From 4357f7806b3793d99a4927fd0c3d7802463f0eaa Mon Sep 17 00:00:00 2001
From: Bas Schoenmaeckers <b.schoenmaeckers@zandersgroup.com>
Date: Wed, 13 May 2026 14:16:58 +0200
Subject: [PATCH] Add object protocol methods to c-api

---
 crates/capi/src/abstract_.rs | 52 ++++++++++++++++++++++++++++++++++++
 crates/capi/src/lib.rs       |  1 +
 2 files changed, 53 insertions(+)
 create mode 100644 crates/capi/src/abstract_.rs

diff --git a/crates/capi/src/abstract_.rs b/crates/capi/src/abstract_.rs
new file mode 100644
index 0000000000..854b3e000b
--- /dev/null
+++ b/crates/capi/src/abstract_.rs
@@ -0,0 +1,52 @@
+use crate::{PyObject, pystate::with_vm};
+use core::ffi::c_int;
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn PyObject_GetItem(obj: *mut PyObject, key: *mut PyObject) -> *mut PyObject {
+    with_vm(|vm| {
+        let obj = unsafe { &*obj };
+        let key = unsafe { &*key };
+        obj.get_item(key, vm)
+    })
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn PyObject_SetItem(
+    obj: *mut PyObject,
+    key: *mut PyObject,
+    value: *mut PyObject,
+) -> c_int {
+    with_vm(|vm| {
+        let obj = unsafe { &*obj };
+        let key = unsafe { &*key };
+        let value = unsafe { &*value }.to_owned();
+        obj.set_item(key, value, vm)
+    })
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn PyObject_DelItem(obj: *mut PyObject, key: *mut PyObject) -> c_int {
+    with_vm(|vm| {
+        let obj = unsafe { &*obj };
+        let key = unsafe { &*key };
+        obj.del_item(key, vm)
+    })
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn PyObject_IsSubclass(derived: *mut PyObject, cls: *mut PyObject) -> c_int {
+    with_vm(|vm| {
+        let derived = unsafe { &*derived };
+        let cls = unsafe { &*cls };
+        derived.is_subclass(cls, vm)
+    })
+}
+
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn PyObject_IsInstance(inst: *mut PyObject, cls: *mut PyObject) -> c_int {
+    with_vm(|vm| {
+        let inst = unsafe { &*inst };
+        let cls = unsafe { &*cls };
+        inst.is_instance(cls, vm)
+    })
+}
diff --git a/crates/capi/src/lib.rs b/crates/capi/src/lib.rs
index 40546d69d3..ebabc1521e 100644
--- a/crates/capi/src/lib.rs
+++ b/crates/capi/src/lib.rs
@@ -8,6 +8,7 @@ use std::sync::MutexGuard;
 
 extern crate alloc;
 
+pub mod abstract_;
 pub mod import;
 pub mod object;
 pub mod pyerrors;