Create plugin_derive to replace the register_plugin macro

1 files changed, 27 insertions, 0 deletions

diff --git a/plugin_derive/src/lib.rs b/plugin_derive/src/lib.rs
new file mode 100644
index 0000000..704d6ef
--- /dev/null
+++ b/plugin_derive/src/lib.rs
@@ -0,0 +1,27 @@
+
+//! Provides the plugin derive macro
+
+extern crate proc_macro;
+extern crate syn;
+#[macro_use]
+extern crate quote;
+
+use proc_macro::TokenStream;
+
+#[proc_macro_derive(PluginName)]
+pub fn derive_plugin(data: TokenStream) -> TokenStream {
+    let ast = syn::parse_derive_input(&data.to_string()).unwrap();
+    let gen = expand_plugin(&ast);
+    gen.parse().unwrap()
+}
+
+fn expand_plugin(ast: &syn::DeriveInput) -> quote::Tokens {
+    let name = &ast.ident;
+    quote! {
+        impl PluginName for #name {
+            fn name(&self) -> &str {
+                stringify!(#name)
+            }
+        }
+    }
+}