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https://github.com/rust-lang/rust
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110 lines
2.9 KiB
Text
110 lines
2.9 KiB
Text
error[E0308]: mismatched types
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--> $DIR/return-bindings.rs:3:17
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LL | fn a(i: i32) -> i32 {}
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| - ^^^ expected `i32`, found `()`
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| |
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| implicitly returns `()` as its body has no tail or `return` expression
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help: consider returning the local binding `i`
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LL | fn a(i: i32) -> i32 { i }
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| +
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error[E0308]: mismatched types
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--> $DIR/return-bindings.rs:7:46
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LL | let s: String = if let Some(s) = opt_str {
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| ______________________________________________^
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LL | |
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LL | | } else {
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| |_____^ expected `String`, found `()`
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help: consider returning the local binding `s`
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LL ~ let s: String = if let Some(s) = opt_str {
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LL + s
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LL ~
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error[E0308]: mismatched types
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--> $DIR/return-bindings.rs:14:11
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LL | fn c() -> Option<i32> {
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| - ^^^^^^^^^^^ expected `Option<i32>`, found `()`
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| |
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| implicitly returns `()` as its body has no tail or `return` expression
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= note: expected enum `Option<i32>`
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found unit type `()`
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help: consider returning the local binding `x`
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LL ~ let x = Some(1);
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LL + x
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error[E0308]: mismatched types
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--> $DIR/return-bindings.rs:20:46
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LL | let s: String = if let Some(s) = opt_str {
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| ______________________________________________^
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LL | |
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LL | | } else {
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| |_____^ expected `String`, found `()`
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help: consider returning the local binding `s`
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LL ~ let s: String = if let Some(s) = opt_str {
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LL + s
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LL ~
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error[E0308]: `if` and `else` have incompatible types
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--> $DIR/return-bindings.rs:30:9
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LL | let s = if let Some(s) = opt_str {
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| ______________________________________-
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LL | | } else {
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| |_____- expected because of this
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LL | String::new()
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| ^^^^^^^^^^^^^ expected `()`, found `String`
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help: consider returning the local binding `s`
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LL ~ let s = if let Some(s) = opt_str {
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LL + s
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LL ~ } else {
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error[E0308]: mismatched types
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--> $DIR/return-bindings.rs:37:20
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LL | Some(s) => {}
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| ^^ expected `String`, found `()`
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help: consider returning the local binding `s`
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LL | Some(s) => { s }
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| +
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error[E0308]: `match` arms have incompatible types
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--> $DIR/return-bindings.rs:46:17
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LL | let s = match opt_str {
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| _____________-
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LL | | Some(s) => {}
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| | -- this is found to be of type `()`
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LL | | None => String::new(),
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| | ^^^^^^^^^^^^^ expected `()`, found `String`
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LL | |
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LL | | };
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| |_____- `match` arms have incompatible types
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help: consider returning the local binding `s`
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LL | Some(s) => { s }
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| +
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error: aborting due to 7 previous errors
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For more information about this error, try `rustc --explain E0308`.
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