bjoernager/rust
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Recover from invalid struct item syntax

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Parse unsupported "default field const values":

```rust
struct S {
    field: Type = const_val,
}
```

Recover from small `:` typo and provide suggestion:

```rust
struct S {
    field; Type,
    field2= Type,
}
```
This commit is contained in:
Esteban Küber 2021-05-01 12:58:15 -07:00
parent 890803d372
commit 7697ce4560
4 changed files with 207 additions and 1 deletions
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35
src/test/ui/parser/struct-default-values-and-missing-field-separator.rs Normal file
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@ -0,0 +1,35 @@
// run-rustfix
#![allow(dead_code)]
enum E {
A,
}
struct S {
field1: i32 = 42, //~ ERROR default values on `struct` fields aren't supported
field2: E = E::A, //~ ERROR default values on `struct` fields aren't supported
field3: i32 = 1 + 2, //~ ERROR default values on `struct` fields aren't supported
field4: i32 = { 1 + 2 }, //~ ERROR default values on `struct` fields aren't supported
field5: E = foo(42), //~ ERROR default values on `struct` fields aren't supported
field6: E = { foo(42) }, //~ ERROR default values on `struct` fields aren't supported
}
struct S1 {
field1: i32 //~ ERROR expected `,`, or `}`, found `field2`
field2: E //~ ERROR expected `,`, or `}`, found `field3`
field3: i32 = 1 + 2, //~ ERROR default values on `struct` fields aren't supported
field4: i32 = { 1 + 2 }, //~ ERROR default values on `struct` fields aren't supported
field5: E = foo(42), //~ ERROR default values on `struct` fields aren't supported
field6: E = { foo(42) }, //~ ERROR default values on `struct` fields aren't supported
}
struct S2 {
field1 = i32, //~ ERROR expected `:`, found `=`
field2; E, //~ ERROR expected `:`, found `;`
}
const fn foo(_: i32) -> E {
E::A
}
fn main() {}