From: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
Change the return type to an optional.
gcc/rust/ChangeLog:
* backend/rust-compile-base.cc (HIRCompileBase::resolve_method_address):
Change calling code to accomodate new return type.
* checks/errors/privacy/rust-privacy-reporter.cc:
Likewise.
* typecheck/rust-hir-type-check-base.cc
(TypeCheckBase::get_marker_predicate):
Likewise.
* typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit):
Likewise.
* typecheck/rust-tyty-bounds.cc
(TypeBoundsProbe::assemble_builtin_candidate):
Likewise.
* typecheck/rust-tyty.cc (ClosureType::setup_fn_once_output): Likewise.
* util/rust-hir-map.cc (Mappings::lookup_defid): Change function's
return type.
* util/rust-hir-map.h: Update function's prototype.
Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
---
gcc/rust/backend/rust-compile-base.cc | 7 +++----
.../errors/privacy/rust-privacy-reporter.cc | 3 +--
gcc/rust/typecheck/rust-hir-type-check-base.cc | 3 +--
gcc/rust/typecheck/rust-hir-type-check-expr.cc | 17 ++++++-----------
gcc/rust/typecheck/rust-tyty-bounds.cc | 5 +++--
gcc/rust/typecheck/rust-tyty.cc | 2 +-
gcc/rust/util/rust-hir-map.cc | 8 ++++----
gcc/rust/util/rust-hir-map.h | 2 +-
8 files changed, 20 insertions(+), 27 deletions(-)
diff --git a/gcc/rust/backend/rust-compile-base.cc
b/gcc/rust/backend/rust-compile-base.cc
index 64ac121a28f..c7031edd30b 100644
--- a/gcc/rust/backend/rust-compile-base.cc
+++ b/gcc/rust/backend/rust-compile-base.cc
@@ -877,13 +877,12 @@ HIRCompileBase::resolve_method_address (TyTy::FnType
*fntype,
// Now we can try and resolve the address since this might be a forward
// declared function, generic function which has not be compiled yet or
// its an not yet trait bound function
- HIR::Item *resolved_item = ctx->get_mappings ().lookup_defid (id);
- if (resolved_item != nullptr)
+ if (auto resolved_item = ctx->get_mappings ().lookup_defid (id))
{
if (!fntype->has_substitutions_defined ())
- return CompileItem::compile (resolved_item, ctx);
+ return CompileItem::compile (*resolved_item, ctx);
- return CompileItem::compile (resolved_item, ctx, fntype);
+ return CompileItem::compile (*resolved_item, ctx, fntype);
}
// it might be resolved to a trait item
diff --git a/gcc/rust/checks/errors/privacy/rust-privacy-reporter.cc
b/gcc/rust/checks/errors/privacy/rust-privacy-reporter.cc
index 3a304e881d5..f8df9f795ef 100644
--- a/gcc/rust/checks/errors/privacy/rust-privacy-reporter.cc
+++ b/gcc/rust/checks/errors/privacy/rust-privacy-reporter.cc
@@ -146,8 +146,7 @@ PrivacyReporter::check_for_privacy_violation (const NodeId
&use_id,
if (!current_module.has_value ())
return;
- auto module = mappings.lookup_defid (vis.get_module_id ());
- rust_assert (module != nullptr);
+ auto module = mappings.lookup_defid (vis.get_module_id ()).value ();
auto mod_node_id = module->get_mappings ().get_nodeid ();
diff --git a/gcc/rust/typecheck/rust-hir-type-check-base.cc
b/gcc/rust/typecheck/rust-hir-type-check-base.cc
index 7e57698a068..7e34cef26c5 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-base.cc
+++ b/gcc/rust/typecheck/rust-hir-type-check-base.cc
@@ -414,8 +414,7 @@ TyTy::TypeBoundPredicate
TypeCheckBase::get_marker_predicate (LangItem::Kind item_type, location_t
locus)
{
DefId item_id = mappings.get_lang_item (item_type, locus);
- HIR::Item *item = mappings.lookup_defid (item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (item_id).value ();
rust_assert (item->get_item_kind () == HIR::Item::ItemKind::Trait);
HIR::Trait &trait = *static_cast<HIR::Trait *> (item);
diff --git a/gcc/rust/typecheck/rust-hir-type-check-expr.cc
b/gcc/rust/typecheck/rust-hir-type-check-expr.cc
index 25eb628c7b7..95e421d8720 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-expr.cc
+++ b/gcc/rust/typecheck/rust-hir-type-check-expr.cc
@@ -642,8 +642,7 @@ TypeCheckExpr::visit (HIR::RangeFromToExpr &expr)
}
// look it up and it _must_ be a struct definition
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
TyTy::BaseType *item_type = nullptr;
bool ok
@@ -697,8 +696,7 @@ TypeCheckExpr::visit (HIR::RangeFromExpr &expr)
}
// look it up and it _must_ be a struct definition
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
