borrowck: Apply user_arg_index nomenclature more broadly#154895
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rust-bors[bot] merged 1 commit intorust-lang:mainfrom Apr 20, 2026
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borrowck: Apply user_arg_index nomenclature more broadly#154895rust-bors[bot] merged 1 commit intorust-lang:mainfrom
user_arg_index nomenclature more broadly#154895rust-bors[bot] merged 1 commit intorust-lang:mainfrom
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No change in behavior. Only renames and a couple of added comments.
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| /// as the name suggests. =) | ||
| /// | ||
| /// N.B., in the case of a closure, index 0 is the implicit self parameter, | ||
| /// and not the first input as seen by the user. |
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is this also true for #[track_caller] parameters? might be nice to document all the cases.
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Good call. After browsing around the compiler code a bit, my impression is that #[track_caller] adds an argument to the ABI, but not to MIR. See in particular this:
rust/compiler/rustc_codegen_ssa/src/mir/block.rs
Lines 1319 to 1323 in c9d3a00
So AFAIK the added comment remains accurate.
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@bors r+ |
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…uwer Rollup of 11 pull requests Successful merges: - #154654 (Move `std::io::ErrorKind` to `core::io`) - #145270 (Fix an ICE observed with an explicit tail-call in a default trait method) - #154895 (borrowck: Apply `user_arg_index` nomenclature more broadly) - #155213 (resolve: Make sure visibilities of import declarations make sense) - #155346 (`single_use_lifetimes`: respect `anonymous_lifetime_in_impl_trait`) - #155517 (Add a test for Mach-O `#[link_section]` API inherited from LLVM) - #155549 (Remove some unnecessary lifetimes.) - #154248 (resolve : mark repr_simd as internal) - #154772 (slightly optimize the `non-camel-case-types` lint) - #155541 (Add `#[rust_analyzer::prefer_underscore_import]` to the traits in `rustc_type_ir::inherent`) - #155544 (bootstrap: Make "detected modifications" for download-rustc less verbose)
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Rollup merge of #154895 - Enselic:user-arg-index, r=jdonszelmann borrowck: Apply `user_arg_index` nomenclature more broadly No change in behavior. Only renames and a couple of added comments. As requested here: #154674 (comment) r? jdonszelmann
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…uwer Rollup of 11 pull requests Successful merges: - rust-lang/rust#154654 (Move `std::io::ErrorKind` to `core::io`) - rust-lang/rust#145270 (Fix an ICE observed with an explicit tail-call in a default trait method) - rust-lang/rust#154895 (borrowck: Apply `user_arg_index` nomenclature more broadly) - rust-lang/rust#155213 (resolve: Make sure visibilities of import declarations make sense) - rust-lang/rust#155346 (`single_use_lifetimes`: respect `anonymous_lifetime_in_impl_trait`) - rust-lang/rust#155517 (Add a test for Mach-O `#[link_section]` API inherited from LLVM) - rust-lang/rust#155549 (Remove some unnecessary lifetimes.) - rust-lang/rust#154248 (resolve : mark repr_simd as internal) - rust-lang/rust#154772 (slightly optimize the `non-camel-case-types` lint) - rust-lang/rust#155541 (Add `#[rust_analyzer::prefer_underscore_import]` to the traits in `rustc_type_ir::inherent`) - rust-lang/rust#155544 (bootstrap: Make "detected modifications" for download-rustc less verbose)
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No change in behavior. Only renames and a couple of added comments.
As requested here: #154674 (comment)
r? jdonszelmann