diff options
Diffstat (limited to 'src/libsyntax_ext/deriving/debug.rs')
| -rw-r--r-- | src/libsyntax_ext/deriving/debug.rs | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/libsyntax_ext/deriving/debug.rs b/src/libsyntax_ext/deriving/debug.rs index 6439e9aa498..323c6c388fb 100644 --- a/src/libsyntax_ext/deriving/debug.rs +++ b/src/libsyntax_ext/deriving/debug.rs @@ -61,9 +61,9 @@ fn show_substructure(cx: &mut ExtCtxt, span: Span, // build fmt.debug_struct(<name>).field(<fieldname>, &<fieldval>)....build() // or fmt.debug_tuple(<name>).field(&<fieldval>)....build() // based on the "shape". - let ident = match *substr.fields { - Struct(_) => substr.type_ident, - EnumMatching(_, v, _) => v.node.name, + let (ident, is_struct) = match *substr.fields { + Struct(vdata, _) => (substr.type_ident, vdata.is_struct()), + EnumMatching(_, v, _) => (v.node.name, v.node.data.is_struct()), EnumNonMatchingCollapsed(..) | StaticStruct(..) | StaticEnum(..) => { cx.span_bug(span, "nonsensical .fields in `#[derive(Debug)]`") } @@ -78,9 +78,9 @@ fn show_substructure(cx: &mut ExtCtxt, span: Span, let fmt = substr.nonself_args[0].clone(); let stmts = match *substr.fields { - Struct(ref fields) | EnumMatching(_, _, ref fields) => { + Struct(_, ref fields) | EnumMatching(_, _, ref fields) => { let mut stmts = vec![]; - if fields.is_empty() || fields[0].name.is_none() { + if !is_struct { // tuple struct/"normal" variant let expr = cx.expr_method_call(span, fmt, |