rust/src/test/ui/moves/move-in-guard-1.stderr
Dan Aloni 07e7823c01 pretty: trim paths of unique symbols
If a symbol name can only be imported from one place for a type, and
as long as it was not glob-imported anywhere in the current crate, we
can trim its printed path and print only the name.

This has wide implications on error messages with types, for example,
shortening `std::vec::Vec` to just `Vec`, as long as there is no other
`Vec` importable anywhere.

This adds a new '-Z trim-diagnostic-paths=false' option to control this
feature.

On the good path, with no diagnosis printed, we should try to avoid
issuing this query, so we need to prevent trimmed_def_paths query on
several cases.

This change also relies on a previous commit that differentiates
between `Debug` and `Display` on various rustc types, where the latter
is trimmed and presented to the user and the former is not.
2020-09-02 22:26:37 +03:00

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error[E0382]: use of moved value: `x`
--> $DIR/move-in-guard-1.rs:10:24
|
LL | let x: Box<_> = box 1;
| - move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait
...
LL | (1, _) if take(x) => (),
| - value moved here
LL | (_, 2) if take(x) => (),
| ^ value used here after move
error: aborting due to previous error
For more information about this error, try `rustc --explain E0382`.