79 lines
2.0 KiB
Rust
79 lines
2.0 KiB
Rust
// revisions: full min
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#![cfg_attr(full, allow(incomplete_features))]
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#![cfg_attr(full, feature(const_generics))]
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#![cfg_attr(min, feature(min_const_generics))]
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mod m {
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pub const P: usize = 0;
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}
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const Q: usize = 0;
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fn test<const N: usize>() {
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struct Foo<const M: usize>;
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macro_rules! foo {
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($x:expr) => {
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[u8; $x] //[full]~ ERROR constant expression depends
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}
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}
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macro_rules! bar {
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($x:expr) => {
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[u8; { $x }] //[full]~ ERROR constant expression depends
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}
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}
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macro_rules! baz {
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( $x:expr) => {
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Foo<$x> //[full]~ ERROR constant expression depends
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}
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}
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macro_rules! biz {
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($x:expr) => {
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Foo<{ $x }> //[full]~ ERROR constant expression depends
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};
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}
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let _: foo!(N);
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let _: foo!({ N });
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let _: foo!({{ N }}); //[min]~ ERROR generic parameters may not
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let _: foo!(Q);
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let _: foo!(m::P);
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let _: bar!(N);
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let _: bar!({ N }); //[min]~ ERROR generic parameters may not
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let _: bar!(Q);
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let _: bar!(m::P);
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let _: baz!(N);
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let _: baz!({ N });
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let _: baz!({{ N }}); //[min]~ ERROR generic parameters may not
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let _: baz!(Q);
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let _: baz!({ m::P });
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let _: baz!(m::P); //~ ERROR expressions must be enclosed in braces
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let _: biz!(N);
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let _: biz!({ N }); //[min]~ ERROR generic parameters may not
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let _: biz!(Q);
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let _: biz!(m::P);
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let _: foo!(3);
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let _: foo!({ 3 });
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let _: foo!({{ 3 }});
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let _: bar!(3);
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let _: bar!({ 3 });
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let _: baz!(3);
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let _: baz!({ 3 });
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let _: baz!({{ 3 }});
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let _: biz!(3);
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let _: biz!({ 3 });
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let _: foo!(10 + 7);
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let _: foo!({ 10 + 7 });
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let _: foo!({{ 10 + 7 }});
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let _: bar!(10 + 7);
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let _: bar!({ 10 + 7 });
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let _: baz!(10 + 7); //~ ERROR expressions must be enclosed in braces
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let _: baz!({ 10 + 7 });
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let _: baz!({{ 10 + 7 }});
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let _: biz!(10 + 7);
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let _: biz!({ 10 + 7 });
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}
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fn main() {
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test::<3>();
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}
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