Detect * operator on !Sized expression #128467
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| I guess this PR is resolving #128199 ? |
``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ```
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| @bors r+ rollup |
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bors added S-waiting-on-bors workingjubilee added a commit to workingjubilee/rustc that referenced this pull request Aug 24, 2024
Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
workingjubilee added a commit to workingjubilee/rustc that referenced this pull request Aug 24, 2024
Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
workingjubilee added a commit to workingjubilee/rustc that referenced this pull request Aug 24, 2024
Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 24, 2024
…kingjubilee Rollup of 10 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129416 (library: Move unstable API of new_uninit to new features) - rust-lang#129418 (rustc: Simplify getting sysroot library directory) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) r? `@ghost` `@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Aug 24, 2024
Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 24, 2024
…iaskrgr Rollup of 11 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129418 (rustc: Simplify getting sysroot library directory) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (make text more easy to read) r? `@ghost` `@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Aug 24, 2024
Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 24, 2024
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (make text more easy to read) r? `@ghost` `@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 24, 2024
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (make text more easy to read) r? `@ghost` `@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 24, 2024
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (make text more easy to read) r? `@ghost` `@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 25, 2024
Rollup of 10 pull requests Successful merges: - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (Make wasm32 platform support docs easier to read) - rust-lang#129512 (update the doc comment on lintchecker b/c it parses html now) r? `@ghost` `@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 25, 2024
Rollup of 10 pull requests Successful merges: - rust-lang#128467 (Detect `*` operator on `!Sized` expression) - rust-lang#128524 (Don't suggest turning crate-level attributes into outer style) - rust-lang#128735 (Add a special case for `CStr`/`CString` in the `improper_ctypes` lint) - rust-lang#129429 (Print the generic parameter along with the variance in dumps.) - rust-lang#129430 (rustdoc: show exact case-sensitive matches first) - rust-lang#129449 (Put Pin::as_deref_mut in impl Pin<Ptr> / rearrange Pin methods) - rust-lang#129481 (Update `compiler_builtins` to `0.1.121`) - rust-lang#129482 (Add myself to the review rotation for libs) - rust-lang#129492 (Make wasm32 platform support docs easier to read) - rust-lang#129512 (update the doc comment on lintchecker b/c it parses html now) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Aug 25, 2024
Rollup merge of rust-lang#128467 - estebank:unsized-args, r=cjgillot Detect `*` operator on `!Sized` expression The suggestion is new: ``` error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/unsized-str-in-return-expr-arg-and-local.rs:15:9 | LL | let x = *""; | ^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: all local variables must have a statically known size = help: unsized locals are gated as an unstable feature help: references to `!Sized` types like `&str` are `Sized`; consider not dereferencing the expression | LL - let x = *""; LL + let x = ""; | ``` Fix rust-lang#128199.
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Fix #128199.