Replace src: &mut dyn Read with String

1 files changed, 1 insertions, 4 deletions

diff --git a/src/libsyntax/parse/lexer/comments.rs b/src/libsyntax/parse/lexer/comments.rs
index 988f1aa38d9..6ed2a7adad1 100644
--- a/src/libsyntax/parse/lexer/comments.rs
+++ b/src/libsyntax/parse/lexer/comments.rs
@@ -8,7 +8,6 @@ use crate::parse::lexer::{self, ParseSess, StringReader};
 use syntax_pos::{BytePos, CharPos, Pos, FileName};
 use log::debug;
 
-use std::io::Read;
 use std::usize;
 
 #[derive(Clone, Copy, PartialEq, Debug)]
@@ -340,10 +339,8 @@ fn consume_comment(rdr: &mut StringReader<'_>,
 
 // it appears this function is called only from pprust... that's
 // probably not a good thing.
-pub fn gather_comments(sess: &ParseSess, path: FileName, srdr: &mut dyn Read) -> Vec<Comment>
+pub fn gather_comments(sess: &ParseSess, path: FileName, src: String) -> Vec<Comment>
 {
-    let mut src = String::new();
-    srdr.read_to_string(&mut src).unwrap();
     let cm = SourceMap::new(sess.source_map().path_mapping().clone());
     let source_file = cm.new_source_file(path, src);
     let mut rdr = lexer::StringReader::new(sess, source_file, None);