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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /src/test/ui/const-generics/issues/issue-83765.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/const-generics/issues/issue-83765.rs')
-rw-r--r-- | src/test/ui/const-generics/issues/issue-83765.rs | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/src/test/ui/const-generics/issues/issue-83765.rs b/src/test/ui/const-generics/issues/issue-83765.rs deleted file mode 100644 index 71c164ab0..000000000 --- a/src/test/ui/const-generics/issues/issue-83765.rs +++ /dev/null @@ -1,116 +0,0 @@ -#![feature(generic_const_exprs)] -#![allow(incomplete_features)] - -trait TensorDimension { - const DIM: usize; - //~^ ERROR cycle detected when resolving instance - // FIXME Given the current state of the compiler its expected that we cycle here, - // but the cycle is still wrong. - const ISSCALAR: bool = Self::DIM == 0; - fn is_scalar(&self) -> bool { - Self::ISSCALAR - } -} - -trait TensorSize: TensorDimension { - fn size(&self) -> [usize; Self::DIM]; - fn inbounds(&self, index: [usize; Self::DIM]) -> bool { - index.iter().zip(self.size().iter()).all(|(i, s)| i < s) - } -} - -trait Broadcastable: TensorSize + Sized { - type Element; - fn bget(&self, index: [usize; Self::DIM]) -> Option<Self::Element>; - fn lazy_updim<const NEWDIM: usize>( - &self, - size: [usize; NEWDIM], - ) -> LazyUpdim<Self, { Self::DIM }, NEWDIM> { - assert!( - NEWDIM >= Self::DIM, - "Updimmed tensor cannot have fewer indices than the initial one." - ); - LazyUpdim { size, reference: &self } - } - fn bmap<T, F: Fn(Self::Element) -> T>(&self, foo: F) -> BMap<T, Self, F, { Self::DIM }> { - BMap { reference: self, closure: foo } - } -} - -struct LazyUpdim<'a, T: Broadcastable, const OLDDIM: usize, const DIM: usize> { - size: [usize; DIM], - reference: &'a T, -} - -impl<'a, T: Broadcastable, const DIM: usize> TensorDimension for LazyUpdim<'a, T, { T::DIM }, DIM> { - const DIM: usize = DIM; -} - -impl<'a, T: Broadcastable, const DIM: usize> TensorSize for LazyUpdim<'a, T, { T::DIM }, DIM> { - fn size(&self) -> [usize; DIM] { - self.size - } -} - -impl<'a, T: Broadcastable, const DIM: usize> Broadcastable for LazyUpdim<'a, T, { T::DIM }, DIM> { - type Element = T::Element; - fn bget(&self, index: [usize; DIM]) -> Option<Self::Element> { - assert!(DIM >= T::DIM); - if !self.inbounds(index) { - return None; - } - let size = self.size(); - let newindex: [usize; T::DIM] = Default::default(); - self.reference.bget(newindex) - } -} - -struct BMap<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> { - reference: &'a T, - closure: F, -} - -impl<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> TensorDimension - for BMap<'a, R, T, F, DIM> -{ - const DIM: usize = DIM; -} -impl<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> TensorSize - for BMap<'a, R, T, F, DIM> -{ - fn size(&self) -> [usize; DIM] { - self.reference.size() - } -} - -impl<'a, R, T: Broadcastable, F: Fn(T::Element) -> R, const DIM: usize> Broadcastable - for BMap<'a, R, T, F, DIM> -{ - type Element = R; - fn bget(&self, index: [usize; DIM]) -> Option<Self::Element> { - self.reference.bget(index).map(&self.closure) - } -} - -impl<T> TensorDimension for Vec<T> { - const DIM: usize = 1; -} -impl<T> TensorSize for Vec<T> { - fn size(&self) -> [usize; 1] { - [self.len()] - } -} -impl<T: Clone> Broadcastable for Vec<T> { - type Element = T; - fn bget(&self, index: [usize; 1]) -> Option<T> { - self.get(index[0]).cloned() - } -} - -fn main() { - let v = vec![1, 2, 3]; - let bv = v.lazy_updim([3, 4]); - let bbv = bv.bmap(|x| x * x); - - println!("The size of v is {:?}", bbv.bget([0, 2]).expect("Out of bounds.")); -} |