susumu.yata
null+****@clear*****
Tue Nov 18 16:38:22 JST 2014
susumu.yata 2014-11-18 16:38:22 +0900 (Tue, 18 Nov 2014) New Revision: 6a4cfbee7e81308a192af621181fa7397532494c https://github.com/groonga/grnxx/commit/6a4cfbee7e81308a192af621181fa7397532494c Message: Add Vector<Text>. (#109) Modified files: include/grnxx/data_types/vector/text.hpp Modified: include/grnxx/data_types/vector/text.hpp (+105 -1) =================================================================== --- include/grnxx/data_types/vector/text.hpp 2014-11-18 11:54:17 +0900 (f0dd678) +++ include/grnxx/data_types/vector/text.hpp 2014-11-18 16:38:22 +0900 (2971622) @@ -12,10 +12,114 @@ template <typename T> class Vector; template <> class Vector<Text> { public: - // TODO + Vector() = default; + ~Vector() = default; + + constexpr Vector(const Vector &) = default; + Vector &operator=(const Vector &) = default; + + constexpr Vector(const Text *data, size_t size) + : is_direct_(true), + size_(size), + data_(data) {} + Vector(const void *headers, const char *bodies, Int size) + : is_direct_(false), + size_(size), + headers_(static_cast<const Header *>(headers)), + bodies_(bodies) {} + explicit constexpr Vector(NA) + : is_direct_(true), + size_(NA()), + data_(nullptr) {} + + Text operator[](Int i) const { + if (is_na() || (static_cast<uint64_t>(i.value()) >= + static_cast<uint64_t>(size_.value()))) { + return Text::na(); + } + if (is_direct_) { + return data_[i.value()]; + } else { + return Text(&bodies_[headers_[i.value()].offset], + headers_[i.value()].size.value()); + } + } + // TODO: To be removed. + const Text &operator[](size_t i) const { + return data_[i]; + } + constexpr Int size() const { + return size_; + } + + constexpr bool is_empty() const { + return size_.value() == 0; + } + constexpr bool is_na() const { + return size_.is_na(); + } + + // TODO: The behavior of N/A in vector is not fixed yet (#107). + Bool operator==(const Vector &rhs) const { + Bool has_equal_size = (size_ == rhs.size_); + if (has_equal_size.is_true()) { + size_t size = size_.value(); + for (size_t i = 0; i < size; ++i) { + Text lhs_text = (*this)[grnxx::Int(i)]; + Text rhs_text = rhs[grnxx::Int(i)]; + // TODO: Binary not equal should be used. + if (!(lhs_text.is_na() && rhs_text.is_na()) && + (!(lhs_text == rhs_text)).is_true()) { + return Bool(false); + } + } + } + return has_equal_size; + } + // TODO: The behavior of N/A in vector is not fixed yet (#107). + Bool operator!=(const Vector &rhs) const { + Bool has_not_equal_size = (size_ != rhs.size_); + if (has_not_equal_size.is_false()) { + size_t size = size_.value(); + for (size_t i = 0; i < size; ++i) { + Text lhs_text = (*this)[grnxx::Int(i)]; + Text rhs_text = rhs[grnxx::Int(i)]; + // TODO: Binary not equal should be used. + if (!(lhs_text.is_na() && rhs_text.is_na()) && + (!(lhs_text == rhs_text)).is_true()) { + return Bool(true); + } + } + } + return has_not_equal_size; + } + static constexpr DataType type() { return TEXT_VECTOR_DATA; } + + static constexpr Vector empty() { + return Vector(nullptr, 0); + } + static constexpr Vector na() { + return Vector(NA()); + } + + private: + struct Header { + size_t offset; + Int size; + }; + + bool is_direct_; + Int size_; + union { + const Text *data_; + struct { + const Header *headers_; + const char *bodies_; + }; + }; }; using TextVector = Vector<Text>; -------------- next part -------------- HTML����������������������������...ダウンロード
