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// Copyright (C) 2020-2025 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_AST_DUMP_H
#define RUST_AST_DUMP_H
#include "rust-ast-visitor.h"
#include "rust-ast.h"
#include "rust-ast-full.h"
#include "rust-dump.h"
#include "rust-ast-collector.h"
namespace Rust {
namespace AST {
class Dump
{
public:
Dump (std::ostream &stream);
/**
* Run the visitor on an entire crate and its items
*/
void go (AST::Crate &crate);
void go (AST::Item &item);
template <typename T> void process (T &v)
{
TokenCollector collector;
collector.visit (v);
TokenPtr previous = nullptr;
for (auto item : collector.collect ())
{
switch (item.get_kind ())
{
case AST::CollectItem::Kind::Token: {
TokenPtr current = item.get_token ();
if (require_spacing (previous, current))
stream << " ";
stream << current->as_string ();
previous = current;
}
break;
case AST::CollectItem::Kind::Comment:
stream << " /* " << item.get_comment () << " */ ";
break;
case AST::CollectItem::Kind::Indentation:
for (size_t i = 0; i < item.get_indent_level (); i++)
{
stream << " ";
}
break;
case AST::CollectItem::Kind::Newline:
stream << "\n";
previous = nullptr;
break;
default:
rust_unreachable ();
}
}
}
// Helper method to get a quick debug dump to standard error output
static void debug (Visitable &v);
private:
std::ostream &stream;
Indent indentation;
static bool require_spacing (TokenPtr previous, TokenPtr current);
};
} // namespace AST
} // namespace Rust
// In the global namespace to make it easier to call from debugger
void
debug (Rust::AST::Visitable &v);
#endif // !RUST_AST_DUMP_H
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