Add regression tests for type inference of array![] with Gd/DynGd

Author: Bromeon

itest/rust/src/builtin_tests/containers/array_test.rs

@@ -570,6 +570,18 @@ fn array_resize() {
     assert_eq!(a, Array::new());
 }
 
+// Tests that arrays of objects can be declared without explicit type annotations. A similar test exists for DynGd in dyn_gd_test.rs.
+// This has deliberately been added to guard against regressions in case `AsArg` is extended (T: Inherits<Base> support broke this).
+fn __array_type_inference() {
+    let a = Node::new_alloc();
+    let b = Node::new_alloc();
+    let _array = array![&a, &b];
+
+    let c = ArrayTest::new_gd();
+    let d = ArrayTest::new_gd();
+    let _array = array![&c, &d];
+}
+
 #[derive(GodotClass, Debug)]
 #[class(init, base=RefCounted)]
 struct ArrayTest;

itest/rust/src/object_tests/dyn_gd_test.rs

@@ -4,6 +4,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
+
 use crate::framework::{expect_panic, itest};
 // Test that all important dyn-related symbols are in the prelude.
 use godot::prelude::*;
@@ -352,6 +353,11 @@ fn dyn_gd_store_in_godot_array() {
     assert_eq!(array.at(1).dyn_bind().get_hitpoints(), 100);
 
     array.at(1).free();
+
+    // Tests also type inference of array![]. Independent variable c.
+    let c = Gd::from_object(RefcHealth { hp: 33 }).into_dyn();
+    let array_inferred = array![&c];
+    assert_eq!(array_inferred.at(0).dyn_bind().get_hitpoints(), 33);
 }
 
 #[itest]