RustPython / RustPython/Parser

Cannot compile with Rust 1.76.0

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Dominant language
Rust
Stars
117
Forks
38
Avg merge
4d 7h
Merged PRs (30d)
1

Description

Works with 1.75.0, but here is the issue with 1.76.0

  --> /home/rfiszel/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustpython-ast-0.3.0/src/impls.rs:60:1
   |
60 | static_assertions::assert_eq_size!(crate::Stmt, [u8; 160]);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: `generic::Stmt` (1216 bits)
   = note: target type: `[u8; 160]` (1280 bits)
   = note: this error originates in the macro `static_assertions::assert_eq_size` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> /home/rfiszel/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustpython-ast-0.3.0/src/impls.rs:62:1
   |
62 | static_assertions::assert_eq_size!(crate::Pattern, [u8; 96]);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: `generic::Pattern` (704 bits)
   = note: target type: `[u8; 96]` (768 bits)
   = note: this error originates in the macro `static_assertions::assert_eq_size` (in Nightly builds, run with -Z macro-backtrace for more info)

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the build with Rust 1.76.0 and inspect rustpython-ast-0.3.0/src/impls.rs around lines 60-62, where the size assertions fail for Stmt and Pattern. Compare the generated type sizes between Rust 1.75.0 and 1.76.0; done means the project compiles successfully on Rust 1.76.0 without invalid size assertions.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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