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Diffstat (limited to 'src/libsyntax/ext/bytes.rs')
| -rw-r--r-- | src/libsyntax/ext/bytes.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libsyntax/ext/bytes.rs b/src/libsyntax/ext/bytes.rs index b87a25d4a44..658c28f8202 100644 --- a/src/libsyntax/ext/bytes.rs +++ b/src/libsyntax/ext/bytes.rs @@ -19,6 +19,14 @@ use ext::build::AstBuilder; pub fn expand_syntax_ext(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree]) -> Box<base::MacResult> { + cx.span_warn(sp, "`bytes!` is deprecated, use `b\"foo\"` literals instead"); + cx.parse_sess.span_diagnostic.span_note(sp, + "see http://doc.rust-lang.org/rust.html#byte-and-byte-string-literals \ + for documentation"); + cx.parse_sess.span_diagnostic.span_note(sp, + "see https://github.com/rust-lang/rust/blob/master/src/etc/2014-06-rewrite-bytes-macros.py \ + for a automated migration"); + // Gather all argument expressions let exprs = match get_exprs_from_tts(cx, sp, tts) { None => return DummyResult::expr(sp), |