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// Copyright (C) 2020-2022 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include "rust-type-util.h"
#include "rust-diagnostics.h"
#include "rust-hir-type-check.h"
#include "rust-name-resolver.h"
#include "rust-hir-visitor.h"
#include "rust-hir-map.h"
#include "rust-hir-type-check-item.h"
#include "rust-hir-type-check-implitem.h"
namespace Rust {
namespace Resolver {
bool
query_type (HirId reference, TyTy::BaseType **result)
{
Analysis::Mappings *mappings = Analysis::Mappings::get ();
TypeCheckContext *context = TypeCheckContext::get ();
if (context->query_in_progress (reference))
return false;
if (context->lookup_type (reference, result))
return true;
context->insert_query (reference);
HIR::Item *item = mappings->lookup_hir_item (reference);
if (item != nullptr)
{
rust_debug_loc (item->get_locus (), "resolved item {%u} to", reference);
*result = TypeCheckItem::Resolve (*item);
context->query_completed (reference);
return true;
}
HirId parent_impl_id = UNKNOWN_HIRID;
HIR::ImplItem *impl_item
= mappings->lookup_hir_implitem (reference, &parent_impl_id);
if (impl_item != nullptr)
{
HIR::ImplBlock *impl_block
= mappings->lookup_hir_impl_block (parent_impl_id);
rust_assert (impl_block != nullptr);
// found an impl item
rust_debug_loc (impl_item->get_locus (), "resolved impl-item {%u} to",
reference);
*result = TypeCheckItem::ResolveImplItem (*impl_block, *impl_item);
context->query_completed (reference);
return true;
}
// is it an impl_type?
HIR::ImplBlock *impl_block_by_type = nullptr;
bool found_impl_block_type
= mappings->lookup_impl_block_type (reference, &impl_block_by_type);
if (found_impl_block_type)
{
*result = TypeCheckItem::ResolveImplBlockSelf (*impl_block_by_type);
context->query_completed (reference);
return true;
}
// is it an extern item?
HirId parent_extern_block_id = UNKNOWN_HIRID;
HIR::ExternalItem *extern_item
= mappings->lookup_hir_extern_item (reference, &parent_extern_block_id);
if (extern_item != nullptr)
{
HIR::ExternBlock *block
= mappings->lookup_hir_extern_block (parent_extern_block_id);
rust_assert (block != nullptr);
*result = TypeCheckTopLevelExternItem::Resolve (extern_item, *block);
context->query_completed (reference);
return true;
}
// more?
Location possible_locus = mappings->lookup_location (reference);
rust_debug_loc (possible_locus, "query system failed to resolve: [%u]",
reference);
context->query_completed (reference);
return false;
}
} // namespace Resolver
} // namespace Rust
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