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-rw-r--r--src/castable_factory.rs76
-rw-r--r--src/di_container.rs504
-rw-r--r--src/errors/di_container.rs17
-rw-r--r--src/errors/injectable.rs17
-rw-r--r--src/errors/mod.rs2
-rw-r--r--src/interfaces/factory.rs10
-rw-r--r--src/interfaces/injectable.rs17
-rw-r--r--src/interfaces/mod.rs2
-rw-r--r--src/lib.rs22
-rw-r--r--src/libs/intertrait/LICENSE-APACHE176
-rw-r--r--src/libs/intertrait/LICENSE-MIT17
-rw-r--r--src/libs/intertrait/cast_box.rs32
-rw-r--r--src/libs/intertrait/cast_rc.rs34
-rw-r--r--src/libs/intertrait/hasher.rs48
-rw-r--r--src/libs/intertrait/mod.rs137
-rw-r--r--src/libs/mod.rs3
-rw-r--r--src/provider.rs82
-rw-r--r--src/ptr.rs6
18 files changed, 1202 insertions, 0 deletions
diff --git a/src/castable_factory.rs b/src/castable_factory.rs
new file mode 100644
index 0000000..5d582bb
--- /dev/null
+++ b/src/castable_factory.rs
@@ -0,0 +1,76 @@
+use crate::interfaces::factory::IFactory;
+use crate::libs::intertrait::CastFrom;
+use crate::ptr::InterfacePtr;
+
+pub trait AnyFactory: CastFrom {}
+
+pub struct CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+ func: &'static dyn Fn<Args, Output = InterfacePtr<ReturnInterface>>,
+}
+
+impl<Args, ReturnInterface> CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+ pub fn new(
+ func: &'static dyn Fn<Args, Output = InterfacePtr<ReturnInterface>>,
+ ) -> Self
+ {
+ Self { func }
+ }
+}
+
+impl<Args, ReturnInterface> IFactory<Args, ReturnInterface>
+ for CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+}
+
+impl<Args, ReturnInterface> Fn<Args> for CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+ extern "rust-call" fn call(&self, args: Args) -> Self::Output
+ {
+ self.func.call(args)
+ }
+}
+
+impl<Args, ReturnInterface> FnMut<Args> for CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+ extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output
+ {
+ self.call(args)
+ }
+}
+
+impl<Args, ReturnInterface> FnOnce<Args> for CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+ type Output = InterfacePtr<ReturnInterface>;
+
+ extern "rust-call" fn call_once(self, args: Args) -> Self::Output
+ {
+ self.call(args)
+ }
+}
+
+impl<Args, ReturnInterface> AnyFactory for CastableFactory<Args, ReturnInterface>
+where
+ Args: 'static,
+ ReturnInterface: 'static + ?Sized,
+{
+}
diff --git a/src/di_container.rs b/src/di_container.rs
new file mode 100644
index 0000000..6982a10
--- /dev/null
+++ b/src/di_container.rs
@@ -0,0 +1,504 @@
+use std::any::{type_name, TypeId};
+use std::collections::HashMap;
+use std::marker::PhantomData;
+use std::rc::Rc;
+
+use error_stack::{Report, ResultExt};
+
+use crate::castable_factory::CastableFactory;
+use crate::errors::di_container::DIContainerError;
+use crate::interfaces::factory::IFactory;
+use crate::interfaces::injectable::Injectable;
+use crate::libs::intertrait::cast_box::CastBox;
+use crate::libs::intertrait::cast_rc::CastRc;
+use crate::provider::{FactoryProvider, IProvider, InjectableTypeProvider, Providable};
+use crate::ptr::{FactoryPtr, InterfacePtr};
+
+/// Binding builder for type `Interface` inside a [`DIContainer`].
+pub struct BindingBuilder<'di_container_lt, Interface>
+where
+ Interface: 'static + ?Sized,
+{
+ di_container: &'di_container_lt mut DIContainer,
+ interface_phantom: PhantomData<Interface>,
+}
+
+impl<'di_container_lt, Interface> BindingBuilder<'di_container_lt, Interface>
+where
+ Interface: 'static + ?Sized,
+{
+ fn new(di_container: &'di_container_lt mut DIContainer) -> Self
+ {
+ Self {
+ di_container,
+ interface_phantom: PhantomData,
+ }
+ }
+
+ /// Creates a binding of type `Interface` to type `Implementation` inside of the
+ /// associated [`DIContainer`].
