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Permit standalone generic parameters as const generic arguments in macros

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This commit is contained in:
varkor 2020-11-18 12:49:39 +00:00
parent c4f836ad1a
commit efcbf1b00b
5 changed files with 18 additions and 28 deletions
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13
src/test/ui/const-generics/macro_rules-braces.full.stderr
View file

@ -1,14 +1,3 @@
error: expressions must be enclosed in braces to be used as const generic arguments
--> $DIR/macro_rules-braces.rs:34:17
|
LL | let _: baz!(N);
| ^
|
help: enclose the `const` expression in braces
|
LL | let _: baz!({ N });
| ^ ^
error: expressions must be enclosed in braces to be used as const generic arguments
--> $DIR/macro_rules-braces.rs:54:17
|
@ -68,5 +57,5 @@ LL | let _: biz!({ N });
= note: this may fail depending on what value the parameter takes
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 6 previous errors
error: aborting due to 5 previous errors

13
src/test/ui/const-generics/macro_rules-braces.min.stderr
View file

@ -1,14 +1,3 @@
error: expressions must be enclosed in braces to be used as const generic arguments
--> $DIR/macro_rules-braces.rs:34:17
|
LL | let _: baz!(N);
| ^
|
help: enclose the `const` expression in braces
|
LL | let _: baz!({ N });
| ^ ^
error: expressions must be enclosed in braces to be used as const generic arguments
--> $DIR/macro_rules-braces.rs:54:17
|
@ -52,5 +41,5 @@ LL | let _: biz!({ N });
|
= help: const parameters may only be used as standalone arguments, i.e. `N`
error: aborting due to 6 previous errors
error: aborting due to 5 previous errors

2
src/test/ui/const-generics/macro_rules-braces.rs
View file

@ -31,7 +31,7 @@ fn test<const N: usize>() {
let _: foo!({{ N }}); //[min]~ ERROR generic parameters may not
let _: bar!(N);
let _: bar!({ N }); //[min]~ ERROR generic parameters may not
let _: baz!(N); //~ ERROR expressions must be enclosed in braces
let _: baz!(N);
let _: baz!({ N });
let _: baz!({{ N }}); //[min]~ ERROR generic parameters may not
let _: biz!(N);