valueTypeName.h

//
// Copyright 2016 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_USD_SDF_VALUE_TYPE_NAME_H
#define PXR_USD_SDF_VALUE_TYPE_NAME_H
 
#include "pxr/pxr.h"
#include "pxr/usd/sdf/api.h"
#include "pxr/base/tf/token.h"
 
#include <iosfwd>
#include <string>
#include <vector>
 
PXR_NAMESPACE_OPEN_SCOPE
 
class TfEnum;
class TfType;
class VtValue;
class SdfAbstractDataConstValue;
class Sdf_ValueTypeImpl;
 
struct SdfTupleDimensions 
{
public:
    SdfTupleDimensions() : size(0) {}
    SdfTupleDimensions(size_t m) : size(1) { d[0] = m; }
    SdfTupleDimensions(size_t m, size_t n) : size(2) { d[0] = m; d[1] = n; }
    SdfTupleDimensions(const size_t (&s)[2])
        : size(2) { d[0] = s[0]; d[1] = s[1]; }
 
    SDF_API
    bool operator==(const SdfTupleDimensions& rhs) const;
    bool operator!=(const SdfTupleDimensions& rhs) const {
        return !(*this == rhs);
    }
 
public:
    size_t d[2];
    size_t size;
};
 
class SdfValueTypeName
{
public:
    SDF_API
    SdfValueTypeName();
 
    SDF_API
    TfToken GetAsToken() const;
 
    SDF_API
    const TfType& GetType() const;
 
    SDF_API
    bool CanRepresent(const VtValue &value) const;
 
    SDF_API
    bool CanRepresent(const SdfAbstractDataConstValue &value) const;
 
    SDF_API
    const std::string& GetCPPTypeName() const;
 
    SDF_API
    const TfToken& GetRole() const;
 
    SDF_API
    const VtValue& GetDefaultValue() const;
 
    SDF_API
    const TfEnum& GetDefaultUnit() const;
 
    SDF_API
    SdfValueTypeName GetScalarType() const;
 
    SDF_API
    SdfValueTypeName GetArrayType() const;
 
    SDF_API
    bool IsScalar() const;
 
    SDF_API
    bool IsArray() const;
 
    SDF_API
    SdfTupleDimensions GetDimensions() const;
 
    SDF_API
    bool operator==(const SdfValueTypeName& rhs) const;
    bool operator!=(const SdfValueTypeName& rhs) const {
        return !(*this == rhs);
    }
 
    SDF_API
    bool operator==(const std::string& rhs) const;
    bool operator!=(const std::string& rhs) const {
        return !(*this == rhs);
    }
 
    SDF_API
    bool operator==(const TfToken& rhs) const;
    bool operator!=(const TfToken& rhs) const {
        return !(*this == rhs);
    }
 
    friend inline
    bool operator==(const std::string& lhs, const SdfValueTypeName& rhs) {
        return rhs == lhs;
    }
    friend inline
    bool operator!=(const std::string& lhs, const SdfValueTypeName& rhs) {
        return !(rhs == lhs);
    }
 
    friend inline
    bool operator==(const TfToken& lhs, const SdfValueTypeName &rhs) {
        return rhs == lhs;
    }
    friend inline
    bool operator!=(const TfToken& lhs, const SdfValueTypeName &rhs) {
        return !(rhs == lhs);
    }
 
    SDF_API
    size_t GetHash() const;
 
    explicit operator bool() const
    {
        return !_IsEmpty();
    }
 
    SDF_API
    std::vector<TfToken> GetAliasesAsTokens() const;
 
private:
    friend class Sdf_ValueTypeRegistry;
    friend struct Sdf_ValueTypePrivate;
 
    SDF_API
    explicit SdfValueTypeName(const Sdf_ValueTypeImpl*);
 
    SDF_API
    bool _IsEmpty() const;
 
private:
    const Sdf_ValueTypeImpl* _impl;
};
 
struct SdfValueTypeNameHash {
    size_t operator()(const SdfValueTypeName& x) const
    {
        return x.GetHash();
    }
};
 
inline size_t
hash_value(const SdfValueTypeName& typeName)
{
    return typeName.GetHash();
}
 
SDF_API std::ostream& operator<<(std::ostream&, const SdfValueTypeName& typeName);
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_USD_SDF_VALUE_TYPE_NAME_H