49ed25b5d2
Notes about tests: - tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs: some messages are now duplicated due to repeated parsing. - tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs: ditto. - `tests/ui/proc-macro/macro-rules-derive-cfg.rs`: the diff looks large but the only difference is the insertion of a single invisible-delimited group around a metavar. - `tests/ui/attributes/nonterminal-expansion.rs`: a slight span degradation, somehow related to the recent massive attr parsing rewrite (#135726). I couldn't work out exactly what is going wrong, but I don't think it's worth holding things up for a single slightly suboptimal error message.
71 lines
2 KiB
Text
71 lines
2 KiB
Text
error: `cfg` is not followed by parentheses
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--> $DIR/cfg-attr-syntax-validation.rs:1:1
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LL | #[cfg]
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| ^^^^^^ help: expected syntax is: `cfg(/* predicate */)`
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error: `cfg` is not followed by parentheses
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--> $DIR/cfg-attr-syntax-validation.rs:4:1
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LL | #[cfg = 10]
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| ^^^^^^^^^^^ help: expected syntax is: `cfg(/* predicate */)`
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error: `cfg` predicate is not specified
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--> $DIR/cfg-attr-syntax-validation.rs:7:1
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LL | #[cfg()]
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| ^^^^^^^^ help: expected syntax is: `cfg(/* predicate */)`
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error: multiple `cfg` predicates are specified
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--> $DIR/cfg-attr-syntax-validation.rs:10:10
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LL | #[cfg(a, b)]
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| ^
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error: `cfg` predicate key cannot be a literal
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--> $DIR/cfg-attr-syntax-validation.rs:13:7
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LL | #[cfg("str")]
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| ^^^^^
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error: `cfg` predicate key must be an identifier
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--> $DIR/cfg-attr-syntax-validation.rs:16:7
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LL | #[cfg(a::b)]
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| ^^^^
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error[E0537]: invalid predicate `a`
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--> $DIR/cfg-attr-syntax-validation.rs:19:7
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LL | #[cfg(a())]
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| ^^^
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error[E0565]: literal in `cfg` predicate value must be a string
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--> $DIR/cfg-attr-syntax-validation.rs:22:11
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LL | #[cfg(a = 10)]
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| ^^
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error[E0565]: literal in `cfg` predicate value must be a string
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--> $DIR/cfg-attr-syntax-validation.rs:25:11
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LL | #[cfg(a = b"hi")]
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| -^^^^
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| |
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| help: consider removing the prefix
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error: expected unsuffixed literal, found `expr` metavariable
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--> $DIR/cfg-attr-syntax-validation.rs:30:25
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LL | #[cfg(feature = $expr)]
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| ^^^^^
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...
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LL | generate_s10!(concat!("nonexistent"));
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| ------------------------------------- in this macro invocation
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= note: this error originates in the macro `generate_s10` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 10 previous errors
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Some errors have detailed explanations: E0537, E0565.
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For more information about an error, try `rustc --explain E0537`.
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