+ pub fn to<Implementation>(&mut self)
+ where
+ Implementation: Injectable,
+ {
+ let interface_typeid = TypeId::of::<Interface>();
+
+ self.di_container.bindings.insert(
+ interface_typeid,
+ Rc::new(InjectableTypeProvider::<Implementation>::new()),
+ );
+ }
+
+ /// Creates a binding of factory type `Interface` to a factory inside of the
+ /// associated [`DIContainer`].
+ pub fn to_factory<Args, Return>(
+ &mut self,
+ factory_func: &'static dyn Fn<Args, Output = InterfacePtr<Return>>,
+ ) where
+ Args: 'static,
+ Return: 'static + ?Sized,
+ Interface: IFactory<Args, Return>,
+ {
+ let interface_typeid = TypeId::of::<Interface>();
+
+ let factory_impl = CastableFactory::new(factory_func);
+
+ self.di_container.bindings.insert(
+ interface_typeid,
+ Rc::new(FactoryProvider::new(FactoryPtr::new(factory_impl))),
+ );
+ }
+}
+
+/// Dependency injection container.
+///
+/// # Examples
+/// ```
+/// use std::collections::HashMap;
+///
+/// use syrette::{DIContainer, injectable};
+/// use syrette::errors::di_container::DIContainerError;
+///
+/// trait IDatabaseService
+/// {
+/// fn get_all_records(&self, table_name: String) -> HashMap<String, String>;
+/// }
+///
+/// struct DatabaseService {}
+///
+/// #[injectable(IDatabaseService)]
+/// impl DatabaseService
+/// {
+/// fn new() -> Self
+/// {
+/// Self {}
+/// }
+/// }
+///
+/// impl IDatabaseService for DatabaseService
+/// {
+/// fn get_all_records(&self, table_name: String) -> HashMap<String, String>
+/// {
+/// // Do stuff here
+/// HashMap::<String, String>::new()
+/// }
+/// }
+///
+/// fn main() -> error_stack::Result<(), DIContainerError>
+/// {
+/// let mut di_container = DIContainer::new();
+///
+/// di_container.bind::<dyn IDatabaseService>().to::<DatabaseService>();
+///
+/// let database_service = di_container.get::<dyn IDatabaseService>()?;
+///
+/// Ok(())
+/// }
+/// ```
+pub struct DIContainer
+{
+ bindings: HashMap<TypeId, Rc<dyn IProvider>>,
+}
+
+impl DIContainer
+{
+ /// Returns a new `DIContainer`.
+ #[must_use]
+ pub fn new() -> Self
+ {
+ Self {
+ bindings: HashMap::new(),
+ }
+ }
+
+ /// Returns a new [`BindingBuilder`] for the given interface.
+ pub fn bind<Interface>(&mut self) -> BindingBuilder<Interface>
+ where
+ Interface: 'static + ?Sized,
+ {
+ BindingBuilder::<Interface>::new(self)
+ }
+
+ /// Returns a new instance of the type bound with `Interface`.
