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authorPierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>2024-05-02 11:43:02 +0200
committerArthur Cohen <arthur.cohen@embecosm.com>2025-03-17 16:35:24 +0100
commitfa6c5c08a131d108a6a9f927b5154d2db81a84ba (patch)
treeb1360b5d87428134b6429cc09e9b9e9ff799e36a /gcc
parent1d6389b2916e9e285d16ab1d3cb8b7d6650d7cd6 (diff)
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gccrs: Change lookup_local_defid return type to optional
Make the API more convenient by changing the function's return type. We can now differentiate between a stored null pointer and a missing value. gcc/rust/ChangeLog: * util/rust-hir-map.cc (Mappings::insert_defid_mapping): Adapt call to new return type. (Mappings::insert_local_defid_mapping): Likewise. (Mappings::lookup_local_defid): Change return type to wrap it with an optional. * util/rust-hir-map.h: Update the function's prototype. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Diffstat (limited to 'gcc')
-rw-r--r--gcc/rust/util/rust-hir-map.cc12
-rw-r--r--gcc/rust/util/rust-hir-map.h3
2 files changed, 8 insertions, 7 deletions
diff --git a/gcc/rust/util/rust-hir-map.cc b/gcc/rust/util/rust-hir-map.cc
index 899f71b..dcedea9 100644
--- a/gcc/rust/util/rust-hir-map.cc
+++ b/gcc/rust/util/rust-hir-map.cc
@@ -313,7 +313,7 @@ Mappings::insert_defid_mapping (DefId id, HIR::Item *item)
LocalDefId local_def_id = id.localDefId;
rust_assert (!lookup_defid (id));
- rust_assert (lookup_local_defid (crate_num, local_def_id) == nullptr);
+ rust_assert (!lookup_local_defid (crate_num, local_def_id));
rust_assert (lookup_trait_item_defid (id) == nullptr);
defIdMappings[id] = item;
@@ -337,7 +337,7 @@ Mappings::insert_defid_mapping (DefId id, HIR::TraitItem *item)
LocalDefId local_def_id = id.localDefId;
rust_assert (!lookup_defid (id));
- rust_assert (lookup_local_defid (crate_num, local_def_id) == nullptr);
+ rust_assert (!lookup_local_defid (crate_num, local_def_id));
rust_assert (lookup_trait_item_defid (id) == nullptr);
defIdTraitItemMappings[id] = item;
@@ -718,20 +718,20 @@ void
Mappings::insert_local_defid_mapping (CrateNum crateNum, LocalDefId id,
HIR::Item *item)
{
- rust_assert (lookup_local_defid (crateNum, id) == nullptr);
+ rust_assert (!lookup_local_defid (crateNum, id));
localDefIdMappings[crateNum][id] = item;
}
-HIR::Item *
+tl::optional<HIR::Item *>
Mappings::lookup_local_defid (CrateNum crateNum, LocalDefId id)
{
auto it = localDefIdMappings.find (crateNum);
if (it == localDefIdMappings.end ())
- return nullptr;
+ return tl::nullopt;
auto iy = it->second.find (id);
if (iy == it->second.end ())
- return nullptr;
+ return tl::nullopt;
return iy->second;
}
diff --git a/gcc/rust/util/rust-hir-map.h b/gcc/rust/util/rust-hir-map.h
index 8a927c9..b4c39a9 100644
--- a/gcc/rust/util/rust-hir-map.h
+++ b/gcc/rust/util/rust-hir-map.h
@@ -112,7 +112,8 @@ public:
void insert_local_defid_mapping (CrateNum crateNum, LocalDefId id,
HIR::Item *item);
- HIR::Item *lookup_local_defid (CrateNum crateNum, LocalDefId id);
+ tl::optional<HIR::Item *> lookup_local_defid (CrateNum crateNum,
+ LocalDefId id);
void insert_hir_item (HIR::Item *item);
tl::optional<HIR::Item *> lookup_hir_item (HirId id);