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Add a failing case to `tests/ui/macros/macro-interpolation`. 

This test currently tests the successful paths for the
`Interpolated`/`NtTy`/`Path` case in `parse_path_inner`, but it doesn't
test the failure path.
This commit is contained in:
Nicholas Nethercote 2023-08-09 15:24:06 +10:00
parent e8f733370f
commit 4ab3e9d5b9
2 changed files with 18 additions and 2 deletions
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4
tests/ui/macros/macro-interpolation.rs
View File

@ -1,5 +1,3 @@
// run-pass
macro_rules! overly_complicated {
($fnname:ident, $arg:ident, $ty:ty, $body:block, $val:expr, $pat:pat, $res:path) =>
({
@ -21,12 +19,14 @@ macro_rules! qpath {
(ty, <$type:ty as $trait:ty>::$name:ident) => {
<$type as $trait>::$name
//~^ ERROR expected identifier, found `!`
};
}
pub fn main() {
let _: qpath!(path, <str as ToOwned>::Owned);
let _: qpath!(ty, <str as ToOwned>::Owned);
let _: qpath!(ty, <str as !>::Owned);
assert!(overly_complicated!(f, x, Option<usize>, { return Some(x); },
Some(8), Some(y), y) == 8)

16
tests/ui/macros/macro-interpolation.stderr Normal file
View File

@ -0,0 +1,16 @@
error: expected identifier, found `!`
--> $DIR/macro-interpolation.rs:21:19
|
LL | <$type as $trait>::$name
| ^^^^^^ expected identifier
...
LL | let _: qpath!(ty, <str as !>::Owned);
| -----------------------------
| |
| this macro call doesn't expand to a type
| in this macro invocation
|
= note: this error originates in the macro `qpath` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error