rust/tests/ui/issues/issue-3026.rs

// run-pass
// pretty-expanded FIXME #23616

use std::collections::HashMap;

pub fn main() {
    let x: Box<_>;
    let mut buggy_map: HashMap<usize, &usize> = HashMap::new();
    x = Box::new(1);
    buggy_map.insert(42, &*x);
}
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 12:18:55 +00:00			`// run-pass`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 20:13:15 +00:00			`// pretty-expanded FIXME #23616`

Fallout from the libcollections movement 2014-05-30 02:03:06 +00:00			`use std::collections::HashMap;`
Test cases, some xfailed 2012-12-07 02:32:13 +00:00
check-fast fallout from removing export, r=burningtree 2013-02-02 03:43:17 +00:00			`pub fn main() {`
Add `: Box<_>` or `::Box<_>` type annotations to various places. This is the kind of change that one is expected to need to make to accommodate overloaded-`box`. ---- Note that this is not all of the changes necessary to accommodate Issue 22181. It is merely the subset of those cases where there was already a let-binding in place that made it easy to add the necesasry type ascription. (For unnamed intermediate `Box` values, one must go down a different route; `Box::new` is the option that maximizes portability, but has potential inefficiency depending on whether the call is inlined.) ---- There is one place worth note, `run-pass/coerce-match.rs`, where I used an ugly form of `Box<_>` type ascription where I would have preferred to use `Box::new` to accommodate overloaded-`box`. I deliberately did not use `Box::new` here, because that is already done in coerce-match-calls.rs. ---- Precursor for overloaded-`box` and placement-`in`; see Issue 22181. 2015-02-17 20:41:32 +00:00			`let x: Box<_>;`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`let mut buggy_map: HashMap<usize, &usize> = HashMap::new();`
Remove even more box syntax uses from src/test Prior work, notably 6550021124451628b1efc60c59284465b109e3aa from #88316 has removed box syntax from most of the testsuite. However, some tests were left out. This commit removes box_syntax uses from more locations in src/test. Some tests that are very box syntax specific are not being migrated. 2022-07-07 02:36:10 +00:00			`x = Box::new(1);`
Rewrite the coercion code to be more readable, more sound, and to reborrow when needed. Regarding soundness: there was a subtle bug in how it was done before; see the compile-fail test for an example. Regarding reborrowing: reborrowing allows mut and const slices/borrowed-pointers to be used with pure fns that expect immutable data. r=brson 2013-01-23 01:20:08 +00:00			`buggy_map.insert(42, &*x);`
Test cases, some xfailed 2012-12-07 02:32:13 +00:00			`}`