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// Copyright (C) 2024 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/>.
#ifndef RUST_COLLECT_LANG_ITEMS_H
#define RUST_COLLECT_LANG_ITEMS_H
#include "rust-ast-visitor.h"
#include "rust-ast.h"
#include "rust-hir-map.h"
#include "rust-item.h"
namespace Rust {
namespace AST {
// This class collects lang items ahead of lowering, as they are now needed for
// some parts of name resolution
class CollectLangItems : public DefaultASTVisitor
{
public:
CollectLangItems () : mappings (Analysis::Mappings::get ()){};
void go (AST::Crate &crate) { DefaultASTVisitor::visit (crate); }
Analysis::Mappings &mappings;
// We must implement visitors for all constructs that could be lang items.
// Lang items can be traits, but also enums, and even enum variants.
//
// https://github.com/rust-lang/rust/blob/master/compiler/rustc_hir/src/lang_items.rs
using DefaultASTVisitor::visit;
void visit (AST::Trait &item) override;
void visit (AST::TraitItemType &item) override;
void visit (AST::Function &item) override;
void visit (AST::StructStruct &item) override;
private:
template <typename T> void maybe_add_lang_item (const T &item);
};
} // namespace AST
} // namespace Rust
#endif // ! RUST_COLLECT_LANG_ITEMS_H
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