44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
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// Parse `cfg_attr` with varying numbers of attributes and trailing commas
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// Completely empty `cfg_attr` input
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#[cfg_attr()] //~ error: expected identifier, found `)`
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struct NoConfigurationPredicate;
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// Zero attributes, zero trailing comma (comma manatory here)
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#[cfg_attr(all())] //~ error: expected `,`, found `)`
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struct A0C0;
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// Zero attributes, one trailing comma
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#[cfg_attr(all(),)] // Ok
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struct A0C1;
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// Zero attributes, two trailing commas
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#[cfg_attr(all(),,)] //~ ERROR expected identifier
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struct A0C2;
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// One attribute, no trailing comma
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#[cfg_attr(all(), must_use)] // Ok
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struct A1C0;
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// One attribute, one trailing comma
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#[cfg_attr(all(), must_use,)] // Ok
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struct A1C1;
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// One attribute, two trailing commas
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#[cfg_attr(all(), must_use,,)] //~ ERROR expected identifier
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struct A1C2;
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// Two attributes, no trailing comma
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#[cfg_attr(all(), must_use, deprecated)] // Ok
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struct A2C0;
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// Two attributes, one trailing comma
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#[cfg_attr(all(), must_use, deprecated,)] // Ok
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struct A2C1;
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// Two attributes, two trailing commas
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#[cfg_attr(all(), must_use, deprecated,,)] //~ ERROR expected identifier
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struct A2C2;
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fn main() {}
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