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Auto merge of #50250 - csmoe:wf_traitref, r=scalexm

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Chalk lowering rule: WellFormed-TraitRef

Address chalk lowering "Implemented-From-Env" as part of #49177.
r? @nikomatsakis
This commit is contained in:
bors 2018-07-09 21:01:58 +00:00
commit 9bd8458c92
5 changed files with 82 additions and 23 deletions
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4
src/test/ui/chalkify/lower_env1.stderr
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@ -7,6 +7,7 @@ LL | #[rustc_dump_program_clauses] //~ ERROR program clause dump
= note: FromEnv(Self: Foo) :- FromEnv(Self: Bar).
= note: FromEnv(Self: Foo) :- FromEnv(Self: Bar).
= note: Implemented(Self: Bar) :- FromEnv(Self: Bar).
= note: WellFormed(Self: Bar) :- Implemented(Self: Bar), WellFormed(Self: Foo), WellFormed(Self: Foo).
error: program clause dump
--> $DIR/lower_env1.rs:19:1
@ -19,6 +20,9 @@ LL | #[rustc_dump_env_program_clauses] //~ ERROR program clause dump
= note: Implemented(Self: Bar) :- FromEnv(Self: Bar).
= note: Implemented(Self: Foo) :- FromEnv(Self: Foo).
= note: Implemented(Self: std::marker::Sized) :- FromEnv(Self: std::marker::Sized).
= note: WellFormed(Self: Bar) :- Implemented(Self: Bar), WellFormed(Self: Foo), WellFormed(Self: Foo).
= note: WellFormed(Self: Foo) :- Implemented(Self: Foo).
= note: WellFormed(Self: std::marker::Sized) :- Implemented(Self: std::marker::Sized).
error: aborting due to 2 previous errors

1
src/test/ui/chalkify/lower_trait.stderr
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@ -8,6 +8,7 @@ LL | #[rustc_dump_program_clauses] //~ ERROR program clause dump
= note: FromEnv(T: std::marker::Sized) :- FromEnv(Self: Foo<S, T, U>).
= note: FromEnv(U: std::marker::Sized) :- FromEnv(Self: Foo<S, T, U>).
= note: Implemented(Self: Foo<S, T, U>) :- FromEnv(Self: Foo<S, T, U>).
= note: WellFormed(Self: Foo<S, T, U>) :- Implemented(Self: Foo<S, T, U>), WellFormed(S: std::marker::Sized), WellFormed(T: std::marker::Sized), WellFormed(U: std::marker::Sized).
error: aborting due to previous error

1
src/test/ui/chalkify/lower_trait_higher_rank.stderr
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@ -8,6 +8,7 @@ LL | #[rustc_dump_program_clauses] //~ ERROR program clause dump
= note: FromEnv(F: std::ops::Fn<(&'a (u8, u16),)>) :- FromEnv(Self: Foo<F>).
= note: Implemented(Self: Foo<F>) :- FromEnv(Self: Foo<F>).
= note: ProjectionEq(<F as std::ops::FnOnce<(&'a (u8, u16),)>>::Output == &'a u8) :- FromEnv(Self: Foo<F>).
= note: WellFormed(Self: Foo<F>) :- Implemented(Self: Foo<F>), WellFormed(F: std::marker::Sized), forall<> { WellFormed(F: std::ops::Fn<(&'a (u8, u16),)>) }, forall<> { ProjectionEq(<F as std::ops::FnOnce<(&'a (u8, u16),)>>::Output == &'a u8) }.
error: aborting due to previous error

1
src/test/ui/chalkify/lower_trait_where_clause.stderr
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@ -11,6 +11,7 @@ LL | #[rustc_dump_program_clauses] //~ ERROR program clause dump
= note: Implemented(Self: Foo<'a, 'b, S, T, U>) :- FromEnv(Self: Foo<'a, 'b, S, T, U>).
= note: RegionOutlives('a : 'b) :- FromEnv(Self: Foo<'a, 'b, S, T, U>).
= note: TypeOutlives(U : 'b) :- FromEnv(Self: Foo<'a, 'b, S, T, U>).
= note: WellFormed(Self: Foo<'a, 'b, S, T, U>) :- Implemented(Self: Foo<'a, 'b, S, T, U>), WellFormed(S: std::marker::Sized), WellFormed(T: std::marker::Sized), WellFormed(S: std::fmt::Debug), WellFormed(T: std::borrow::Borrow<U>), RegionOutlives('a : 'b), TypeOutlives(U : 'b).
error: aborting due to previous error