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Fix resolution of inherent array methods.

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This commit is contained in:
Yotam Ofek 2021-09-08 11:13:29 +03:00
parent 1785493cae
commit 9593fe684d
1 changed files with 36 additions and 2 deletions
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38
crates/hir_ty/src/method_resolution.rs
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@ -16,6 +16,7 @@ use rustc_hash::{FxHashMap, FxHashSet};
use crate::{
autoderef,
consteval::{self, ConstExt},
db::HirDatabase,
from_foreign_def_id,
primitive::{self, FloatTy, IntTy, UintTy},
@ -725,7 +726,27 @@ fn iterate_inherent_methods(
for krate in def_crates {
let impls = db.inherent_impls_in_crate(krate);
for &impl_def in impls.for_self_ty(&self_ty.value) {
let impls_for_self_ty = impls.for_self_ty(&self_ty.value).iter().chain(
{
if let TyKind::Array(parameters, array_len) = self_ty.value.kind(&Interner) {
if !array_len.is_unknown() {
let unknown_array_len_ty =
TyKind::Array(parameters.clone(), consteval::usize_const(None))
.intern(&Interner);
Some(impls.for_self_ty(&unknown_array_len_ty))
} else {
None
}
} else {
None
}
}
.into_iter()
.flatten(),
);
for &impl_def in impls_for_self_ty {
for &item in db.impl_data(impl_def).items.iter() {
if !is_valid_candidate(
db,
@ -803,7 +824,20 @@ fn is_valid_candidate(
None => return false,
};
if transformed_receiver_ty != receiver_ty.value {
return false;
match (
transformed_receiver_ty.kind(&Interner),
receiver_ty.value.kind(&Interner),
) {
(
TyKind::Array(transformed_array_ty, transformed_array_len),
TyKind::Array(receiver_array_ty, receiver_array_len),
) if transformed_array_ty == receiver_array_ty
&& transformed_array_len.is_unknown()
&& !receiver_array_len.is_unknown() => {}
_ => {
return false;
}
}
}
}
if let Some(from_module) = visible_from_module {