Merge pull request #655 from fanninpm/add-ices-2021-02-15

Add some ICEs

Author: Alexendoo

ices/77647.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+cat > out.rs <<'EOF'
+#![feature(const_generics, const_evaluatable_checked)]
+#![allow(incomplete_features)]
+struct A<T, const N: core::num::NonZeroUsize>([T; N.get()]) where [T; N.get()]: Sized;
+EOF
+
+rustdoc out.rs --output-format json

ices/82034.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+rustc --test -C incremental=foo - <<'EOF'
+#![feature(const_generics)]
+#![feature(const_evaluatable_checked)]
+#![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 {
+    // broken
+    pub fn write_u8(mut self) -> SliceConstWriter<'a, {N-2}> {
+        self.convert()
+    }
+    
+    //working
+    // pub fn write_u8(mut self) -> SliceConstWriter<'a, {N-2}> {
+    //     SliceConstWriter {
+    //         ptr: self.ptr
+    //     }
+    // }
+}
+
+
+#[cfg(test)]
+mod tests {
+    use crate::SliceConstWriter;
+
+    #[test]
+    fn it_works() {
+        let mut buff = [0u8; 128];
+        let mut a = SliceConstWriter::<10>::from_slice(&mut buff);
+
+        let mut a = a.write_u8().write_u8().write_u8().write_u8().write_u8();
+    }
+}
+EOF

ices/82079.rs

@@ -0,0 +1,119 @@
+#![crate_type = "lib"]
+
+mod convenience_operators {
+    use crate::{Op, Relation};
+    use std::ops::AddAssign;
+    use std::ops::Mul;
+
+    impl<C: Op> Relation<C> {
+        pub fn map<F: Fn(C::D) -> D2 + 'static, D2: 'static>(
+            self,
+            f: F,
+        ) -> Relation<impl Op<D = D2, R = C::R>> {
+            self.map_dr(move |x, r| (f(x), r))
+        }
+    }
+
+    impl<K: 'static, V: 'static, C: Op<D = (K, V)>> Relation<C> {
+        pub fn semijoin<C2: Op<D = K, R = R2>, R2, R3: AddAssign<R3>>(
+            self,
+            other: Relation<C2>,
+        ) -> Relation<impl Op<D = C::D, R = R3>>
+        where
+            C::R: Mul<R2, Output = R3>,
+        {
+            self.join(other.map(|x| (x, ()))).map(|(k, x, ())| (k, x))
+        }
+    }
+}
+
+mod core {
+    mod operator {
+        mod join {
+            use super::Op;
+            use crate::core::Relation;
+            use std::ops::{AddAssign, Mul};
+            struct Join<LC, RC> {
+                _left: LC,
+                _right: RC,
+            }
+            impl<
+                    LC: Op<D = (K, LD), R = LR>,
+                    RC: Op<D = (K, RD), R = RR>,
+                    K: 'static,
+                    LD: 'static,
+                    LR: AddAssign<LR> + Mul<RR, Output = OR>,
+                    RD: 'static,
+                    RR: AddAssign<RR>,
+                    OR: AddAssign<OR>,
+                > Op for Join<LC, RC>
+            {
+                type D = (K, LD, RD);
+                type R = OR;
+            }
+            impl<K: 'static, D: 'static, C: Op<D = (K, D)>> Relation<C> {
+                pub fn join<C2: Op<D = (K, D2)>, D2: 'static, OR: AddAssign<OR>>(
+                    self,
+                    other: Relation<C2>,
+                ) -> Relation<impl Op<D = (K, D, D2), R = OR>>
+                where
+                    C::R: Mul<C2::R, Output = OR>,
+                {
+                    Relation {
+                        inner: Join {
+                            _left: self.inner,
+                            _right: other.inner,
+                        },
+                    }
+                }
+            }
+        }
+        mod map {
+            use super::Op;
+            use crate::core::Relation;
+            use std::ops::AddAssign;
+            struct Map<C, MF> {
+                _inner: C,
+                _op: MF,
+            }
+            impl<
+                    D1,
+                    R1,
+                    D2: 'static,
+                    R2: AddAssign<R2>,
+                    C: Op<D = D1, R = R1>,
+                    MF: Fn(D1, R1) -> (D2, R2),
+                > Op for Map<C, MF>
+            {
+                type D = D2;
+                type R = R2;
+            }
+            impl<C: Op> Relation<C> {
+                pub fn map_dr<F: Fn(C::D, C::R) -> (D2, R2), D2: 'static, R2: AddAssign<R2>>(
+                    self,
+                    f: F,
+                ) -> Relation<impl Op<D = D2, R = R2>> {
+                    Relation {
+                        inner: Map {
+                            _inner: self.inner,
+                            _op: f,
+                        },
+                    }
+                }
+            }
+        }
+        use std::ops::AddAssign;
+        pub trait Op {
+            type D: 'static;
+            type R: AddAssign<Self::R>;
+        }
+    }
+    pub use self::operator::Op;
+    #[derive(Clone)]
+    pub struct Relation<C> {
+        inner: C,
+    }
+}
+
+use self::core::Op;
+pub use self::core::Relation;

ices/82126.rs

@@ -0,0 +1,17 @@
+use std::sync::Mutex;
+
+struct MarketMultiplier {}
+
+impl MarketMultiplier {
+    fn buy(&mut self) -> &mut usize {
+        todo!()
+    }
+}
+
+async fn buy_lock(generator: &Mutex<MarketMultiplier>) -> LockedMarket<'_> {
+    LockedMarket(generator.lock().unwrap().buy())
+}
+
+struct LockedMarket<T>(T);
+
+fn main() {}

ices/82139.rs

@@ -0,0 +1,15 @@
+trait Trait {
+    type Associated;
+    fn func() -> Self::Associated;
+}
+
+trait Bound {}
+pub struct Struct;
+
+impl Trait for Struct {
+    type Associated = impl Bound;
+
+    fn func() -> Self::Associated {
+        Some(42).map(|_| j)
+    }
+}

ices/82156.rs

@@ -0,0 +1,3 @@
+fn main() {
+    super();
+}