1 files changed, 96 insertions, 0 deletions
diff --git a/macros/src/lib.rs b/macros/src/lib.rs
new file mode 100644
index 0000000..ed1a509
--- /dev/null
+++ b/macros/src/lib.rs
@@ -0,0 +1,96 @@
+#![deny(clippy::all)]
+#![deny(clippy::pedantic)]
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse, parse_macro_input};
+
+mod declare_interface_args;
+mod factory_type_alias;
+mod injectable_impl;
+mod injectable_macro_args;
+mod libs;
+
+use declare_interface_args::DeclareInterfaceArgs;
+use factory_type_alias::FactoryTypeAlias;
+use injectable_impl::InjectableImpl;
+use injectable_macro_args::InjectableMacroArgs;
+use libs::intertrait_macros::gen_caster::generate_caster;
+
+/// Makes a struct injectable. Thereby usable with `DIContainer`.
+///
+/// # Arguments
+/// * A interface trait the struct implements.
+///
+/// # Panics
+/// If the attributed item is not a impl.
+#[proc_macro_attribute]
+pub fn injectable(args_stream: TokenStream, impl_stream: TokenStream) -> TokenStream
+{
+    let InjectableMacroArgs {
+        interface: interface_type_path,
+    } = parse_macro_input!(args_stream);
+
+    let injectable_impl: InjectableImpl = parse(impl_stream).unwrap();
+
+    let expanded_injectable_impl = injectable_impl.expand();
+
+    let self_type = &injectable_impl.self_type;
+
+    quote! {
+        #expanded_injectable_impl
+
+        syrette::declare_interface!(#self_type -> #interface_type_path);
+    }
+    .into()
+}
+
+/// Makes a type alias usable as a factory interface.
+///
+/// # Panics
+/// If the attributed item is not a type alias.
+#[proc_macro_attribute]
+pub fn factory(_: TokenStream, type_alias_stream: TokenStream) -> TokenStream
+{
+    let FactoryTypeAlias {
+        type_alias,
+        factory_interface,
+        arg_types,
+        return_type,
+    } = parse(type_alias_stream).unwrap();
+
+    quote! {
+        #type_alias
+
+        syrette::declare_interface!(
+            syrette::castable_factory::CastableFactory<
+                #arg_types,
+                #return_type
+            > -> #factory_interface
+        );
+
+        syrette::declare_interface!(
+            syrette::castable_factory::CastableFactory<
+                #arg_types,
+                #return_type
+            > -> syrette::castable_factory::AnyFactory
+        );
+    }
+    .into()
+}
+
+/// Declares the interface trait of a implementation.
+///
+/// # Arguments
+/// {Implementation} -> {Interface}
+///
+#[proc_macro]
+pub fn declare_interface(input: TokenStream) -> TokenStream
+{
+    let DeclareInterfaceArgs {
+        implementation,
+        interface,
+    } = parse_macro_input!(input);
+
+    generate_caster(&implementation, &interface).into()
+}