Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 384 insertions, 0 deletions

diff --git a/src/test/incremental/const-generics/hash-tyvid-regression-1.rs b/src/test/incremental/const-generics/hash-tyvid-regression-1.rs
new file mode 100644
index 000000000..5ff7b19d8
--- /dev/null
+++ b/src/test/incremental/const-generics/hash-tyvid-regression-1.rs
@@ -0,0 +1,16 @@
+// revisions: cfail
+#![feature(generic_const_exprs, adt_const_params)]
+#![allow(incomplete_features)]
+// regression test for #77650
+fn c<T, const N: std::num::NonZeroUsize>()
+where
+    [T; N.get()]: Sized,
+{
+    use std::convert::TryFrom;
+    <[T; N.get()]>::try_from(())
+    //~^ error: the trait bound
+    //~| error: the trait bound
+    //~| error: mismatched types
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/hash-tyvid-regression-2.rs b/src/test/incremental/const-generics/hash-tyvid-regression-2.rs
new file mode 100644
index 000000000..5cdd43cd7
--- /dev/null
+++ b/src/test/incremental/const-generics/hash-tyvid-regression-2.rs
@@ -0,0 +1,18 @@
+// revisions: cfail
+#![feature(generic_const_exprs, adt_const_params)]
+#![allow(incomplete_features)]
+// regression test for #77650
+struct C<T, const N: core::num::NonZeroUsize>([T; N.get()])
+where
+    [T; N.get()]: Sized;
+impl<'a, const N: core::num::NonZeroUsize, A, B: PartialEq<A>> PartialEq<&'a [A]> for C<B, N>
+where
+    [B; N.get()]: Sized,
+{
+    fn eq(&self, other: &&'a [A]) -> bool {
+        self.0 == other
+        //~^ error: can't compare
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/hash-tyvid-regression-3.rs b/src/test/incremental/const-generics/hash-tyvid-regression-3.rs
new file mode 100644
index 000000000..61f568f79
--- /dev/null
+++ b/src/test/incremental/const-generics/hash-tyvid-regression-3.rs
@@ -0,0 +1,26 @@
+// revisions: cfail
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+// regression test for #79251
+struct Node<const D: usize>
+where
+    SmallVec<{ D * 2 }>: ,
+{
+    keys: SmallVec<{ D * 2 }>,
+}
+
+impl<const D: usize> Node<D>
+where
+    SmallVec<{ D * 2 }>: ,
+{
+    fn new() -> Self {
+        let mut node = Node::new();
+        node.keys.some_function();
+        //~^ error: no method named
+        node
+    }
+}
+
+struct SmallVec<const D: usize> {}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/hash-tyvid-regression-4.rs b/src/test/incremental/const-generics/hash-tyvid-regression-4.rs
new file mode 100644
index 000000000..12e8ac7ab
--- /dev/null
+++ b/src/test/incremental/const-generics/hash-tyvid-regression-4.rs
@@ -0,0 +1,40 @@
+// revisions: cfail
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+// regression test for #79251
+#[derive(Debug)]
+struct Node<K, const D: usize>
+where
+    SmallVec<K, { D * 2 }>: ,
+{
+    keys: SmallVec<K, { D * 2 }>,
+}
+
+impl<K, const D: usize> Node<K, D>
+where
+    SmallVec<K, { D * 2 }>: ,
+{
+    fn new() -> Self {
+        panic!()
+    }
+
+    #[inline(never)]
+    fn split(&mut self, i: usize, k: K, right: bool) -> Node<K, D> {
+        let mut node = Node::new();
+        node.keys.push(k);
+        //~^ error: no method named
+        node
+    }
+}
+
+#[derive(Debug)]
+struct SmallVec<T, const D: usize> {
+    data: [T; D],
+}
+impl<T, const D: usize> SmallVec<T, D> {
+    fn new() -> Self {
+        panic!()
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/issue-61338.rs b/src/test/incremental/const-generics/issue-61338.rs
new file mode 100644
index 000000000..e9d67fee2
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-61338.rs
@@ -0,0 +1,12 @@
+// revisions:rpass1
+
+struct Struct<T>(T);
+
+impl<T, const N: usize> Struct<[T; N]> {
+    fn f() {}
+    fn g() { Self::f(); }
+}
+
+fn main() {
+    Struct::<[u32; 3]>::g();
+}
diff --git a/src/test/incremental/const-generics/issue-61516.rs b/src/test/incremental/const-generics/issue-61516.rs
new file mode 100644
index 000000000..c781484d1
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-61516.rs
@@ -0,0 +1,14 @@
+// revisions:rpass1
+
+struct FakeArray<T, const N: usize>(T);
+
+impl<T, const N: usize> FakeArray<T, N> {
+    fn len(&self) -> usize {
+        N
+    }
+}
+
+fn main() {
