mirror of https://github.com/rust-lang/rust
27 lines
506 B
Rust
27 lines
506 B
Rust
//@ check-pass
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// This file is used to test the behavior of the early-pass syntax warnings.
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// If macro syntax is stabilized, replace with a different unstable syntax.
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#[cfg(FALSE)]
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macro b() {}
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//~^ WARN: `macro` is experimental
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//~| WARN: unstable syntax
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macro_rules! identity {
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($($x:tt)*) => ($($x)*);
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}
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#[cfg(FALSE)]
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identity! {
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macro d() {} // No error
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}
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identity! {
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#[cfg(FALSE)]
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macro e() {}
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//~^ WARN: `macro` is experimental
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//~| WARN: unstable syntax
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}
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fn main() {}
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