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-rw-r--r--third_party/rust/pin-project-lite/tests/ui/conflict-drop.rs15
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/conflict-drop.stderr16
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/conflict-unpin.rs40
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/conflict-unpin.stderr50
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/invalid-bounds.rs15
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/invalid-bounds.stderr21
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/invalid.rs25
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/invalid.stderr17
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.rs10
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.stderr83
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.rs19
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.stderr13
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/packed.rs19
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/packed.stderr55
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/proper_unpin.rs41
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/proper_unpin.stderr43
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.rs12
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.stderr11
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/unsupported.rs27
-rw-r--r--third_party/rust/pin-project-lite/tests/ui/unsupported.stderr29
20 files changed, 561 insertions, 0 deletions
diff --git a/third_party/rust/pin-project-lite/tests/ui/conflict-drop.rs b/third_party/rust/pin-project-lite/tests/ui/conflict-drop.rs
new file mode 100644
index 0000000000..870059d62f
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/conflict-drop.rs
@@ -0,0 +1,15 @@
+use pin_project_lite::pin_project;
+
+pin_project! { //~ ERROR E0119
+ struct Foo<T, U> {
+ #[pin]
+ future: T,
+ field: U,
+ }
+}
+
+impl<T, U> Drop for Foo<T, U> {
+ fn drop(&mut self) {}
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/conflict-drop.stderr b/third_party/rust/pin-project-lite/tests/ui/conflict-drop.stderr
new file mode 100644
index 0000000000..6679d3d244
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/conflict-drop.stderr
@@ -0,0 +1,16 @@
+error[E0119]: conflicting implementations of trait `_::MustNotImplDrop` for type `Foo<_, _>`:
+ --> $DIR/conflict-drop.rs:3:1
+ |
+3 | / pin_project! { //~ ERROR E0119
+4 | | struct Foo<T, U> {
+5 | | #[pin]
+6 | | future: T,
+7 | | field: U,
+8 | | }
+9 | | }
+ | | ^
+ | | |
+ | |_first implementation here
+ | conflicting implementation for `Foo<_, _>`
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
diff --git a/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.rs b/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.rs
new file mode 100644
index 0000000000..f702f064de
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.rs
@@ -0,0 +1,40 @@
+use pin_project_lite::pin_project;
+
+// The same implementation.
+
+pin_project! { //~ ERROR E0119
+ struct Foo<T, U> {
+ #[pin]
+ future: T,
+ field: U,
+ }
+}
+
+// conflicting implementations
+impl<T, U> Unpin for Foo<T, U> where T: Unpin {} // Conditional Unpin impl
+
+// The implementation that under different conditions.
+
+pin_project! { //~ ERROR E0119
+ struct Bar<T, U> {
+ #[pin]
+ future: T,
+ field: U,
+ }
+}
+
+// conflicting implementations
+impl<T, U> Unpin for Bar<T, U> {} // Non-conditional Unpin impl
+
+pin_project! { //~ ERROR E0119
+ struct Baz<T, U> {
+ #[pin]
+ future: T,
+ field: U,
+ }
+}
+
+// conflicting implementations
+impl<T: Unpin, U: Unpin> Unpin for Baz<T, U> {} // Conditional Unpin impl
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.stderr b/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.stderr
new file mode 100644
index 0000000000..8065fde58b
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/conflict-unpin.stderr
@@ -0,0 +1,50 @@
+error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Foo<_, _>`:
+ --> $DIR/conflict-unpin.rs:5:1
+ |
+5 | / pin_project! { //~ ERROR E0119
+6 | | struct Foo<T, U> {
+7 | | #[pin]
+8 | | future: T,
+9 | | field: U,
+10 | | }
+11 | | }
+ | |_^ conflicting implementation for `Foo<_, _>`
+...
+14 | impl<T, U> Unpin for Foo<T, U> where T: Unpin {} // Conditional Unpin impl
+ | --------------------------------------------- first implementation here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Bar<_, _>`:
+ --> $DIR/conflict-unpin.rs:18:1
+ |
+18 | / pin_project! { //~ ERROR E0119
+19 | | struct Bar<T, U> {
+20 | | #[pin]
+21 | | future: T,
+22 | | field: U,
+23 | | }
+24 | | }
+ | |_^ conflicting implementation for `Bar<_, _>`
+...
