syntax::ext: replace span_fatal with span_err in many places.

This means that compilation continues for longer, and so we can see more
errors per compile. This is mildly more user-friendly because it stops
users having to run rustc n times to see n macro errors: just run it
once to see all of them.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/libsyntax/ext/bytes.rs b/src/libsyntax/ext/bytes.rs
index 945e7c0d666..0c9a23be558 100644
--- a/src/libsyntax/ext/bytes.rs
+++ b/src/libsyntax/ext/bytes.rs
@@ -20,7 +20,10 @@ use std::char;
 
 pub fn expand_syntax_ext(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree]) -> base::MacResult {
     // Gather all argument expressions
-    let exprs = get_exprs_from_tts(cx, sp, tts);
+    let exprs = match get_exprs_from_tts(cx, sp, tts) {
+        None => return MacResult::dummy_expr(),
+        Some(e) => e,
+    };
     let mut bytes = ~[];
 
     for expr in exprs.iter() {