Rollup of 7 pull requests #129256
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Rollup of 7 pull requests #129256
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For following:
```rust
struct A;
impl A {
fn test4(&self) {
let mut _file = File::create("foo.txt")?;
//~^ ERROR the `?` operator can only be used in a method
}
```
Suggest:
```rust
impl A {
fn test4(&self) -> Result<(), Box<dyn std::error::Error>> {
let mut _file = File::create("foo.txt")?;
//~^ ERROR the `?` operator can only be used in a method
Ok(())
}
}
```
For rust-lang#125997
The documentation incorrectly stated that std::env::var could return an error for variable names containing '=' or the NUL byte. Copy the correct documentation from var_os. var_os was fixed in Commit 8a7a665, Pull Request rust-lang#109894, which closed Issue rust-lang#109893. This documentation was incorrectly added in commit f2c0f29, which replaced a panic in var_os by returning None, but documented the change as "May error if ...". Reference the specific error values and link to them.
... by using `std::fs::remove_dir_all`, which handles a bunch of edge cases including read-only files and symlinks which are extremely tricky on Windows.
During config parsing, some bootstrap logic (e.g., `download-ci-llvm`) checks certain sources and acts based on their state. This means that if path is a git submodule, bootstrap needs to update it before checking its state. Otherwise it may make incorrect assumptions by relying on outdated sources. To enable submodule updates during config parsing, we need to move the `update_submodule` function from the `Build` to `Config` instance, so we can access to it during the parsing process. Signed-off-by: onur-ozkan <[email protected]>
Signed-off-by: onur-ozkan <[email protected]>
Signed-off-by: onur-ozkan <[email protected]>
It's only valid when applied to a type or lifetime parameter in `Drop` trait implementation.
Suggest adding Result return type for associated method in E0277. Recommit rust-lang#126515 because I messed up during rebase, Suggest adding Result return type for associated method in E0277. For following: ```rust struct A; impl A { fn test4(&self) { let mut _file = File::create("foo.txt")?; //~^ ERROR the `?` operator can only be used in a method } ``` Suggest: ```rust impl A { fn test4(&self) -> Result<(), Box<dyn std::error::Error>> { let mut _file = File::create("foo.txt")?; //~^ ERROR the `?` operator can only be used in a method Ok(()) } } ``` For rust-lang#125997 r? ````@cjgillot````
…rkingjubilee doc: std::env::var: Returns None for names with '=' or NUL byte The documentation incorrectly stated that std::env::var could return an error for variable names containing '=' or the NUL byte. Copy the correct documentation from var_os. var_os was fixed in Commit 8a7a665, Pull Request rust-lang#109894, which closed Issue rust-lang#109893. This documentation was incorrectly added in commit f2c0f29, which replaced a panic in var_os by returning None, but documented the change as "May error if ...". Reference the specific error values and link to them.
…links, r=Kobzol bootstrap: fix clean's remove_dir_all implementation It turns out bootstrap's `clean.rs`'s hand-rolled `rm_rf` (which probably comes before `std::fs::remove_dir_all` was stable) is very broken on native Windows around both read-only files/directories and especially symbolic links. So instead of rolling our own, just use `std::fs::remove_dir_all`. This is a blocker for compiletest's own `rm_rf` implementation rust-lang#129155 which happens to be also buggy, which in turn is a blocker for the rmake.rs test port rust-lang#128562 that heavily exercises symlinks (I was reviewing rust-lang#128562 and testing it on native Windows which is how I found out). I also left a FIXME for `detect_src_and_out` due to a failing assertion on native Windows (opened rust-lang#129188): ``` ---- core::config::tests::detect_src_and_out stdout ---- thread 'core::config::tests::detect_src_and_out' panicked at src\core\config\tests.rs:72:13: assertion `left == right` failed left: "E:\\tmp" right: "C:\\tmp" ``` Fixes rust-lang#112544 (because now we handle Windows symlinks properly). try-job: x86_64-msvc try-job: i686-mingw try-job: test-various try-job: armhf-gnu try-job: aarch64-apple try-job: aarch64-gnu
…ulacrum Fix bootstrap test `detect_src_and_out` on Windows Fixes rust-lang#129188 by making sure it's properly testing the right path for the platform.
…es, r=Mark-Simulacrum improve submodule updates During config parsing, some bootstrap logic (e.g., `download-ci-llvm`) checks certain sources (for `download-ci-llvm`, it's `src/llvm-project`) and acts based on their state. This means that if path is a git submodule, bootstrap needs to update it before checking its state. Otherwise it may make incorrect assumptions by relying on outdated sources. To enable submodule updates during config parsing, we need to move the `update_submodule` function from the `Build` to `Config`, so we can access to it during the parsing process. Closes rust-lang#122787
…piler-errors Check that `#[may_dangle]` is properly applied It's only valid when applied to a type or lifetime parameter in `Drop` trait implementation. Tracking issue: rust-lang#34761 cc rust-lang#34761 (comment)
Typo Fix a typo in a comment.
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#128084 (Suggest adding Result return type for associated method in E0277.) - rust-lang#128902 (doc: std::env::var: Returns None for names with '=' or NUL byte) - rust-lang#129187 (bootstrap: fix clean's remove_dir_all implementation) - rust-lang#129194 (Fix bootstrap test `detect_src_and_out` on Windows) - rust-lang#129231 (improve submodule updates) - rust-lang#129235 (Check that `#[may_dangle]` is properly applied) - rust-lang#129245 (Typo) r? `@ghost` `@rustbot` modify labels: rollup
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Successful merges:
detect_src_and_outon Windows #129194 (Fix bootstrap testdetect_src_and_outon Windows)#[may_dangle]is properly applied #129235 (Check that#[may_dangle]is properly applied)rustc_hirdoc comment #129245 (Typo)r? @ghost
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