+ ///
+ /// # Errors
+ /// Will return `Err` if:
+ /// - No binding for `Interface` exists
+ /// - Resolving the binding for `Interface` fails
+ /// - Casting the binding for `Interface` fails
+ /// - The binding for `Interface` is not injectable
+ pub fn get<Interface>(
+ &self,
+ ) -> error_stack::Result<InterfacePtr<Interface>, DIContainerError>
+ where
+ Interface: 'static + ?Sized,
+ {
+ let interface_typeid = TypeId::of::<Interface>();
+
+ let interface_name = type_name::<Interface>();
+
+ let binding = self.bindings.get(&interface_typeid).ok_or_else(|| {
+ Report::new(DIContainerError)
+ .attach_printable(format!("No binding exists for {}", interface_name))
+ })?;
+
+ let binding_providable = binding
+ .provide(self)
+ .change_context(DIContainerError)
+ .attach_printable(format!(
+ "Failed to resolve binding for interface {}",
+ interface_name
+ ))?;
+
+ match binding_providable {
+ Providable::Injectable(binding_injectable) => {
+ let interface_box_result = binding_injectable.cast::<Interface>();
+
+ match interface_box_result {
+ Ok(interface_box) => Ok(interface_box),
+ Err(_) => Err(Report::new(DIContainerError).attach_printable(
+ format!("Unable to cast binding for {}", interface_name),
+ )),
+ }
+ }
+ Providable::Factory(_) => Err(Report::new(DIContainerError)
+ .attach_printable(format!(
+ "Binding for {} is not injectable",
+ interface_name
+ ))),
+ }
+ }
+
+ /// Returns the factory bound with factory type `Interface`.
+ ///
+ /// # Errors
+ /// Will return `Err` if:
+ /// - No binding for `Interface` exists
+ /// - Resolving the binding for `Interface` fails
+ /// - Casting the binding for `Interface` fails
+ /// - The binding for `Interface` is not a factory
+ pub fn get_factory<Interface>(
+ &self,
+ ) -> error_stack::Result<FactoryPtr<Interface>, DIContainerError>
+ where
+ Interface: 'static + ?Sized,
+ {
+ let interface_typeid = TypeId::of::<Interface>();
+
+ let interface_name = type_name::<Interface>();
+
+ let binding = self.bindings.get(&interface_typeid).ok_or_else(|| {
+ Report::new(DIContainerError)
+ .attach_printable(format!("No binding exists for {}", interface_name))
+ })?;
+
+ let binding_providable = binding
+ .provide(self)
+ .change_context(DIContainerError)
+ .attach_printable(format!(
+ "Failed to resolve binding for interface {}",
+ interface_name
+ ))?;
+
+ match binding_providable {
+ Providable::Factory(binding_factory) => {
+ let factory_box_result = binding_factory.cast::<Interface>();
+
+ match factory_box_result {
+ Ok(interface_box) => Ok(interface_box),
+ Err(_) => Err(Report::new(DIContainerError).attach_printable(
+ format!("Unable to cast binding for {}", interface_name),
+ )),
+ }
+ }
+ Providable::Injectable(_) => Err(Report::new(DIContainerError)
+ .attach_printable(format!(
+ "Binding for {} is not a factory",
+ interface_name
+ ))),
+ }
+ }
+}
+
+impl Default for DIContainer
+{
+ fn default() -> Self
+ {
+ Self::new()
+ }
+}
+
+#[cfg(test)]
+mod tests
+{
+ use mockall::mock;
+
+ use super::*;
+ use crate::errors::injectable::ResolveError;
+
+ #[test]
+ fn can_bind_to()
+ {
+ trait IUserManager
+ {
+ fn add_user(&self, user_id: i128);
+
+ fn remove_user(&self, user_id: i128);
+ }
+
+ struct UserManager {}
+
+ impl IUserManager for UserManager
+ {
+ fn add_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+