TyTy::BaseType *item_type = nullptr;
bool ok
@@ -745,8 +743,7 @@ TypeCheckExpr::visit (HIR::RangeToExpr &expr)
}
// look it up and it _must_ be a struct definition
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
TyTy::BaseType *item_type = nullptr;
bool ok
@@ -792,8 +789,7 @@ TypeCheckExpr::visit (HIR::RangeFullExpr &expr)
}
// look it up and it _must_ be a struct definition
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
TyTy::BaseType *item_type = nullptr;
bool ok
@@ -823,8 +819,7 @@ TypeCheckExpr::visit (HIR::RangeFromToInclExpr &expr)
}
// look it up and it _must_ be a struct definition
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
- rust_assert (item != nullptr);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
TyTy::BaseType *item_type = nullptr;
bool ok
@@ -1599,7 +1594,7 @@ TypeCheckExpr::visit (HIR::ClosureExpr &expr)
rust_assert (lang_item_defined);
// these lang items are always traits
- HIR::Item *item = mappings.lookup_defid (respective_lang_item_id);
+ HIR::Item *item = mappings.lookup_defid (respective_lang_item_id).value ();
rust_assert (item->get_item_kind () == HIR::Item::ItemKind::Trait);
HIR::Trait *trait_item = static_cast<HIR::Trait *> (item);
diff --git a/gcc/rust/typecheck/rust-tyty-bounds.cc
b/gcc/rust/typecheck/rust-tyty-bounds.cc
index 6ef8299a974..a18a0e40ddf 100644
--- a/gcc/rust/typecheck/rust-tyty-bounds.cc
+++ b/gcc/rust/typecheck/rust-tyty-bounds.cc
@@ -157,9 +157,10 @@ TypeBoundsProbe::assemble_builtin_candidate
(LangItem::Kind lang_item)
if (!found_lang_item)
return;
- HIR::Item *item = mappings.lookup_defid (id);
- if (item == nullptr)
+ auto defid = mappings.lookup_defid (id);
+ if (!defid)
return;
+ auto item = defid.value ();
rust_assert (item->get_item_kind () == HIR::Item::ItemKind::Trait);
HIR::Trait *trait = static_cast<HIR::Trait *> (item);
diff --git a/gcc/rust/typecheck/rust-tyty.cc b/gcc/rust/typecheck/rust-tyty.cc
index c7a6e220053..2e9a551e4c7 100644
--- a/gcc/rust/typecheck/rust-tyty.cc
+++ b/gcc/rust/typecheck/rust-tyty.cc
@@ -2229,7 +2229,7 @@ ClosureType::setup_fn_once_output () const
rust_assert (trait_item_lang_item_defined);
// resolve to the trait
- HIR::Item *item = mappings.lookup_defid (trait_id);
+ HIR::Item *item = mappings.lookup_defid (trait_id).value ();
rust_assert (item->get_item_kind () == HIR::Item::ItemKind::Trait);
HIR::Trait *trait = static_cast<HIR::Trait *> (item);
diff --git a/gcc/rust/util/rust-hir-map.cc b/gcc/rust/util/rust-hir-map.cc
index cb4e95ae8f0..899f71be49d 100644
--- a/gcc/rust/util/rust-hir-map.cc
+++ b/gcc/rust/util/rust-hir-map.cc
@@ -312,7 +312,7 @@ Mappings::insert_defid_mapping (DefId id, HIR::Item *item)
CrateNum crate_num = id.crateNum;
LocalDefId local_def_id = id.localDefId;
- rust_assert (lookup_defid (id) == nullptr);
+ rust_assert (!lookup_defid (id));
rust_assert (lookup_local_defid (crate_num, local_def_id) == nullptr);
rust_assert (lookup_trait_item_defid (id) == nullptr);
@@ -320,12 +320,12 @@ Mappings::insert_defid_mapping (DefId id, HIR::Item *item)
insert_local_defid_mapping (crate_num, local_def_id, item);
}
-HIR::Item *
+tl::optional<HIR::Item *>
Mappings::lookup_defid (DefId id)
{
auto it = defIdMappings.find (id);
if (it == defIdMappings.end ())
- return nullptr;
+ return tl::nullopt;
return it->second;
}
@@ -336,7 +336,7 @@ Mappings::insert_defid_mapping (DefId id, HIR::TraitItem
*item)
CrateNum crate_num = id.crateNum;
LocalDefId local_def_id = id.localDefId;
- rust_assert (lookup_defid (id) == nullptr);
+ rust_assert (!lookup_defid (id));
rust_assert (lookup_local_defid (crate_num, local_def_id) == nullptr);
rust_assert (lookup_trait_item_defid (id) == nullptr);
diff --git a/gcc/rust/util/rust-hir-map.h b/gcc/rust/util/rust-hir-map.h
index 4ac719ffea7..8a927c9ad4f 100644
--- a/gcc/rust/util/rust-hir-map.h
+++ b/gcc/rust/util/rust-hir-map.h
@@ -106,7 +106,7 @@ public:
bool is_local_hirid_crate (HirId crateNum);
void insert_defid_mapping (DefId id, HIR::Item *item);
- HIR::Item *lookup_defid (DefId id);
+ tl::optional<HIR::Item *> lookup_defid (DefId id);
void insert_defid_mapping (DefId id, HIR::TraitItem *item);
HIR::TraitItem *lookup_trait_item_defid (DefId id);
--
2.45.2
