96 lines
3.5 KiB
C++
96 lines
3.5 KiB
C++
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#include <iostream>
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#include <limits>
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#include "simdjson.h"
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// we define our own asserts to get around NDEBUG
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#ifndef ASSERT
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#define ASSERT(x) \
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{ if (!(x)) { \
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char buf[4096]; \
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snprintf (buf, 4096, "Failure in \"%s\", line %d\n", \
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__FILE__, __LINE__); \
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abort (); \
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} \
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}
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#endif
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using namespace simdjson;
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static const std::string make_json(const std::string value) {
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const std::string s = "{\"key\": ";
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return s + value + "}";
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}
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// e.g. make_json(123) => {"key": 123} as string
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template <typename T> static const std::string make_json(T value) {
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return make_json(std::to_string(value));
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}
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template <typename T>
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static void parse_and_validate(const std::string src, T expected) {
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std::cout << "src: " << src << ", ";
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const padded_string pstr{src};
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simdjson::dom::parser parser;
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bool result;
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if constexpr (std::is_same<int64_t, T>::value) {
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auto [actual, error] = parser.parse(pstr).get<dom::object>()["key"].get<int64_t>();
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if (error) { std::cerr << error << std::endl; abort(); }
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result = (expected == actual);
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} else {
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auto [actual, error] = parser.parse(pstr).get<dom::object>()["key"].get<uint64_t>();
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if (error) { std::cerr << error << std::endl; abort(); }
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result = (expected == actual);
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}
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std::cout << std::boolalpha << "test: " << result << std::endl;
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if(!result) {
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std::cerr << "bug detected" << std::endl;
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exit(EXIT_FAILURE);
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}
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}
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static bool parse_and_check_signed(const std::string src) {
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std::cout << "src: " << src << ", expecting signed" << std::endl;
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const padded_string pstr{src};
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simdjson::dom::parser parser;
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auto [value, error] = parser.parse(pstr).get<dom::object>()["key"];
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if (error) { std::cerr << error << std::endl; abort(); }
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return value.is<int64_t>();
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}
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static bool parse_and_check_unsigned(const std::string src) {
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std::cout << "src: " << src << ", expecting signed" << std::endl;
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const padded_string pstr{src};
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simdjson::dom::parser parser;
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auto [value, error] = parser.parse(pstr).get<dom::object>()["key"];
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if (error) { std::cerr << error << std::endl; abort(); }
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return value.is<uint64_t>();
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}
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int main() {
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using std::numeric_limits;
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constexpr auto int64_max = numeric_limits<int64_t>::max();
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constexpr auto int64_min = numeric_limits<int64_t>::lowest();
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constexpr auto uint64_max = numeric_limits<uint64_t>::max();
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constexpr auto uint64_min = numeric_limits<uint64_t>::lowest();
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parse_and_validate(make_json(int64_max), int64_max);
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parse_and_validate(make_json(int64_min), int64_min);
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parse_and_validate(make_json(uint64_max), uint64_max);
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parse_and_validate(make_json(uint64_min), uint64_min);
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constexpr auto int64_max_plus1 = static_cast<uint64_t>(int64_max) + 1;
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parse_and_validate(make_json(int64_max_plus1), int64_max_plus1);
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if(!parse_and_check_signed(make_json(int64_max))) {
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std::cerr << "bug: large signed integers should be represented as signed integers" << std::endl;
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return EXIT_FAILURE;
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}
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if(!parse_and_check_unsigned(make_json(uint64_max))) {
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std::cerr << "bug: a large unsigned integers is not represented as an unsigned integer" << std::endl;
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return EXIT_FAILURE;
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}
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std::cout << "All ok." << std::endl;
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return EXIT_SUCCESS;
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}
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