From 5c8fdc1954544f0e8bb3da0dfa8c4516731b0b84 Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Mon, 14 Oct 2019 10:45:25 +0900 Subject: [PATCH 1/5] Add test for issue-44153 --- src/test/ui/associated-types/issue-44153.rs | 19 +++++++++++++++++++ .../ui/associated-types/issue-44153.stderr | 16 ++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 src/test/ui/associated-types/issue-44153.rs create mode 100644 src/test/ui/associated-types/issue-44153.stderr diff --git a/src/test/ui/associated-types/issue-44153.rs b/src/test/ui/associated-types/issue-44153.rs new file mode 100644 index 0000000000000..2101cb61a94d1 --- /dev/null +++ b/src/test/ui/associated-types/issue-44153.rs @@ -0,0 +1,19 @@ +pub trait Array { + type Element; +} + +pub trait Visit { + fn visit() {} +} + +impl Array for () { + type Element = (); +} + +impl<'a> Visit for () where + (): Array, +{} + +fn main() { + <() as Visit>::visit(); //~ ERROR: type mismatch resolving +} diff --git a/src/test/ui/associated-types/issue-44153.stderr b/src/test/ui/associated-types/issue-44153.stderr new file mode 100644 index 0000000000000..b62a866a20be3 --- /dev/null +++ b/src/test/ui/associated-types/issue-44153.stderr @@ -0,0 +1,16 @@ +error[E0271]: type mismatch resolving `<() as Array>::Element == &()` + --> $DIR/issue-44153.rs:18:5 + | +LL | fn visit() {} + | ---------- required by `Visit::visit` +... +LL | <() as Visit>::visit(); + | ^^^^^^^^^^^^^^^^^^^^ expected (), found &() + | + = note: expected type `()` + found type `&()` + = note: required because of the requirements on the impl of `Visit` for `()` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0271`. From 6323180b4a354c937c42d3483f5716d2d08261df Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Mon, 14 Oct 2019 10:45:56 +0900 Subject: [PATCH 2/5] Add test for issue-47486 --- src/test/ui/issues/issue-47486.rs | 4 ++++ src/test/ui/issues/issue-47486.stderr | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+) create mode 100644 src/test/ui/issues/issue-47486.rs create mode 100644 src/test/ui/issues/issue-47486.stderr diff --git a/src/test/ui/issues/issue-47486.rs b/src/test/ui/issues/issue-47486.rs new file mode 100644 index 0000000000000..d686f02a9fe39 --- /dev/null +++ b/src/test/ui/issues/issue-47486.rs @@ -0,0 +1,4 @@ +fn main() { + () < std::mem::size_of::<_>(); //~ ERROR: mismatched types + [0u8; std::mem::size_of::<_>()]; //~ ERROR: type annotations needed +} diff --git a/src/test/ui/issues/issue-47486.stderr b/src/test/ui/issues/issue-47486.stderr new file mode 100644 index 0000000000000..af6e3010f7958 --- /dev/null +++ b/src/test/ui/issues/issue-47486.stderr @@ -0,0 +1,19 @@ +error[E0308]: mismatched types + --> $DIR/issue-47486.rs:2:10 + | +LL | () < std::mem::size_of::<_>(); + | ^^^^^^^^^^^^^^^^^^^^^^^^ expected (), found usize + | + = note: expected type `()` + found type `usize` + +error[E0282]: type annotations needed + --> $DIR/issue-47486.rs:3:11 + | +LL | [0u8; std::mem::size_of::<_>()]; + | ^^^^^^^^^^^^^^^^^^^^^^ cannot infer type + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0282, E0308. +For more information about an error, try `rustc --explain E0282`. From f653db92d691ba3ebeb77dc75b6cb51cbf31519b Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Mon, 14 Oct 2019 10:46:58 +0900 Subject: [PATCH 3/5] Add test for issue-48010 --- src/test/ui/associated-types/issue-48010.rs | 23 +++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 src/test/ui/associated-types/issue-48010.rs diff --git a/src/test/ui/associated-types/issue-48010.rs b/src/test/ui/associated-types/issue-48010.rs new file mode 100644 index 0000000000000..70e30c132d05c --- /dev/null +++ b/src/test/ui/associated-types/issue-48010.rs @@ -0,0 +1,23 @@ +// check-pass + +#![crate_type = "lib"] + +pub struct Foo; + +pub struct Path { + _inner: T::Slice, +} + +pub trait Bar: Sized { + type Slice: ?Sized; + + fn open(_: &Path); +} + +impl Bar for Foo { + type Slice = [u8]; + + fn open(_: &Path) { + unimplemented!() + } +} From 88a495cdcff92a7322c5721da3dc12acc04fb1a9 Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Mon, 14 Oct 2019 10:47:14 +0900 Subject: [PATCH 4/5] Add test for issue-48027 --- src/test/ui/associated-item/issue-48027.rs | 8 +++++++ .../ui/associated-item/issue-48027.stderr | 21 +++++++++++++++++++ 2 files changed, 29 insertions(+) create mode 100644 src/test/ui/associated-item/issue-48027.rs create mode 100644 src/test/ui/associated-item/issue-48027.stderr diff --git a/src/test/ui/associated-item/issue-48027.rs b/src/test/ui/associated-item/issue-48027.rs new file mode 100644 index 0000000000000..c9b4ccd3e8a99 --- /dev/null +++ b/src/test/ui/associated-item/issue-48027.rs @@ -0,0 +1,8 @@ +trait Bar { + const X: usize; + fn return_n(&self) -> [u8; Bar::X]; //~ ERROR: type annotations needed +} + +impl dyn Bar {} //~ ERROR: the trait `Bar` cannot be made into an object + +fn main() {} diff --git a/src/test/ui/associated-item/issue-48027.stderr b/src/test/ui/associated-item/issue-48027.stderr new file mode 100644 index 0000000000000..562146a426d23 --- /dev/null +++ b/src/test/ui/associated-item/issue-48027.stderr @@ -0,0 +1,21 @@ +error[E0038]: the trait `Bar` cannot be made into an object + --> $DIR/issue-48027.rs:6:6 + | +LL | const X: usize; + | - the trait cannot contain associated consts like `X` +... +LL | impl dyn Bar {} + | ^^^^^^^ the trait `Bar` cannot be made into an object + +error[E0283]: type annotations needed: cannot resolve `_: Bar` + --> $DIR/issue-48027.rs:3:32 + | +LL | const X: usize; + | --------------- required by `Bar::X` +LL | fn return_n(&self) -> [u8; Bar::X]; + | ^^^^^^ + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0038, E0283. +For more information about an error, try `rustc --explain E0038`. From f6e01e8d4098eccb9234368a576342cb781265eb Mon Sep 17 00:00:00 2001 From: Yuki Okushi Date: Mon, 14 Oct 2019 10:47:39 +0900 Subject: [PATCH 5/5] Add test for issue-48638 --- src/test/ui/wf/issue-48638.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 src/test/ui/wf/issue-48638.rs diff --git a/src/test/ui/wf/issue-48638.rs b/src/test/ui/wf/issue-48638.rs new file mode 100644 index 0000000000000..f078431033216 --- /dev/null +++ b/src/test/ui/wf/issue-48638.rs @@ -0,0 +1,21 @@ +// check-pass + +pub trait D {} +pub struct DT; +impl D for DT {} + +pub trait A: Sized { + type AS; +} + +pub struct As(R); + +pub struct AT; +impl A for AT { + type AS = As; +} + +#[repr(packed)] +struct S(>::AS); + +fn main() {}