98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/* Copyright 2017 The MathWorks, Inc. */
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#ifndef MATLAB_EXTDATA_MATLABSTRING_REF_EXT_HPP
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#define MATLAB_EXTDATA_MATLABSTRING_REF_EXT_HPP
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#include "String.hpp"
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#include "ReferenceHolder.hpp"
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namespace matlab {
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namespace data {
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/**
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* The MATLABStringReferenceExt class is a base class for all reference types that refer to MATLABString.
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* It provides APIs for MATLABString that are not supported by generic Reference class.
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*/
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class MATLABStringReferenceExt : public ReferenceHolder {
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public:
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/*
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* Check if MATLABString contains a value.
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*
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* @return true if MATLABString contains value, false if it is missing
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* @throw NotEnoughIndicesProvidedException - if not enough indices were provided
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* @throw InvalidArrayIndexException - if an array index is out of range
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* @throw TooManyIndicesProvidedException if too many indices were provided
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*/
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bool has_value() const {
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MATLABString opt = detail::getElement<MATLABString>(pImpl);
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return opt.has_value();
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}
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/*
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* Check if MATLABString contains a value.
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*
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* @return true if MATLABString contains value, false if it is missing
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*
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* @throw NotEnoughIndicesProvidedException - if not enough indices were provided
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* @throw InvalidArrayIndexException - if an array index is out of range
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* @throw TooManyIndicesProvidedException if too many indices were provided
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*/
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explicit operator bool() const {
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return has_value();
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}
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/**
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* Cast to String
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*
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* @code
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* String val = strArray[1][2];
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* @endcode
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*
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* @return String - the element of the array
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*
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* @throw NotEnoughIndicesProvidedException - if not enough indices were provided
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* @throw InvalidArrayIndexException - if an array index is out of range
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* @throw TooManyIndicesProvidedException if too many indices were provided
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* @throw std::runtime_error - if the MATLABString has no value
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*/
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operator String() const {
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MATLABString opt = detail::getElement<MATLABString>(pImpl);
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if (!opt) {
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throw std::runtime_error("Missing string value");
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}
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return *opt;
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}
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protected:
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friend class detail::Access;
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MATLABStringReferenceExt(detail::ReferenceImpl* impl) MW_NOEXCEPT :
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ReferenceHolder(impl) {}
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MATLABStringReferenceExt(std::shared_ptr<detail::ReferenceImpl> impl) MW_NOEXCEPT :
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ReferenceHolder(impl) {}
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MATLABStringReferenceExt(MATLABStringReferenceExt&& rhs) MW_NOEXCEPT :
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ReferenceHolder(std::move(rhs)) {}
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MATLABStringReferenceExt& operator= (MATLABStringReferenceExt&& rhs) MW_NOEXCEPT {
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ReferenceHolder::operator= (std::move(rhs));
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return *this;
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}
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MATLABStringReferenceExt(const MATLABStringReferenceExt& rhs) MW_NOEXCEPT :
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ReferenceHolder(rhs) {}
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MATLABStringReferenceExt& operator= (const MATLABStringReferenceExt& rhs) MW_NOEXCEPT {
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ReferenceHolder::operator= (rhs);
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return *this;
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}
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private:
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MATLABStringReferenceExt() = delete;
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};
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}
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}
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#endif
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