use rustc_span::hygiene::{AstPass, ExpnData, ExpnKind, LocalExpnId};
use rustc_span::source_map::SourceMap;
use rustc_span::symbol::{kw, sym, Ident, Symbol};
-use rustc_span::{FileName, Span, DUMMY_SP};
+use rustc_span::{BytePos, FileName, Span, DUMMY_SP};
use smallvec::{smallvec, SmallVec};
use std::default::Default;
ast::LitKind::Str(s, style) => return Ok((s, style, expr.span)),
ast::LitKind::ByteStr(_) => {
let mut err = cx.struct_span_err(l.span, err_msg);
+ let span = expr.span.shrink_to_lo();
err.span_suggestion(
- expr.span.shrink_to_lo(),
+ span.with_hi(span.lo() + BytePos(1)),
"consider removing the leading `b`",
"",
Applicability::MaybeIncorrect,