diff --git a/tests/ui/macros/macro-rules-attr.rs b/tests/ui/macros/macro-rules-attr.rs new file mode 100644 index 000000000000..1d6f09b53e1a --- /dev/null +++ b/tests/ui/macros/macro-rules-attr.rs @@ -0,0 +1,90 @@ +//@ run-pass +//@ check-run-results +#![feature(macro_attr)] +#![warn(unused)] + +#[macro_export] +macro_rules! exported_attr { + attr($($args:tt)*) { $($body:tt)* } => { + println!( + "exported_attr: args={:?}, body={:?}", + stringify!($($args)*), + stringify!($($body)*), + ); + }; + { $($args:tt)* } => { + println!("exported_attr!({:?})", stringify!($($args)*)); + }; + attr() {} => { + unused_rule(); + }; + attr() {} => { + compile_error!(); + }; + {} => { + unused_rule(); + }; + {} => { + compile_error!(); + }; +} + +macro_rules! local_attr { + attr($($args:tt)*) { $($body:tt)* } => { + println!( + "local_attr: args={:?}, body={:?}", + stringify!($($args)*), + stringify!($($body)*), + ); + }; + { $($args:tt)* } => { + println!("local_attr!({:?})", stringify!($($args)*)); + }; + attr() {} => { //~ WARN: never used + unused_rule(); + }; + attr() {} => { + compile_error!(); + }; + {} => { //~ WARN: never used + unused_rule(); + }; + {} => { + compile_error!(); + }; +} + +fn main() { + #[crate::exported_attr] + struct S; + #[::exported_attr(arguments, key = "value")] + fn func(_arg: u32) {} + #[self::exported_attr(1)] + #[self::exported_attr(2)] + struct Twice; + + crate::exported_attr!(); + crate::exported_attr!(invoked, arguments); + + #[exported_attr] + struct S; + #[exported_attr(arguments, key = "value")] + fn func(_arg: u32) {} + #[exported_attr(1)] + #[exported_attr(2)] + struct Twice; + + exported_attr!(); + exported_attr!(invoked, arguments); + + #[local_attr] + struct S; + #[local_attr(arguments, key = "value")] + fn func(_arg: u32) {} + #[local_attr(1)] + #[local_attr(2)] + struct Twice; + + local_attr!(); + local_attr!(invoked, arguments); +} diff --git a/tests/ui/macros/macro-rules-attr.run.stdout b/tests/ui/macros/macro-rules-attr.run.stdout new file mode 100644 index 000000000000..77aa94d54f80 --- /dev/null +++ b/tests/ui/macros/macro-rules-attr.run.stdout @@ -0,0 +1,15 @@ +exported_attr: args="", body="struct S;" +exported_attr: args="arguments, key = \"value\"", body="fn func(_arg: u32) {}" +exported_attr: args="1", body="#[self::exported_attr(2)] struct Twice;" +exported_attr!("") +exported_attr!("invoked, arguments") +exported_attr: args="", body="struct S;" +exported_attr: args="arguments, key = \"value\"", body="fn func(_arg: u32) {}" +exported_attr: args="1", body="#[exported_attr(2)] struct Twice;" +exported_attr!("") +exported_attr!("invoked, arguments") +local_attr: args="", body="struct S;" +local_attr: args="arguments, key = \"value\"", body="fn func(_arg: u32) {}" +local_attr: args="1", body="#[local_attr(2)] struct Twice;" +local_attr!("") +local_attr!("invoked, arguments") diff --git a/tests/ui/macros/macro-rules-attr.stderr b/tests/ui/macros/macro-rules-attr.stderr new file mode 100644 index 000000000000..567664cd73d3 --- /dev/null +++ b/tests/ui/macros/macro-rules-attr.stderr @@ -0,0 +1,21 @@ +warning: rule #3 of macro `local_attr` is never used + --> $DIR/macro-rules-attr.rs:43:9 + | +LL | attr() {} => { + | ^^ ^^ + | +note: the lint level is defined here + --> $DIR/macro-rules-attr.rs:4:9 + | +LL | #![warn(unused)] + | ^^^^^^ + = note: `#[warn(unused_macro_rules)]` implied by `#[warn(unused)]` + +warning: rule #5 of macro `local_attr` is never used + --> $DIR/macro-rules-attr.rs:49:5 + | +LL | {} => { + | ^^ + +warning: 2 warnings emitted +