+27 | impl<T, U> Unpin for Bar<T, U> {} // Non-conditional Unpin impl
+ | ------------------------------ first implementation here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Baz<_, _>`:
+ --> $DIR/conflict-unpin.rs:29:1
+ |
+29 | / pin_project! { //~ ERROR E0119
+30 | | struct Baz<T, U> {
+31 | | #[pin]
+32 | | future: T,
+33 | | field: U,
+34 | | }
+35 | | }
+ | |_^ conflicting implementation for `Baz<_, _>`
+...
+38 | impl<T: Unpin, U: Unpin> Unpin for Baz<T, U> {} // Conditional Unpin impl
+ | -------------------------------------------- first implementation here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
diff --git a/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.rs b/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.rs
new file mode 100644
index 0000000000..980bb952ea
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.rs
@@ -0,0 +1,15 @@
+use pin_project_lite::pin_project;
+
+pin_project! {
+ struct A<T: 'static : ?Sized> { //~ ERROR no rules expected the token `:`
+ field: T,
+ }
+}
+
+pin_project! {
+ struct B<T: Sized : 'static> { //~ ERROR expected one of `+`, `,`, `=`, or `>`, found `:`
+ field: T,
+ }
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.stderr b/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.stderr
new file mode 100644
index 0000000000..ebd1da8179
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/invalid-bounds.stderr
@@ -0,0 +1,21 @@
+error: no rules expected the token `:`
+ --> $DIR/invalid-bounds.rs:4:25
+ |
+4 | struct A<T: 'static : ?Sized> { //~ ERROR no rules expected the token `:`
+ | ^ no rules expected this token in macro call
+
+error: expected one of `+`, `,`, `=`, or `>`, found `:`
+ --> $DIR/invalid-bounds.rs:9:1
+ |
+9 | / pin_project! {
+10 | | struct B<T: Sized : 'static> { //~ ERROR expected one of `+`, `,`, `=`, or `>`, found `:`
+11 | | field: T,
+12 | | }
+13 | | }
+ | | ^
+ | | |
+ | | expected one of `+`, `,`, `=`, or `>`
+ | |_unexpected token
+ | in this macro invocation
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
diff --git a/third_party/rust/pin-project-lite/tests/ui/invalid.rs b/third_party/rust/pin-project-lite/tests/ui/invalid.rs
new file mode 100644
index 0000000000..e0ea61d4f7
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/invalid.rs
@@ -0,0 +1,25 @@
+use pin_project_lite::pin_project;
+
+pin_project! {
+ struct A<T> {
+ #[pin()] //~ ERROR no rules expected the token `(`
+ pinned: T,
+ }
+}
+
+pin_project! {
+ #[pin] //~ ERROR cannot find attribute `pin` in this scope
+ struct B<T> {
+ pinned: T,
+ }
+}
+
+pin_project! {
+ struct C<T> {
+ #[pin]
+ #[pin] //~ ERROR no rules expected the token `#`
+ pinned: T,
+ }
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/invalid.stderr b/third_party/rust/pin-project-lite/tests/ui/invalid.stderr
new file mode 100644
index 0000000000..f780e2e69a
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/invalid.stderr
@@ -0,0 +1,17 @@
+error: no rules expected the token `(`
+ --> $DIR/invalid.rs:5:14
+ |
+5 | #[pin()] //~ ERROR no rules expected the token `(`
+ | ^ no rules expected this token in macro call
+
+error: no rules expected the token `#`
+ --> $DIR/invalid.rs:20:9
+ |
+20 | #[pin] //~ ERROR no rules expected the token `#`
+ | ^ no rules expected this token in macro call
+
+error: cannot find attribute `pin` in this scope
+ --> $DIR/invalid.rs:11:7
+ |
+11 | #[pin] //~ ERROR cannot find attribute `pin` in this scope
+ | ^^^
diff --git a/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.rs b/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.rs
new file mode 100644
index 0000000000..87a737e2fa
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.rs
@@ -0,0 +1,10 @@
+use pin_project_lite::pin_project;
+
+pin_project! { //~ ERROR E0496
+ pub struct Foo<'__pin, T> { //~ ERROR E0263
+ #[pin]
+ field: &'__pin mut T,
+ }
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.stderr b/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.stderr
new file mode 100644
index 0000000000..db4f5a8bb0
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/overlapping_lifetime_names.stderr
@@ -0,0 +1,83 @@
+error[E0263]: lifetime name `'__pin` declared twice in the same scope
+ --> $DIR/overlapping_lifetime_names.rs:4:20
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ^^^^^^ declared twice
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_- previous declaration here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0263]: lifetime name `'__pin` declared twice in the same scope