+ fn remove_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+ }
+
+ impl Injectable for UserManager
+ {
+ fn resolve(
+ _di_container: &DIContainer,
+ ) -> error_stack::Result<
+ InterfacePtr<Self>,
+ crate::errors::injectable::ResolveError,
+ >
+ where
+ Self: Sized,
+ {
+ Ok(InterfacePtr::new(Self {}))
+ }
+ }
+
+ let mut di_container: DIContainer = DIContainer::new();
+
+ assert_eq!(di_container.bindings.len(), 0);
+
+ di_container.bind::<dyn IUserManager>().to::<UserManager>();
+
+ assert_eq!(di_container.bindings.len(), 1);
+ }
+
+ #[test]
+ fn can_bind_to_factory()
+ {
+ trait IUserManager
+ {
+ fn add_user(&self, user_id: i128);
+
+ fn remove_user(&self, user_id: i128);
+ }
+
+ struct UserManager {}
+
+ impl UserManager
+ {
+ fn new() -> Self
+ {
+ Self {}
+ }
+ }
+
+ impl IUserManager for UserManager
+ {
+ fn add_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+
+ fn remove_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+ }
+
+ type IUserManagerFactory = dyn IFactory<(), dyn IUserManager>;
+
+ let mut di_container: DIContainer = DIContainer::new();
+
+ assert_eq!(di_container.bindings.len(), 0);
+
+ di_container.bind::<IUserManagerFactory>().to_factory(&|| {
+ let user_manager: InterfacePtr<dyn IUserManager> =
+ InterfacePtr::new(UserManager::new());
+
+ user_manager
+ });
+
+ assert_eq!(di_container.bindings.len(), 1);
+ }
+
+ #[test]
+ fn can_get() -> error_stack::Result<(), DIContainerError>
+ {
+ trait IUserManager
+ {
+ fn add_user(&self, user_id: i128);
+
+ fn remove_user(&self, user_id: i128);
+ }
+
+ struct UserManager {}
+
+ use crate as syrette;
+ use crate::injectable;
+
+ #[injectable(IUserManager)]
+ impl UserManager
+ {
+ fn new() -> Self
+ {
+ Self {}
+ }
+ }
+
+ impl IUserManager for UserManager
+ {
+ fn add_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+
+ fn remove_user(&self, _user_id: i128)
+ {
+ // ...
+ }
+ }
+
+ mock! {
+ Provider {}
+
+ impl IProvider for Provider
+ {
+ fn provide(
+ &self,
+ di_container: &DIContainer,
+ ) -> error_stack::Result<Providable, ResolveError>;
+ }
+ }
+
+ let mut di_container: DIContainer = DIContainer::new();
+
+ let mut mock_provider = MockProvider::new();
+
+ mock_provider.expect_provide().returning(|_| {
+ Ok(Providable::Injectable(
+ InterfacePtr::new(UserManager::new()),
+ ))
+ });
+
+ di_container
+ .bindings
+ .insert(TypeId::of::<dyn IUserManager>(), Rc::new(mock_provider));
+
+ di_container.get::<dyn IUserManager>()?;
+
+ Ok(())
+ }
+
+ #[test]
+ fn can_get_factory() -> error_stack::Result<(), DIContainerError>
+ {
+ trait IUserManager
+ {
+ fn add_user(&mut self, user_id: i128);
+
+ fn remove_user(&mut self, user_id: i128);
+ }
+
+ struct UserManager
+ {
+ users: Vec<i128>,
+ }
+
+ impl UserManager
+ {
+ fn new(users: Vec<i128>) -> Self
+ {
+ Self { users }
+ }
+ }
+
+ impl IUserManager for UserManager
+ {
+ fn add_user(&mut self, user_id: i128)
+ {
+ self.users.push(user_id);
+ }
+
+ fn remove_user(&mut self, user_id: i128)
+ {
+ let user_index =
+ self.users.iter().position(|user| *user == user_id).unwrap();
+
+ self.users.remove(user_index);
+ }
+ }
+
+ use crate as syrette;
+
+ #[crate::factory]
+ type IUserManagerFactory = dyn IFactory<(Vec<i128>,), dyn IUserManager>;
+
+ mock! {
+ Provider {}
+
+ impl IProvider for Provider
+ {
+ fn provide(
+ &self,
+ di_container: &DIContainer,
+ ) -> error_stack::Result<Providable, ResolveError>;
