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Fix handling of macro arguments within the dropping_copy_types
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…ler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> `@rustbot` label +L-dropping_copy_types
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Aug 22, 2024
…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#126985 (Implement `-Z embed-source` (DWARFv5 source code embedding extension)) - rust-lang#128935 (More work on `zstd` compression) - rust-lang#129263 (Add a missing compatibility note in the 1.80.0 release notes) - rust-lang#129386 (Use a LocalDefId in ResolvedArg.) - rust-lang#129408 (Fix handling of macro arguments within the `dropping_copy_types` lint) - rust-lang#129410 (Miri subtree update) - rust-lang#129416 (library: Move unstable API of new_uninit to new features) r? `@ghost` `@rustbot` modify labels: rollup
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Aug 22, 2024
…ler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> ``@rustbot`` label +L-dropping_copy_types
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Aug 22, 2024
…ler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> ```@rustbot``` label +L-dropping_copy_types
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#126985 (Implement `-Z embed-source` (DWARFv5 source code embedding extension)) - rust-lang#128511 (Document WebAssembly target feature expectations) - rust-lang#128935 (More work on `zstd` compression) - rust-lang#129263 (Add a missing compatibility note in the 1.80.0 release notes) - rust-lang#129386 (Use a LocalDefId in ResolvedArg.) - rust-lang#129408 (Fix handling of macro arguments within the `dropping_copy_types` lint) - rust-lang#129417 (Don't trigger refinement lint if predicates reference errors) r? `@ghost` `@rustbot` modify labels: rollup
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Aug 23, 2024
…ler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> ````@rustbot```` label +L-dropping_copy_types
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Rollup of 7 pull requests Successful merges: - rust-lang#126985 (Implement `-Z embed-source` (DWARFv5 source code embedding extension)) - rust-lang#128349 (Enable `f16` tests on x86 and x86-64) - rust-lang#128511 (Document WebAssembly target feature expectations) - rust-lang#129263 (Add a missing compatibility note in the 1.80.0 release notes) - rust-lang#129276 (Stabilize feature `char_indices_offset`) - rust-lang#129350 (adapt integer comparison tests for LLVM 20 IR changes) - rust-lang#129408 (Fix handling of macro arguments within the `dropping_copy_types` lint) r? `@ghost` `@rustbot` modify labels: rollup
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Aug 23, 2024
…ler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> `````@rustbot````` label +L-dropping_copy_types
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…llaumeGomez Rollup of 9 pull requests Successful merges: - rust-lang#128511 (Document WebAssembly target feature expectations) - rust-lang#129243 (do not build `cargo-miri` by default on stable channel) - rust-lang#129263 (Add a missing compatibility note in the 1.80.0 release notes) - rust-lang#129276 (Stabilize feature `char_indices_offset`) - rust-lang#129350 (adapt integer comparison tests for LLVM 20 IR changes) - rust-lang#129408 (Fix handling of macro arguments within the `dropping_copy_types` lint) - rust-lang#129426 (rustdoc-search: use tighter json for names and parents) - rust-lang#129437 (Fix typo in a help diagnostic) - rust-lang#129457 (kobzol vacation) r? `@ghost` `@rustbot` modify labels: rollup
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Aug 23, 2024
Rollup merge of rust-lang#129408 - Urgau:macro-arg-drop_copy, r=compiler-errors Fix handling of macro arguments within the `dropping_copy_types` lint This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different `{drop,forget}ing_copy_types` and `{drop,forget}ing_references` lints. <details> <summary>Before</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result --> /home/[..]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/macros/mod.rs:688:9 | 68| let _ = | ~~~~~~~ ``` </details> <details> <summary>With this PR</summary> ``` warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing --> drop_writeln.rs:5:5 | 5 | drop(writeln!(&mut msg, "test")); | ^^^^^--------------------------^ | | | argument has type `Result<(), std::fmt::Error>` | = note: `#[warn(dropping_copy_types)]` on by default help: use `let _ = ...` to ignore the expression or result | 5 - drop(writeln!(&mut msg, "test")); 5 + let _ = writeln!(&mut msg, "test"); | ``` </details> ``````@rustbot`````` label +L-dropping_copy_types
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Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: armhf-gnu
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Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc ``@cbeuw`` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: armhf-gnu
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Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc ```@cbeuw``` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: armhf-gnu
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Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Sep 27, 2024
Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Sep 27, 2024
Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Sep 29, 2024
Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang#118149. Nothing really changed, except for rust-lang#129408 which I was able to trigger locally. Original description: > Implement parts of rust-lang#111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix rust-lang#105907 Fix rust-lang#85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Oct 3, 2024
Implement RFC3137 trim-paths sysroot changes - take 2 This PR is a continuation of rust-lang/rust#118149. Nothing really changed, except for rust-lang/rust#129408 which I was able to trigger locally. Original description: > Implement parts of #111540 > > Right now, backtraces into sysroot always shows /rustc/$hash in diagnostics, e.g. > > ``` > thread 'main' panicked at 'hello world', map-panic.rs:2:50 > stack backtrace: > 0: std::panicking::begin_panic > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12 > 1: map_panic::main::{{closure}} > at ./map-panic.rs:2:50 > 2: core::option::Option<T>::map > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29 > 3: map_panic::main > at ./map-panic.rs:2:30 > 4: core::ops::function::FnOnce::call_once > at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 > note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. > ``` > > [RFC 3127 said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc) > > > We want to change this behaviour such that, when rust-src source files can be discovered, the virtual path is discarded and therefore the local path will be embedded, unless there is a --remap-path-prefix that causes this local path to be remapped in the usual way. > > This PR implements this behaviour. When `rust-src` is present at compile time, rustc replaces /rustc/$hash with a real path into local rust-src with best effort. To sanitise this, users must explicitly supply `--remap-path-prefix=<path to rust-src>=foo`. cc `@cbeuw` Fix #105907 Fix #85463 try-job: dist-x86_64-linux try-job: x86_64-msvc try-job: dist-x86_64-msvc try-job: armhf-gnu
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Labels
L-dropping_copy_types
Lint: dropping_copy_types
S-waiting-on-bors
Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
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This PR fixes the handling of spans with different context (aka macro arguments) than the primary expression within the different
{drop,forget}ing_copy_types
and{drop,forget}ing_references
lints.Before
With this PR
@rustbot label +L-dropping_copy_types