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Diffstat (limited to 'tests/ui/rust-2018/uniform-paths/macro-rules.rs')
-rw-r--r-- | tests/ui/rust-2018/uniform-paths/macro-rules.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/ui/rust-2018/uniform-paths/macro-rules.rs b/tests/ui/rust-2018/uniform-paths/macro-rules.rs new file mode 100644 index 000000000..2d9a6a9a9 --- /dev/null +++ b/tests/ui/rust-2018/uniform-paths/macro-rules.rs @@ -0,0 +1,43 @@ +// edition:2018 + +#![feature(decl_macro)] + +mod m1 { + // Non-exported legacy macros are treated as `pub(crate)`. + macro_rules! legacy_macro { () => () } + + use legacy_macro as _; // OK + pub(crate) use legacy_macro as _; // OK + pub use legacy_macro as _; //~ ERROR `legacy_macro` is only public within the crate, and cannot be re-exported outside +} + +mod m2 { + macro_rules! legacy_macro { () => () } + + #[allow(non_camel_case_types)] + type legacy_macro = u8; + + // Legacy macro imports don't prevent names from other namespaces from being imported. + use legacy_macro as _; // OK +} + +mod m3 { + macro legacy_macro() {} + + fn f() { + macro_rules! legacy_macro { () => () } + + // Legacy macro imports create ambiguities with other names in the same namespace. + use legacy_macro as _; //~ ERROR `legacy_macro` is ambiguous + } +} + +mod exported { + // Exported legacy macros are treated as `pub`. + #[macro_export] + macro_rules! legacy_macro { () => () } + + pub use legacy_macro as _; // OK +} + +fn main() {} |