1 //! Attributes injected into the crate root from command line using `-Z crate-attr`.
3 use rustc_ast::ast::{self, AttrItem, AttrStyle};
4 use rustc_ast::attr::mk_attr;
6 use rustc_session::parse::ParseSess;
7 use rustc_span::FileName;
9 pub fn inject(mut krate: ast::Crate, parse_sess: &ParseSess, attrs: &[String]) -> ast::Crate {
10 for raw_attr in attrs {
11 let mut parser = rustc_parse::new_parser_from_source_str(
13 FileName::cli_crate_attr_source_code(&raw_attr),
17 let start_span = parser.token.span;
18 let AttrItem { path, args } = match parser.parse_attr_item() {
25 let end_span = parser.token.span;
26 if parser.token != token::Eof {
27 parse_sess.span_diagnostic.span_err(start_span.to(end_span), "invalid crate attribute");
31 krate.attrs.push(mk_attr(AttrStyle::Inner, path, args, start_span.to(end_span)));