diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/tt/transcribe.rs | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/src/libsyntax/ext/tt/transcribe.rs b/src/libsyntax/ext/tt/transcribe.rs index 0cefcf1ce03..e3586c1854c 100644 --- a/src/libsyntax/ext/tt/transcribe.rs +++ b/src/libsyntax/ext/tt/transcribe.rs @@ -170,10 +170,9 @@ pub fn transcribe( } LockstepIterSize::Contradiction(ref msg) => { - // FIXME: this should be impossible. I (mark-i-m) believe it would - // represent a bug in the macro_parser. - // FIXME #2887 blame macro invoker instead - cx.span_fatal(seq.span(), &msg[..]); + // This should never happen because the macro parser should generate + // properly-sized matches for all meta-vars. + cx.span_bug(seq.span(), &msg[..]); } LockstepIterSize::Constraint(len, _) => { @@ -188,14 +187,13 @@ pub fn transcribe( // Is the repetition empty? if len == 0 { if seq.op == quoted::KleeneOp::OneOrMore { - // FIXME: this should be impossible because we check for this in - // macro_parser.rs - // FIXME #2887 blame invoker - cx.span_fatal(sp.entire(), "this must repeat at least once"); + // This should be impossible because the macro parser would not + // match the given macro arm. + cx.span_bug(sp.entire(), "this must repeat at least once"); } } else { // 0 is the initial counter (we have done 0 repretitions so far). `len` - // is the total number of reptitions we should generate. + // is the total number of reptitions we should generate. repeats.push((0, len)); // The first time we encounter the sequence we push it to the stack. It |