35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
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#ifndef RFL_VISIT_HPP_
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#define RFL_VISIT_HPP_
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#include <variant>
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#include "Literal.hpp"
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#include "TaggedUnion.hpp"
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#include "internal/StringLiteral.hpp"
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#include "internal/VisitTree.hpp"
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#include "internal/VisitorWrapper.hpp"
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namespace rfl {
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/// Implements the visitor pattern for Literals.
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template <class Visitor, internal::StringLiteral... _fields, class... Args>
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inline auto visit(const Visitor& _visitor, const Literal<_fields...> _literal,
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const Args&... _args) {
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constexpr int size = sizeof...(_fields);
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using WrapperType = internal::VisitorWrapper<Visitor, _fields...>;
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const auto wrapper = WrapperType(&_visitor);
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return internal::VisitTree::visit<0, size, WrapperType>(
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wrapper, _literal.value(), _args...);
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}
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/// Implements the visitor pattern for TaggedUnions.
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template <class Visitor, internal::StringLiteral _discriminator, class... Args>
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inline auto visit(const Visitor& _visitor,
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const TaggedUnion<_discriminator, Args...>& _tagged_union) {
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return std::visit(_visitor, _tagged_union.variant());
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}
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} // namespace rfl
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#endif // RFL_VISIT_HPP_
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