27 lines
711 B
Rust
27 lines
711 B
Rust
macro_rules! foo {
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($a:ident) => ();
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($a:ident, $b:ident) => ();
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($a:ident, $b:ident, $c:ident) => ();
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($a:ident, $b:ident, $c:ident, $d:ident) => ();
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($a:ident, $b:ident, $c:ident, $d:ident, $e:ident) => ();
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}
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macro_rules! bar {
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($lvl:expr, $($arg:tt)+) => {}
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}
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fn main() {
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println!("{}" a);
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//~^ ERROR expected token: `,`
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foo!(a b);
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//~^ ERROR no rules expected the token `b`
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foo!(a, b, c, d e);
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//~^ ERROR no rules expected the token `e`
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foo!(a, b, c d, e);
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//~^ ERROR no rules expected the token `d`
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foo!(a, b, c d e);
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//~^ ERROR no rules expected the token `d`
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bar!(Level::Error, );
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//~^ ERROR unexpected end of macro invocation
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}
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