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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/borrowck/issue-7573.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/borrowck/issue-7573.rs')
-rw-r--r-- | src/test/ui/borrowck/issue-7573.rs | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/issue-7573.rs b/src/test/ui/borrowck/issue-7573.rs new file mode 100644 index 000000000..7c0741153 --- /dev/null +++ b/src/test/ui/borrowck/issue-7573.rs @@ -0,0 +1,41 @@ +pub struct CrateId { + local_path: String, + junk: String, +} + +impl CrateId { + fn new(s: &str) -> CrateId { + CrateId { local_path: s.to_string(), junk: "wutevs".to_string() } + } +} + +pub fn remove_package_from_database() { + let mut lines_to_use: Vec<&CrateId> = Vec::new(); + //~^ NOTE `lines_to_use` declared here, outside of the closure body + let push_id = |installed_id: &CrateId| { + //~^ NOTE `installed_id` is a reference that is only valid in the closure body + lines_to_use.push(installed_id); + //~^ ERROR borrowed data escapes outside of closure + //~| NOTE `installed_id` escapes the closure body here + }; + list_database(push_id); + + for l in &lines_to_use { + println!("{}", l.local_path); + } +} + +pub fn list_database<F>(mut f: F) +where + F: FnMut(&CrateId), +{ + let stuff = ["foo", "bar"]; + + for l in &stuff { + f(&CrateId::new(*l)); + } +} + +pub fn main() { + remove_package_from_database(); +} |