private function createScope($src)
{
$lexer = new \PHPParser_Lexer('<?php class Foo { public function foo($param1, $param2) { ' . $src . ' } }');
$parser = new \PHPParser_Parser();
$ast = $parser->parse($lexer);
$traverser = new \PHPParser_NodeTraverser();
$traverser->addVisitor(new \PHPParser_NodeVisitor_NameResolver());
$traverser->addVisitor(new NormalizingNodeVisitor());
$ast = $traverser->traverse($ast);
$traverser = new \PHPParser_NodeTraverser();
$traverser->addVisitor(new \PHPParser_NodeVisitor_NodeConnector());
$traverser->traverse($ast);
$rootNode = $ast[0];
$scopeRoot = $ast[0]->stmts[0];
$sc = new SyntacticScopeCreator();
return $sc->createScope($scopeRoot, new Scope($rootNode));
}
private function computeLiveness($src)
{
$src = '<?php class Foo { public function foo($param1, $param2) { ' . $src . ' } }';
$parser = new \PHPParser_Parser();
$lexer = new \PHPParser_Lexer($src);
$ast = $parser->parse($lexer);
$traverser = new \PHPParser_NodeTraverser();
$traverser->addVisitor(new \PHPParser_NodeVisitor_NameResolver());
$traverser->addVisitor(new NormalizingNodeVisitor());
$ast = $traverser->traverse($ast);
$traverser = new \PHPParser_NodeTraverser();
$traverser->addVisitor(new \PHPParser_NodeVisitor_NodeConnector());
$traverser->traverse($ast);
$scopeCreator = new SyntacticScopeCreator();
$scope = $scopeCreator->createScope($ast[0]->stmts[0], new Scope($ast[0]));
$cfa = new ControlFlowAnalysis();
$cfa->process($ast[0]->stmts[0]);
$cfg = $cfa->getGraph();
$lva = new LiveVariablesAnalysis($cfg, $scope);
$lva->analyze();
return $lva;
}