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ices/77919.rs: fixed with errors #519

Merged
merged 1 commit into from
Oct 26, 2020
Merged

ices/77919.rs: fixed with errors #519

merged 1 commit into from
Oct 26, 2020

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Issue: rust-lang/rust#77919

trait TypeVal<T> {
    const VAL: T;
}
struct Five;
struct Multiply<N, M> {
    _n: PhantomData,
}
impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}

fn main() {
    [1; <Multiply<Five, Five>>::VAL];
}
=== stdout ===
=== stderr ===
error[E0412]: cannot find type `PhantomData` in this scope
 --> /home/runner/work/glacier/glacier/ices/77919.rs:6:9
  |
6 |     _n: PhantomData,
  |         ^^^^^^^^^^^ not found in this scope
  |
help: consider importing one of these items
  |
1 | use core::marker::PhantomData;
  |
1 | use std::marker::PhantomData;
  |

error[E0412]: cannot find type `VAL` in this scope
 --> /home/runner/work/glacier/glacier/ices/77919.rs:8:63
  |
8 | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
  |          -                                                    ^^^ not found in this scope
  |          |
  |          help: you might be missing a type parameter: `, VAL`

error[E0046]: not all trait items implemented, missing: `VAL`
 --> /home/runner/work/glacier/glacier/ices/77919.rs:8:1
  |
2 |     const VAL: T;
  |     ------------- `VAL` from trait
...
8 | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `VAL` in implementation

error: any use of this value will cause an error
 --> /home/runner/work/glacier/glacier/ices/77919.rs:2:5
  |
2 |     const VAL: T;
  |     ^^^^^^^^^^^^^ no MIR body is available for DefId(0:5 ~ 77919[317d]::TypeVal::VAL)
  |
  = note: `#[deny(const_err)]` on by default

error[E0080]: evaluation of constant value failed
  --> /home/runner/work/glacier/glacier/ices/77919.rs:11:9
   |
11 |     [1; <Multiply<Five, Five>>::VAL];
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0046, E0080, E0412.
For more information about an error, try `rustc --explain E0046`.
==============

=== stdout ===
=== stderr ===
error[E0412]: cannot find type `PhantomData` in this scope
 --> /home/runner/work/glacier/glacier/ices/77919.rs:6:9
  |
6 |     _n: PhantomData,
  |         ^^^^^^^^^^^ not found in this scope
  |
help: consider importing one of these items
  |
1 | use core::marker::PhantomData;
  |
1 | use std::marker::PhantomData;
  |

error[E0412]: cannot find type `VAL` in this scope
 --> /home/runner/work/glacier/glacier/ices/77919.rs:8:63
  |
8 | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
  |          -                                                    ^^^ not found in this scope
  |          |
  |          help: you might be missing a type parameter: `, VAL`

error[E0046]: not all trait items implemented, missing: `VAL`
 --> /home/runner/work/glacier/glacier/ices/77919.rs:8:1
  |
2 |     const VAL: T;
  |     ------------- `VAL` from trait
...
8 | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `VAL` in implementation

error: any use of this value will cause an error
 --> /home/runner/work/glacier/glacier/ices/77919.rs:2:5
  |
2 |     const VAL: T;
  |     ^^^^^^^^^^^^^ no MIR body is available for DefId(0:5 ~ 77919[317d]::TypeVal::VAL)
  |
  = note: `#[deny(const_err)]` on by default

error[E0080]: evaluation of constant value failed
  --> /home/runner/work/glacier/glacier/ices/77919.rs:11:9
   |
11 |     [1; <Multiply<Five, Five>>::VAL];
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0046, E0080, E0412.
For more information about an error, try `rustc --explain E0046`.
==============
@Alexendoo Alexendoo merged commit 9c90e60 into master Oct 26, 2020
@Alexendoo Alexendoo deleted the autofix/ices/77919.rs branch October 26, 2020 12:54
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2 participants