diff options
Diffstat (limited to 'src/test')
4 files changed, 52 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/auxiliary/const_generic_lib.rs b/src/test/ui/const-generics/auxiliary/const_generic_lib.rs new file mode 100644 index 00000000000..901fb5dd054 --- /dev/null +++ b/src/test/ui/const-generics/auxiliary/const_generic_lib.rs @@ -0,0 +1,9 @@ +#![feature(const_generics)] + +pub struct Struct<const N: usize>(pub [u8; N]); + +pub type Alias = Struct<2>; + +pub fn function(value: Struct<3>) -> u8 { + value.0[0] +} diff --git a/src/test/ui/const-generics/const-argument-cross-crate-mismatch.rs b/src/test/ui/const-generics/const-argument-cross-crate-mismatch.rs new file mode 100644 index 00000000000..d863d097d5c --- /dev/null +++ b/src/test/ui/const-generics/const-argument-cross-crate-mismatch.rs @@ -0,0 +1,10 @@ +// aux-build:const_generic_lib.rs + +extern crate const_generic_lib; + +fn main() { + let _ = const_generic_lib::function(const_generic_lib::Struct([0u8, 1u8])); + //~^ ERROR mismatched types + let _: const_generic_lib::Alias = const_generic_lib::Struct([0u8, 1u8, 2u8]); + //~^ ERROR mismatched types +} diff --git a/src/test/ui/const-generics/const-argument-cross-crate-mismatch.stderr b/src/test/ui/const-generics/const-argument-cross-crate-mismatch.stderr new file mode 100644 index 00000000000..b7fd29ce706 --- /dev/null +++ b/src/test/ui/const-generics/const-argument-cross-crate-mismatch.stderr @@ -0,0 +1,21 @@ +error[E0308]: mismatched types + --> $DIR/const-argument-cross-crate-mismatch.rs:6:41 + | +LL | let _ = const_generic_lib::function(const_generic_lib::Struct([0u8, 1u8])); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `3usize`, found `2usize` + | + = note: expected type `const_generic_lib::Struct<3usize>` + found type `const_generic_lib::Struct<_: usize>` + +error[E0308]: mismatched types + --> $DIR/const-argument-cross-crate-mismatch.rs:8:39 + | +LL | let _: const_generic_lib::Alias = const_generic_lib::Struct([0u8, 1u8, 2u8]); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `2usize`, found `3usize` + | + = note: expected type `const_generic_lib::Struct<2usize>` + found type `const_generic_lib::Struct<_: usize>` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/const-generics/const-argument-cross-crate.rs b/src/test/ui/const-generics/const-argument-cross-crate.rs new file mode 100644 index 00000000000..98cf39a7ee1 --- /dev/null +++ b/src/test/ui/const-generics/const-argument-cross-crate.rs @@ -0,0 +1,12 @@ +// run-pass +// aux-build:const_generic_lib.rs + +extern crate const_generic_lib; + +struct Container(const_generic_lib::Alias); + +fn main() { + let res = const_generic_lib::function(const_generic_lib::Struct([14u8, 1u8, 2u8])); + assert_eq!(res, 14u8); + let _ = Container(const_generic_lib::Struct([0u8, 1u8])); +} |