rust/src/test/ui/malformed/malformed-derive-entry.rs

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#[derive(Copy(Bad))]
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//~^ ERROR expected one of `)`, `,`, or `::`, found `(`
struct Test1;
#[derive(Copy="bad")]
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//~^ ERROR expected one of `)`, `,`, or `::`, found `=`
struct Test2;
#[derive()]
//~^ WARNING empty trait list
struct Test3;
#[derive]
//~^ ERROR attribute must be of the form
struct Test4;
fn main() {}