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and replace it with a simple note suggesting returning a value. The type mismatch error was never due to how many times the loop iterates. It is more because of the peculiar structure of what the for loop desugars to. So the note talking about iteration count didn't make sense
58 lines
1.7 KiB
Plaintext
58 lines
1.7 KiB
Plaintext
warning: denote infinite loops with `loop { ... }`
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--> $DIR/issue-27042.rs:8:9
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LL | / 'b:
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LL | |
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LL | | while true { break }; // but here we cite the whole loop
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| |__________________^ help: use `loop`
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= note: `#[warn(while_true)]` on by default
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error[E0308]: mismatched types
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--> $DIR/issue-27042.rs:6:16
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LL | let _: i32 =
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| - expected because of this assignment
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LL | 'a: // in this case, the citation is just the `break`:
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LL | loop { break };
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| ---- ^^^^^ expected `i32`, found `()`
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| this loop is expected to be of type `i32`
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help: give the `break` a value of the expected type
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LL | loop { break 42 };
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| ++
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error[E0308]: mismatched types
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--> $DIR/issue-27042.rs:8:9
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LL | let _: i32 =
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| --- expected due to this
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LL | / 'b:
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LL | |
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LL | | while true { break }; // but here we cite the whole loop
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| |____________________________^ expected `i32`, found `()`
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error[E0308]: mismatched types
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--> $DIR/issue-27042.rs:12:9
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LL | / 'c:
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LL | | for _ in None { break }; // but here we cite the whole loop
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| |_______________________________^ expected `i32`, found `()`
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= note: `for` loops evaluate to unit type `()`
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error[E0308]: mismatched types
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--> $DIR/issue-27042.rs:15:9
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LL | let _: i32 =
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| --- expected due to this
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LL | / 'd:
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LL | | while let Some(_) = None { break };
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| |__________________________________________^ expected `i32`, found `()`
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error: aborting due to 4 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0308`.
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