Neither tuple struct nor a tuple variant was used as a pattern - E0164
- Fixing this issue, help
gccrs to emit error code E0164 similiar to rustc.
- You can view the same on
compiler-explorer
I tried this code from E0164:
// https://doc.rust-lang.org/error_codes/E0164.html
#![allow(unused)]
fn main() {
enum A {
B,
C,
}
impl A {
fn new() {}
}
fn bar(foo: A) {
match foo {
A::new() => (), // error!
_ => {}
}
}
}
I expected to see this happen:
- Give error like rustc i.e.,
➜ mahad-testsuite rustc E0164.rs
error[E0164]: expected tuple struct or tuple variant, found associated function `A::new`
--> E0164.rs:14:9
|
14 | A::new() => (), // error!
| ^^^^^^^^ `fn` calls are not allowed in patterns
|
= help: for more information, visit https://doc.rust-lang.org/book/ch18-00-patterns.html
error: aborting due to previous error
For more information about this error, try `rustc --explain E0164`.
Instead, this happened:
- gccrs gives internal compile error.
- Here is the backtrace of gccrs.
➜ mahad-testsuite ../gccrs-build/gcc/crab1 E0164.rs
crab1: internal compiler error: in get_items, at rust/ast/rust-pattern.h:1182
0x7b8896 Rust::AST::TupleStructPattern::get_items()
../../gccrs/gcc/rust/ast/rust-pattern.h:1182
0x7b8896 Rust::AST::TupleStructPattern::get_items()
../../gccrs/gcc/rust/ast/rust-pattern.h:1180
0x7b8896 Rust::Resolver::EarlyNameResolver::visit(Rust::AST::TupleStructPattern&)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:1108
0xb9d650 operator()
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:561
0xb9d650 __invoke_impl<void, Rust::Resolver::EarlyNameResolver::visit(Rust::AST::MatchExpr&)::<lambda()>::<lambda()>&>
/usr/include/c++/11/bits/invoke.h:61
0xb9d650 __invoke_r<void, Rust::Resolver::EarlyNameResolver::visit(Rust::AST::MatchExpr&)::<lambda()>::<lambda()>&>
/usr/include/c++/11/bits/invoke.h:111
0xb9d650 _M_invoke
/usr/include/c++/11/bits/std_function.h:290
0xb9c6e2 std::function<void ()>::operator()() const
/usr/include/c++/11/bits/std_function.h:590
0xb9c6e2 Rust::Resolver::EarlyNameResolver::scoped(unsigned int, std::function<void ()>)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.h:50
0xb9c6e2 operator()
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:556
0xb9c6e2 __invoke_impl<void, Rust::Resolver::EarlyNameResolver::visit(Rust::AST::MatchExpr&)::<lambda()>&>
/usr/include/c++/11/bits/invoke.h:61
0xb9c6e2 __invoke_r<void, Rust::Resolver::EarlyNameResolver::visit(Rust::AST::MatchExpr&)::<lambda()>&>
/usr/include/c++/11/bits/invoke.h:111
0xb9c6e2 _M_invoke
/usr/include/c++/11/bits/std_function.h:290
0xb9ce9a std::function<void ()>::operator()() const
/usr/include/c++/11/bits/std_function.h:590
0xb9ce9a Rust::Resolver::EarlyNameResolver::scoped(unsigned int, std::function<void ()>)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.h:50
0xb9ce9a Rust::Resolver::EarlyNameResolver::visit(Rust::AST::MatchExpr&)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:553
0xb9ca80 std::function<void ()>::operator()() const
/usr/include/c++/11/bits/std_function.h:590
0xb9ca80 Rust::Resolver::EarlyNameResolver::scoped(unsigned int, std::function<void ()>)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.h:50
0xb9ca80 Rust::Resolver::EarlyNameResolver::visit(Rust::AST::BlockExpr&)
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:408
0xb9af61 operator()
../../gccrs/gcc/rust/resolve/rust-early-name-resolver.cc:410
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Meta
- What version of Rust GCC were you using, git
sha 866512c
- Compiler-Explorer version => gccrs (Compiler-Explorer-Build-gcc-a06cec181de6398231e0662c1ed83d905ad6d1d9-binutils-2.40) 13.0.1 20230417 (experimental)
