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a1dfa0c6 1error: macro expansion ignores token `assert_eq` and any following
94222f64 2 --> $DIR/macro-in-expression-context.rs:12:9
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3 |
4LL | assert_eq!("B", "B");
5 | ^^^^^^^^^
6...
7LL | foo!()
8 | ------- help: you might be missing a semicolon here: `;`
9 | |
10 | caused by the macro expansion here
11 |
12 = note: the usage of `foo!` is likely invalid in expression context
13
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14warning: trailing semicolon in macro used in expression position
15 --> $DIR/macro-in-expression-context.rs:5:29
16 |
17LL | assert_eq!("A", "A");
18 | ^
19...
20LL | foo!()
21 | ------ in this macro invocation
22 |
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23 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
24 = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
25 = note: macro invocations at the end of a block are treated as expressions
26 = note: to ignore the value produced by the macro, add a semicolon after the invocation of `foo`
2b03887a 27 = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
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28 = note: this warning originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
29
30error: aborting due to previous error; 1 warning emitted
a1dfa0c6 31