07e7823c01
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.
67 lines
1.8 KiB
Text
67 lines
1.8 KiB
Text
error[E0435]: attempt to use a non-constant value in a constant
|
|
--> $DIR/repeat_count.rs:5:17
|
|
|
|
|
LL | let a = [0; n];
|
|
| ^ non-constant value
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:7:17
|
|
|
|
|
LL | let b = [0; ()];
|
|
| ^^ expected `usize`, found `()`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:10:17
|
|
|
|
|
LL | let c = [0; true];
|
|
| ^^^^ expected `usize`, found `bool`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:13:17
|
|
|
|
|
LL | let d = [0; 0.5];
|
|
| ^^^ expected `usize`, found floating-point number
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:16:17
|
|
|
|
|
LL | let e = [0; "foo"];
|
|
| ^^^^^ expected `usize`, found `&str`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:31:17
|
|
|
|
|
LL | let g = [0; G { g: () }];
|
|
| ^^^^^^^^^^^ expected `usize`, found struct `G`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:19:17
|
|
|
|
|
LL | let f = [0; -4_isize];
|
|
| ^^^^^^^^ expected `usize`, found `isize`
|
|
|
|
|
= note: `-4_isize` cannot fit into type `usize`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:22:23
|
|
|
|
|
LL | let f = [0_usize; -1_isize];
|
|
| ^^^^^^^^ expected `usize`, found `isize`
|
|
|
|
|
= note: `-1_isize` cannot fit into type `usize`
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/repeat_count.rs:25:17
|
|
|
|
|
LL | let f = [0; 4u8];
|
|
| ^^^ expected `usize`, found `u8`
|
|
|
|
|
help: change the type of the numeric literal from `u8` to `usize`
|
|
|
|
|
LL | let f = [0; 4usize];
|
|
| ^^^^^^
|
|
|
|
error: aborting due to 9 previous errors
|
|
|
|
Some errors have detailed explanations: E0308, E0435.
|
|
For more information about an error, try `rustc --explain E0308`.
|