1 files changed, 74 insertions, 0 deletions
diff --git a/bzipper_macros/src/generic_name/mod.rs b/bzipper_macros/src/generic_name/mod.rs
new file mode 100644
index 0000000..a0c51f5
--- /dev/null
+++ b/bzipper_macros/src/generic_name/mod.rs
@@ -0,0 +1,74 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of bzipper.
+//
+// bzipper is free software: you can redistribute
+// it and/or modify it under the terms of the GNU
+// Lesser General Public License as published by
+// the Free Software Foundation, either version 3
+// of the License, or (at your option) any later
+// version.
+//
+// bzipper is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Less-
+// er General Public License along with bzipper. If
+// not, see <https://www.gnu.org/licenses/>.
+
+use proc_macro2::TokenStream;
+use quote::ToTokens;
+use syn::{
+ GenericParam,
+ Generics,
+ Ident,
+ Lifetime,
+ Token,
+ punctuated::Punctuated,
+};
+
+/// A name of a genric.
+#[derive(Clone)]
+pub enum GenericName {
+ Const( Ident),
+ Lifetime(Lifetime),
+ Type( Ident),
+}
+
+impl GenericName {
+ /// Extracts the names of the given generics.
+ #[must_use]
+ pub fn extract_from(generics: &Generics) -> Punctuated<Self, Token![,]> {
+ let mut names = Punctuated::new();
+
+ for generic in &generics.params {
+ let name = match *generic {
+ GenericParam::Const( ref param) => Self::Const( param.ident.clone()),
+ GenericParam::Lifetime(ref param) => Self::Lifetime(param.lifetime.clone()),
+ GenericParam::Type( ref param) => Self::Type( param.ident.clone()),
+ };
+
+ names.push(name);
+ }
+
+ names
+ }
+}
+
+impl ToTokens for GenericName {
+ #[inline(always)]
+ fn to_tokens(&self, tokens: &mut TokenStream) {
+ use GenericName::*;
+
+ match *self {
+ | Const(ref ident)
+ | Type( ref ident)
+ => ident.to_tokens(tokens),
+
+ Lifetime(ref lifetime) => lifetime.to_tokens(tokens),
+ }
+ }
+}