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Looking For mozilla.org Wiki Developer Center Firefox Thunderbird May 14, 2024 Firefox Developer Experience — Firefox roach adversely affected performance, particularly when client code didn’t run locally, leading to increased data transmission over the network. To address these issues and simplify the use of network interception for specific tabs, roach will minimize communities’ time localizing strings no longer used. In other words, if you see a string labeled with a date, pleaseSDK with a Rust core Observations/Thoughts The Rust Calling Convention We Deserve Sized, DynSized, and Unsized Coroutines and effects Porting a cross-platform GUI application to Rust Adventures In Rust: Bringing Exchange Support To Thunderbird Rust Walkthroughs Why SQLite Performance Tuning made Bencher 1200x Faster drop, the destructor of Rust structs Building with AWS S3 using Rust Rust tokio task cancellation patterns [video] Build with Naz - Published crate r3bl_terminal_async for building async interactive CLIs in Rust [video] Trent Billington - Bevy ECS - Power tool for data oriented applications [video] Building a procedural art generator [audio] Isograph with Robert Balicki Research A Study of Undefined Behavior Across Foreign Function Boundaries in Rust Libraries Rust Digger: Does size matter? The biggest crate is 450MB; More than 100 crates are over 50MB Miscellaneous GitHub Sponsor Rust developer David Tolnay Learn how to write TCP servers using Rust’s std::net module RustFest Zürich ? Talks announced Crate of the Week This week’s crate is scandir , a high-performance file tree scanner. Thanks to Marty B. for the self-suggestion! Please submit your suggestions and votes for next week ! Call for Testing An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward: No calls for testing were issued this week. If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing. Call for Participation; projects and speakers CFP - Projects Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started! Some of these tasks may also have mentors available, visit the task page for more information. awesome-alternatives-in-rust - Add dqy alternative to dig fluvio - When a topic is deleted, connected clients should have their connection closed fluvio - MQTT Connector: Prefix auto generated Client ID to prevent connection drops fluvio - Remove localhost from fluvio in favor of 127.0.0.1 If you are a Rust project owner and are looking for contributors, please submit tasks here . CFP - Speakers Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker. RustConf 2024 | Closes 2024-04-25 | Montreal, Canada | Event date: 2024-09-10 RustLab 2024 | Closes 2024-05-01 | Florence, Italy | Event date: 2024-11-09 - 2024-11-11 EuroRust 2024 | Closes 2024-06-03 | Vienna, Austria & online | Event date: 2024-10-10 Scientific Computing in Rust 2024 | Closes 2024-06-14 | online | Event date: 2024-07-17 - 2024-07-19 Conf42 Rustlang 2024 | Closes 2024-07-22 | online | Event date: 2024-08-22 If you are an event organizer hoping to expand the reach of your event, please submit a link to the submission website through a PR to TWiR . Updates from the Rust Project 432 pull requests were merged in the last week add simple async drop glue generation llvm backend: Prevent creating the same Instance::mono multiple times static_mut_refs : use raw pointers to remove the remaining FIXME add a lower bound check to unicode-table-generator output add an opt-in to store incoming edges in VecGraph + misc add llvm-bitcode-linker to build manifest allow workproducts without object files at debuginfo=0, don’t inline debuginfo when inlining correctly change type when adding adjustments on top of NeverToAny coverage: branch coverage tests for lazy boolean operators coverage: prepare for improved branch coverage delay interning errors to after validation delay span bug when Self kw resolves to DefKind::{Mod,Trait} don’t ICE for kind mismatches during error rendering don’t ascend into parent bodies when collecting stmts for possible return suggestion don’t error on subtyping of equal types don’t inline integer literals when they overflow - new attempt don’t repeatedly duplicate TAIT lifetimes for each subsequently nested TAIT fix ICE in eval_body_using_ecx fix ICE when there is a non-Unicode entry in the incremental crate directory fix capturing duplicated lifetimes via parent in precise_captures ( impl use’... ) fix normalizing in different ParamEnv s with the same InferCtxt fix trait solver overflow with non_local_definitions lint flip spans for precise capturing syntax not capturing a ty/const param, and for implicit captures of lifetime params give a name to each distinct manipulation of pretty-printer FixupContext ignore -C strip on MSVC implement Modified Condition/Decision Coverage implement PROBLEMATIC_CONSTS generalization implement syntax for impl Trait to specify its captures explicitly ( feature(precise_capturing) ) improve ICE message for forbidden dep-graph reads interpret: pass MemoryKind to adjust_alloc_base_pointer interpret: pass MemoryKind to before_memory_deallocation interpret: use ScalarInt for bin-ops; avoid PartialOrd for ScalarInt introduce perma-unstable wasm-c-abi flag let inherent associated types constrain opaque types during projection make suggest_deref_closure_return more idiomatic/easier to understand make thir_tree and thir_flat into hooks make the comments for ReturnDest variants doc comments match ergonomics 2024: Implement eat-one-layer match ergonomics 2024: mut doesn’t reset binding mode match hyphen in multi-revision comment matchers opaque types have no namespace outline default query and hook provider function implementations prefer identity equality over equating types during coercion print note with closure signature on type mismatch properly handle emojis as literal prefix in macros remove default_hidden_visibility: false from wasm targets remove uneeded clones now that TrustedStep implies Copy silence some follow-up errors on trait impls in case the trait has conflicting or otherwise incoherent impls simplify shallow resolver to just fold ty/consts stop taking ParamTy / ParamConst / EarlyParamRegion / AliasTy by ref subtype predicates only exist on inference types, so we can allow them to register opaque types within them tell LLVM Vec::len is invariant across growth use raw-dylib for Windows synchronization functions refactor clippy in bootstrap when suggesting RUST_BACKTRACE=1, add a special note for Miri’s env var isolation miri: data_race : make the release/acquire API more clear miri: no_std works on Windows now miri: add localtime_r shim miri: address reuse improvements and fixes miri: deadlock: show backtrace for all threads miri: directly call handle_alloc_error miri: implement support for __rust_alloc_error_handler miri: make realloc with a size of zero fail miri: move read_byte_slice to general helpers file, next to read_c_str miri: threads: keep track of why we are blocked, and sanity-check that when waking up Box::into_raw : make Miri understand that this is a box-to-raw cast PatRangeBoundary::compare_with : also add a fast-path for signed integers codegen ZSTs without an allocation stabilize Wasm target features that are in phase 4 and 5 stabilize const_io_structs stabilize checking of cfgs at compile-time: check-cfg option stabilize generic NonZero make checked ops emit...