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<?php
namespace Psalm\Example\Plugin;
use PhpParser;
use Psalm\Checker;
use Psalm\Checker\StatementsChecker;
use Psalm\Codebase;
use Psalm\CodeLocation;
use Psalm\Context;
use Psalm\FileManipulation;
use Psalm\IssueBuffer;
use Psalm\Issue\TypeCoercion;
use Psalm\Plugin\Hook\AfterExpressionAnalysisInterface;
use Psalm\StatementsSource;
class StringChecker implements AfterExpressionAnalysisInterface
{
/**
* Called after an expression has been checked
*
* @param PhpParser\Node\Expr $expr
* @param Context $context
* @param StatementsSource $file_soure
* @param string[] $suppressed_issues
* @param FileManipulation[] $file_replacements
*
* @return null|false
*/
public static function afterExpressionAnalysis(
PhpParser\Node\Expr $expr,
Context $context,
StatementsSource $statements_source,
Codebase $codebase,
array &$file_replacements = []
) {
if ($expr instanceof PhpParser\Node\Scalar\String_) {
$class_or_class_method = '/^\\\?Psalm(\\\[A-Z][A-Za-z0-9]+)+(::[A-Za-z0-9]+)?$/';
if (strpos($statements_source->getFileName(), 'base/DefinitionManager.php') === false
&& strpos($expr->value, 'TestController') === false
&& preg_match($class_or_class_method, $expr->value)
) {
$absolute_class = preg_split('/[:]/', $expr->value)[0];
if (\Psalm\IssueBuffer::accepts(
new \Psalm\Issue\InvalidClass(
'Use ::class constants when representing class names',
new CodeLocation($statements_source, $expr),
$absolute_class
),
$statements_source->getSuppressedIssues()
)) {
// fall through
}
}
} elseif ($expr instanceof PhpParser\Node\Expr\BinaryOp\Concat
&& $expr->left instanceof PhpParser\Node\Expr\ClassConstFetch
&& $expr->left->class instanceof PhpParser\Node\Name
&& $expr->left->name instanceof PhpParser\Node\Identifier
&& strtolower($expr->left->name->name) === 'class'
&& !in_array(strtolower($expr->left->class->parts[0]), ['self', 'static', 'parent'])
&& $expr->right instanceof PhpParser\Node\Scalar\String_
&& preg_match('/^::[A-Za-z0-9]+$/', $expr->right->value)
) {
$method_id = ((string) $expr->left->class->getAttribute('resolvedName')) . $expr->right->value;
$appearing_method_id = $codebase->getAppearingMethodId($method_id);
if (!$appearing_method_id) {
if (\Psalm\IssueBuffer::accepts(
new \Psalm\Issue\UndefinedMethod(
'Method ' . $method_id . ' does not exist',
new CodeLocation($statements_source, $expr),
$method_id
),
$statements_source->getSuppressedIssues()
)) {
return false;
}
return;
}
}
}
}