public function testWalkerCapturesAllAnalysisExceptionsAndReturnsThem()
{
$ast = $this->parseSource(file_get_contents(STUBPATH . '/walk/class_2.php'));
$walker = new NodeWalker();
$errors = $walker->walk($ast, function (Node $node) {
throw AnalysisException::withNode($node);
});
$this->assertCount(9, $errors);
$this->assertArrayOf(AnalysisException::class, $errors);
}
/**
* Computes the complexity of a part of code.
*
* @param Node[]|Node|null $ast Abstract Syntax Tree node(s)
* @return int The Cyclomatic Complexity Number
*/
public function compute($ast)
{
$complexity = 0;
$walker = new NodeWalker();
// Walk through all the nodes one by one
$walker->walk($ast, function (Node $node) use(&$complexity) {
// Add the complexity value of the given node
// to the overall complexity of the AST
$complexity += $this->complexityChecker->getValue($node);
});
return $complexity;
}
/**
* @param Node[]|null $ast
* @return array
*/
public function analyze($ast)
{
$walker = new NodeWalker();
$errors = $walker->walk($ast, function ($node) {
foreach ($this->checkers() as $class) {
/** @var CheckerInterface $checker */
$checker = new $class();
if ($checker instanceof ParametersInterface) {
$checker->setParameters($this->config);
}
$this->bootstrapper->bootstrap($checker);
$checker->check($node);
}
});
return $errors;
}
