feat!: prevent binding the same interface more than once

BREAKING CHANGE: The 'to' and 'to_factory' methods of BindingBuilder now return 'Result'

2 files changed, 4 insertions, 3 deletions

diff --git a/examples/basic/bootstrap.rs b/examples/basic/bootstrap.rs
index 10a7041..4af2d82 100644
--- a/examples/basic/bootstrap.rs
+++ b/examples/basic/bootstrap.rs
@@ -18,8 +18,8 @@ pub fn bootstrap() -> DIContainer
         .bind::<dyn IDog>()
         .to_singleton::<Dog>()
         .unwrap();
-    di_container.bind::<dyn ICat>().to::<Cat>();
-    di_container.bind::<dyn IHuman>().to::<Human>();
+    di_container.bind::<dyn ICat>().to::<Cat>().unwrap();
+    di_container.bind::<dyn IHuman>().to::<Human>().unwrap();
 
     di_container
 }
diff --git a/examples/factory/bootstrap.rs b/examples/factory/bootstrap.rs
index 1967c6a..a44ccfb 100644
--- a/examples/factory/bootstrap.rs
+++ b/examples/factory/bootstrap.rs
@@ -18,7 +18,8 @@ pub fn bootstrap() -> DIContainer
                 TransientPtr::new(User::new(name, date_of_birth, password));
 
             user
-        });
+        })
+        .unwrap();
 
     di_container
 }