// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SRC_AST_STRUCT_H_
#define SRC_AST_STRUCT_H_

#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include <vector>

#include "src/ast/node.h"
#include "src/ast/struct_decoration.h"
#include "src/ast/struct_member.h"

namespace tint {
namespace ast {

/// A struct statement.
class Struct : public Node {
 public:
  /// Create a new empty struct statement
  Struct() = default;
  /// Create a new struct statement
  /// @param decoration The struct decorations
  /// @param members The struct members
  Struct(StructDecoration decoration,
         std::vector<std::unique_ptr<StructMember>> members);
  /// Create a new struct statement
  /// @param source The input source for the import statement
  /// @param decoration The struct decorations
  /// @param members The struct members
  Struct(const Source& source,
         StructDecoration decoration,
         std::vector<std::unique_ptr<StructMember>> members);
  /// Move constructor
  Struct(Struct&&) = default;

  ~Struct() override;

  /// Sets the struct decoration
  /// @param deco the decoration to set
  void set_decoration(StructDecoration deco) { decoration_ = deco; }
  /// @returns the struct decoration
  StructDecoration decoration() const { return decoration_; }

  /// Sets the struct members
  /// @param members the members to set
  void set_members(std::vector<std::unique_ptr<StructMember>> members) {
    members_ = std::move(members);
  }
  /// @returns the members
  const std::vector<std::unique_ptr<StructMember>>& members() const {
    return members_;
  }

  /// @returns true if the node is valid
  bool IsValid() const override;

  /// Writes a representation of the node to the output stream
  /// @param out the stream to write to
  /// @param indent number of spaces to indent the node when writing
  void to_str(std::ostream& out, size_t indent) const override;

 private:
  Struct(const Struct&) = delete;

  StructDecoration decoration_ = StructDecoration::kNone;
  std::vector<std::unique_ptr<StructMember>> members_;
};

}  // namespace ast
}  // namespace tint

#endif  // SRC_AST_STRUCT_H_