Function profile_json_memory

tests/profile/json_memory_profile.cpp:318–415

Helper to run memory profiling on a JSON string

// Helper to run memory profiling on a JSON string
void profile_json_memory(const char* test_name, const fl::string& json_data) {
    printf("\n\n");
    printf("================================================================================\n");
    printf("%s\n", test_name);
    printf("================================================================================\n");
    printf("JSON size: %zu bytes (%.2f KB)\n", json_data.size(), json_data.size() / 1024.0);
    printf("\n");

#ifdef _WIN32
    init_real_allocators();
#endif

    // Baseline: Measure overhead of tracking itself
    g_tracking_enabled = false;
    {
        json warmup = json::parse(json_data);
        (void)warmup;
    }

    // Test 1: Legacy parse()
    g_stats.reset();
    g_tracking_enabled = true;

    size_t parse1_peak = 0;
    size_t parse1_allocs = 0;
    {
        json result1 = json::parse(json_data);
        if (result1.is_null()) {
            printf("❌ ERROR: Legacy parse() failed\n");
            g_tracking_enabled = false;
            return;
        }

        parse1_peak = g_stats.peak_bytes.load();
        parse1_allocs = g_stats.alloc_count.load();
    }

    g_tracking_enabled = false;
    g_stats.print_stats("Legacy parse()");

    // Test 2: Custom parse2()
    g_stats.reset();
    g_tracking_enabled = true;

    size_t parse2_peak = 0;
    size_t parse2_allocs = 0;
    {
        json result2 = json::parse2(json_data);
        if (result2.is_null()) {
            printf("❌ ERROR: Custom parse2() failed\n");
            g_tracking_enabled = false;
            return;
        }

        parse2_peak = g_stats.peak_bytes.load();
        parse2_allocs = g_stats.alloc_count.load();
    }