diff options
Diffstat (limited to 'src/libsyntax/parse')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index 50e3483fb15..44b7cc8d181 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -5175,7 +5175,15 @@ impl<'a> Parser<'a> { if self.eat(&token::OpenDelim(token::Brace)) { // Parse a struct variant. all_nullary = false; - kind = StructVariantKind(self.parse_struct_def()); + let start_span = self.span; + let struct_def = self.parse_struct_def(); + if struct_def.fields.len() == 0 { + self.span_err(start_span, + format!("unit-like struct variant should be written \ + without braces, as `{},`", + token::get_ident(ident)).as_slice()); + } + kind = StructVariantKind(struct_def); } else if self.token == token::OpenDelim(token::Paren) { all_nullary = false; let arg_tys = self.parse_enum_variant_seq( |
