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When a QPDF is destroyed, changing indirect objects to direct nulls makes them effectively disappear silently when they sneak into other places. Instead, we should treat this as an error. Adding a destroyed object type makes this possible.
40 lines
831 B
C++
40 lines
831 B
C++
#include <qpdf/QPDF_Destroyed.hh>
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#include <stdexcept>
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QPDF_Destroyed::QPDF_Destroyed() :
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QPDFValue(::ot_destroyed, "destroyed")
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{
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}
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std::shared_ptr<QPDFValue>
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QPDF_Destroyed::getInstance()
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{
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static std::shared_ptr<QPDFValue> instance(new QPDF_Destroyed());
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return instance;
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}
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std::shared_ptr<QPDFValueProxy>
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QPDF_Destroyed::shallowCopy()
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{
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throw std::logic_error(
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"attempted to shallow copy QPDFObjectHandle from destroyed QPDF");
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return nullptr;
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}
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std::string
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QPDF_Destroyed::unparse()
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{
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throw std::logic_error(
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"attempted to unparse a QPDFObjectHandle from a destroyed QPDF");
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return "";
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}
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JSON
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QPDF_Destroyed::getJSON(int json_version)
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{
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throw std::logic_error(
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"attempted to get JSON from a QPDFObjectHandle from a destroyed QPDF");
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return JSON::makeNull();
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}
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