From ca9d72540b0f90dee4a090b362843e9a38606520 Mon Sep 17 00:00:00 2001 From: b-naber Date: Sun, 22 May 2022 17:07:35 +0200 Subject: [PATCH] update tests --- ...er-to-static-comparing-against-free.stderr | 15 +-- .../ui/nll/impl-dyn-trait-static-bound.rs | 116 ++++++++++++++++++ .../ui/nll/impl-dyn-trait-static-bound.stderr | 105 ++++++++++++++++ .../user-annotations/adt-nullary-enums.stderr | 16 +-- 4 files changed, 237 insertions(+), 15 deletions(-) create mode 100644 src/test/ui/nll/impl-dyn-trait-static-bound.rs create mode 100644 src/test/ui/nll/impl-dyn-trait-static-bound.stderr diff --git a/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr b/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr index 30ef343b261..3ab55b370c2 100644 --- a/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr +++ b/src/test/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr @@ -72,14 +72,15 @@ LL | | } error[E0597]: `a` does not live long enough --> $DIR/propagate-approximated-shorter-to-static-comparing-against-free.rs:30:26 | -LL | let cell = Cell::new(&a); - | ----------^^- - | | | - | | borrowed value does not live long enough - | argument requires that `a` is borrowed for `'static` +LL | let cell = Cell::new(&a); + | ^^ borrowed value does not live long enough ... -LL | } - | - `a` dropped here while still borrowed +LL | / foo(cell, |cell_a, cell_x| { +LL | | cell_x.set(cell_a.get()); // forces 'a: 'x, implies 'a = 'static -> borrow error +LL | | }) + | |______- argument requires that `a` is borrowed for `'static` +LL | } + | - `a` dropped here while still borrowed error: aborting due to 2 previous errors diff --git a/src/test/ui/nll/impl-dyn-trait-static-bound.rs b/src/test/ui/nll/impl-dyn-trait-static-bound.rs new file mode 100644 index 00000000000..ea835f2e052 --- /dev/null +++ b/src/test/ui/nll/impl-dyn-trait-static-bound.rs @@ -0,0 +1,116 @@ +#![allow(dead_code)] +#![feature(nll)] + +mod foo { + trait OtherTrait<'a> {} + impl<'a> OtherTrait<'a> for &'a () {} + + trait ObjectTrait {} + trait MyTrait { + fn use_self(&self) -> &(); + } + trait Irrelevant {} + + impl MyTrait for dyn ObjectTrait { + fn use_self(&self) -> &() { panic!() } + } + impl Irrelevant for dyn ObjectTrait {} + + fn use_it<'a, T>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + val.use_self::() + //~^ ERROR borrowed data escapes outside + } +} + +mod bar { + trait ObjectTrait {} + trait MyTrait { + fn use_self(&self) -> &(); + } + trait Irrelevant {} + + impl MyTrait for dyn ObjectTrait { + fn use_self(&self) -> &() { panic!() } + } + impl Irrelevant for dyn ObjectTrait {} + + fn use_it<'a>(val: &'a dyn ObjectTrait) -> &'a () { + val.use_self() + } +} + +mod baz { + trait ObjectTrait {} + trait MyTrait { + fn use_self(&self) -> &(); + } + trait Irrelevant {} + + impl MyTrait for Box { + fn use_self(&self) -> &() { panic!() } + } + impl Irrelevant for Box {} + + fn use_it<'a>(val: &'a Box) -> &'a () { + val.use_self() + } +} + +mod bat { + trait OtherTrait<'a> {} + impl<'a> OtherTrait<'a> for &'a () {} + + trait ObjectTrait {} + + impl dyn ObjectTrait { + fn use_self(&self) -> &() { panic!() } + } + + fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + val.use_self() + //~^ ERROR borrowed data escapes outside + } +} + +mod ban { + trait OtherTrait<'a> {} + impl<'a> OtherTrait<'a> for &'a () {} + + trait ObjectTrait {} + trait MyTrait { + fn use_self(&self) -> &() { panic!() } + } + trait Irrelevant { + fn use_self(&self) -> &() { panic!() } + } + + impl MyTrait for dyn ObjectTrait {} + + fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> { + val.use_self() + //~^ ERROR borrowed data escapes outside + } +} + +mod bal { + trait OtherTrait<'a> {} + impl<'a> OtherTrait<'a> for &'a () {} + + trait ObjectTrait {} + trait MyTrait { + fn use_self(&self) -> &() { panic!() } + } + trait Irrelevant { + fn use_self(&self) -> &() { panic!() } + } + + impl MyTrait for dyn ObjectTrait {} + impl Irrelevant for dyn ObjectTrait {} + + fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + MyTrait::use_self(val) + //~^ ERROR borrowed data escapes outside + } +} + +fn main() {} diff --git a/src/test/ui/nll/impl-dyn-trait-static-bound.stderr b/src/test/ui/nll/impl-dyn-trait-static-bound.stderr new file mode 100644 index 00000000000..dd6b50839ef --- /dev/null +++ b/src/test/ui/nll/impl-dyn-trait-static-bound.stderr @@ -0,0 +1,105 @@ +error[E0521]: borrowed data escapes outside of function + --> $DIR/impl-dyn-trait-static-bound.rs:20:9 + | +LL | fn use_it<'a, T>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + | -- --- `val` is a reference that is only valid in the function body + | | + | lifetime `'a` defined here +LL | val.use_self::() + | ^^^^^^^^^^^^^^^^^^^ + | | + | `val` escapes the function body here + | argument requires that `'a` must outlive `'static` + | +note: the used `impl` has a `'static` requirement + --> $DIR/impl-dyn-trait-static-bound.rs:14:32 + | +LL | impl MyTrait for dyn ObjectTrait { + | ^^^^^^^^^^^^^^ this has an implicit `'static` lifetime requirement +LL | fn use_self(&self) -> &() { panic!