1 files changed, 61 insertions, 0 deletions
diff --git a/src/alias.rs b/src/alias.rs
new file mode 100644
index 0000000..82ca68e
--- /dev/null
+++ b/src/alias.rs
@@ -0,0 +1,61 @@
+use crate::container::*;
+use proc_macro2::Span;
+use quote::quote;
+use syn::{Data, Ident};
+
+pub fn derive_ber_alias(s: synstructure::Structure) -> proc_macro2::TokenStream {
+    let ast = s.ast();
+
+    let container = match &ast.data {
+        Data::Struct(ds) => Container::from_datastruct(ds, ast, ContainerType::Alias),
+        _ => panic!("Unsupported type, cannot derive"),
+    };
+
+    let debug_derive = ast.attrs.iter().any(|attr| {
+        attr.path
+            .is_ident(&Ident::new("debug_derive", Span::call_site()))
+    });
+
+    let impl_tryfrom = container.gen_tryfrom();
+    let impl_tagged = container.gen_tagged();
+    let ts = s.gen_impl(quote! {
+        extern crate asn1_rs;
+
+        #impl_tryfrom
+        #impl_tagged
+    });
+    if debug_derive {
+        eprintln!("{}", ts);
+    }
+    ts
+}
+
+pub fn derive_der_alias(s: synstructure::Structure) -> proc_macro2::TokenStream {
+    let ast = s.ast();
+
+    let container = match &ast.data {
+        Data::Struct(ds) => Container::from_datastruct(ds, ast, ContainerType::Alias),
+        _ => panic!("Unsupported type, cannot derive"),
+    };
+
+    let debug_derive = ast.attrs.iter().any(|attr| {
+        attr.path
+            .is_ident(&Ident::new("debug_derive", Span::call_site()))
+    });
+    let impl_tryfrom = container.gen_tryfrom();
+    let impl_tagged = container.gen_tagged();
+    let impl_checkconstraints = container.gen_checkconstraints();
+    let impl_fromder = container.gen_fromder();
+    let ts = s.gen_impl(quote! {
+        extern crate asn1_rs;
+
+        #impl_tryfrom
+        #impl_tagged
+        #impl_checkconstraints
+        #impl_fromder
+    });
+    if debug_derive {
+        eprintln!("{}", ts);
+    }
+    ts
+}