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test: add a more complex symbol-name testcase.
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@eddyb
eddyb committed May 31, 2019
1 parent 9cf35bf commit 3652ea4
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Showing 3 changed files with 98 additions and 19 deletions.
42 changes: 33 additions & 9 deletions src/test/ui/symbol-names/impl1.legacy.stderr
View file
Original file line number Diff line number Diff line change
@@ -1,50 +1,74 @@
error: symbol-name(_ZN5impl13foo3Foo3bar17he53b9bee7600ed8dE)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(impl1::foo::Foo::bar::he53b9bee7600ed8d)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(impl1::foo::Foo::bar)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(foo::Foo::bar)
--> $DIR/impl1.rs:19:9
--> $DIR/impl1.rs:20:9
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: symbol-name(_ZN5impl13bar33_$LT$impl$u20$impl1..foo..Foo$GT$3baz17h86c41f0462d901d4E)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(impl1::bar::<impl impl1::foo::Foo>::baz::h86c41f0462d901d4)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(impl1::bar::<impl impl1::foo::Foo>::baz)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(bar::<impl foo::Foo>::baz)
--> $DIR/impl1.rs:37:9
--> $DIR/impl1.rs:38:9
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: aborting due to 8 previous errors
error: symbol-name(_ZN198_$LT$$u5b$$RF$dyn$u20$impl1..Foo$u2b$Assoc$u20$$u3d$$u20$extern$u20$$u22$C$u22$$u20$fn$LP$$RF$u8$RP$$u2b$impl1..AutoTrait$u3b$$u20$_$u5d$$u20$as$u20$impl1..main..$u7b$$u7b$closure$u7d$$u7d$..Bar$GT$6method17h6f205aef6a8ccc7bE)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8)+impl1::AutoTrait; _] as impl1::main::{{closure}}::Bar>::method::h6f205aef6a8ccc7b)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8)+impl1::AutoTrait; _] as impl1::main::{{closure}}::Bar>::method)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(<[&dyn Foo<Assoc = for<'r> extern "C" fn(&'r u8)> + AutoTrait; _] as main::{{closure}}#1::Bar>::method)
--> $DIR/impl1.rs:70:13
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: aborting due to 12 previous errors

33 changes: 32 additions & 1 deletion src/test/ui/symbol-names/impl1.rs
View file
Original file line number Diff line number Diff line change
@@ -1,8 +1,9 @@
// ignore-tidy-linelength
// revisions: legacy v0
//[legacy]compile-flags: -Z symbol-mangling-version=legacy
//[v0]compile-flags: -Z symbol-mangling-version=v0

#![feature(rustc_attrs)]
#![feature(optin_builtin_traits, rustc_attrs)]
#![allow(dead_code)]

mod foo {
Expand Down Expand Up @@ -41,5 +42,35 @@ mod bar {
}
}

trait Foo {
type Assoc;
}

auto trait AutoTrait {}

fn main() {
// Test closure mangling, and disambiguators.
|| {};
|| {
trait Bar {
fn method(&self) {}
}

