rust/src/test/ui/noncopyable-class.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[E0599]: no method named `clone` found for struct `Foo` in the current scope
--> $DIR/noncopyable-class.rs:34:16
|
LL | struct Foo {
| ---------- method `clone` not found for this
...
LL | let _y = x.clone();
| ^^^^^ method not found in `Foo`
|
::: $SRC_DIR/core/src/clone.rs:LL:COL
|
LL | fn clone(&self) -> Self;
| -----
| |
| the method is available for `Arc<Foo>` here
| the method is available for `Rc<Foo>` here
|
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `clone`, perhaps you need to implement it:
candidate #1: `Clone`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0599`.