graph LR
  user[Usuário] --> |FIRST REQ| validators
  validators --> |FAIL&ABORT| user
  validators --> |PERGUNTAS| user
  validators --> |I'M ALIVE| modifiers
  user --> |RESPOSTAS| modifiers
  modifiers --> persisters


sequenceDiagram
  participant Usuário
  participant Validators
  Usuário->Validators: Isso é válido?
  Validators->Modifiers: Isso é válido, continue...
  Validators-->Usuário: blocante, abortar
  Validators-->Usuário: tenho dúvidas...
  Usuário->Modifiers: dúvidas? que tal respostas!

NodeJS got almost 2x faster.
Java 8 seems almost 2x slower.
Python has no significant change in the performance. Every new release is a little bit faster but overall Python is steadily 15x slower than C++.
Perl has the same trend as Python and is steadily 22x slower than C++.
PHP 5.x is the slowest with results between 47x to 60x behind C++.
PHP 7 made the big surprise. It is about 10x faster than PHP 5.x, and about 3x faster than Python which is the next fastest script language.

existe_diff() {
	passado=$1
	futuro=$2
	[[ `git log --no-decorate -1 --format=oneline ${passado} ^${futuro} | wc -l` > 0 ]]
}

QFile vertexShaderFile(":shaders//shaders//vertex.vert");
    if(!vertexShaderFile.open(QIODevice::ReadOnly | QIODevice::Text)){
        qCritical() << "Could not read vertex shader file";
        return;
    }

    QTextStream inVertexFile(&vertexShaderFile);
    this->vertexShaderSource = inVertexFile.readAll().toStdString();

    QFile fragmentShaderFile(":shaders//shaders//fragment.frag");
    if(!fragmentShaderFile.open(QIODevice::ReadOnly | QIODevice::Text)){
        qCritical() << "Could not read fragment shader file";