+    let fa = FakeArray::<u32, { 32 }>(1);
+    assert_eq!(fa.len(), 32);
+}
diff --git a/src/test/incremental/const-generics/issue-62536.rs b/src/test/incremental/const-generics/issue-62536.rs
new file mode 100644
index 000000000..93c1dbf44
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-62536.rs
@@ -0,0 +1,9 @@
+// revisions:cfail1
+struct S<T, const N: usize>([T; N]);
+
+fn f<T, const N: usize>(x: T) -> S<T, {N}> { panic!() }
+
+fn main() {
+    f(0u8);
+    //[cfail1]~^ ERROR type annotations needed
+}
diff --git a/src/test/incremental/const-generics/issue-64087.rs b/src/test/incremental/const-generics/issue-64087.rs
new file mode 100644
index 000000000..81c813531
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-64087.rs
@@ -0,0 +1,9 @@
+// revisions:cfail1
+
+fn combinator<T, const S: usize>() -> [T; S] {}
+//[cfail1]~^ ERROR mismatched types
+
+fn main() {
+    combinator().into_iter();
+    //[cfail1]~^ ERROR type annotations needed
+}
diff --git a/src/test/incremental/const-generics/issue-65623.rs b/src/test/incremental/const-generics/issue-65623.rs
new file mode 100644
index 000000000..22bbcbcab
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-65623.rs
@@ -0,0 +1,12 @@
+// revisions:rpass1
+pub struct Foo<T, const N: usize>([T; 0]);
+
+impl<T, const N: usize> Foo<T, {N}> {
+    pub fn new() -> Self {
+        Foo([])
+    }
+}
+
+fn main() {
+    let _: Foo<u32, 0> = Foo::new();
+}
diff --git a/src/test/incremental/const-generics/issue-68477.rs b/src/test/incremental/const-generics/issue-68477.rs
new file mode 100644
index 000000000..9e35cf93d
--- /dev/null
+++ b/src/test/incremental/const-generics/issue-68477.rs
@@ -0,0 +1,25 @@
+// edition:2018
+// revisions:rpass1
+
+// Needed to supply generic arguments to the anon const in `[(); FOO]`.
+#![feature(generic_const_exprs)]
+
+const FOO: usize = 1;
+
+struct Container<T> {
+    val: std::marker::PhantomData<T>,
+    blah: [(); FOO]
+}
+
+async fn dummy() {}
+
+async fn foo() {
+    let a: Container<&'static ()>;
+    dummy().await;
+}
+
+fn is_send<T: Send>(_: T) {}
+
+fn main() {
+    is_send(foo());
+}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-1.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-1.rs
new file mode 100644
index 000000000..8262a2a21
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-1.rs
@@ -0,0 +1,23 @@
+// revisions: cfail
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features, unused_braces)]
+
+trait Delegates<T> {}
+
+struct FileCap<const Op: bool> {}
+
+fn writes_to_path<C>(cap: &C)
+where
+    C: Delegates<FileCap<{ false }>>,
+{
+    writes_to_specific_path(&cap);
+    //~^ error: the trait bound
+}
+
+fn writes_to_specific_path<C>(cap: &C)
+where
+    C: Delegates<FileCap<{ false }>>,
+{
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-2.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-2.rs
new file mode 100644
index 000000000..92bbcba4b
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-2.rs
@@ -0,0 +1,18 @@
+// revisions: rpass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+struct Z;
+const fn one() -> usize {
+    1
+}
+
+fn from_a_to_b<T>(source: [u8; one()]) -> T {
+    todo!()
+}
+
+fn not_main() {
+    let _: &Z = from_a_to_b([0; 1]);
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-3.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-3.rs
new file mode 100644
index 000000000..fc114f224
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-77708-3.rs
@@ -0,0 +1,22 @@
+// revisions: rpass
+#![feature(generic_const_exprs, adt_const_params)]
+#![allow(incomplete_features)]
+
+use std::{convert::TryFrom, num::NonZeroUsize};
+
+struct A<const N: NonZeroUsize>([u8; N.get()])
+where
+    [u8; N.get()]: Sized;
+
+impl<'a, const N: NonZeroUsize> TryFrom<&'a [u8]> for A<N>
+where
+    [u8; N.get()]: Sized,
+{
+    type Error = ();
+    fn try_from(slice: &'a [u8]) -> Result<A<N>, ()> {
+        let _x = <&[u8; N.get()] as TryFrom<&[u8]>>::try_from(slice);
+        unimplemented!();
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-82034.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-82034.rs
new file mode 100644
index 000000000..c05d8355c