+ }
+ }
+
+ let mut di_container: DIContainer = DIContainer::new();
+
+ let mut mock_provider = MockProvider::new();
+
+ mock_provider.expect_provide().returning(|_| {
+ Ok(Providable::Factory(FactoryPtr::new(CastableFactory::new(
+ &|users| {
+ let user_manager: InterfacePtr<dyn IUserManager> =
+ InterfacePtr::new(UserManager::new(users));
+
+ user_manager
+ },
+ ))))
+ });
+
+ di_container
+ .bindings
+ .insert(TypeId::of::<IUserManagerFactory>(), Rc::new(mock_provider));
+
+ di_container.get_factory::<IUserManagerFactory>()?;
+
+ Ok(())
+ }
+}
diff --git a/src/errors/di_container.rs b/src/errors/di_container.rs
new file mode 100644
index 0000000..f2b8add
--- /dev/null
+++ b/src/errors/di_container.rs
@@ -0,0 +1,17 @@
+use std::fmt;
+use std::fmt::{Display, Formatter};
+
+use error_stack::Context;
+
+#[derive(Debug)]
+pub struct DIContainerError;
+
+impl Display for DIContainerError
+{
+ fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result
+ {
+ fmt.write_str("A DI container error has occurred")
+ }
+}
+
+impl Context for DIContainerError {}
diff --git a/src/errors/injectable.rs b/src/errors/injectable.rs
new file mode 100644
index 0000000..6b0cdc5
--- /dev/null
+++ b/src/errors/injectable.rs
@@ -0,0 +1,17 @@
+use core::fmt;
+use std::fmt::{Display, Formatter};
+
+use error_stack::Context;
+
+#[derive(Debug)]
+pub struct ResolveError;
+
+impl Display for ResolveError
+{
+ fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result
+ {
+ fmt.write_str("Failed to resolve injectable struct")
+ }
+}
+
+impl Context for ResolveError {}
diff --git a/src/errors/mod.rs b/src/errors/mod.rs
new file mode 100644
index 0000000..b0d50f0
--- /dev/null
+++ b/src/errors/mod.rs
@@ -0,0 +1,2 @@
+pub mod di_container;
+pub mod injectable;
diff --git a/src/interfaces/factory.rs b/src/interfaces/factory.rs
new file mode 100644
index 0000000..c97fc09
--- /dev/null
+++ b/src/interfaces/factory.rs
@@ -0,0 +1,10 @@
+#![allow(clippy::module_name_repetitions)]
+use crate::libs::intertrait::CastFrom;
+use crate::ptr::InterfacePtr;
+
+pub trait IFactory<Args, ReturnInterface>:
+ Fn<Args, Output = InterfacePtr<ReturnInterface>> + CastFrom
+where
+ ReturnInterface: 'static + ?Sized,
+{
+}
diff --git a/src/interfaces/injectable.rs b/src/interfaces/injectable.rs
new file mode 100644
index 0000000..24032a6
--- /dev/null
+++ b/src/interfaces/injectable.rs
@@ -0,0 +1,17 @@
+use crate::errors::injectable::ResolveError;
+use crate::libs::intertrait::CastFrom;
+use crate::ptr::InterfacePtr;
+use crate::DIContainer;
+
+pub trait Injectable: CastFrom
+{
+ /// Resolves the dependencies of the injectable.
+ ///
+ /// # Errors
+ /// Will return `Err` if resolving the dependencies fails.
+ fn resolve(
+ di_container: &DIContainer,
+ ) -> error_stack::Result<InterfacePtr<Self>, ResolveError>
+ where
+ Self: Sized;
+}
diff --git a/src/interfaces/mod.rs b/src/interfaces/mod.rs
new file mode 100644
index 0000000..921bb9c
--- /dev/null
+++ b/src/interfaces/mod.rs
@@ -0,0 +1,2 @@
+pub mod factory;
+pub mod injectable;
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..992f276
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,22 @@
+#![feature(unboxed_closures, fn_traits)]
+#![deny(clippy::all)]
+#![deny(clippy::pedantic)]
+
+//! Syrette
+//!
+//! Syrette is a collection of utilities useful for performing dependency injection.
