diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/expand.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs index 4ea2d4e5c68..c3f1b974815 100644 --- a/src/libsyntax/ext/expand.rs +++ b/src/libsyntax/ext/expand.rs @@ -986,9 +986,10 @@ fn expand_pat(p: P<ast::Pat>, fld: &mut MacroExpander) -> P<ast::Pat> { let fm = fresh_mark(); let marked_before = mark_tts(&tts[..], fm); let mac_span = fld.cx.original_span(); - let expanded = match expander.expand(fld.cx, - mac_span, - &marked_before[..]).make_pat() { + let pat = expander.expand(fld.cx, + mac_span, + &marked_before[..]).make_pat(); + let expanded = match pat { Some(e) => e, None => { fld.cx.span_err( |