Rollup of 5 pull requests #71445
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Rollup of 5 pull requests #71445
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This adds a hint on `mem::replace`, "if you don't need the old value, you can just assign the new value directly". This is in similar spirit to the `must_use` on `ManuallyDrop::take`.
Co-Authored-By: bjorn3 <[email protected]>
…rror code and also that 'compile_fail' isn't mispelled
Co-Authored-By: ecstatic-morse <[email protected]>
Lint must_use on mem::replace This adds a hint on `mem::replace`, "if you don't need the old value, you can just assign the new value directly". This is in similar spirit to the `must_use` on `ManuallyDrop::take`.
…on-extra-check, r=oli-obk Error code explanation extra check r? @Mark-Simulacrum
…ic-morse allow wasm32 compilation of librustc_data_structures/profiling.rs I'm trying to use rustfmt from a wasm app. I ran into this compilation problem rust-lang/rustfmt#4132 and after investigating, it looked like just adjusting a few cfg's. I based it on how measureme added support in rust-lang/measureme#43. My testing on my macbook was just that librustc_data_structures builds now with both: - cargo build - cargo build --target wasm32-unknown-unknown
proc_macro::is_available() This PR adds `proc_macro::is_available() -> bool` to determine whether proc_macro has been made accessible to the currently running program. The proc_macro crate is only intended for use inside the implementation of procedural macros. All the functions in the crate panic if invoked from outside of a procedural macro, such as from a build script or unit test or ordinary Rust binary. Unfortunately those panics made it impossible for libraries that are designed to support both macro and non-macro use cases (e.g. Syn) to be used from binaries that are compiled with panic=abort. In panic=unwind mode we're able to attempt a proc macro call inside catch_unwind and use libproc_macro's result if it succeeds, otherwise fall back to a non-macro alternative implementation. But in panic=abort there was no way to determine which implementation needs to be used. r? @eddyb attn: @petrochenkov @adetaylor ref: dtolnay/cxx#130
Implement `Copy` for `AllocErr` r? @Amanieu
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@bors r+ rollup=never p=5 |
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📌 Commit bb13aab has been approved by |
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☀️ Test successful - checks-azure |
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Successful merges:
CopyforAllocErr#71440 (ImplementCopyforAllocErr)Failed merges:
r? @ghost