+
+pub mod castable_factory;
+pub mod di_container;
+pub mod errors;
+pub mod interfaces;
+pub mod ptr;
+
+pub use di_container::*;
+pub use syrette_macros::*;
+
+#[doc(hidden)]
+pub mod libs;
+
+// Private
+mod provider;
diff --git a/src/libs/intertrait/LICENSE-APACHE b/src/libs/intertrait/LICENSE-APACHE
new file mode 100644
index 0000000..d9a10c0
--- /dev/null
+++ b/src/libs/intertrait/LICENSE-APACHE
@@ -0,0 +1,176 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
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+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
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+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
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+ institute patent litigation against any entity (including a
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+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
diff --git a/src/libs/intertrait/LICENSE-MIT b/src/libs/intertrait/LICENSE-MIT
new file mode 100644
index 0000000..969d061
--- /dev/null
+++ b/src/libs/intertrait/LICENSE-MIT
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/libs/intertrait/cast_box.rs b/src/libs/intertrait/cast_box.rs
new file mode 100644
index 0000000..793efd0
--- /dev/null
+++ b/src/libs/intertrait/cast_box.rs
@@ -0,0 +1,32 @@
+/**
+ * Originally from Intertrait by CodeChain
+ *
+ * <https://github.com/CodeChain-io/intertrait>
+ * <https://crates.io/crates/intertrait/0.2.2>
+ *
+ * Licensed under either of
+ *
+ * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
+ * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)
+
+ * at your option.
+*/
+use crate::libs::intertrait::{caster, CastFrom};
+
+pub trait CastBox
+{
+ /// Casts a box to this trait into that of type `T`. If fails, returns the receiver.
+ fn cast<T: ?Sized + 'static>(self: Box<Self>) -> Result<Box<T>, Box<Self>>;
+}
+
+/// A blanket implementation of `CastBox` for traits extending `CastFrom`.
+impl<S: ?Sized + CastFrom> CastBox for S
+{
+ fn cast<T: ?Sized + 'static>(self: Box<Self>) -> Result<Box<T>, Box<Self>>
+ {
+ match caster::<T>((*self).type_id()) {
+ Some(caster) => Ok((caster.cast_box)(self.box_any())),
+ None => Err(self),
+ }
+ }
+}
diff --git a/src/libs/intertrait/cast_rc.rs b/src/libs/intertrait/cast_rc.rs
new file mode 100644
index 0000000..79d8d60
--- /dev/null
+++ b/src/libs/intertrait/cast_rc.rs
@@ -0,0 +1,34 @@
+/**
+ * Originally from Intertrait by CodeChain
+ *
+ * <https://github.com/CodeChain-io/intertrait>
+ * <https://crates.io/crates/intertrait/0.2.2>
+ *
+ * Licensed under either of
+ *
+ * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
+ * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)
+
+ * at your option.
+*/
+use std::rc::Rc;
+
+use crate::libs::intertrait::{caster, CastFrom};
+
+pub trait CastRc
+{
+ /// Casts an `Rc` for this trait into that for type `T`.
+ fn cast<T: ?Sized + 'static>(self: Rc<Self>) -> Result<Rc<T>, Rc<Self>>;
+}
+
+/// A blanket implementation of `CastRc` for traits extending `CastFrom`.
+impl<S: ?Sized + CastFrom> CastRc for S
+{
+ fn cast<T: ?Sized + 'static>(self: Rc<Self>) -> Result<Rc<T>, Rc<Self>>
+ {
+ match caster::<T>((*self).type_id()) {
+ Some(caster) => Ok((caster.cast_rc)(self.rc_any())),
+ None => Err(self),
+ }
+ }
+}
diff --git a/src/libs/intertrait/hasher.rs b/src/libs/intertrait/hasher.rs
new file mode 100644
index 0000000..e7f110d
--- /dev/null
+++ b/src/libs/intertrait/hasher.rs
@@ -0,0 +1,48 @@
+#![allow(clippy::module_name_repetitions)]
+
+/**
+ * Originally from Intertrait by CodeChain
+ *
+ * <https://github.com/CodeChain-io/intertrait>
+ * <https://crates.io/crates/intertrait/0.2.2>
+ *
+ * Licensed under either of
+ *
+ * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
+ * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)
+
+ * at your option.
+*/
+use std::convert::TryInto;
+use std::hash::{BuildHasherDefault, Hasher};
+use std::mem::size_of;
+
+/// A simple `Hasher` implementation tuned for performance.
+#[derive(Default)]
+pub struct FastHasher(u64);
+
+/// A `BuildHasher` for `FastHasher`.