() } + | -------- calling this method introduces the `impl`'s 'static` requirement +help: consider relaxing the implicit `'static` requirement + | +LL | impl MyTrait for dyn ObjectTrait + '_ { + | ++++ + +error[E0521]: borrowed data escapes outside of function + --> $DIR/impl-dyn-trait-static-bound.rs:70:9 + | +LL | fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + | -- --- `val` is a reference that is only valid in the function body + | | + | lifetime `'a` defined here +LL | val.use_self() + | ^^^^^^^^^^^^^^ + | | + | `val` escapes the function body here + | argument requires that `'a` must outlive `'static` + | +note: the used `impl` has a `'static` requirement + --> $DIR/impl-dyn-trait-static-bound.rs:65:14 + | +LL | impl dyn ObjectTrait { + | ^^^^^^^^^^^ this has an implicit `'static` lifetime requirement +LL | fn use_self(&self) -> &() { panic!() } + | -------- calling this method introduces the `impl`'s 'static` requirement +help: consider relaxing the implicit `'static` requirement + | +LL | impl dyn ObjectTrait + '_ { + | ++++ + +error[E0521]: borrowed data escapes outside of function + --> $DIR/impl-dyn-trait-static-bound.rs:90:9 + | +LL | fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> { + | -- --- `val` is a reference that is only valid in the function body + | | + | lifetime `'a` defined here +LL | val.use_self() + | ^^^^^^^^^^^^^^ + | | + | `val` escapes the function body here + | argument requires that `'a` must outlive `'static` + | +note: the used `impl` has a `'static` requirement + --> $DIR/impl-dyn-trait-static-bound.rs:87:26 + | +LL | fn use_self(&self) -> &() { panic!() } + | -------- calling this method introduces the `impl`'s 'static` requirement +... +LL | impl MyTrait for dyn ObjectTrait {} + | ^^^^^^^^^^^ this has an implicit `'static` lifetime requirement +help: consider relaxing the implicit `'static` requirement + | +LL | impl MyTrait for dyn ObjectTrait + '_ {} + | ++++ + +error[E0521]: borrowed data escapes outside of function + --> $DIR/impl-dyn-trait-static-bound.rs:111:9 + | +LL | fn use_it<'a>(val: &'a dyn ObjectTrait) -> impl OtherTrait<'a> + 'a { + | -- --- `val` is a reference that is only valid in the function body + | | + | lifetime `'a` defined here +LL | MyTrait::use_self(val) + | ^^^^^^^^^^^^^^^^^^^^^^ + | | + | `val` escapes the function body here + | argument requires that `'a` must outlive `'static` + | +note: the used `impl` has a `'static` requirement + --> $DIR/impl-dyn-trait-static-bound.rs:107:26 + | +LL | fn use_self(&self) -> &() { panic!() } + | -------- calling this method introduces the `impl`'s 'static` requirement +... +LL | impl MyTrait for dyn ObjectTrait {} + | ^^^^^^^^^^^ this has an implicit `'static` lifetime requirement +help: consider relaxing the implicit `'static` requirement + | +LL | impl MyTrait for dyn ObjectTrait + '_ {} + | ++++ + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0521`. diff --git a/src/test/ui/nll/user-annotations/adt-nullary-enums.stderr b/src/test/ui/nll/user-annotations/adt-nullary-enums.stderr index bb703412228..3326fa521fc 100644 --- a/src/test/ui/nll/user-annotations/adt-nullary-enums.stderr +++ b/src/test/ui/nll/user-annotations/adt-nullary-enums.stderr @@ -1,14 +1,14 @@ error[E0597]: `c` does not live long enough --> $DIR/adt-nullary-enums.rs:33:41 | -LL | SomeEnum::SomeVariant(Cell::new(&c)), - | ----------^^- - | | | - | | borrowed value does not live long enough - | argument requires that `c` is borrowed for `'static` -... -LL | } - | - `c` dropped here while still borrowed +LL | / combine( +LL | | SomeEnum::SomeVariant(Cell::new(&c)), + | | ^^ borrowed value does not live long enough +LL | | SomeEnum::SomeOtherVariant::>, +LL | | ); + | |_____- argument requires that `c` is borrowed for `'static` +LL | } + | - `c` dropped here while still borrowed error[E0597]: `c` does not live long enough --> $DIR/adt-nullary-enums.rs:41:41