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DO NOT COMMIT

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This commit is contained in:
Brian Anderson 2013-01-31 17:52:42 -08:00
parent 63c16e9e79
commit 76679c1f91
2 changed files with 23 additions and 1 deletions
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21
src/librustc/middle/trans/glue.rs
View File

@ -571,9 +571,30 @@ pub fn decr_refcnt_maybe_free(bcx: block,
}
}
pub fn copy_glue_should_never_be_called(bcx: block, t: ty::t) -> bool {
match ty::get(t).sty {
ty::ty_infer(*)
| ty::ty_type
| ty::ty_opaque_closure_ptr(*)
| ty::ty_opaque_box
| ty::ty_unboxed_vec(*)
| ty::ty_err => {
// Not sure under what scenarios these non-types get take glue
false
}
_ => !ty::type_is_copyable(bcx.tcx(), t)
}
}
pub fn make_take_glue(bcx: block, v: ValueRef, t: ty::t) {
let _icx = bcx.insn_ctxt("make_take_glue");
if copy_glue_should_never_be_called(bcx, t) {
controlflow::trans_fail(bcx, bcx.fcx.span,
~"calling take glue on non-copyable");
return;
}
// NB: v is a *pointer* to type t here, not a direct value.
let bcx = match ty::get(t).sty {
ty::ty_box(_) | ty::ty_opaque_box |

3
src/librustc/middle/ty.rs
View File

@ -2181,7 +2181,8 @@ pub fn type_kind_ext(cx: ctxt, ty: t, allow_ty_var: bool) -> Kind {
ty_type | ty_opaque_closure_ptr(_)
| ty_opaque_box | ty_unboxed_vec(_) | ty_err => {
cx.sess.bug(~"Asked to compute kind of fictitious type");
kind_copyable()
//cx.sess.bug(~"Asked to compute kind of fictitious type");
}
};