17 lines
457 B
Rust
17 lines
457 B
Rust
macro_rules! sink {
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($tt:tt) => {()}
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}
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fn main() {
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let _ = "Foo"_;
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//~^ ERROR underscore literal suffix is not allowed
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// This is ok, because `__` is a valid identifier and the macro consumes it
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// before proper parsing happens.
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let _ = sink!("Foo"__);
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// This is not ok, even as an input to a macro, because the `_` suffix is
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// never allowed.
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sink!("Foo"_);
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//~^ ERROR underscore literal suffix is not allowed
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}
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