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fixes #6069

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Peter 2015-05-15 16:27:07 -04:00
parent f554ab1c4d
commit 717b443eec
5 changed files with 17 additions and 13 deletions
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8
components/plugins/lints/unrooted_must_root.rs
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@ -2,7 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use syntax::{ast, codemap, visit};
use syntax::{ast, codemap, visit, ast_map};
use syntax::attr::AttrMetaMethods;
use rustc::lint::{Context, LintPass, LintArray};
use rustc::middle::ty::expr_ty;
@ -52,7 +52,11 @@ impl LintPass for UnrootedPass {
}
/// All structs containing #[must_root] types must be #[must_root] themselves
fn check_struct_def(&mut self, cx: &Context, def: &ast::StructDef, _i: ast::Ident, _gen: &ast::Generics, id: ast::NodeId) {
if cx.tcx.map.expect_item(id).attrs.iter().all(|a| !a.check_name("must_root")) {
let item = match cx.tcx.map.get(id) {
ast_map::Node::NodeItem(item) => item,
_ => cx.tcx.map.expect_item(cx.tcx.map.get_parent(id)),
};
if item.attrs.iter().all(|a| !a.check_name("must_root")) {
for ref field in def.fields.iter() {
lint_unrooted_ty(cx, &*field.node.ty,
"Type must be rooted, use #[must_root] on the struct definition to propagate");