// Test type mangling, by putting them in an `impl` header.
// FIXME(eddyb) test C varargs when `core::ffi::VaList` stops leaking into the signature
// (which is a problem because `core` has an unpredictable hash) - see also #44930.
impl Bar for [&'_ (dyn Foo<Assoc = extern fn(&u8, /*...*/)> + AutoTrait); 3] {
#[rustc_symbol_name]
//[legacy]~^ ERROR symbol-name(_ZN198_$LT$$u5b$$RF$dyn$u20$impl1..Foo$u2b$Assoc$u20$$u3d$$u20$extern$u20$$u22$C$u22$$u20$fn$LP$$RF$u8$RP$$u2b$impl1..AutoTrait$u3b$$u20$_$u5d$$u20$as$u20$impl1..main..$u7b$$u7b$closure$u7d$$u7d$..Bar$GT$6method
//[legacy]~| ERROR demangling(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8)+impl1::AutoTrait; _] as impl1::main::{{closure}}::Bar>::method
//[legacy]~| ERROR demangling-alt(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8)+impl1::AutoTrait; _] as impl1::main::{{closure}}::Bar>::method)
//[v0]~^^^^ ERROR symbol-name(_RNvXNCNvCs4fqI2P2rA04_5impl14mains_0ARDNtB6_3Foop5AssocFG0_KCRL0_hEuNtB6_9AutoTraitEL_j3_NtB2_3Bar6method)
//[v0]~| ERROR demangling(<[&dyn impl1[317d481089b8c8fe]::Foo<Assoc = for<'a, 'b> extern "C" fn(&'b u8)> + impl1[317d481089b8c8fe]::AutoTrait; 3: usize] as impl1[317d481089b8c8fe]::main::{closure#1}::Bar>::method)
//[v0]~| ERROR demangling-alt(<[&dyn impl1::Foo<Assoc = for<'a, 'b> extern "C" fn(&'b u8)> + impl1::AutoTrait; 3] as impl1::main::{closure#1}::Bar>::method)
#[rustc_def_path]
//[legacy]~^ ERROR def-path(<[&dyn Foo<Assoc = for<'r> extern "C" fn(&'r u8)> + AutoTrait; _] as main::{{closure}}#1::Bar>::method)
//[v0]~^^ ERROR def-path(<[&dyn Foo<Assoc = for<'r> extern "C" fn(&'r u8)> + AutoTrait; _] as main::{{closure}}#1::Bar>::method)
fn method(&self) {}
}
};
}
42 changes: 33 additions & 9 deletions src/test/ui/symbol-names/impl1.v0.stderr
View file
Original file line number Diff line number Diff line change
@@ -1,50 +1,74 @@
error: symbol-name(_RNvMNtCs4fqI2P2rA04_5impl13fooNtB2_3Foo3bar)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(<impl1[317d481089b8c8fe]::foo::Foo>::bar)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(<impl1::foo::Foo>::bar)
--> $DIR/impl1.rs:12:9
--> $DIR/impl1.rs:13:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(foo::Foo::bar)
--> $DIR/impl1.rs:19:9
--> $DIR/impl1.rs:20:9
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: symbol-name(_RNvMNtCs4fqI2P2rA04_5impl13barNtNtB4_3foo3Foo3baz)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(<impl1[317d481089b8c8fe]::foo::Foo>::baz)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(<impl1::foo::Foo>::baz)
--> $DIR/impl1.rs:30:9
--> $DIR/impl1.rs:31:9
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(bar::<impl foo::Foo>::baz)
--> $DIR/impl1.rs:37:9
--> $DIR/impl1.rs:38:9
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: aborting due to 8 previous errors
error: symbol-name(_RNvXNCNvCs4fqI2P2rA04_5impl14mains_0ARDNtB6_3Foop5AssocFG0_KCRL0_hEuNtB6_9AutoTraitEL_j3_NtB2_3Bar6method)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling(<[&dyn impl1[317d481089b8c8fe]::Foo<Assoc = for<'a, 'b> extern "C" fn(&'b u8)> + impl1[317d481089b8c8fe]::AutoTrait; 3: usize] as impl1[317d481089b8c8fe]::main::{closure#1}::Bar>::method)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(<[&dyn impl1::Foo<Assoc = for<'a, 'b> extern "C" fn(&'b u8)> + impl1::AutoTrait; 3] as impl1::main::{closure#1}::Bar>::method)
--> $DIR/impl1.rs:63:13
|
LL | #[rustc_symbol_name]
| ^^^^^^^^^^^^^^^^^^^^

error: def-path(<[&dyn Foo<Assoc = for<'r> extern "C" fn(&'r u8)> + AutoTrait; _] as main::{{closure}}#1::Bar>::method)
--> $DIR/impl1.rs:70:13
|
LL | #[rustc_def_path]
| ^^^^^^^^^^^^^^^^^

error: aborting due to 12 previous errors

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