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#![feature(coverage_attribute)]
//@ edition: 2021
//@ reference: attributes.coverage.syntax
// Demonstrates the diagnostics produced when using the syntax `#[coverage]`,
// which should not be allowed.
//
// The syntax is tested both in places that can have a coverage attribute,
// and in places that cannot have a coverage attribute, to demonstrate the
// interaction between multiple errors.
#[coverage]
//~^ ERROR malformed `coverage` attribute input
mod my_mod {}
mod my_mod_inner {
#![coverage]
//~^ ERROR malformed `coverage` attribute input
}
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
struct MyStruct;
#[coverage]
//~^ ERROR malformed `coverage` attribute input
impl MyStruct {
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
const X: u32 = 7;
}
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
trait MyTrait {
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
const X: u32;
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
type T;
}
#[coverage]
//~^ ERROR malformed `coverage` attribute input
impl MyTrait for MyStruct {
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
const X: u32 = 8;
#[coverage]
//~^ ERROR malformed `coverage` attribute input
//~| ERROR attribute cannot be used on
type T = ();
}
#[coverage]
//~^ ERROR malformed `coverage` attribute input
fn main() {}
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