tests/ui/proc-macro/crt-static.rs

   1 // Test proc-macro crate can be built without additional RUSTFLAGS
   2 // on musl target
   3 // override -Ctarget-feature=-crt-static from compiletest
   4 // compile-flags: --crate-type proc-macro -Ctarget-feature=
   5 // ignore-wasm32
   6 // ignore-sgx no support for proc-macro crate type
   7 // build-pass
   8 #![crate_type = "proc-macro"]
   9
  10 // FIXME: This don't work when crate-type is specified by attribute
  11 // `#![crate_type = "proc-macro"]`, not by `--crate-type=proc-macro`
  12 // command line flag. This is because the list of `cfg` symbols is generated
  13 // before attributes are parsed. See rustc_interface::util::add_configuration
  14 #[cfg(target_feature = "crt-static")]
  15 compile_error!("crt-static is enabled");
  16
  17 extern crate proc_macro;
  18
  19 use proc_macro::TokenStream;
  20
  21 #[proc_macro_derive(Foo)]
  22 pub fn derive_foo(input: TokenStream) -> TokenStream {
  23     input
  24 }