mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
strager
5510089d45
* Rename simdjson_really_inline -> simdjson_inline I want to change the simdjson_really_inline macro to sometimes not force inlining. After that upcoming change, the name simdjson_really_inline will no longer makes sense. Rename simdjson_really_inline to simdjson_inline. This patch should not change semantics; simdjson_inline still forces inlining as before. Some functions still need to be really inlined for ABI reasons. (GCC's -Wpsabi complains otherwise.) Leave those functions marked as simdjson_really_inline. * Improve build times for debug builds simdjson_inline is used for most simdjson functions. It forces inlining. In unoptimized/debug builds, this can lead to a lot of machine code being generated (especially with Address Sanitizer), causing slow compilation. Change simdjson_inline to force inlining only for optimized builds. Sometimes, the programmer might want a slightly-optimized build and want fast compilation (e.g. GCC's -Og mode). Allow simdjson users to define the simdjson_inline macro themselves (e.g. on the command line: -Dsimdjson_inline=inline) in cases where the default behavior is undesired. This patch reduced build times by over 75% for ondemand_object_tests.cpp with GCC 9.4.0 and CMAKE_BUILD_TYPE=Debug on my AMD 5950X: Before: 6.885 6.683 6.971 6.957 6.949 seconds (5 samples) After: 1.492 1.551 1.494 1.490 1.531 seconds (5 samples)
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
#include "simdjson/error.h"
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namespace simdjson {
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namespace SIMDJSON_IMPLEMENTATION {
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namespace ondemand {
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class field;
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class object_iterator {
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public:
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/**
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* Create a new invalid object_iterator.
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*
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* Exists so you can declare a variable and later assign to it before use.
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*/
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simdjson_inline object_iterator() noexcept = default;
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//
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// Iterator interface
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//
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// Reads key and value, yielding them to the user.
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// MUST ONLY BE CALLED ONCE PER ITERATION.
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simdjson_inline simdjson_result<field> operator*() noexcept;
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// Assumes it's being compared with the end. true if depth < iter->depth.
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simdjson_inline bool operator==(const object_iterator &) const noexcept;
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// Assumes it's being compared with the end. true if depth >= iter->depth.
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simdjson_inline bool operator!=(const object_iterator &) const noexcept;
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// Checks for ']' and ','
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simdjson_inline object_iterator &operator++() noexcept;
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private:
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/**
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* The underlying JSON iterator.
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*
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* PERF NOTE: expected to be elided in favor of the parent document: this is set when the object
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* is first used, and never changes afterwards.
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*/
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value_iterator iter{};
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simdjson_inline object_iterator(const value_iterator &iter) noexcept;
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friend struct simdjson_result<object_iterator>;
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friend class object;
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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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template<>
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struct simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object_iterator> : public SIMDJSON_IMPLEMENTATION::implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::object_iterator> {
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public:
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simdjson_inline simdjson_result(SIMDJSON_IMPLEMENTATION::ondemand::object_iterator &&value) noexcept; ///< @private
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simdjson_inline simdjson_result(error_code error) noexcept; ///< @private
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simdjson_inline simdjson_result() noexcept = default;
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//
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// Iterator interface
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//
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// Reads key and value, yielding them to the user.
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field> operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION.
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// Assumes it's being compared with the end. true if depth < iter->depth.
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simdjson_inline bool operator==(const simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object_iterator> &) const noexcept;
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// Assumes it's being compared with the end. true if depth >= iter->depth.
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simdjson_inline bool operator!=(const simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object_iterator> &) const noexcept;
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// Checks for ']' and ','
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simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::object_iterator> &operator++() noexcept;
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};
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} // namespace simdjson
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