mirror of https://github.com/rust-lang/rust
59 lines
2.1 KiB
Plaintext
59 lines
2.1 KiB
Plaintext
error[E0308]: mismatched types
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--> $DIR/issue-112007-leaked-writeln-macro-internals.rs:17:9
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LL | / if true {
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LL | | writeln!(w, "`;?` here ->")?;
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LL | | } else {
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LL | | writeln!(w, "but not here")
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| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found `Result<(), Error>`
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LL | |
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LL | | }
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| |_____- expected this to be `()`
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= note: expected unit type `()`
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found enum `Result<(), std::fmt::Error>`
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= note: this error originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider using a semicolon here
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LL | };
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| +
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help: you might have meant to return this value
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LL | return writeln!(w, "but not here");
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| ++++++ +
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help: use the `?` operator to extract the `Result<(), std::fmt::Error>` value, propagating a `Result::Err` value to the caller
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LL | writeln!(w, "but not here")?
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| +
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error[E0308]: mismatched types
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--> $DIR/issue-112007-leaked-writeln-macro-internals.rs:40:9
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LL | / if true {
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LL | | writeln!(w, "`;?` here ->")?;
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LL | | } else {
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LL | | baz!(w)
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| | ^^^^^^^ expected `()`, found `Result<(), Error>`
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LL | | }
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| |_____- expected this to be `()`
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= note: expected unit type `()`
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found enum `Result<(), std::fmt::Error>`
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= note: this error originates in the macro `writeln` which comes from the expansion of the macro `baz` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider using a semicolon here
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LL | };
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| +
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help: you might have meant to return this value
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LL | return baz!(w);
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| ++++++ +
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help: use the `?` operator to extract the `Result<(), std::fmt::Error>` value, propagating a `Result::Err` value to the caller
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LL | writeln!($w, "but not here")?
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| +
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0308`.
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