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

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