private function traverse($code)
{
$ast = ParseUtils::parse($code);
$nodes =& $this->nodes;
InOrderTraversal::traverseWithCallback($ast, function ($node) use(&$nodes) {
$nodes[] = $node;
});
}
private function updateAst()
{
try {
$this->ast = ParseUtils::parse($this->getContent());
NodeTraversal::traverseWithCallback($this->ast, $this->typeInferencePass, $this->typeInferencePass->getScopeCreator());
NodeTraversal::traverseWithCallback($this->ast, $this->typeInferencePass, $this->typeInferencePass->getScopeCreator());
} catch (\PHPParser_Error $ex) {
// The original content of the file is not valid PHP code. We just ignore this.
// Passes that require an AST, have to check with hasAst() manually.
}
}
protected function execute(InputInterface $input, OutputInterface $output)
{
if (!is_file($file = $input->getArgument('file'))) {
throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $file));
}
if (false === strpos($input->getArgument('element'), '::')) {
throw new \InvalidArgumentException(sprintf('The element must be of the form "ClassName::methodName", but got "%s".', $input->getArgument('element')));
}
list($class, $method) = explode('::', $input->getArgument('element'));
$ast = ParseUtils::parse(file_get_contents($file));
NodeTraversal::traverseWithCallback($ast, $callback = new SearchCallback($class, $method));
if (null === ($cfg = $callback->getCfg())) {
throw new \RuntimeException(sprintf('The code element "%s" was not found in the given file.', $input->getArgument('element')));
}
$output->writeln((new GraphvizSerializer())->serialize($cfg));
}
private function computeUseDef($code)
{
$code = sprintf('<?php function foo($param1, $param2) { %s }', $code);
$ast = \JMS\PhpManipulator\PhpParser\ParseUtils::parse($code);
$scope = (new \Scrutinizer\PhpAnalyzer\PhpParser\Scope\SyntacticScopeCreator())->createScope($ast);
$cfa = new \Scrutinizer\PhpAnalyzer\ControlFlow\ControlFlowAnalysis();
$cfa->process($ast);
$cfg = $cfa->getGraph();
$this->analysis = new \Scrutinizer\PhpAnalyzer\DataFlow\VariableReachability\MayBeReachingUseAnalysis($cfg, $scope);
$this->analysis->analyze();
$this->def = null;
$this->uses = array();
\Scrutinizer\PhpAnalyzer\PhpParser\NodeTraversal::traverseWithCallback($ast, new \Scrutinizer\PhpAnalyzer\PhpParser\PreOrderCallback(function ($t, \PHPParser_Node $node) {
if (!$node instanceof \PHPParser_Node_Stmt_Label) {
return;
}
if ('D' === $node->name) {
$this->def = $node->getAttribute('next');
} else {
if (0 === strpos($node->name, 'U')) {
$this->uses[] = $node->getAttribute('next');
}
}
}));
$this->assertNotNull($this->def);
$this->assertNotEmpty($this->uses);
}
public function setInput($code, \PHPParser_Node $ast = null)
{
$this->astStream->setAst($ast ?: PhpParser\ParseUtils::parse($code));
$this->tokenStream->setCode($code);
$lastNode = null;
while ($this->moveNext()) {
if ($lastNode !== $this->node) {
$this->node->setAttribute('start_token', $this->token);
if (null !== $lastNode) {
$lastNode->setAttribute('end_token', $this->token->getPreviousToken()->get());
}
}
$lastNode = $this->node;
}
$this->reset();
}
private function computeDefUse($code)
{
$code = sprintf('<?php function foo($param1, $param2) { %s }', $code);
$ast = ParseUtils::parse($code);
$scope = (new SyntacticScopeCreator())->createScope($ast);
$cfa = new ControlFlowAnalysis();
$cfa->process($ast);
$cfg = $cfa->getGraph();
$this->analysis = new MustBeReachingDefAnalysis($cfg, $scope);
$this->analysis->analyze();
$this->def = $this->use = null;
NodeTraversal::traverseWithCallback($ast, new PreOrderCallback(function (NodeTraversal $t, \PHPParser_Node $node) {
if (!$node instanceof \PHPParser_Node_Stmt_Label) {
return;
}
if ('D' === $node->name) {
$this->def = $node->getAttribute('next');
} else {
if ('U' === $node->name) {
$this->use = $node->getAttribute('next');
} else {
if (0 === strpos($node->name, 'DP_')) {
$className = 'PHPParser_Node_' . substr($node->name, 3);
$parent = $node;
while (null !== ($parent = $parent->getAttribute('parent'))) {
if ($parent instanceof $className) {
$this->def = $parent;
return;
}
}
throw new \RuntimeException(sprintf('Did not find any parent of class "%s".', $className));
}
}
}
}));
$this->assertNotNull($this->def, 'Did not find "D" (definition) label in the code.');
$this->assertNotNull($this->use, 'Did not find "U" (usage) label in the code.');
}