+ --> $DIR/overlapping_lifetime_names.rs:4:20
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ^^^^^^ declared twice
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_- previous declaration here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0496]: lifetime name `'__pin` shadows a lifetime name that is already in scope
+ --> $DIR/overlapping_lifetime_names.rs:3:1
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ------ first declared here
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_^ lifetime '__pin already in scope
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0496]: lifetime name `'__pin` shadows a lifetime name that is already in scope
+ --> $DIR/overlapping_lifetime_names.rs:3:1
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ------ first declared here
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_^ lifetime '__pin already in scope
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0263]: lifetime name `'__pin` declared twice in the same scope
+ --> $DIR/overlapping_lifetime_names.rs:4:20
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ^^^^^^ declared twice
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_- previous declaration here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error[E0263]: lifetime name `'__pin` declared twice in the same scope
+ --> $DIR/overlapping_lifetime_names.rs:4:20
+ |
+3 | / pin_project! { //~ ERROR E0496
+4 | | pub struct Foo<'__pin, T> { //~ ERROR E0263
+ | | ^^^^^^ declared twice
+5 | | #[pin]
+6 | | field: &'__pin mut T,
+7 | | }
+8 | | }
+ | |_- previous declaration here
+ |
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
diff --git a/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.rs b/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.rs
new file mode 100644
index 0000000000..1338524307
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.rs
@@ -0,0 +1,19 @@
+use pin_project_lite::pin_project;
+use std::marker::PhantomPinned;
+
+pin_project! {
+ struct Foo<T> {
+ #[pin]
+ inner: T,
+ }
+}
+
+struct __Origin {}
+
+impl Unpin for __Origin {}
+
+fn is_unpin<T: Unpin>() {}
+
+fn main() {
+ is_unpin::<Foo<PhantomPinned>>(); //~ ERROR E0277
+}
diff --git a/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.stderr b/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.stderr
new file mode 100644
index 0000000000..73db6f932b
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/overlapping_unpin_struct.stderr
@@ -0,0 +1,13 @@
+error[E0277]: the trait bound `std::marker::PhantomPinned: std::marker::Unpin` is not satisfied in `_::__Origin<'_, std::marker::PhantomPinned>`
+ --> $DIR/overlapping_unpin_struct.rs:18:5
+ |
+15 | fn is_unpin<T: Unpin>() {}
+ | -------- ----- required by this bound in `is_unpin`
+...
+18 | is_unpin::<Foo<PhantomPinned>>(); //~ ERROR E0277
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `_::__Origin<'_, std::marker::PhantomPinned>`, the trait `std::marker::Unpin` is not implemented for `std::marker::PhantomPinned`
+ |
+ = help: the following implementations were found:
+ <std::marker::PhantomPinned as std::marker::Unpin>
+ = note: required because it appears within the type `_::__Origin<'_, std::marker::PhantomPinned>`
+ = note: required because of the requirements on the impl of `std::marker::Unpin` for `Foo<std::marker::PhantomPinned>`
diff --git a/third_party/rust/pin-project-lite/tests/ui/packed.rs b/third_party/rust/pin-project-lite/tests/ui/packed.rs
new file mode 100644
index 0000000000..0bccc1f216
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/packed.rs
@@ -0,0 +1,19 @@
+use pin_project_lite::pin_project;
+
+pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+ #[repr(packed, C)]
+ struct A {
+ #[pin]
+ field: u16,
+ }
+}
+
+pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+ #[repr(packed(2))]
+ struct C {
+ #[pin]
+ field: u32,
+ }
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/packed.stderr b/third_party/rust/pin-project-lite/tests/ui/packed.stderr
new file mode 100644
index 0000000000..1853377dec
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/packed.stderr
@@ -0,0 +1,55 @@
+error: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
+ --> $DIR/packed.rs:3:1
+ |
+3 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+4 | | #[repr(packed, C)]
+5 | | struct A {
+6 | | #[pin]
+7 | | field: u16,
+8 | | }
+9 | | }
+ | |_^
+ |
+note: lint level defined here
+ --> $DIR/packed.rs:3:1
+ |
