
 
+pub impl Introspect_FixedArray<T, const N: usize, +Introspect<T>> of Introspect<[T; N]> {
+    fn size() -> Option<usize> {
+        match Introspect::<T>::size() {
+            Option::Some(size) => Option::Some(size * N),
+            Option::None => Option::None
+        }
+    }
+    fn layout() -> Layout {
+        Layout::FixedArray([(Introspect::<T>::layout(), N)].span())
+    }
+    fn ty() -> Ty {
+        Ty::FixedArray([(Introspect::<T>::ty(), N)].span())
+    }
+}
+
 pub impl Introspect_u8 of Introspect<u8> {
     fn size() -> Option<usize> {
         Option::Some(1)