rust/tests/ui/proc-macro/meta-macro-hygiene.rs

33 lines
1.0 KiB
Rust

//@ aux-build:make-macro.rs
//@ aux-build:meta-macro.rs
//@ edition:2018
//@ compile-flags: -Z span-debug -Z macro-backtrace -Z unpretty=expanded,hygiene -Z trim-diagnostic-paths=no
//@ check-pass
// ignore-tidy-linelength
//@ normalize-stdout-test "\d+#" -> "0#"
//@ normalize-stdout-test "expn\d{3,}" -> "expnNNN"
//@ normalize-stdout-test "extern crate compiler_builtins /\* \d+ \*/" -> "extern crate compiler_builtins /* NNN */"
//
// We don't care about symbol ids, so we set them all to 0
// in the stdout
#![no_std] // Don't load unnecessary hygiene information from std
extern crate std;
extern crate meta_macro;
macro_rules! produce_it {
() => {
// `print_def_site!` will respan the `$crate` identifier
// with `Span::def_site()`. This should cause it to resolve
// relative to `meta_macro`, *not* `make_macro` (despite
// the fact that `print_def_site` is produced by a
// `macro_rules!` macro in `make_macro`).
meta_macro::print_def_site!($crate::dummy!());
};
}
fn main() {
produce_it!();
}