src/developer/ffx/lib/fuchsia-controller/cpp/fidl_codec/object_converter.h

// Copyright 2023 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_DEVELOPER_FFX_LIB_FUCHSIA_CONTROLLER_CPP_FIDL_CODEC_OBJECT_CONVERTER_H_
#define SRC_DEVELOPER_FFX_LIB_FUCHSIA_CONTROLLER_CPP_FIDL_CODEC_OBJECT_CONVERTER_H_

#include <Python.h>

#include "src/lib/fidl_codec/type_visitor.h"

namespace fuchsia_controller::fidl_codec::converter {

class ObjectConverter : public ::fidl_codec::TypeVisitor {
 public:
  static std::unique_ptr<::fidl_codec::Value> Convert(PyObject* obj,
                                                      const ::fidl_codec::Type* type) {
    ObjectConverter converter(obj);
    type->Visit(&converter);
    return std::move(converter.result_);
  }

 private:
  explicit ObjectConverter(PyObject* obj) : obj_(obj) {}
  bool HandleNone(const ::fidl_codec::Type* type);
  void VisitSequence(const ::fidl_codec::ElementSequenceType* type, std::optional<size_t> count);
  void VisitInteger(bool is_signed);
  // TypeVisitor implementation
  void VisitType(const ::fidl_codec::Type* type) override;
  void VisitEmptyPayloadType(const ::fidl_codec::EmptyPayloadType* type) override;
  void VisitStringType(const ::fidl_codec::StringType* type) override;
  void VisitBoolType(const ::fidl_codec::BoolType* type) override;
  void VisitStructType(const ::fidl_codec::StructType* type) override;
  void VisitTableType(const ::fidl_codec::TableType* type) override;
  void VisitUnionType(const ::fidl_codec::UnionType* type) override;
  void VisitArrayType(const ::fidl_codec::ArrayType* type) override;
  void VisitVectorType(const ::fidl_codec::VectorType* type) override;
  void VisitUint8Type(const ::fidl_codec::Uint8Type* type) override;
  void VisitUint16Type(const ::fidl_codec::Uint16Type* type) override;
  void VisitUint32Type(const ::fidl_codec::Uint32Type* type) override;
  void VisitUint64Type(const ::fidl_codec::Uint64Type* type) override;
  void VisitInt8Type(const ::fidl_codec::Int8Type* type) override;
  void VisitInt16Type(const ::fidl_codec::Int16Type* type) override;
  void VisitInt32Type(const ::fidl_codec::Int32Type* type) override;
  void VisitInt64Type(const ::fidl_codec::Int64Type* type) override;
  void VisitEnumType(const ::fidl_codec::EnumType* type) override;
  void VisitBitsType(const ::fidl_codec::BitsType* type) override;
  void VisitHandleType(const ::fidl_codec::HandleType* type) override;
  void VisitFloat32Type(const ::fidl_codec::Float32Type* type) override;
  void VisitFloat64Type(const ::fidl_codec::Float64Type* type) override;

  PyObject* obj_;
  std::unique_ptr<::fidl_codec::Value> result_;
};

}  // namespace fuchsia_controller::fidl_codec::converter

#endif  // SRC_DEVELOPER_FFX_LIB_FUCHSIA_CONTROLLER_CPP_FIDL_CODEC_OBJECT_CONVERTER_H_