+pub type BuildFastHasher = BuildHasherDefault<FastHasher>;
+
+impl Hasher for FastHasher
+{
+ fn finish(&self) -> u64
+ {
+ self.0
+ }
+
+ fn write(&mut self, bytes: &[u8])
+ {
+ let mut bytes = bytes;
+ while bytes.len() > size_of::<u64>() {
+ let (u64_bytes, remaining) = bytes.split_at(size_of::<u64>());
+
+ self.0 ^= u64::from_ne_bytes(u64_bytes.try_into().unwrap());
+
+ bytes = remaining;
+ }
+ self.0 ^= bytes
+ .iter()
+ .fold(0u64, |result, b| (result << 8) | u64::from(*b));
+ }
+}
diff --git a/src/libs/intertrait/mod.rs b/src/libs/intertrait/mod.rs
new file mode 100644
index 0000000..1daca64
--- /dev/null
+++ b/src/libs/intertrait/mod.rs
@@ -0,0 +1,137 @@
+/**
+ * Originally from Intertrait by CodeChain
+ *
+ * <https://github.com/CodeChain-io/intertrait>
+ * <https://crates.io/crates/intertrait/0.2.2>
+ *
+ * Licensed under either of
+ *
+ * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
+ * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)
+
+ * at your option.
+*/
+use std::any::{Any, TypeId};
+use std::collections::HashMap;
+use std::rc::Rc;
+use std::sync::Arc;
+
+use linkme::distributed_slice;
+use once_cell::sync::Lazy;
+
+mod hasher;
+
+use hasher::BuildFastHasher;
+
+pub mod cast_box;
+pub mod cast_rc;
+
+pub type BoxedCaster = Box<dyn Any + Send + Sync>;
+
+#[distributed_slice]
+pub static CASTERS: [fn() -> (TypeId, BoxedCaster)] = [..];
+
+static CASTER_MAP: Lazy<HashMap<(TypeId, TypeId), BoxedCaster, BuildFastHasher>> =
+ Lazy::new(|| {
+ CASTERS
+ .iter()
+ .map(|f| {
+ let (type_id, caster) = f();
+ ((type_id, (*caster).type_id()), caster)
+ })
+ .collect()
+ });
+
+pub struct Caster<T: ?Sized + 'static>
+{
+ /// Casts a `Box` holding a trait object for `Any` to another `Box` holding a trait object
+ /// for trait `T`.
+ pub cast_box: fn(from: Box<dyn Any>) -> Box<T>,
+
+ /// Casts an `Rc` holding a trait object for `Any` to another `Rc` holding a trait object
+ /// for trait `T`.
+ pub cast_rc: fn(from: Rc<dyn Any>) -> Rc<T>,
+}
+
+impl<T: ?Sized + 'static> Caster<T>
+{
+ pub fn new(
+ cast_box: fn(from: Box<dyn Any>) -> Box<T>,
+ cast_rc: fn(from: Rc<dyn Any>) -> Rc<T>,
+ ) -> Caster<T>
+ {
+ Caster::<T> { cast_box, cast_rc }
+ }
+}
+
+/// Returns a `Caster<S, T>` from a concrete type `S` to a trait `T` implemented by it.
+fn caster<T: ?Sized + 'static>(type_id: TypeId) -> Option<&'static Caster<T>>
+{
+ CASTER_MAP
+ .get(&(type_id, TypeId::of::<Caster<T>>()))
+ .and_then(|caster| caster.downcast_ref::<Caster<T>>())
+}
+
+/// `CastFrom` must be extended by a trait that wants to allow for casting into another trait.
+///
+/// It is used for obtaining a trait object for [`Any`] from a trait object for its sub-trait,
+/// and blanket implemented for all `Sized + Any + 'static` types.
+///
+/// # Examples
+/// ```ignore
+/// trait Source: CastFrom {
+/// ...
+/// }
+/// ```
+pub trait CastFrom: Any + 'static
+{
+ /// Returns a `Box` of `Any`, which is backed by the type implementing this trait.
+ fn box_any(self: Box<Self>) -> Box<dyn Any>;
+
+ /// Returns an `Rc` of `Any`, which is backed by the type implementing this trait.
