Rust-GPU / Rust-GPU/rust-gpu

[Migrated] Panicking in a #[track_caller] function fails to compile

Aperta
#86 2 commenti 0 reazioni 0 assegnatari Vedi su GitHub

Nessuno ha ancora preso questa issue.

Lingua principale
Rust
Stelle
3.4k
Fork
126
Metriche di merge delle PR
Nessuna PR unita negli ultimi 30g

Descrizione

Issue automatically imported from old repo: https://github.com/EmbarkStudios/rust-gpu/issues/1058
Old labels: t: bug
Originally creatd by beepster4096 on 2023-05-03T02:22:13Z


Expected Behaviour

Successful compilation

Example & Steps To Reproduce
#![no_std]

#[track_caller]
fn panic() {
    panic!("owo")
}

#[spirv_std::spirv(fragment)]
pub fn main() {
    panic();
}

produces

error: function pointer types are not allowed
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\fmt\mod.rs:401:5
    |
401 |     pub const fn new_v1(pieces: &'a [&'static str], args: &'a [ArgumentV1<'a>]) -> Arguments<'a> {
    |     ^
    |

error: cannot cast between pointer types
       from `*struct core::option::Option<&[core::fmt::rt::v1::Argument]> { *[struct core::fmt::rt::v1::Argument { position: u32, 
format: struct core::fmt::rt::v1::FormatSpec { precision: struct core::fmt::rt::v1::Count { u32, u32 }, width: struct 
core::fmt::rt::v1::Count { u32, u32 }, flags: u32, fill: u32, align: u8 } }], u32 }`
         to `**struct fn(&[&'static str], &[core::fmt::ArgumentV1<'_>]) -> core::fmt::Arguments<'_> 
{core::fmt::Arguments::<'_>::new_v1} {  }`
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\fmt\mod.rs:405:34
    |
405 |         Arguments { pieces, fmt: None, args }
    |                                  ^
    |

error: cannot cast between pointer types
       from `*[struct &str { *[u8], u32 }; 1]`
         to `*[struct &str { *[u8], u32 }]`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
   |

error: cannot cast between pointer types
       from `*struct ! {  }`
         to `*[struct core::fmt::ArgumentV1<'_> { value: *struct core::fmt::Opaque {  }, formatter: *fn(*struct core::fmt::Opaque {  }, 
*struct core::fmt::Formatter<'_> { buf: struct &mut dyn core::fmt::Write { *struct dyn core::fmt::Write {  }, *[u32; 3] }, width: 
struct core::option::Option<usize> { u32, u32 }, precision: struct core::option::Option<usize> { u32, u32 }, flags: u32, fill: u32, 
align: u8 }) -> bool }]`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
   |

System Info

  • Rust: 1.69.0-nightly (44cfafe2f 2023-03-03)
  • OS: Windows 11 10.0.22621
  • GPU: NVIDIA GeForce RTX 3070 Laptop

Backtrace

Backtrace

error: function pointer types are not allowed
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\fmt\mod.rs:401:5
    |
401 |     pub const fn new_v1(pieces: &'a [&'static str], args: &'a [ArgumentV1<'a>]) -> Arguments<'a> {
    |     ^
    |
    = note: used by `core::fmt::ArgumentV1<'_>`
    = note: used by unnamed global (%31)
    = note: used by unnamed global (%32)
    = note: used by `&[core::fmt::ArgumentV1<'_>]`
    = note: used by `core::fmt::Arguments<'_>`
note: used from within `gpu::panic`
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
    |
57  |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
    |                                      ^
note: called by `gpu::main`
   --> gpu\src\lib.rs:10:5
    |
10  |     panic();
    |     ^
note: called by `main`
   --> gpu\src\lib.rs:8:1
    |
8   | #[spirv_std::spirv(fragment)]
    | ^

error: cannot cast between pointer types
       from `*struct core::option::Option<&[core::fmt::rt::v1::Argument]> { *[struct core::fmt::rt::v1::Argument { position: u32, 
format: struct core::fmt::rt::v1::FormatSpec { precision: struct core::fmt::rt::v1::Count { u32, u32 }, width: struct 
core::fmt::rt::v1::Count { u32, u32 }, flags: u32, fill: u32, align: u8 } }], u32 }`
         to `**struct fn(&[&'static str], &[core::fmt::ArgumentV1<'_>]) -> core::fmt::Arguments<'_> 
{core::fmt::Arguments::<'_>::new_v1} {  }`
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\fmt\mod.rs:405:34
    |
405 |         Arguments { pieces, fmt: None, args }
    |                                  ^
    |
note: used from within `<core::fmt::Arguments>::new_v1`
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\fmt\mod.rs:405:34
    |
405 |         Arguments { pieces, fmt: None, args }
    |                                  ^
note: called by `gpu::panic`
   --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
    |
57  |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
    |                                      ^
note: called by `gpu::main`
   --> gpu\src\lib.rs:10:5
    |
10  |     panic();
    |     ^
note: called by `main`
   --> gpu\src\lib.rs:8:1
    |
8   | #[spirv_std::spirv(fragment)]
    | ^

error: cannot cast between pointer types
       from `*[struct &str { *[u8], u32 }; 1]`
         to `*[struct &str { *[u8], u32 }]`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
   |
note: used from within `gpu::panic`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
note: called by `gpu::main`
  --> gpu\src\lib.rs:10:5
   |
10 |     panic();
   |     ^
note: called by `main`
  --> gpu\src\lib.rs:8:1
   |
8  | #[spirv_std::spirv(fragment)]
   | ^

error: cannot cast between pointer types
       from `*struct ! {  }`
         to `*[struct core::fmt::ArgumentV1<'_> { value: *struct core::fmt::Opaque {  }, formatter: *fn(*struct core::fmt::Opaque {  }, 
*struct core::fmt::Formatter<'_> { buf: struct &mut dyn core::fmt::Write { *struct dyn core::fmt::Write {  }, *[u32; 3] }, width: 
struct core::option::Option<usize> { u32, u32 }, precision: struct core::option::Option<usize> { u32, u32 }, flags: u32, fill: u32, 
align: u8 }) -> bool }]`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
   |
note: used from within `gpu::panic`
  --> 
C:\Users\DrMeepster\.rustup\toolchains\nightly-2023-03-04-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\core\src\panic.rs:57:38
   |
57 |         $crate::panicking::panic_fmt($crate::const_format_args!($($t)+))
   |                                      ^
note: called by `gpu::main`
  --> gpu\src\lib.rs:10:5
   |
10 |     panic();
   |     ^
note: called by `main`
  --> gpu\src\lib.rs:8:1
   |
8  | #[spirv_std::spirv(fragment)]
   | ^

Guida per i contributori

Apri la guida per i contributori

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Direzione di ricerca

Inizia riproducendo l’esempio in gpu/src/lib.rs e confronta le diagnostiche emesse relative a #[track_caller], core::fmt::mod.rs e core::panic.rs. Segui il fallimento dall’entry point del fragmento spirv fino alla compilazione; il lavoro è completato quando l’esempio viene compilato correttamente senza gli errori di puntatore a funzione e cast di puntatori segnalati.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
rust
Ambito
compilers
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Ferma
Chiarezza
Abbastanza chiara
Idoneità per principianti
42/100

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.