declare.h

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//
// Copyright 2018 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
 
#ifndef PXR_USD_NDR_DECLARE_H
#define PXR_USD_NDR_DECLARE_H
 
 
#include "pxr/pxr.h"
#include "pxr/usd/ndr/api.h"
#include "pxr/base/tf/token.h"
 
#include <memory>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
 
PXR_NAMESPACE_OPEN_SCOPE
 
class NdrNode;
class NdrProperty;
class SdfValueTypeName;
 
 
typedef TfToken NdrIdentifier;
typedef TfToken::HashFunctor NdrIdentifierHashFunctor;
inline const std::string&
NdrGetIdentifierString(const NdrIdentifier& id) { return id.GetString(); }
typedef std::vector<NdrIdentifier> NdrIdentifierVec;
typedef std::unordered_set<NdrIdentifier,
                           NdrIdentifierHashFunctor> NdrIdentifierSet;
 
// Token
typedef std::vector<TfToken> NdrTokenVec;
typedef std::unordered_map<TfToken, std::string,
                           TfToken::HashFunctor> NdrTokenMap;
 
// Property
typedef NdrProperty* NdrPropertyPtr;
typedef NdrProperty const* NdrPropertyConstPtr;
typedef std::unique_ptr<NdrProperty> NdrPropertyUniquePtr;
typedef std::vector<NdrPropertyUniquePtr> NdrPropertyUniquePtrVec;
typedef std::unordered_map<TfToken, NdrPropertyConstPtr,
                           TfToken::HashFunctor> NdrPropertyPtrMap;
 
// Node
typedef NdrNode* NdrNodePtr;
typedef NdrNode const* NdrNodeConstPtr;
typedef std::unique_ptr<NdrNode> NdrNodeUniquePtr;
typedef std::vector<NdrNodeConstPtr> NdrNodeConstPtrVec;
typedef std::vector<NdrNodeUniquePtr> NdrNodeUniquePtrVec;
 
// Misc
typedef std::vector<std::string> NdrStringVec;
typedef std::pair<TfToken, TfToken> NdrOption;
typedef std::vector<NdrOption> NdrOptionVec;
typedef std::unordered_set<std::string> NdrStringSet;
typedef std::pair<SdfValueTypeName, TfToken> NdrSdfTypeIndicator;
 
// Version
class NdrVersion {
public:
    NDR_API
    NdrVersion() = default;
    NDR_API
    NdrVersion(int major, int minor = 0);
    NDR_API
    NdrVersion(const std::string& x);
 
    NDR_API
    NdrVersion GetAsDefault() const
    {
        return NdrVersion(*this, true);
    }
 
    NDR_API
    int GetMajor() const { return _major; }
    NDR_API
    int GetMinor() const { return _minor; }
    NDR_API
    bool IsDefault() const { return _isDefault; }
 
    NDR_API
    std::string GetString() const;
 
    NDR_API
    std::string GetStringSuffix() const;
 
    NDR_API
    std::size_t GetHash() const
    {
        return (static_cast<std::size_t>(_major) << 32) +
                static_cast<std::size_t>(_minor);
    }
 
    NDR_API
    explicit operator bool() const
    {
        return !!*this;
    }
 
    NDR_API
    bool operator!() const
    {
        return _major == 0 && _minor == 0;
    }
 
    NDR_API
    friend bool operator==(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return lhs._major == rhs._major && lhs._minor == rhs._minor;
    }
 
    NDR_API
    friend bool operator!=(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return !(lhs == rhs);
    }
 
    NDR_API
    friend bool operator<(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return lhs._major < rhs._major ||
               (lhs._major == rhs._major && lhs._minor < rhs._minor);
    }
 
    NDR_API
    friend bool operator<=(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return lhs._major < rhs._major ||
               (lhs._major == rhs._major && lhs._minor <= rhs._minor);
    }
 
    NDR_API
    friend bool operator>(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return !(lhs <= rhs);
    }
 
    NDR_API
    friend bool operator>=(const NdrVersion& lhs, const NdrVersion& rhs)
    {
        return !(lhs < rhs);
    }
 
private:
    NdrVersion(const NdrVersion& x, bool)
        : _major(x._major), _minor(x._minor), _isDefault(true) { }
 
private:
    int _major = 0, _minor = 0;
    bool _isDefault = false;
};
 
enum NdrVersionFilter {
    NdrVersionFilterDefaultOnly,
    NdrVersionFilterAllVersions,
    NdrNumVersionFilters
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_USD_NDR_DECLARE_H