+ fn rc_any(self: Rc<Self>) -> Rc<dyn Any>;
+}
+
+pub trait CastFromSync: CastFrom + Sync + Send + 'static
+{
+ fn arc_any(self: Arc<Self>) -> Arc<dyn Any + Sync + Send + 'static>;
+}
+
+impl<T: Sized + Any + 'static> CastFrom for T
+{
+ fn box_any(self: Box<Self>) -> Box<dyn Any>
+ {
+ self
+ }
+
+ fn rc_any(self: Rc<Self>) -> Rc<dyn Any>
+ {
+ self
+ }
+}
+
+impl CastFrom for dyn Any + 'static
+{
+ fn box_any(self: Box<Self>) -> Box<dyn Any>
+ {
+ self
+ }
+
+ fn rc_any(self: Rc<Self>) -> Rc<dyn Any>
+ {
+ self
+ }
+}
+
+impl CastFrom for dyn Any + Sync + Send + 'static
+{
+ fn box_any(self: Box<Self>) -> Box<dyn Any>
+ {
+ self
+ }
+
+ fn rc_any(self: Rc<Self>) -> Rc<dyn Any>
+ {
+ self
+ }
+}
diff --git a/src/libs/mod.rs b/src/libs/mod.rs
new file mode 100644
index 0000000..8d5583d
--- /dev/null
+++ b/src/libs/mod.rs
@@ -0,0 +1,3 @@
+pub mod intertrait;
+
+pub extern crate linkme;
diff --git a/src/provider.rs b/src/provider.rs
new file mode 100644
index 0000000..3b7e04c
--- /dev/null
+++ b/src/provider.rs
@@ -0,0 +1,82 @@
+#![allow(clippy::module_name_repetitions)]
+use std::marker::PhantomData;
+
+use crate::castable_factory::AnyFactory;
+use crate::errors::injectable::ResolveError;
+use crate::interfaces::injectable::Injectable;
+use crate::ptr::{FactoryPtr, InterfacePtr};
+use crate::DIContainer;
+
+extern crate error_stack;
+
+pub enum Providable
+{
+ Injectable(InterfacePtr<dyn Injectable>),
+ Factory(FactoryPtr<dyn AnyFactory>),
+}
+
+pub trait IProvider
+{
+ fn provide(
+ &self,
+ di_container: &DIContainer,
+ ) -> error_stack::Result<Providable, ResolveError>;
+}
+
+pub struct InjectableTypeProvider<InjectableType>
+where
+ InjectableType: Injectable,
+{
+ injectable_phantom: PhantomData<InjectableType>,
+}
+
+impl<InjectableType> InjectableTypeProvider<InjectableType>
+where
+ InjectableType: Injectable,
+{
+ pub fn new() -> Self
+ {
+ Self {
+ injectable_phantom: PhantomData,
+ }
+ }
+}
+
+impl<InjectableType> IProvider for InjectableTypeProvider<InjectableType>
+where
+ InjectableType: Injectable,
+{
+ fn provide(
+ &self,
+ di_container: &DIContainer,
+ ) -> error_stack::Result<Providable, ResolveError>
+ {
+ Ok(Providable::Injectable(InjectableType::resolve(
+ di_container,
+ )?))
+ }
+}
+
+pub struct FactoryProvider
+{
+ factory: FactoryPtr<dyn AnyFactory>,
+}
+
+impl FactoryProvider
+{
+ pub fn new(factory: FactoryPtr<dyn AnyFactory>) -> Self
+ {
+ Self { factory }
+ }
+}
+
+impl IProvider for FactoryProvider
+{
+ fn provide(
+ &self,
+ _di_container: &DIContainer,
+ ) -> error_stack::Result<Providable, ResolveError>
+ {
+ Ok(Providable::Factory(self.factory.clone()))
+ }
+}
diff --git a/src/ptr.rs b/src/ptr.rs
new file mode 100644
index 0000000..414d086
--- /dev/null
+++ b/src/ptr.rs
@@ -0,0 +1,6 @@
+#![allow(clippy::module_name_repetitions)]
+use std::rc::Rc;
+
+pub type InterfacePtr<Interface> = Box<Interface>;
+
+pub type FactoryPtr<FactoryInterface> = Rc<FactoryInterface>;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-01 07:34:25 +0000