Jonas Schievink cb816b1ea8 Add a proc_macro_test crate
This exports all 3 kinds of proc macros and is useful for testing
2020-08-15 00:27:32 +02:00

19 lines
407 B
Rust

//! Exports a few trivial procedural macros for testing.
use proc_macro::TokenStream;
#[proc_macro]
pub fn function_like_macro(args: TokenStream) -> TokenStream {
args
}
#[proc_macro_attribute]
pub fn attribute_macro(_args: TokenStream, item: TokenStream) -> TokenStream {
item
}
#[proc_macro_derive(DummyTrait)]
pub fn derive_macro(_item: TokenStream) -> TokenStream {
TokenStream::new()
}