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f78a1bd89a
```
error[E0308]: `if` and `else` have incompatible types
--> $DIR/if-else-chain-missing-else.rs:12:12
|
LL | let x = if let Ok(x) = res {
| ______________-
LL | | x
| | - expected because of this
LL | | } else if let Err(e) = res {
| | ____________^
LL | || return Err(e);
LL | || };
| || ^
| ||_____|
| |_____`if` and `else` have incompatible types
| expected `i32`, found `()`
|
= note: `if` expressions without `else` evaluate to `()`
= note: consider adding an `else` block that evaluates to the expected type
```
We probably want a longer explanation and fewer spans on this case.
Partially address #133316.
21 lines
341 B
Rust
21 lines
341 B
Rust
enum Cause { Cause1, Cause2 }
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struct MyErr { x: Cause }
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fn main() {
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_ = f();
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}
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fn f() -> Result<i32, MyErr> {
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let res = could_fail();
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let x = if let Ok(x) = res {
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x
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} else if let Err(e) = res { //~ ERROR `if` and `else`
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return Err(e);
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};
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Ok(x)
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}
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fn could_fail() -> Result<i32, MyErr> {
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Ok(0)
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}
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