mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Daniel Lemire
feb1e7feb6
* work on the ondemand iterators * guarding two SIMDJSON_ASSUME * simplify following @jkeiser's comment * adding safety rails to the iterators * silencing a warning. * updating the amalgamation files
90 lines
3.8 KiB
C++
90 lines
3.8 KiB
C++
#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H
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#ifndef SIMDJSON_CONDITIONAL_INCLUDE
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#define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H
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#include "simdjson/generic/ondemand/base.h"
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#include "simdjson/generic/ondemand/array_iterator.h"
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#include "simdjson/generic/ondemand/value-inl.h"
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#include "simdjson/generic/ondemand/value_iterator-inl.h"
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#endif // SIMDJSON_CONDITIONAL_INCLUDE
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namespace simdjson {
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namespace SIMDJSON_IMPLEMENTATION {
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namespace ondemand {
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simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept
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: iter{_iter}
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{}
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simdjson_inline simdjson_result<value> array_iterator::operator*() noexcept {
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#if SIMDJSON_DEVELOPMENT_CHECKS
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SIMDJSON_ASSUME(!has_been_referenced);
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has_been_referenced = true;
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#endif
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if (iter.error()) { iter.abandon(); return iter.error(); }
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return value(iter.child());
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}
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simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept {
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return !(*this != other);
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}
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simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept {
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return iter.is_open();
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}
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simdjson_inline array_iterator &array_iterator::operator++() noexcept {
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#if SIMDJSON_DEVELOPMENT_CHECKS
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has_been_referenced = false;
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#endif
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error_code error;
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// PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here.
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// However, it does not seem to make a perf difference, so we add it out of an abundance of caution.
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if (( error = iter.error() )) { return *this; }
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if (( error = iter.skip_child() )) { return *this; }
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if (( error = iter.has_next_element().error() )) { return *this; }
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return *this;
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}
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simdjson_inline bool array_iterator::at_end() const noexcept {
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return iter.at_end();
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}
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} // namespace ondemand
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} // namespace SIMDJSON_IMPLEMENTATION
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} // namespace simdjson
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namespace simdjson {
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::simdjson_result(
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SIMDJSON_IMPLEMENTATION::ondemand::array_iterator &&value
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) noexcept
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: SIMDJSON_IMPLEMENTATION::implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>(std::forward<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>(value))
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{
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first.iter.assert_is_valid();
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}
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::simdjson_result(error_code error) noexcept
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: SIMDJSON_IMPLEMENTATION::implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>({}, error)
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{
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}
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::operator*() noexcept {
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if (error()) { return error(); }
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return *first;
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}
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simdjson_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::operator==(const simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> &other) const noexcept {
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if (!first.iter.is_valid()) { return !error(); }
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return first == other.first;
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}
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simdjson_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::operator!=(const simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> &other) const noexcept {
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if (!first.iter.is_valid()) { return error(); }
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return first != other.first;
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}
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator> &simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::operator++() noexcept {
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// Clear the error if there is one, so we don't yield it twice
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if (error()) { second = SUCCESS; return *this; }
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++(first);
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return *this;
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}
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simdjson_inline bool simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::array_iterator>::at_end() const noexcept {
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return !first.iter.is_valid() || first.at_end();
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}
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} // namespace simdjson
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#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H
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