benchmark.d

import std.datetime;
import std.stdio;
import std.file;
import std.algorithm;

import stdJSON = std.json;
import vibeJSON = vibe.data.json;
import myJSON = json;

immutable size_t array_size = 1000;
immutable int runs = 100;
immutable size_t chunk_size = 4096;

string jsonString;

void buildTestData() {
    auto obj = myJSON.jsonObject();

    obj["a"] = "foo";
    obj["b"] = "bar";
    obj["c"] = "baz";

    auto subobj1 = myJSON.jsonObject();

    subobj1["bla"] = 1234.5f;

    obj["sub"] = subobj1;

    auto subobj2 = myJSON.jsonObject();

    subobj2["alb"] = null;

    subobj1["sub"] = subobj2;

    auto arr = myJSON.jsonArray();
    arr.length = array_size;

    for (size_t i = 0; i < array_size; ++i) {
        arr[i] = obj;
    }

    jsonString = myJSON.toJSON(arr);
}

void readArrayStandard() {
    stdJSON.parseJSON(jsonString);
}

void readArrayVibe() {
    vibeJSON.parseJsonString(jsonString);
}

void readArrayMyWay() {
    myJSON.parseJSON(jsonString);
}

void main(string[] argv) {
    buildTestData();

    auto testList = [
        "std.json",
        "vibe.data.json",
        "json"
    ];

    auto result = benchmark!(
        readArrayStandard,
        readArrayVibe,
        readArrayMyWay
    )(runs);

    writefln("Ran for %d runs\n", runs);

    foreach(i, testName; testList) {
        writefln("%s : %s ms", testName, result[i].msecs);
    }
}