commit d09e012608fbe9c0e6929e33ae5f8dc214fbb1d1
author David Tolnay <dtolnay@gmail.com> Mon May 04 02:34:23 2020 -0700
committer David Tolnay <dtolnay@gmail.com> Thu May 07 19:46:01 2020 -0700
tree 442fc715690a0dc8c5592b831f9f577fe153218a
parent db08d4affec5fa375736e7652ebe54c253bc29e1

Add a type-level encoding of qualified paths

macro/src/lib.rs

diff --git a/macro/src/lib.rs b/macro/src/lib.rs
index b56f58e..bc8d19b 100644
--- a/macro/src/lib.rs
+++ b/macro/src/lib.rs
@@ -11,10 +11,11 @@
 
 mod expand;
 mod syntax;
+mod type_id;
 
 use crate::syntax::namespace::Namespace;
 use proc_macro::TokenStream;
-use syn::{parse_macro_input, ItemMod};
+use syn::{parse_macro_input, ItemMod, LitStr};
 
 /// `#[cxx::bridge] mod ffi { ... }`
 ///
@@ -44,3 +45,9 @@
         .unwrap_or_else(|err| err.to_compile_error())
         .into()
 }
+
+#[proc_macro]
+pub fn type_id(input: TokenStream) -> TokenStream {
+    let arg = parse_macro_input!(input as LitStr);
+    type_id::expand(arg).into()
+}