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add more complex param order test

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This commit is contained in:
Bastian Kauschke 2020-07-23 13:19:35 +02:00
parent 6dc6a1f947
commit 9910f156df
2 changed files with 20 additions and 1 deletions
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7
src/test/ui/const-generics/argument_order.rs
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@ -6,4 +6,11 @@ struct Bad<const N: usize, T> { //~ ERROR type parameters must be declared prior
another: T, another: T,
} }
struct AlsoBad<const N: usize, 'a, T, 'b, const M: usize, U> {
//~^ ERROR type parameters must be declared prior
//~| ERROR lifetime parameters must be declared prior
a: &'a T,
b: &'b U,
}
fn main() { } fn main() { }

14
src/test/ui/const-generics/argument_order.stderr
View File

@ -4,6 +4,18 @@ error: type parameters must be declared prior to const parameters
LL | struct Bad<const N: usize, T> { LL | struct Bad<const N: usize, T> {
| -----------------^- help: reorder the parameters: lifetimes, then types, then consts: `<T, const N: usize>` | -----------------^- help: reorder the parameters: lifetimes, then types, then consts: `<T, const N: usize>`
error: lifetime parameters must be declared prior to const parameters
--> $DIR/argument_order.rs:9:32
|
LL | struct AlsoBad<const N: usize, 'a, T, 'b, const M: usize, U> {
| -----------------^^-----^^-------------------- help: reorder the parameters: lifetimes, then types, then consts: `<'a, 'b, T, U, const N: usize, const M: usize>`
error: type parameters must be declared prior to const parameters
--> $DIR/argument_order.rs:9:36
|
LL | struct AlsoBad<const N: usize, 'a, T, 'b, const M: usize, U> {
| ---------------------^----------------------^- help: reorder the parameters: lifetimes, then types, then consts: `<'a, 'b, T, U, const N: usize, const M: usize>`
warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/argument_order.rs:1:12 --> $DIR/argument_order.rs:1:12
| |
@ -13,5 +25,5 @@ LL | #![feature(const_generics)]
= note: `#[warn(incomplete_features)]` on by default = note: `#[warn(incomplete_features)]` on by default
= note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
error: aborting due to previous error; 1 warning emitted error: aborting due to 3 previous errors; 1 warning emitted