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Fix ICE when a struct variant enum is imported from an external crate

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Fixes the first case of #19340.
This commit is contained in:
Barosl Lee 2014-12-05 23:30:25 +09:00
parent cf0b4e0682
commit 418d1bfc9a
3 changed files with 51 additions and 7 deletions
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22
src/librustc/metadata/decoder.rs
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@ -681,14 +681,22 @@ pub fn get_enum_variants<'tcx>(intr: Rc<IdentInterner>, cdata: Cmd, id: ast::Nod
let ctor_ty = item_type(ast::DefId { krate: cdata.cnum, node: id},
item, tcx, cdata);
let name = item_name(&*intr, item);
let (ctor_ty, arg_tys) = match ctor_ty.sty {
let (ctor_ty, arg_tys, arg_names) = match ctor_ty.sty {
ty::ty_bare_fn(ref f) =>
(Some(ctor_ty), f.sig.inputs.clone()),
_ => // Nullary or struct enum variant.
(None, get_struct_fields(intr.clone(), cdata, did.node)
(Some(ctor_ty), f.sig.inputs.clone(), None),
_ => { // Nullary or struct enum variant.
let mut arg_names = Vec::new();
let arg_tys = get_struct_fields(intr.clone(), cdata, did.node)
.iter()
.map(|field_ty| get_type(cdata, field_ty.id.node, tcx).ty)
.collect())
.map(|field_ty| {
arg_names.push(ast::Ident::new(field_ty.name));
get_type(cdata, field_ty.id.node, tcx).ty
})
.collect();
let arg_names = if arg_names.len() == 0 { None } else { Some(arg_names) };
(None, arg_tys, arg_names)
}
};
match variant_disr_val(item) {
Some(val) => { disr_val = val; }
@ -698,7 +706,7 @@ pub fn get_enum_variants<'tcx>(intr: Rc<IdentInterner>, cdata: Cmd, id: ast::Nod
disr_val += 1;
Rc::new(ty::VariantInfo {
args: arg_tys,
arg_names: None,
arg_names: arg_names,
ctor_ty: ctor_ty,
name: name,
// I'm not even sure if we encode visibility

13
src/test/auxiliary/issue-19340-1.rs Normal file
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@ -0,0 +1,13 @@
// 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.
pub enum Homura {
Madoka { name: String },
}

23
src/test/run-pass/issue-19340-1.rs Normal file
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@ -0,0 +1,23 @@
// 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:issue-19340-1.rs
extern crate "issue-19340-1" as lib;
use lib::Homura;
fn main() {
let homura = Homura::Madoka { name: "Kaname".into_string() };
match homura {
Homura::Madoka { name } => (),
};
}