2017-02-17 09:32:25 -06:00
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error[E0308]: mismatched types
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--> $DIR/ex2b-push-no-existing-names.rs:16:12
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16 | x.push(y);
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| ^ lifetime mismatch
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Highlight and simplify mismatched types
Shorten mismatched types errors by replacing subtypes that are not
different with `_`, and highlighting only the subtypes that are
different.
Given a file
```rust
struct X<T1, T2> {
x: T1,
y: T2,
}
fn foo() -> X<X<String, String>, String> {
X { x: X {x: "".to_string(), y: 2}, y: "".to_string()}
}
fn bar() -> Option<String> {
"".to_string()
}
```
provide the following output
```rust
error[E0308]: mismatched types
--> file.rs:6:5
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6 | X { x: X {x: "".to_string(), y: 2}, y: "".to_string()}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::string::String`, found {integer}
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= note: expected type `X<X<_, std::string::String>, _>`
^^^^^^^^^^^^^^^^^^^ // < highlighted
found type `X<X<_, {integer}>, _>`
^^^^^^^^^ // < highlighted
error[E0308]: mismatched types
--> file.rs:6:5
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10 | "".to_string()
| ^^^^^^^^^^^^^^ expected struct `std::option::Option`, found `std::string::String`
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= note: expected type `Option<std::string::String>`
^^^^^^^ ^ // < highlighted
found type `std::string::String`
```
2017-02-17 16:31:59 -06:00
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= note: expected type `Ref<'_, _>`
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found type `Ref<'_, _>`
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2017-02-17 09:32:25 -06:00
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note: the anonymous lifetime #3 defined on the body at 15:43...
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--> $DIR/ex2b-push-no-existing-names.rs:15:44
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15 | fn foo(x: &mut Vec<Ref<i32>>, y: Ref<i32>) {
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| ____________________________________________^ starting here...
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16 | | x.push(y);
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17 | | }
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| |_^ ...ending here
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note: ...does not necessarily outlive the anonymous lifetime #2 defined on the body at 15:43
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--> $DIR/ex2b-push-no-existing-names.rs:15:44
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15 | fn foo(x: &mut Vec<Ref<i32>>, y: Ref<i32>) {
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| ____________________________________________^ starting here...
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16 | | x.push(y);
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17 | | }
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| |_^ ...ending here
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error: aborting due to previous error
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