rust/tests/ui/hygiene/generate-mod.rs

50 lines
1.3 KiB
Rust

// This is an equivalent of issue #50504, but for declarative macros.
#![feature(decl_macro, rustc_attrs)]
macro genmod($FromOutside: ident, $Outer: ident) {
type A = $FromOutside;
struct $Outer;
mod inner {
type A = $FromOutside; // `FromOutside` shouldn't be available from here
type Inner = $Outer; // `Outer` shouldn't be available from here
}
}
#[rustc_macro_transparency = "transparent"]
macro genmod_transparent() {
type A = FromOutside;
struct Outer;
mod inner {
type A = FromOutside; //~ ERROR cannot find type `FromOutside` in this scope
type Inner = Outer; //~ ERROR cannot find type `Outer` in this scope
}
}
macro_rules! genmod_legacy { () => {
type A = FromOutside;
struct Outer;
mod inner {
type A = FromOutside; //~ ERROR cannot find type `FromOutside` in this scope
type Inner = Outer; //~ ERROR cannot find type `Outer` in this scope
}
}}
fn check() {
struct FromOutside;
genmod!(FromOutside, Outer); //~ ERROR cannot find type `FromOutside` in this scope
//~| ERROR cannot find type `Outer` in this scope
}
fn check_transparent() {
struct FromOutside;
genmod_transparent!();
}
fn check_legacy() {
struct FromOutside;
genmod_legacy!();
}
fn main() {}