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add a test

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mark 2019-01-15 16:55:23 -06:00 committed by Mark Mansi
parent 1d94cc2a22
commit 3e790a7c30
2 changed files with 69 additions and 0 deletions
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19
src/test/ui/macros/macro-multiple-matcher-bindings.rs Normal file
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// Test that duplicate matcher binding names are caught at declaration time, rather than at macro
// invocation time.
macro_rules! foo1 {
($a:ident, $a:ident) => {}; //~ERROR duplicate matcher binding
($a:ident, $a:path) => {}; //~ERROR duplicate matcher binding
}
macro_rules! foo2 {
($a:ident) => {}; // OK
($a:path) => {}; // OK
}
macro_rules! foo3 {
($a:ident, $($a:ident),*) => {}; //~ERROR duplicate matcher binding
($($a:ident)+ # $($($a:path),+);*) => {}; //~ERROR duplicate matcher binding
}
fn main() {}

50
src/test/ui/macros/macro-multiple-matcher-bindings.stderr Normal file
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error: duplicate matcher binding
--> $DIR/macro-multiple-matcher-bindings.rs:5:16
|
LL | ($a:ident, $a:ident) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
|
note: previous declaration was here
--> $DIR/macro-multiple-matcher-bindings.rs:5:6
|
LL | ($a:ident, $a:ident) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
error: duplicate matcher binding
--> $DIR/macro-multiple-matcher-bindings.rs:6:16
|
LL | ($a:ident, $a:path) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^
|
note: previous declaration was here
--> $DIR/macro-multiple-matcher-bindings.rs:6:6
|
LL | ($a:ident, $a:path) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
error: duplicate matcher binding
--> $DIR/macro-multiple-matcher-bindings.rs:15:18
|
LL | ($a:ident, $($a:ident),*) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
|
note: previous declaration was here
--> $DIR/macro-multiple-matcher-bindings.rs:15:6
|
LL | ($a:ident, $($a:ident),*) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
error: duplicate matcher binding
--> $DIR/macro-multiple-matcher-bindings.rs:16:25
|
LL | ($($a:ident)+ # $($($a:path),+);*) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^
|
note: previous declaration was here
--> $DIR/macro-multiple-matcher-bindings.rs:16:8
|
LL | ($($a:ident)+ # $($($a:path),+);*) => {}; //~ERROR duplicate matcher binding
| ^^^^^^^^
error: aborting due to 4 previous errors