let tcx = pcx.fcx.ccx.tcx;
let def = tcx.def_map.borrow()[pat.id].clone();
- let def_type = ty::lookup_item_type(tcx, def.def_id());
- let (enum_def_id, variant_def_id) = match ty::get(def_type.ty).sty {
- ty::ty_struct(struct_def_id, _) =>
- (struct_def_id, struct_def_id),
- ty::ty_enum(enum_def_id, _) if def == def::DefVariant(enum_def_id, def.def_id(), true) =>
- (enum_def_id, def.def_id()),
- _ => {
+ let (enum_def_id, variant_def_id) = match def {
+ def::DefTrait(_) => {
let name = pprust::path_to_string(path);
- span_err!(tcx.sess, pat.span, E0163,
- "`{}` does not name a struct or a struct variant", name);
+ span_err!(tcx.sess, pat.span, E0168,
+ "use of trait `{}` in a struct pattern", name);
fcx.write_error(pat.id);
for field in fields.iter() {
check_pat(pcx, &*field.node.pat, ty::mk_err());
}
return;
+ },
+ _ => {
+ let def_type = ty::lookup_item_type(tcx, def.def_id());
+ match ty::get(def_type.ty).sty {
+ ty::ty_struct(struct_def_id, _) =>
+ (struct_def_id, struct_def_id),
+ ty::ty_enum(enum_def_id, _)
+ if def == def::DefVariant(enum_def_id, def.def_id(), true) =>
+ (enum_def_id, def.def_id()),
+ _ => {
+ let name = pprust::path_to_string(path);
+ span_err!(tcx.sess, pat.span, E0163,
+ "`{}` does not name a struct or a struct variant", name);
+ fcx.write_error(pat.id);
+
+ for field in fields.iter() {
+ check_pat(pcx, &*field.node.pat, ty::mk_err());
+ }
+ return;
+ }
+ }
}
};
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// aux-build:use_from_trait_xc.rs
+
+extern crate use_from_trait_xc;
+pub use use_from_trait_xc::Trait;
+
+fn main() {
+ match () {
+ Trait { x: 42u } => () //~ ERROR use of trait `Trait` in a struct pattern
+ }
+}