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//@ force-host
//@ no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_derive(Blah)]
pub fn bad_input(input: String) -> TokenStream {
//~^ ERROR derive proc macro has incorrect signature
TokenStream::new()
}
#[proc_macro_derive(Bleh)]
pub fn bad_output(input: TokenStream) -> String {
//~^ ERROR derive proc macro has incorrect signature
String::from("blah")
}
#[proc_macro_derive(Bluh)]
pub fn bad_everything(input: String) -> String {
//~^ ERROR derive proc macro has incorrect signature
input
}
#[proc_macro_derive(Blih)]
pub fn too_many(a: TokenStream, b: TokenStream, c: String) -> TokenStream {
//~^ ERROR derive proc macro has incorrect signature
}
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