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Cleanup: Use rustc's is_proc_macro_attr #5458

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merged 1 commit into from Apr 14, 2020
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@@ -1,4 +1,5 @@
use rustc_ast::ast;
use rustc_ast::expand::is_proc_macro_attr;
use rustc_errors::Applicability;
use rustc_session::Session;
use std::str::FromStr;
@@ -123,12 +124,5 @@ fn parse_attrs<F: FnMut(u64)>(sess: &Session, attrs: &[ast::Attribute], name: &'
/// Return true if the attributes contain any of `proc_macro`,
/// `proc_macro_derive` or `proc_macro_attribute`, false otherwise
pub fn is_proc_macro(attrs: &[ast::Attribute]) -> bool {
use rustc_span::Symbol;

let syms = [
Symbol::intern("proc_macro"),
Symbol::intern("proc_macro_derive"),
Symbol::intern("proc_macro_attribute"),
];
attrs.iter().any(|attr| syms.iter().any(move |&s| attr.check_name(s)))
attrs.iter().any(is_proc_macro_attr)
}