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Remove `HAS_NORMALIZABLE_PROJECTION`

This commit is contained in:
Matthew Jasper 2019-07-07 16:41:51 +01:00
parent 6b152f83c7
commit 165e460c92
2 changed files with 8 additions and 17 deletions
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9
src/librustc/ty/flags.rs
View File

@ -1,5 +1,5 @@
use crate::ty::subst::{SubstsRef, UnpackedKind};
use crate::ty::{self, Ty, TypeFlags, TypeFoldable, InferConst};
use crate::ty::{self, Ty, TypeFlags, InferConst};
use crate::mir::interpret::ConstValue;
#[derive(Debug)]
@ -139,11 +139,6 @@ impl FlagComputation {
}
&ty::Projection(ref data) => {
// currently we can't normalize projections that
// include bound regions, so track those separately.
if !data.has_escaping_bound_vars() {
self.add_flags(TypeFlags::HAS_NORMALIZABLE_PROJECTION);
}
self.add_flags(TypeFlags::HAS_PROJECTION);
self.add_projection_ty(data);
}
@ -239,7 +234,7 @@ impl FlagComputation {
match c.val {
ConstValue::Unevaluated(_, substs) => {
self.add_substs(substs);
self.add_flags(TypeFlags::HAS_NORMALIZABLE_PROJECTION | TypeFlags::HAS_PROJECTION);
self.add_flags(TypeFlags::HAS_PROJECTION);
},
ConstValue::Infer(infer) => {
self.add_flags(TypeFlags::HAS_FREE_LOCAL_NAMES | TypeFlags::HAS_CT_INFER);

16
src/librustc/ty/mod.rs
View File

@ -441,20 +441,16 @@ bitflags! {
/// Present if the type belongs in a local type context.
/// Only set for Infer other than Fresh.
const KEEP_IN_LOCAL_TCX = 1 << 11;
// Is there a projection that does not involve a bound region?
// Currently we can't normalize projections w/ bound regions.
const HAS_NORMALIZABLE_PROJECTION = 1 << 12;
const KEEP_IN_LOCAL_TCX = 1 << 10;
/// Does this have any `ReLateBound` regions? Used to check
/// if a global bound is safe to evaluate.
const HAS_RE_LATE_BOUND = 1 << 13;
const HAS_RE_LATE_BOUND = 1 << 11;
const HAS_TY_PLACEHOLDER = 1 << 14;
const HAS_TY_PLACEHOLDER = 1 << 12;
const HAS_CT_INFER = 1 << 15;
const HAS_CT_PLACEHOLDER = 1 << 16;
const HAS_CT_INFER = 1 << 13;
const HAS_CT_PLACEHOLDER = 1 << 14;
const NEEDS_SUBST = TypeFlags::HAS_PARAMS.bits |
TypeFlags::HAS_RE_EARLY_BOUND.bits;
@ -465,7 +461,6 @@ bitflags! {
const NOMINAL_FLAGS = TypeFlags::HAS_PARAMS.bits |
TypeFlags::HAS_TY_INFER.bits |
TypeFlags::HAS_RE_INFER.bits |
TypeFlags::HAS_CT_INFER.bits |
TypeFlags::HAS_RE_PLACEHOLDER.bits |
TypeFlags::HAS_RE_EARLY_BOUND.bits |
TypeFlags::HAS_FREE_REGIONS.bits |
@ -476,6 +471,7 @@ bitflags! {
TypeFlags::KEEP_IN_LOCAL_TCX.bits |
TypeFlags::HAS_RE_LATE_BOUND.bits |
TypeFlags::HAS_TY_PLACEHOLDER.bits |
TypeFlags::HAS_CT_INFER.bits |
TypeFlags::HAS_CT_PLACEHOLDER.bits;
}
}