user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Wording changes to object unsafe trait errors

Browse source 
Stemming from the thread at https://twitter.com/indygreg/status/1223279056398929920
This commit is contained in:
Esteban Küber 2020-01-31 16:47:00 -08:00
parent 3ca1c5d5b5
commit 413bfa4b98
51 changed files with 332 additions and 91 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/test/ui/error-codes/E0033-teach.stderr
View file

@ -7,11 +7,15 @@ LL | let trait_obj: &dyn SomeTrait = SomeTrait;
error[E0038]: the trait `SomeTrait` cannot be made into an object
--> $DIR/E0033-teach.rs:8:20
|
LL | trait SomeTrait {
| --------- this trait cannot be made into an object...
LL | fn foo();
| --- associated function `foo` has no `self` parameter
| --- ...because associated function `foo` has no `self` parameter
...
LL | let trait_obj: &dyn SomeTrait = SomeTrait;
| ^^^^^^^^^^^^^^ the trait `SomeTrait` cannot be made into an object
|
= help: consider turning `foo` into a method by giving it a `&self` argument or constraining it with `where Self: Sized`
error[E0033]: type `&dyn SomeTrait` cannot be dereferenced
--> $DIR/E0033-teach.rs:12:9

6
src/test/ui/error-codes/E0033.stderr
View file

@ -7,11 +7,15 @@ LL | let trait_obj: &dyn SomeTrait = SomeTrait;
error[E0038]: the trait `SomeTrait` cannot be made into an object
--> $DIR/E0033.rs:6:20
|
LL | trait SomeTrait {
| --------- this trait cannot be made into an object...
LL | fn foo();
| --- associated function `foo` has no `self` parameter
| --- ...because associated function `foo` has no `self` parameter
...
LL | let trait_obj: &dyn SomeTrait = SomeTrait;
| ^^^^^^^^^^^^^^ the trait `SomeTrait` cannot be made into an object
|
= help: consider turning `foo` into a method by giving it a `&self` argument or constraining it with `where Self: Sized`
error[E0033]: type `&dyn SomeTrait` cannot be dereferenced
--> $DIR/E0033.rs:10:9

6
src/test/ui/error-codes/E0038.stderr
View file

@ -1,11 +1,15 @@
error[E0038]: the trait `Trait` cannot be made into an object
--> $DIR/E0038.rs:5:16
|
LL | trait Trait {
| ----- this trait cannot be made into an object...
LL | fn foo(&self) -> Self;
| --- method `foo` references the `Self` type in its parameters or return type
| --- ...because method `foo` references the `Self` type in its parameters or return type
...
LL | fn call_foo(x: Box<dyn Trait>) {
| ^^^^^^^^^^^^^^ the trait `Trait` cannot be made into an object
|
= help: consider moving `foo` to another trait
error: aborting due to previous error