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Don't try to compute kinds of fictitious types. Indicate a bug instead.

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This commit is contained in:
Michael Sullivan 2012-06-01 17:58:40 -07:00
parent 2ab1b5838b
commit 8f7364b26d
1 changed files with 4 additions and 7 deletions
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11
src/rustc/middle/ty.rs
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@ -1434,14 +1434,8 @@ fn type_kind(cx: ctxt, ty: t) -> kind {
ty_ptr(_) { kind_implicitly_sendable() | kind_const() }
// FIXME: this *shouldn't* be implicitly copyable (#2450)
ty_str { kind_implicitly_sendable() | kind_const() }
ty_type { kind_copyable() }
ty_fn(f) { proto_kind(f.proto) }
// Closures have kind determined by capture mode
ty_opaque_closure_ptr(ck_block) { kind_noncopyable() }
ty_opaque_closure_ptr(ck_box) { kind_implicitly_copyable() }
ty_opaque_closure_ptr(ck_uniq) { kind_sendable() }
// Those with refcounts raise noncopyable to copyable,
// lower sendable to copyable. Therefore just set result to copyable.
ty_box(tm) {
@ -1456,7 +1450,7 @@ fn type_kind(cx: ctxt, ty: t) -> kind {
else { kind_implicitly_copyable() }
}
}
ty_iface(_, _) | ty_opaque_box { kind_implicitly_copyable() }
ty_iface(_, _) { kind_implicitly_copyable() }
ty_rptr(_, _) { kind_implicitly_copyable() }
// Unique boxes and vecs have the kind of their contained type,
@ -1548,6 +1542,9 @@ fn type_kind(cx: ctxt, ty: t) -> kind {
ty_self { kind_noncopyable() }
ty_var(_) { cx.sess.bug("Asked to compute kind of a type variable"); }
ty_type | ty_opaque_closure_ptr(_) | ty_opaque_box {
cx.sess.bug("Asked to compute kind of fictitious type");
}
};
cx.kind_cache.insert(ty, result);