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<?php declare(strict_types=1);
namespace PhpParser\NodeVisitor;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\NodeTraverser;
use PHPUnit\Framework\TestCase;
class FindingVisitorTest extends TestCase
{
public function testFindVariables() {
$traverser = new NodeTraverser();
$visitor = new FindingVisitor(function(Node $node) {
return $node instanceof Node\Expr\Variable;
});
$traverser->addVisitor($visitor);
$assign = new Expr\Assign(new Expr\Variable('a'), new Expr\BinaryOp\Concat(
new Expr\Variable('b'), new Expr\Variable('c')
));
$stmts = [new Node\Stmt\Expression($assign)];
$traverser->traverse($stmts);
$this->assertSame([
$assign->var,
$assign->expr->left,
$assign->expr->right,
], $visitor->getFoundNodes());
}
public function testFindAll() {
$traverser = new NodeTraverser();
$visitor = new FindingVisitor(function(Node $node) {
return true; // All nodes
});
$traverser->addVisitor($visitor);
$assign = new Expr\Assign(new Expr\Variable('a'), new Expr\BinaryOp\Concat(
new Expr\Variable('b'), new Expr\Variable('c')
));
$stmts = [new Node\Stmt\Expression($assign)];
$traverser->traverse($stmts);
$this->assertSame([
$stmts[0],
$assign,
$assign->var,
$assign->expr,
$assign->expr->left,
$assign->expr->right,
], $visitor->getFoundNodes());
}
}