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Change to just use first binders and add test

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This commit is contained in:
Jack Huey 2021-05-15 15:19:01 -04:00
parent c34e7c60f5
commit 0daabbee2d
5 changed files with 218 additions and 27 deletions
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56
src/test/ui/symbol-names/trait-objects.legacy.stderr Normal file
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@ -0,0 +1,56 @@
error: symbol-name(_ZN136_$LT$$RF$dyn$u20$core..ops..function..FnMut$LT$$LP$$RF$u8$C$$RP$$GT$$u2b$Output$u20$$u3d$$u20$$LP$$RP$$u20$as$u20$trait_objects..Bar$GT$6method17h1e14a5f2d365272fE)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn core::ops::function::FnMut<(&u8,)>+Output = () as trait_objects::Bar>::method::h1e14a5f2d365272f)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn core::ops::function::FnMut<(&u8,)>+Output = () as trait_objects::Bar>::method)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: symbol-name(_ZN159_$LT$$RF$dyn$u20$core..ops..function..FnMut$LT$$LP$$RF$u8$C$$RP$$GT$$u2b$Output$u20$$u3d$$u20$$LP$$RP$$u2b$core..marker..Send$u20$as$u20$trait_objects..Foo$GT$6method17he7a07961c9aaa367E)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn core::ops::function::FnMut<(&u8,)>+Output = ()+core::marker::Send as trait_objects::Foo>::method::he7a07961c9aaa367)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn core::ops::function::FnMut<(&u8,)>+Output = ()+core::marker::Send as trait_objects::Foo>::method)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: symbol-name(_ZN159_$LT$$RF$dyn$u20$core..ops..function..FnMut$LT$$LP$$RF$u8$C$$RP$$GT$$u2b$Output$u20$$u3d$$u20$$LP$$RP$$u2b$core..marker..Send$u20$as$u20$trait_objects..Baz$GT$6method17ha53e6f99bf033f0bE)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn core::ops::function::FnMut<(&u8,)>+Output = ()+core::marker::Send as trait_objects::Baz>::method::ha53e6f99bf033f0b)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn core::ops::function::FnMut<(&u8,)>+Output = ()+core::marker::Send as trait_objects::Baz>::method)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: aborting due to 9 previous errors

56
src/test/ui/symbol-names/trait-objects.rs Normal file
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@ -0,0 +1,56 @@
// Ensure that trait objects don't include more than one binder. See #83611
// build-fail
// revisions: legacy v0
//[legacy]compile-flags: -Z symbol-mangling-version=legacy
//[v0]compile-flags: -Z symbol-mangling-version=v0
#![feature(rustc_attrs)]
trait Bar {
fn method(&self) {}
}
impl Bar for &dyn FnMut(&u8) {
#[rustc_symbol_name]
//[legacy]~^ ERROR symbol-name
//[legacy]~| ERROR demangling
//[legacy]~| ERROR demangling-alt
//[v0]~^^^^ ERROR symbol-name
//[v0]~| ERROR demangling
//[v0]~| ERROR demangling-alt
fn method(&self) {}
}
trait Foo {
fn method(&self) {}
}
impl Foo for &(dyn FnMut(&u8) + for<'b> Send) {
#[rustc_symbol_name]
//[legacy]~^ ERROR symbol-name
//[legacy]~| ERROR demangling
//[legacy]~| ERROR demangling-alt
//[v0]~^^^^ ERROR symbol-name
//[v0]~| ERROR demangling
//[v0]~| ERROR demangling-alt
fn method(&self) {}
}
trait Baz {
fn method(&self) {}
}
impl Baz for &(dyn for<'b> Send + FnMut(&u8)) {
#[rustc_symbol_name]
//[legacy]~^ ERROR symbol-name
//[legacy]~| ERROR demangling
//[legacy]~| ERROR demangling-alt
//[v0]~^^^^ ERROR symbol-name
//[v0]~| ERROR demangling
//[v0]~| ERROR demangling-alt
fn method(&self) {}
}
fn main() {
}

56
src/test/ui/symbol-names/trait-objects.v0.stderr Normal file
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@ -0,0 +1,56 @@
error: symbol-name(_RNvXCs21hi0yVfW1J_13trait_objectsRDG_INtNtNtCs54lBhuwykzk_4core3ops8function5FnMutTRL0_hEEp6OutputuEL_NtB2_3Bar6method)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn for<'a> core[3b0e14d6e1ad42d0]::ops::function::FnMut<(&'a u8,), Output = ()> as trait_objects[17891616a171812d]::Bar>::method)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn for<'a> core::ops::function::FnMut<(&'a u8,), Output = ()> as trait_objects::Bar>::method)
--> $DIR/trait-objects.rs:15:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: symbol-name(_RNvXs_Cs21hi0yVfW1J_13trait_objectsRDG_INtNtNtCs54lBhuwykzk_4core3ops8function5FnMutTRL0_hEEp6OutputuNtNtBI_6marker4SendEL_NtB4_3Foo6method)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn for<'a> core[3b0e14d6e1ad42d0]::ops::function::FnMut<(&'a u8,), Output = ()> + core[3b0e14d6e1ad42d0]::marker::Send as trait_objects[17891616a171812d]::Foo>::method)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn for<'a> core::ops::function::FnMut<(&'a u8,), Output = ()> + core::marker::Send as trait_objects::Foo>::method)
--> $DIR/trait-objects.rs:30:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: symbol-name(_RNvXs0_Cs21hi0yVfW1J_13trait_objectsRDG_INtNtNtCs54lBhuwykzk_4core3ops8function5FnMutTRL0_hEEp6OutputuNtNtBJ_6marker4SendEL_NtB5_3Baz6method)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling(<&dyn for<'a> core[3b0e14d6e1ad42d0]::ops::function::FnMut<(&'a u8,), Output = ()> + core[3b0e14d6e1ad42d0]::marker::Send as trait_objects[17891616a171812d]::Baz>::method)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: demangling-alt(<&dyn for<'a> core::ops::function::FnMut<(&'a u8,), Output = ()> + core::marker::Send as trait_objects::Baz>::method)
--> $DIR/trait-objects.rs:45:5
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^
error: aborting due to 9 previous errors