+3 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+4 | | #[repr(packed, C)]
+5 | | struct A {
+6 | | #[pin]
+7 | | field: u16,
+8 | | }
+9 | | }
+ | |_^
+ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+ = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
+ = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
+ --> $DIR/packed.rs:11:1
+ |
+11 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+12 | | #[repr(packed(2))]
+13 | | struct C {
+14 | | #[pin]
+15 | | field: u32,
+16 | | }
+17 | | }
+ | |_^
+ |
+note: lint level defined here
+ --> $DIR/packed.rs:11:1
+ |
+11 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block
+12 | | #[repr(packed(2))]
+13 | | struct C {
+14 | | #[pin]
+15 | | field: u32,
+16 | | }
+17 | | }
+ | |_^
+ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+ = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
+ = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
+ = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
diff --git a/third_party/rust/pin-project-lite/tests/ui/proper_unpin.rs b/third_party/rust/pin-project-lite/tests/ui/proper_unpin.rs
new file mode 100644
index 0000000000..3c85f2d77f
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/proper_unpin.rs
@@ -0,0 +1,41 @@
+use pin_project_lite::pin_project;
+use std::marker::PhantomPinned;
+
+struct Inner<T> {
+ val: T,
+}
+
+pin_project! {
+ struct Foo<T, U> {
+ #[pin]
+ inner: Inner<T>,
+ other: U,
+ }
+}
+
+pin_project! {
+ pub struct TrivialBounds {
+ #[pin]
+ field1: PhantomPinned,
+ }
+}
+
+pin_project! {
+ struct Bar<'a, T, U> {
+ #[pin]
+ inner: &'a mut Inner<T>,
+ other: U,
+ }
+}
+
+fn is_unpin<T: Unpin>() {}
+
+fn main() {
+ is_unpin::<Foo<PhantomPinned, ()>>(); //~ ERROR E0277
+ is_unpin::<Foo<(), PhantomPinned>>(); // Ok
+ is_unpin::<Foo<PhantomPinned, PhantomPinned>>(); //~ ERROR E0277
+
+ is_unpin::<TrivialBounds>(); //~ ERROR E0277
+
+ is_unpin::<Bar<'_, PhantomPinned, PhantomPinned>>(); //~ Ok
+}
diff --git a/third_party/rust/pin-project-lite/tests/ui/proper_unpin.stderr b/third_party/rust/pin-project-lite/tests/ui/proper_unpin.stderr
new file mode 100644
index 0000000000..52eb80223e
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/proper_unpin.stderr
@@ -0,0 +1,43 @@
+error[E0277]: the trait bound `std::marker::PhantomPinned: std::marker::Unpin` is not satisfied in `_::__Origin<'_, std::marker::PhantomPinned, ()>`
+ --> $DIR/proper_unpin.rs:34:5
+ |
+31 | fn is_unpin<T: Unpin>() {}
+ | -------- ----- required by this bound in `is_unpin`
+...
+34 | is_unpin::<Foo<PhantomPinned, ()>>(); //~ ERROR E0277
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `_::__Origin<'_, std::marker::PhantomPinned, ()>`, the trait `std::marker::Unpin` is not implemented for `std::marker::PhantomPinned`
+ |
+ = help: the following implementations were found:
+ <std::marker::PhantomPinned as std::marker::Unpin>
+ = note: required because it appears within the type `Inner<std::marker::PhantomPinned>`
+ = note: required because it appears within the type `_::__Origin<'_, std::marker::PhantomPinned, ()>`
+ = note: required because of the requirements on the impl of `std::marker::Unpin` for `Foo<std::marker::PhantomPinned, ()>`
+
+error[E0277]: the trait bound `std::marker::PhantomPinned: std::marker::Unpin` is not satisfied in `_::__Origin<'_, std::marker::PhantomPinned, std::marker::PhantomPinned>`
+ --> $DIR/proper_unpin.rs:36:5
+ |
+31 | fn is_unpin<T: Unpin>() {}
+ | -------- ----- required by this bound in `is_unpin`
+...
+36 | is_unpin::<Foo<PhantomPinned, PhantomPinned>>(); //~ ERROR E0277
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `_::__Origin<'_, std::marker::PhantomPinned, std::marker::PhantomPinned>`, the trait `std::marker::Unpin` is not implemented for `std::marker::PhantomPinned`
+ |
+ = help: the following implementations were found:
+ <std::marker::PhantomPinned as std::marker::Unpin>
+ = note: required because it appears within the type `Inner<std::marker::PhantomPinned>`
+ = note: required because it appears within the type `_::__Origin<'_, std::marker::PhantomPinned, std::marker::PhantomPinned>`
+ = note: required because of the requirements on the impl of `std::marker::Unpin` for `Foo<std::marker::PhantomPinned, std::marker::PhantomPinned>`
+
+error[E0277]: the trait bound `std::marker::PhantomPinned: std::marker::Unpin` is not satisfied in `_::__Origin<'_>`
+ --> $DIR/proper_unpin.rs:38:5
+ |
+31 | fn is_unpin<T: Unpin>() {}
+ | -------- ----- required by this bound in `is_unpin`
+...
