rust/src/test/ui/invalid-rustc_args_required_const-arguments.rs

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2020-09-29 11:44:32 -05:00
#![feature(rustc_attrs)]
#[rustc_args_required_const(0)] //~ ERROR index exceeds number of arguments
fn foo1() {}
#[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
fn foo2(_: u8) {}
#[rustc_args_required_const(a)] //~ ERROR arguments should be non-negative integers
fn foo4() {}
#[rustc_args_required_const(1, a, 2, b)] //~ ERROR arguments should be non-negative integers
fn foo5(_: u8, _: u8, _: u8) {}
#[rustc_args_required_const(0)] //~ ERROR attribute should be applied to a function
struct S;
#[rustc_args_required_const(0usize)] //~ ERROR suffixed literals are not allowed in attributes
fn foo6(_: u8) {}
extern {
#[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
fn foo7(_: u8);
}
fn main() {}