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Add visit_attribute to Visitor, use it for unused_attribute
The lint was missing a *lot* of cases previously.
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
#![deny(unused_attribute)] | ||
#![allow(attribute_usage, dead_code, unused_imports)] | ||
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#![foo] //~ ERROR unused attribute | ||
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#[foo] //~ ERROR unused attribute | ||
extern crate std; | ||
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#[foo] //~ ERROR unused attribute | ||
use std::collections; | ||
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#[foo] //~ ERROR unused attribute | ||
extern "C" { | ||
#[foo] //~ ERROR unused attribute | ||
fn foo(); | ||
} | ||
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#[foo] //~ ERROR unused attribute | ||
mod foo { | ||
#[foo] //~ ERROR unused attribute | ||
pub enum Foo { | ||
#[foo] //~ ERROR unused attribute | ||
Bar, | ||
} | ||
} | ||
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#[foo] //~ ERROR unused attribute | ||
fn bar(f: foo::Foo) { | ||
match f { | ||
#[foo] //~ ERROR unused attribute | ||
foo::Bar => {} | ||
} | ||
} | ||
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#[foo] //~ ERROR unused attribute | ||
struct Foo { | ||
#[foo] //~ ERROR unused attribute | ||
a: int | ||
} | ||
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#[foo] //~ ERROR unused attribute | ||
trait Baz { | ||
#[foo] //~ ERROR unused attribute | ||
fn blah(); | ||
#[foo] //~ ERROR unused attribute | ||
fn blah2() {} | ||
} | ||
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fn main() {} |