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librustc: Restrict transmute intrinsicck to just rust-intrinsic fn's.

This commit is contained in:
Luqman Aden 2014-08-25 11:45:19 -07:00
parent 5fb2dfaa20
commit 6ad0346f0b
1 changed files with 7 additions and 3 deletions
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10
src/librustc/middle/intrinsicck.rs
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@ -73,9 +73,13 @@ struct IntrinsicCheckingVisitor<'a> {
impl<'a> IntrinsicCheckingVisitor<'a> {
fn def_id_is_transmute(&self, def_id: DefId) -> bool {
let intrinsic = match ty::get(ty::lookup_item_type(self.tcx, def_id).ty).sty {
ty::ty_bare_fn(ref bfty) => bfty.abi == RustIntrinsic,
_ => return false
};
if def_id.krate == ast::LOCAL_CRATE {
match self.tcx.map.get(def_id.node) {
NodeForeignItem(ref item) => {
NodeForeignItem(ref item) if intrinsic => {
token::get_ident(item.ident) ==
token::intern_and_get_ident("transmute")
}
@ -83,11 +87,11 @@ impl<'a> IntrinsicCheckingVisitor<'a> {
}
} else {
match csearch::get_item_path(self.tcx, def_id).last() {
None => false,
Some(ref last) => {
Some(ref last) if intrinsic => {
token::get_name(last.name()) ==
token::intern_and_get_ident("transmute")
}
_ => false,
}
}
}