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