1 files changed, 88 insertions, 0 deletions
diff --git a/src/castable_factory/mod.rs b/src/castable_factory/mod.rs
new file mode 100644
index 0000000..196dc14
--- /dev/null
+++ b/src/castable_factory/mod.rs
@@ -0,0 +1,88 @@
+use std::any::{type_name, Any};
+use std::fmt::Debug;
+
+use crate::any_factory::AnyFactory;
+use crate::ptr::TransientPtr;
+
+#[cfg(feature = "async")]
+pub mod threadsafe;
+
+pub struct CastableFactory<ReturnInterface, DIContainerT>
+where
+    ReturnInterface: 'static + ?Sized,
+    DIContainerT: 'static,
+{
+    func: &'static dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface>,
+}
+
+impl<ReturnInterface, DIContainerT> CastableFactory<ReturnInterface, DIContainerT>
+where
+    ReturnInterface: 'static + ?Sized,
+{
+    pub fn new(
+        func: &'static dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface>,
+    ) -> Self
+    {
+        Self { func }
+    }
+
+    pub fn call(&self, di_container: &DIContainerT) -> TransientPtr<ReturnInterface>
+    {
+        (self.func)(di_container)
+    }
+}
+
+impl<ReturnInterface, DIContainerT> AnyFactory
+    for CastableFactory<ReturnInterface, DIContainerT>
+where
+    ReturnInterface: 'static + ?Sized,
+    DIContainerT: 'static,
+{
+    fn as_any(&self) -> &dyn Any
+    {
+        self
+    }
+}
+
+impl<ReturnInterface, DIContainerT> Debug
+    for CastableFactory<ReturnInterface, DIContainerT>
+where
+    ReturnInterface: 'static + ?Sized,
+{
+    #[cfg(not(tarpaulin_include))]
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
+    {
+        let ret = type_name::<TransientPtr<ReturnInterface>>();
+
+        formatter.write_fmt(format_args!(
+            "CastableFactory (&DIContainer) -> {ret} {{ ... }}"
+        ))
+    }
+}
+
+#[cfg(test)]
+mod tests
+{
+    use super::*;
+    use crate::di_container::blocking::MockDIContainer;
+
+    #[derive(Debug, PartialEq, Eq)]
+    struct Bacon
+    {
+        heal_amount: u32,
+    }
+
+    #[test]
+    fn can_call()
+    {
+        let castable_factory = CastableFactory::new(&|_: &MockDIContainer| {
+            TransientPtr::new(Bacon { heal_amount: 27 })
+        });
+
+        let mock_di_container = MockDIContainer::new();
+
+        let output = castable_factory.call(&mock_di_container);
+
+        assert_eq!(output, TransientPtr::new(Bacon { heal_amount: 27 }));
+    }
+}