jam1garner/binrw

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A Rust crate for helping parse and rebuild binary data using ✨macro magic✨.

Stars: 853
Forks: 56
Open beginner issues: 0
Indexed issues: 33

Dominant language: Rust
License: MIT
Last GitHub push: Jul 22, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Open All

33 open issues indexed

Improve support for serializing data containing offsets (FilePtr, etc.) Open

enhancement

jam1garner/binrw#4 · 3 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Extendible ReadOptions (and eventually equiv for BinWrite, maybe) Open

enhancement

jam1garner/binrw#24 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Add top-level `args` attribute for use with top-level map/try_map Open

enhancement

jam1garner/binrw#39 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Move br(count) attribute to desugar to binrw::helpers::count Open

enhancement

jam1garner/binrw#52 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Document order of operations for attributes Open

documentation has instructions

jam1garner/binrw#68 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Add serde-style `brw(with)` attribute Open

enhancement

jam1garner/binrw#98 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
BinWrite requires writer to be Sized Open

jam1garner/binrw#104 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Add no_std support to binrw::io::BufReader Open

enhancement

jam1garner/binrw#143 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Add compile-time error when using brw on `if` attribute Open

diagnostics issue

jam1garner/binrw#148 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Make correct error handling easier for manual implementations Open

enhancement

jam1garner/binrw#155 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Add a `position_of!` macro to reference earlier fields position Open

enhancement

jam1garner/binrw#161 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Referencing fields in `#[brw]` is impossible due to value/ref differences between `BinRead` and `BinWrite` Open

confusing api

jam1garner/binrw#179 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 18, 2026
Confusing rustc error message on generic struct with misleading suggestion Open

diagnostics issue

jam1garner/binrw#199 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
TakeSeek + until_eof with enum pre asserts Open

confusing api

jam1garner/binrw#217 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Excessive syscalls when using BufWriter Open

performance issue

jam1garner/binrw#220 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Pad a vector's items Open

enhancement

jam1garner/binrw#238 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
[Feature] `no_alloc` operation Open

enhancement

jam1garner/binrw#251 · 1 comment · 10 reactions · 0 assignees · Indexed Sep 18, 2026
Unnecessary rewinds and re-reads of magic on data enums cause bad performance and prevent use of `NoSeek` Open

bug performance issue

jam1garner/binrw#253 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Consider evaluating `calc` before `seek_before` Open

confusing api

jam1garner/binrw#271 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Writing enums: pre_assert? Open

confusing api enhancement

jam1garner/binrw#272 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Feature Request: Magic Numbers at end of File/Struct Open

enhancement

jam1garner/binrw#274 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
`pad_XXX`/`align_XX` attributes write unexpected zeros. Open

confusing api documentation good first issue

jam1garner/binrw#295 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Issue with lifetimes and Vec (lifetime may not live long enough requires that `'bar` must outlive `'static`) Open

bug

jam1garner/binrw#298 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Generating 010 Editor Templates from binrw annotations Open

enhancement

jam1garner/binrw#307 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
website down? Open

jam1garner/binrw#328 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 18, 2026
Automatically use enum discriminants as magic? Open

enhancement

jam1garner/binrw#343 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
deprecated variants trigger lint rules Open

confusing api

jam1garner/binrw#345 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
For a fixed-size struct, is it possible to read or write in a single operation? Open

enhancement

jam1garner/binrw#348 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
For the same struct member, is it possible to execute if multiple times? Open

enhancement

jam1garner/binrw#349 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`BinRead` and `BinWrite` derive macros should be able to add the generic trait bounds by themselves Open

enhancement

jam1garner/binrw#357 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
[BUG] Struct with Option set to None fails round trip test Open

confusing api

jam1garner/binrw#363 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Symmetric `calc` behavior for `BinRead` and `BinWrite` Open

enhancement

jam1garner/binrw#364 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Stream borrowed after a move Open

jam1garner/binrw#370 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026

jam1garner/binrw

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