+38 | is_unpin::<TrivialBounds>(); //~ ERROR E0277
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^ within `_::__Origin<'_>`, the trait `std::marker::Unpin` is not implemented for `std::marker::PhantomPinned`
+ |
+ = help: the following implementations were found:
+ <std::marker::PhantomPinned as std::marker::Unpin>
+ = note: required because it appears within the type `_::__Origin<'_>`
+ = note: required because of the requirements on the impl of `std::marker::Unpin` for `TrivialBounds`
diff --git a/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.rs b/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.rs
new file mode 100644
index 0000000000..984cc2a219
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.rs
@@ -0,0 +1,12 @@
+use pin_project_lite::pin_project;
+
+pin_project! {
+ struct Foo {
+ #[pin]
+ inner: u8,
+ }
+}
+
+impl Unpin for __Origin {} //~ ERROR E0412,E0321
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.stderr b/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.stderr
new file mode 100644
index 0000000000..77ad2dc315
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/unpin_sneaky.stderr
@@ -0,0 +1,11 @@
+error[E0412]: cannot find type `__Origin` in this scope
+ --> $DIR/unpin_sneaky.rs:10:16
+ |
+10 | impl Unpin for __Origin {} //~ ERROR E0412,E0321
+ | ^^^^^^^^ not found in this scope
+
+error[E0321]: cross-crate traits with a default impl, like `std::marker::Unpin`, can only be implemented for a struct/enum type, not `[type error]`
+ --> $DIR/unpin_sneaky.rs:10:1
+ |
+10 | impl Unpin for __Origin {} //~ ERROR E0412,E0321
+ | ^^^^^^^^^^^^^^^^^^^^^^^ can't implement cross-crate trait with a default impl for non-struct/enum type
diff --git a/third_party/rust/pin-project-lite/tests/ui/unsupported.rs b/third_party/rust/pin-project-lite/tests/ui/unsupported.rs
new file mode 100644
index 0000000000..2f80836275
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/unsupported.rs
@@ -0,0 +1,27 @@
+use pin_project_lite::pin_project;
+
+pin_project! {
+ struct Struct1 {} //~ ERROR no rules expected the token `}`
+}
+
+pin_project! {
+ struct Struct2(); //~ ERROR no rules expected the token `(`
+}
+
+pin_project! {
+ struct Struct3; //~ ERROR no rules expected the token `;`
+}
+
+pin_project! {
+ enum Enum { //~ ERROR no rules expected the token `enum`
+ A(u8)
+ }
+}
+
+pin_project! {
+ union Union { //~ ERROR no rules expected the token `union`
+ x: u8,
+ }
+}
+
+fn main() {}
diff --git a/third_party/rust/pin-project-lite/tests/ui/unsupported.stderr b/third_party/rust/pin-project-lite/tests/ui/unsupported.stderr
new file mode 100644
index 0000000000..4f7b1aed09
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/ui/unsupported.stderr
@@ -0,0 +1,29 @@
+error: no rules expected the token `}`
+ --> $DIR/unsupported.rs:4:21
+ |
+4 | struct Struct1 {} //~ ERROR no rules expected the token `}`
+ | ^ no rules expected this token in macro call
+
+error: no rules expected the token `(`
+ --> $DIR/unsupported.rs:8:19
+ |
+8 | struct Struct2(); //~ ERROR no rules expected the token `(`
+ | ^ no rules expected this token in macro call
+
+error: no rules expected the token `;`
+ --> $DIR/unsupported.rs:12:19
+ |
+12 | struct Struct3; //~ ERROR no rules expected the token `;`
+ | ^ no rules expected this token in macro call
+
+error: no rules expected the token `enum`
+ --> $DIR/unsupported.rs:16:5
+ |
+16 | enum Enum { //~ ERROR no rules expected the token `enum`
+ | ^^^^ no rules expected this token in macro call
+
+error: no rules expected the token `union`
+ --> $DIR/unsupported.rs:22:5
+ |
+22 | union Union { //~ ERROR no rules expected the token `union`
+ | ^^^^^ no rules expected this token in macro call