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-82034.rs
@@ -0,0 +1,34 @@
+// revisions: rpass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+pub trait IsTrue {}
+pub trait IsFalse {}
+
+pub struct Assert<const CHECK: bool> {}
+
+impl IsTrue for Assert<true> {}
+impl IsFalse for Assert<false> {}
+
+pub struct SliceConstWriter<'a, const N: usize> {
+    ptr: &'a mut [u8],
+}
+impl<'a, const N: usize> SliceConstWriter<'a, { N }> {
+    pub fn from_slice(vec: &'a mut [u8]) -> Self {
+        Self { ptr: vec }
+    }
+
+    pub fn convert<const NN: usize>(mut self) -> SliceConstWriter<'a, { NN }> {
+        SliceConstWriter { ptr: self.ptr }
+    }
+}
+
+impl<'a, const N: usize> SliceConstWriter<'a, { N }>
+where
+    Assert<{ N >= 2 }>: IsTrue,
+{
+    pub fn write_u8(mut self) -> SliceConstWriter<'a, { N - 2 }> {
+        self.convert()
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-1.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-1.rs
new file mode 100644
index 000000000..8886a556d
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-1.rs
@@ -0,0 +1,23 @@
+// revisions: rpass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+pub struct Ref<'a, const NUM: usize>(&'a i32);
+
+impl<'a, const NUM: usize> Ref<'a, NUM> {
+    pub fn foo<const A: usize>(r: Ref<'a, A>) -> Self
+    where
+        ([(); NUM - A], [(); A - NUM]): Sized,
+    {
+        Self::bar(r)
+    }
+
+    pub fn bar<const A: usize>(r: Ref<'a, A>) -> Self
+    where
+        ([(); NUM - A], [(); A - NUM]): Sized,
+    {
+        Self(r.0)
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-2.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-2.rs
new file mode 100644
index 000000000..db1e2fc2a
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-2.rs
@@ -0,0 +1,14 @@
+// revisions: cfail
+#![allow(incomplete_features)]
+#![feature(generic_const_exprs)]
+
+pub struct Ref<'a>(&'a i32);
+
+impl<'a> Ref<'a> {
+    pub fn foo<const A: usize>() -> [(); A - 0] {
+        Self::foo()
+        //~^ error: type annotations needed
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-3.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-3.rs
new file mode 100644
index 000000000..5b2f5edc8
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-85031-3.rs
@@ -0,0 +1,25 @@
+// revisions: rpass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+fn test<const SIZE: usize>() {}
+
+trait SomeTrait {
+    const SIZE: usize;
+}
+
+struct A<'a, T> {
+    some_ref: &'a str,
+    _maker: core::marker::PhantomData<T>,
+}
+
+impl<'a, T: SomeTrait> A<'a, T>
+where
+    [(); T::SIZE]: ,
+{
+    fn call_test() {
+        test::<{ T::SIZE }>();
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-86953.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-86953.rs
new file mode 100644
index 000000000..d659c5676
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-86953.rs
@@ -0,0 +1,16 @@
+// revisions: rpass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+struct Foo;
+impl<'a> std::ops::Add<&'a Foo> for Foo
+where
+    [(); 0 + 0]: Sized,
+{
+    type Output = ();
+    fn add(self, _: &Foo) -> Self::Output {
+        loop {}
+    }
+}
+
+fn main() {}
diff --git a/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-88022.rs b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-88022.rs
new file mode 100644
index 000000000..5f5435ba9
--- /dev/null
+++ b/src/test/incremental/const-generics/try_unify_abstract_const_regression_tests/issue-88022.rs
@@ -0,0 +1,28 @@
+// revisions: cfail
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features, unused_braces)]
+
+struct Buffer<T, const S: usize>
+where
+    [(); { S * 2 }]: Default,
+{
+    data: [T; { S * 2 }],
+}
+
+struct BufferIter<'a, T, const S: usize>(&'a Buffer<T, S>)
+where
+    [(); { S * 2 }]: Default;
+
+impl<'a, T, const S: usize> Iterator for BufferIter<'a, T, S> {
+    //~^ error: the trait bound
+    //~^^ error: unconstrained generic constant
+    type Item = &'a T;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        //~^ error: the trait bound
+        //~^^ error: unconstrained generic constant
+        None
+    }
+}
+
+fn main() {}