MapNode.h

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// MapNode.h
//
// Copyright (c) 2008, 2009, 2015 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// 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.

#pragma once

#include <limits.h>

#include "../OS.h"

#include "Node.h"

namespace HoverRace {
namespace Util {
namespace yaml {

class MapNode : public Node
{
    using SUPER = Node;

public:
    MapNode(yaml_document_t *doc, yaml_node_t *node);
    virtual ~MapNode();

private:
    void Init() const;

    using children_t = std::map<std::string, Node*>;

public:
    Node *Get(const std::string &key) const;

    void ReadString(const std::string &key, std::string &dest) const;
    void ReadBool(const std::string &key, bool &dest) const;
    void ReadDouble(const std::string &key, double &dest,
        double min, double max) const;
    void ReadFloat(const std::string &key, float &dest,
        float min, float max) const;
    void ReadInt(const std::string &key, int &dest,
        int min = INT_MIN, int max = INT_MAX) const;
    void ReadPath(const std::string &key, OS::path_t &dest) const;

    // STL-like iteration, so we can use range-for on the node itself.
    using iterator = children_t::iterator;
    using const_iterator = children_t::const_iterator;
    using value_type = children_t::value_type;
    const_iterator begin() const;
    iterator begin();
    const_iterator end() const;
    iterator end();

private:
    mutable children_t *children;
};

}  // namespace yaml
}  // namespace Util
}  // namespace HoverRace