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63711510b6
... you are too slow and QJson API is so ugly. Now using this wonderful json lib: https://github.com/nlohmann/json Results in release mode (QJson tests are not shown but QJson was even slower than string concat). PASS : TestQgsJsonUtils::testExportAttributesJson(Use json) RESULT : TestQgsJsonUtils::testExportAttributesJson():"Use json": 0.0022 msecs per iteration (total: 75, iterations: 32768) PASS : TestQgsJsonUtils::testExportAttributesJson(Use old string concat) RESULT : TestQgsJsonUtils::testExportAttributesJson():"Use old string concat": 0.0032 msecs per iteration (total: 54, iterations: 16384) PASS : TestQgsJsonUtils::testExportFeatureJson(Use json) RESULT : TestQgsJsonUtils::testExportFeatureJson():"Use json": 0.011 msecs per iteration (total: 96, iterations: 8192) PASS : TestQgsJsonUtils::testExportFeatureJson(Use old string concat) RESULT : TestQgsJsonUtils::testExportFeatureJson():"Use old string concat": 0.015 msecs per iteration (total: 64, iterations: 4096) PASS : TestQgsJsonUtils::testExportGeomToJson(Use json) RESULT : TestQgsJsonUtils::testExportGeomToJson():"Use json": 0.76 msecs per iteration (total: 98, iterations: 128) PASS : TestQgsJsonUtils::testExportGeomToJson(Use old string concat) RESULT : TestQgsJsonUtils::testExportGeomToJson():"Use old string concat": 0.85 msecs per iteration (total: 55, iterations: 64) PASS : TestQgsJsonUtils::cleanupTestCase()
26 lines
720 B
C++
26 lines
720 B
C++
#pragma once
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#include <nlohmann/detail/iterators/primitive_iterator.hpp>
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namespace nlohmann
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{
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namespace detail
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{
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/*!
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@brief an iterator value
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@note This structure could easily be a union, but MSVC currently does not allow
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unions members with complex constructors, see https://github.com/nlohmann/json/pull/105.
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*/
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template<typename BasicJsonType> struct internal_iterator
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{
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/// iterator for JSON objects
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typename BasicJsonType::object_t::iterator object_iterator {};
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/// iterator for JSON arrays
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typename BasicJsonType::array_t::iterator array_iterator {};
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/// generic iterator for all other types
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primitive_iterator_t primitive_iterator {};
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};
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} // namespace detail
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} // namespace nlohmann
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