// 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_TYPE_MATRIX_TYPE_H_
#define SRC_AST_TYPE_MATRIX_TYPE_H_

#include <string>

#include "src/ast/type/type.h"

namespace tint {
namespace ast {
namespace type {

/// A matrix type
class MatrixType : public Type {
 public:
  /// Constructor
  /// @param subtype type matrix type
  /// @param rows the number of rows in the matrix
  /// @param columns the number of columns in the matrix
  MatrixType(Type* subtype, uint32_t rows, uint32_t columns);
  /// Move constructor
  MatrixType(MatrixType&&) = default;
  ~MatrixType() override;

  /// @returns true if the type is a matrix type
  bool IsMatrix() const override { return true; }

  /// @returns the type of the matrix
  Type* type() const { return subtype_; }
  /// @returns the number of rows in the matrix
  uint32_t rows() const { return rows_; }
  /// @returns the number of columns in the matrix
  uint32_t columns() const { return columns_; }

  /// @returns the name for this type
  std::string type_name() const override {
    return "__mat_" + std::to_string(rows_) + "_" + std::to_string(columns_) +
           subtype_->type_name();
  }

 private:
  Type* subtype_ = nullptr;
  uint32_t rows_ = 2;
  uint32_t columns_ = 2;
};

}  // namespace type
}  // namespace ast
}  // namespace tint

#endif  // SRC_AST_TYPE_MATRIX_TYPE_H_